JP6701507B2 - Biological information measurement system - Google Patents

Description

  The present invention relates to a biological information measuring system, and more particularly, to a biological information measuring system that measures a physical condition of a subject based on defecation gas discharged into a bowl of a toilet bowl installed in a toilet room.

  In recent years, with the evolution of medical technology, the mortality rate due to cancer has become extremely low due to the evolution of technology for diagnosing major diseases such as cancer and the technology of cancer treatment itself. However, it is a heavy burden for patients to go to a hospital to receive regular diagnosis for the prevention of cancer. Therefore, in reality, many patients go to the hospital after feeling unwell, and unfortunately there are still many people who develop cancer. In addition, a practical device for suppressing the development of cancer has not been developed yet, and it is the actual situation that it cannot be said to be sufficient for the realization of cancer prevention.

  In view of such a situation, the present inventors have created a device that makes it possible to easily diagnose a major disease such as cancer at home without going to a hospital, and to prevent a major disease, or to realize an early treatment. I had a strong desire to manufacture the equipment demanded by the market, and I was conducting research for a long time.

  To date, the applicant has collected the defecation gas that is mounted on the toilet seat of a Western-style toilet bowl and discharged into the bowl when the subject defecates, and based on the carbon dioxide concentration contained in this defecation gas, as a biological information index. A device for determining the amount of excreted stool (see Patent Document 1) or a deodorizing device incorporated in the toilet seat of a flush toilet is used to aspirate the defecation gas that accompanies the subject's defecation, and the carbon dioxide concentration of the inhaled gas is changed to carbon dioxide An apparatus for estimating the intestinal condition of a subject based on the measured carbon dioxide concentration measured by a gas sensor has been developed (see Patent Document 2). However, these devices have not been able to achieve the inventor's purpose of only estimating the current intestinal state and easily diagnosing a major disease such as cancer and grasping the risk status thereof. Further, there is also known a fart detection device (Patent Document 3) in which a gas sensor is arranged so as to come into contact with air in the vicinity of a human excretion portion and a fart is detected based on the peak value of the output of the gas sensor. In this fart detecting device, a tube is pulled out from the excretion part in a diaper or underwear of a patient lying on the bed, and air is sucked by a suction pump to collect the patient's fart. In addition, this fart detection device distinguishes between fart and urination based on the half-value width of the peak of the gas sensor output, so that the doctor can confirm whether or not a fart has appeared after surgery for the cecum, and detect when to change the diaper. However, the purpose of the inventor is not achieved. On the other hand, in JP-A-2014-160049 (Patent Document 4), a sensor for measuring methyl mercaptan gas from the component of the fart that the subject has thrown, a calculation unit for calculating the methyl mercaptan gas concentration obtained from this sensor, and a display And a portable colorectal cancer risk measuring device having a part for estimating the morbidity risk of colorectal cancer are known.

Further, Japanese Unexamined Patent Publication No. 9-43182 (Patent Document 5) describes a living body monitoring device. In this living body monitoring apparatus, a gas sensor is attached to a T-shaped cloth band so that the gas sensor is arranged near the anus, and the fart emitted from the anus is detected. The signal from the gas sensor is transmitted to the processing device and stored in the memory. It is also known that the data accumulated in the memory is compared with the past data and a warning is displayed on the display device when there is an abnormality such as a large difference.
Japanese Patent No. 3525157 (Patent Document 6) describes a method for measuring intestinal gas components. In this method of measuring gas components in the intestine, a sampling tube is arranged in the toilet seat of the toilet bowl. When the person to be measured turns on the main switch of the device, the suction pump operates and gas near the anus is sucked. The index gas detector constantly measures the concentration of carbon dioxide in the sucked gas, and if the measured concentration increases rapidly, the control/arithmetic processing unit recognizes that there is emission of intestinal gas. When the intestinal gas is dissipated, another suction pump is activated and part of the sucked gas is taken into the sample metering tube. The sample taken in is sent to the column, the gas component is separated, and it is ionized. It is also known that the amount of ionization is converted into an electric signal and the concentration of a gas component to be detected in intestinal gas is measured.
JP-A-2014-206945 (Patent Document 7) describes a health information utilization system. In this health information utilization system, the individual health information regarding health care input from the terminal device is separately stored in the databases of the plurality of data centers, and the analysis server device reads and analyzes the individual health information. The big data creation server device searches for personal health information under specific conditions, creates big data, and saves it. The health information utilization system allows the health content based on the knowledge of the specialized field to be browsed on the terminal device, saves and manages the personal health information in multiple data centers, and the health judgment result obtained by automatically judging the personal health information. Also, the health check result processed by the expert is browsed on the terminal. Such things are also known.

  Further, in developing a device capable of diagnosing a major disease such as cancer, it has been known in recent years that there is a correlation between a disease of colon cancer and a gas component in the intestine contained in fart or bowel movements. ing. Specifically, a colorectal cancer patient has a larger amount of methyl mercaptan gas containing a sulfur component in the gas components in the intestine than a healthy subject.

Patent No. 5131646 Patent No. 5019267 JP-A-2003-90812 JP, 2014-160049, A JP-A-9-43182 Patent No. 3525157 JP-A-2014-206945

  The gas components in the intestine are discharged as fart or defecation gas along with the feces during defecation. Therefore, as disclosed in the Nihon Keizai Shimbun on January 5, 2015, the inventors identified the fart emitted during defecation and methyl mercaptan gas in defecation gas as in the case of Patent Document 4 and the like. He continued his research, thinking that he could detect colorectal cancer in the intestine by measuring the gas of. However, a measuring device that can accurately measure only a specific gas such as methyl mercaptan gas is very expensive and large. In addition, the amount of methyl mercaptan gas contained in the defecation gas is very small, and the amount is very small at the stage before becoming cancer, so it is very difficult to measure, and at least such a gas analyzer that can be accurately measured is used at home. The inventors have faced the problem that it is not very realistic in terms of cost and size to incorporate it into a toilet device and popularize it as a consumer product.

  However, the inventors want to reduce the number of people who suffer from major diseases such as cancer. For that purpose, we continued our research with a very strong feeling that it is necessary to make a device that can be easily purchased by ordinary consumers and that can be easily diagnosed at home, and finally found a technical solution for realizing it. is there.

  The purpose of the present invention is to be easily purchased by general consumers, to prevent serious illness such as cancer by measuring defecation gas at home, or to visit a hospital in a mild condition for treatment. It is to provide a highly practical diagnostic system that can be encouraged to receive medical treatment and is truly demanded by the market.

In order to solve the above-mentioned problems, the present invention is a biological information measuring system for measuring the physical condition of a subject based on the defecation gas discharged into the bowl of a flush toilet, wherein the subject discharges the defecation gas. A suction device that sucks the gas in the bowl, and a gas sensor that reacts to odorous gases other than methyl mercaptan gas and methyl mercaptan gas that are odorous gases containing sulfur components that are contained in the gas sucked by this suction device. A gas detector provided, a controller for controlling the suction device and the gas detector, and a data analysis for analyzing the physical condition of the subject based on the first detection data regarding the odorous gas in the defecation gas detected by the gas detector The device and the output device that outputs the analysis result by this data analysis device, and whether it is the defecation period after the subject sits down on the toilet seat, or the defecation preparation period during which defecation is prepared before sitting on the toilet seat. When the defecation behavior determination sensor detects that it is in the defecation preparation period, the gas detection device detects odorous gas. Even if it is, the defecation period is determined by the physical condition analysis prohibiting means that does not adopt the detection data regarding the odorous gas detected by the gas detection device as the first detection data for analyzing the physical condition of the subject, and the defecation action determination sensor. If a predetermined rise in the odorous gas detected by the gas detection device is detected in the state that the rise is detected, the detection data after detecting this rise is used as the first detection data for the physical condition analysis. And an analysis prohibition releasing means.

  Conventionally, the actual situation is that there is no effective device other than the diagnosis at the hospital for the confirmation of whether or not a major illness such as cancer is present or the confirmation for the prevention of the major illness. On the other hand, according to the present invention, general consumers can easily purchase and measure at home. Furthermore, since the defecation gas emitted during defecation is measured, the subject does not have to bother to perform a new measuring action, and simply performing the defecation action normally causes a serious illness such as cancer. You can prevent it or go to the hospital in a mild condition to receive treatment. As described above, according to the present invention, it is possible to realize a device truly demanded by the market and to provide a highly practical diagnostic system.

  Before specifically explaining the effects of the present invention, a technical concept that enables a system that can be popularized as a consumer product in general households will be described. The key point is the understanding of the idea of reversal and the characteristics of major diseases such as cancer, and effective knowledge of dichotomy using it.

  Specifically, one of the key points of the system of the present invention is the reversal idea that a device installed in each home does not diagnose a major illness such as cancer. In other words, the general consumer who purchases the device does not want to know that he/she has cancer, but that he/she has an increased risk of cancer at the stage before the cancer (hereinafter, this stage is referred to as “non-illness”). The real intention is to recognize and improve our future life so that we will not get cancer. That is, it is because the device required for general households is considered to be valuable in that a healthy person can accurately understand the cancer risk and can improve his/her physical condition so as not to have cancer.

  Next, one of the key points of the system of the present invention is an apparatus for diagnosing a specific type of cancer such as rectal cancer, or an apparatus capable of diagnosing an increased risk of a specific type of cancer. It's not a divisor. This is because the subject is not anxious about a specific type of cancer such as rectal cancer, but is anxious about any cancer. Therefore, the inventors do not mean that there is no commercial value unless a specific type of cancer is diagnosed, and there is absolutely no need for accuracy to specify the type of cancer, and the type of cancer can be specified. It was decided that such measurement accuracy is unnecessary.

Hereinafter, the peculiar effects of the system according to the present invention constructed based on these findings and effective division will be described.
In the present invention, since the physical condition of the subject is analyzed by measuring the defecation gas discharged into the bowl of the toilet bowl, the subject does not need to take any measurement action and simply defecates normally. It can be diagnosed only. Further, since there is no trouble, the subject is not burdened, and the measurement can be continued for a long period of time to reliably obtain information on changes in health status and situations where cancer risk is increasing.

Further, in the present invention, a sensor that measures methyl mercaptan gas pinpoint is not used, but a sensor that widely reacts to odorous gases other than methyl mercaptan gas in defecation gas is used. When a sensor that measures methyl mercaptan gas in pinpoint is used, colorectal cancer can be reliably detected because there is a correlation between the amount of methyl mercaptan gas and colorectal cancer, and the risk of cancer is increasing. Can be surely understood from the amount. However, this increases the risk of cancer to some extent, and unless the amount of methyl mercaptan gas increases, it cannot be determined that the risk of cancer has increased, and it is unsuitable in the present invention for the purpose of preventing cancer. I realized that.
On the other hand, in the case of a sensor that widely reacts to odorous gas, not only an increase in cancer risk but also a poor physical condition can be detected. Specifically, first, in a state where the risk of cancer is high, a very strong odorous gas containing sulfur components such as methyl mercaptan gas and hydrogen sulfide increases. A sensor that reacts widely to odorous gas can always detect such an increase in gas. Therefore, it is possible to determine that the cancer risk is increasing even if a sensor that widely reacts to odorous gases other than methyl mercaptan gas in defecation gas is used. Thus, a sensor that is also broadly responsive to odorous gas functions in this respect similar to a sensor that measures methyl mercaptan gas pinpoint.

Further, in the present invention, not only methyl mercaptan gas, using a gas detection device that also reacts to odorous gas in defecation gas other than methyl mercaptan gas, just by knowing the amount of odorous gas in the defecation gas, The amount of methyl mercaptan gas cannot be measured, and the cancer state cannot be accurately specified. However, by using a gas detection device that reacts not only to methyl mercaptan gas but also to odorous gas in defecation gas other than methyl mercaptan gas, the present inventors conversely increase the risk of cancer in healthy people. It has been found that the device effectively functions as a device for preventing the existing condition and the risk of becoming cancer. More specifically, healthy people have a low total amount of methyl mercaptan gas and odorous gases other than methyl mercaptan gas. On the other hand, the total amount of methyl mercaptan gas and odorous gases other than methyl mercaptan gas temporarily increases due to deterioration of the intestinal environment in addition to cancer. Deterioration of the intestinal environment is specifically deterioration of the intestinal environment due to factors such as excessive constipation, types of diet, lack of sleep, overeating, overdose, excessive stress, and the like. However, it can be said that all of these factors are bad lifestyles. Although cancer is caused by bad lifestyle, until now, even if the risk of cancer is increased, there is no means to recognize it, and many people are currently in a good belief that they are okay. I keep on habiting.
As described above, when the bad lifestyle as described above is performed, all or one of the odorous gases in the defecation gas such as methyl mercaptan, hydrogen sulfide, acetic acid, trimethylamine, and ammonia increases. On the other hand, the present invention is not limited to methyl mercaptan gas, hydrogen sulfide, acetic acid, trimethylamine, ammonia and other physical conditions based on the detection data of the gas detection device for detecting odorous gas in defecation gas other than methyl mercaptan gas. Is being analyzed. Therefore, the analysis result based on the total amount of odorous gas in the defecation gas reflects the result of poor physical condition and bad lifestyle of the subject, and the analysis result shows the physical condition and lifestyle that increase such cancer risk. It can be used as an index based on objective data to improve the cancer, that is, it can be used as an effective index to maintain the health condition and reduce the risk of becoming cancer, and has the purpose of improving lifestyle and suppressing cancer risk. The inventors have found that it is an excellent effect that works extremely effectively.
As described above, according to the present invention, since odorous gases other than methyl mercaptan gas and methyl mercaptan gas are measured, it is in a state where the cancer risk is increased, and when such a state is continued for a long time. It has become possible to perform measurement so that the subject can be notified of a suitable warning that cancer will occur. The present inventors have found suitable knowledge for the purpose of reducing the number of people who have cancer due to the so-called reversal idea.
Furthermore, according to the present invention, since the sensor that widely reacts to not only methyl mercaptan gas but also odorous gases other than methyl mercaptan gas is used, the device can be manufactured at low cost and can be provided as a consumer product. It became possible. As a result, it is possible to easily diagnose at home and prevent serious diseases such as cancer from occurring in advance, or it is possible to encourage patients to go to a hospital in a mild condition to receive treatment. It was able to meet the requirements sufficiently.

  In the present invention using a sensor that widely reacts to odorous components, the detection data includes offensive odorous gas components such as sweat and urine adhering to the subject, perfume, and odorous gas remaining in the toilet and toilet space attached to the toilet bowl. It is affected by fragrances and alcohol disinfectants. In particular, if the perfume or fragrance is strong, or if the body or toilet space is unsanitary, the measurement accuracy may decrease. Also, when used immediately after defecation by another person, there is a high possibility that unpleasant odor components such as defecation gas and adhered odor of the person who used before will remain in the toilet bowl or toilet space, which is unhygienic. It is conceivable that the measurement may be affected even if it is not in space.

  Further, as described above, it is disclosed in the prior art document (Patent Document 3, etc.) that odorous gas can be measured by an odorous gas sensor, but this technique is laid in bed for postoperative judgment of the cecum. It detects a fart in the bedding of a patient who is present. It turned out that there is a peculiar problem when this technique is applied to the toilet bowl. Specifically, first, it does not make sense to measure a major disease such as colorectal cancer in bedding by defecation gas. Accurate measurement is required for patients who have advanced to bedridden disease, and physical condition measurement by detecting defecation gas is not suitable. Since a defecation gas measuring device is expected as a device for measuring the progress of a large disease or a state where the colorectal cancer progresses at a low level, it is a relatively healthy and urinal bowl for healthy people and post-operative patients. It is intended for people who can defecate in, and needs to be installed in the toilet bowl. Therefore, it is not possible to directly adopt the above prior art.

  In addition, the gas concentration in the bedding is unlikely to change, and since the gas stays in the futon, the sensor for detection does not need high responsiveness. Can detect fart. However, if this knowledge is applied to a measuring device installed in a toilet bowl, the detection value of the sensor will rapidly increase when the subject enters the room, and the detection value will also change depending on the amount of perfume of the subject and the amount of dirt on the toilet bowl. , The detection value may not increase when the toilet bowl is clean. Also, the detection value increases sharply when the subject removes his underwear, or the detection value changes even if he approaches the flush toilet. Furthermore, there are many people who perform actions such as cleaning the toilet seat with alcohol, etc., and in that case also, the detected value rapidly increases. Therefore, it is not easy to collect the defecation gas as in the invention described in Patent Document 3 simply by detecting the sudden increase in the detected value.

In addition, the measuring device installed in the flush toilet may cause incorrect measurement of odorous gas in the device that measures and analyzes the defecation gas on the spot by the measuring device installed in the flush toilet. Unique challenges were also found. This is because the odorous gas component in the defecation gas is light and immediately rises without staying in the bowl of the flushed toilet bowl, which requires a highly sensitive sensor for measurement. When such a highly sensitive sensor is used, there is a problem that the change in the gas component attached to the subject may be erroneously measured when preparing for defecation.
Against this problem, the present inventors have deeply studied the defecation behavior of the human toilet in the toilet room, prevent erroneous measurement only by using the defecation behavior, and accurately ascertain only defecation gas accompanying excretion. It was found that it can be measured.

  In the defecation behavior for the toilet bowl, a series of behaviors such as entering a room, looking back at the toilet bowl, taking off pants and clothes, and sitting behavior are performed at a minimum. There is always some time, and the concentration of odorous gas detected associated with behavior during this period changes. The time to prepare for defecation is earlier in younger people, longer in older people, longer in winter, and shorter in summer. There is such a large individual difference in time. Here, it was found that the detected odorous gas concentration changes during the period of preparation for defecation, but does not change after sitting on the toilet seat or during the sitting behavior. It was discovered that the maximum concentration of odorous gas adhering to the subject can be completed before sitting, and that the amount of gas increases after sitting does not occur except for defecation gas. by. It should be noted that urination does not turn into ammonia during one defecation period and is not measured as the amount of odorous gas. Furthermore, in a flush toilet, since urine is used as sealing water, it does not become ammonia and does not mix with defecation gas.

  Based on such knowledge, the present invention directly detects defecation behavior when measuring defecation gas for a flush toilet, whether it is a defecation period or a defecation preparation period, not the elapsed time after entering the room. Judgment is made with a simple structure called an action judgment sensor. In addition, even if a change in odorous gas is detected during the defecation preparation period, it is not possible to use the detected data as data for analyzing the physical condition of the subject. This is a physical condition measurement without measurement.

  In the present invention, preferably, the data analysis device further has an odor not caused by the defecation gas of the subject detected by the gas detection device in a state where the defecation behavior determination sensor detects that it is the defecation preparation period. Equipped with an odor noise reference value setting circuit that sets the odor noise reference value based on the volatile gas, the physical condition analysis prohibition release means has a positive change rate from the odor noise reference value after shifting to the defecation period. The detection data after the time when the value becomes the predetermined value or more is used for the physical condition analysis as the first detection data.

  In the present invention thus configured, the reference value of the odor noise is set based on the odorous gas other than the stool gas detected by the gas detection device during the stool preparation period. Since the detection data after the time when the rate of change from the reference value of this odorous noise becomes a positive predetermined value or more is used for physical condition analysis, the effect of odorous gas not caused by defecation gas is effectively eliminated. Thus, the excretion behavior by the subject can be accurately grasped.

  In the present invention, preferably, the defecation behavior determination sensor is configured by a seating detection sensor that detects whether or not the subject is seated on the toilet seat, and the physical condition analysis prohibition unit detects that the subject is seated by the seating detection sensor. The point at which the defecation is performed is determined as the start point of the defecation period.

  The subject must always sit on the toilet seat before defecation, and it is highly probable that the increase in odorous gas in the bowl after the subject is seated is due to defecation or fart. it can. According to the present invention configured as described above, the time when the seating of the subject is detected by the seating detection sensor is determined as the start point of the defecation period, and the increase in odorous gas after that is adopted for the analysis of the physical condition. The start point of the defecation period can be detected with an extremely simple configuration, and erroneous measurement can be effectively prevented.

  In the present invention, preferably, further has a local cleaning device, the local cleaning device is provided with a sensor for detecting the seating of the subject on the toilet seat, in order to determine whether or not the cleaning water for local cleaning can be injected. This sensor is also used as a seating detection sensor.

  According to the present invention configured as described above, the sensor for detecting the seating of the subject on the toilet seat, which is provided in the local cleaning device, is also used as the seating detection sensor, and therefore the local cleaning device is necessarily provided. The existing sensor can be used, and the cost of the biological information measuring system can be suppressed. As a result, the biological information measuring system can be widely spread in general households.

  In the present invention, preferably, further has a toilet bowl use preparation determination means for determining whether or not the defecation preparation period by the subject has started, the control device, when performing the measurement of odorous gas, the detection unit of the gas sensor Is set to a first temperature, and the temperature of the detection unit is set to a second temperature lower than the first temperature during standby, and the control device causes the toilet urinal use preparation determining unit to set the defecation preparation period. When it is determined that the odor noise has started, the temperature of the detection unit is increased from the second temperature to the first temperature before the seating detection sensor detects the seating, and the odor noise reference value setting circuit causes the odor noise to be detected. Start setting the standard value of.

  In general, the detection part of a gas sensor operates in a state of being heated to a high temperature, so if left in an odorous gas containing hydrogen sulfide for a long time, hydrogen sulfide will oxidize and become sulfur dioxide, which is difficult to remove. Has been found by the inventor. In the present invention configured as described above, during standby, the temperature of the detection unit is set to the second temperature, which is lower than the first temperature at the time of measurement, so that the production of sulfur dioxide is effectively suppressed. be able to. Further, when it is determined that the defecation preparation period has started, the temperature of the detection unit is raised to the first temperature before the seating detection sensor detects the seating. Therefore, the odorous gas is measured before the seating. Will be able to do. Thereby, it is possible to set the reference value of the odor noise while suppressing the generation of sulfur dioxide, and it is possible to achieve both the durability of the gas sensor and high measurement accuracy.

  In the present invention, preferably, the physical condition analysis prohibition canceling means detects the initial excretion including the first excretion during which the rate of change of the odorous noise from the reference value is equal to or more than a positive predetermined value during the defecation period. The data is used for the physical condition analysis as the first detection data.

  In a single defecation period, the defecation gas excreted in the first excretion of the subject is the gas that has been present in the subject's body for the longest period of time and has stayed near the rectum. It has been found by the present inventors that it is the most useful gas for measuring physical condition. According to the present invention configured as described above, during the defecation period, the rate of change of the odorous noise from the reference value is the detection data regarding the initial excretion including the first excretion at which the odorous noise is initially a positive predetermined value or more. Is used for physical condition analysis, the physical condition of the subject can be accurately measured.

  In the present invention, preferably, the physical condition analysis prohibition releasing means is excreted during the defecation period when the rate of change from the reference value of the odorous noise is equal to or higher than a positive predetermined value for the first time, and after the excretion. The detection data relating to excretion that meets a predetermined condition is adopted as the first detection data in the physical condition analysis, and the other detection data relating to excretion during the defecation period is not adopted in the physical condition analysis.

  As described above, the defecation gas in the first excretion of the subject is the most useful gas for physical condition measurement, but the amount of gas in the first excretion is small and a large amount of the defecation gas may be excreted in the second excretion. It was found by the inventor of the present invention that this is not a little. According to the present invention configured as described above, the detection data relating to the first excretion and excretion conforming to the predetermined conditions after this excretion are adopted for the physical condition analysis, and the other detected data relating to excretion are analyzed for the physical condition. Therefore, it is possible to further improve the measurement accuracy of the physical condition, and it is possible to prevent the measurement accuracy from decreasing due to the use of unnecessary detection data.

  In the present invention, preferably, the physical condition analysis prohibition releasing means is a gas having a gas amount of a predetermined amount or more, excreted within a predetermined number of times determined in advance from the first excretion, or excreted within a predetermined time. As the excretion which meets the predetermined condition, the detected data is adopted for the physical condition analysis.

  According to the present invention configured as described above, when the amount of gas is a predetermined amount or more, excretion within a predetermined number of times determined in advance from the first excretion, or excretion performed within a predetermined time is in a physical condition. Since it is adopted for analysis, it is possible to reliably use useful defecation gas data for physical condition analysis while eliminating unnecessary detection data.

  In the present invention, preferably, the physical condition analysis prohibition canceling means detects only the detection data regarding excretion in which the rate of change of the odorous noise from the reference value is equal to or more than a positive predetermined value during the defecation period. Used as detection data for physical condition analysis.

  According to the present invention having such a configuration, only the detection data relating to the first excretion is used for the physical condition analysis, so that unnecessary detection data can be reliably excluded. Further, by eliminating the data other than the first excretion, even if the number of detection data decreases, physical condition measurement of colorectal cancer etc. is achieved by a large number of measurements over a long period of time. Accurate physical condition measurement can be performed while avoiding erroneous measurement.

  In the present invention, preferably, the gas detection device is configured to detect a health system gas composed of at least one of hydrogen gas, carbon dioxide gas, methane gas, and acetic acid gas contained in the defecation gas sucked by the suction device. The data analysis device is configured to analyze the physical condition of the subject based on the first detection data regarding the odorous gas and the second detection data regarding the health-related gas, and the physical condition analysis prohibition releasing means during the defecation period. The first detection data and the second detection data regarding the same excretion in the initial stage are used for the physical condition analysis.

  The odorous gas contained in the defecation gas is extremely small, and the amount changes depending on the subject's temporary physical condition and the food ingested. According to the present invention configured as described above, the physical condition of the subject is analyzed based on the first detection data regarding the odorous gas and the second detection data regarding the health-related gas, so that the physical condition of the subject can be evaluated multilaterally. can do. In addition, since the physical condition of the subject is analyzed based on the odorous gas and the healthy gas related to the same initial excretion, the physical condition is analyzed using the correlation between the odorous gas contained in the defecation gas and the healthy gas. It is possible to measure the physical condition more accurately.

  According to the biological information measuring system of the present invention, it can be easily purchased by general consumers, and it is possible to prevent serious illness such as cancer due to the measurement of defecation gas at home, or a hospital in a mild state. It is possible to provide a highly practical biological information measurement system that can be encouraged to visit a hospital and receive medical treatment, and which is truly demanded by the market.

It is a figure which shows the state which attached the biometric information measuring system by 1st Embodiment of this invention to the flush toilet installed in the toilet room. It is a block diagram which shows the structure of the biological information measuring system of 1st Embodiment of this invention. It is a figure which shows the structure of the gas detection device with which the biological information measuring system of 1st Embodiment of this invention was equipped. It is a figure explaining the flow of physical condition measurement by the living body information measuring system of a 1st embodiment of the present invention. It is a figure showing an example of a screen displayed on a display of a remote control with which a living body information measuring system of a 1st embodiment of the present invention is equipped. It is a figure which shows an example of the physical condition display table displayed on the display device of the remote control with which the biological information measuring system of 1st Embodiment of this invention was equipped. (A) is a figure which shows an example of the movement by the correction|amendment of the plot point of the newest data, (b) is a figure which shows the limit process with respect to the movement amount of a plot point. It is a figure which shows an example of the diagnostic table displayed on the server side in the biological information measuring system of 1st Embodiment of this invention. It is a graph which showed typically the detection signal by each sensor with which living body information measuring system 1 was equipped in one defecation behavior of a subject. (A) It is a figure explaining emission amount estimation of odorous gas when the reference value of residual gas is not constant, (b) is a detection value by the odorous gas sensor when a subject uses an alcoholic toilet seat disinfectant It is a graph which shows an example. It is a figure which shows an example of the update of a diagnostic table. It is a figure for demonstrating the method of determining measurement reliability. It is a figure which shows a test subject adhesion offensive odor gas noise correction table for determining the influence of the offensive odor gas adhering to a test subject's body or clothes. It is a figure which shows the humidity correction table for determining the influence of humidity. It is a figure which shows the temperature correction table for determining the influence of temperature. It is a figure which shows the excretion number correction table for determining the influence of the excretion number. It is a figure which shows the correction table which shows the relationship between the reliability recorded on the data analysis apparatus, and the correction factor of a measured value. It is a figure which shows an environmental noise correction table. It is a figure which shows a reference value stability correction table. It is a figure which shows a disinfection toilet seat cleaning correction table. It is a figure which shows the defecation gas total amount correction value table. It is a figure which shows a fart correction value table. It is a figure which shows a stool volume correction value table. It is a figure which shows a flight type correction value table. It is a figure which shows the defecation interval correction value table. It is a figure which shows a data storage amount correction table. It is a figure which shows an air volume correction value table. It is a diagram showing a CO ₂ compensation table. It is a figure which shows a methane gas correction table. It is a figure which shows a sulfide gas correction table. FIG. 6 is a diagram showing the relationship between the discharge time and the discharge amount of each of the conditions S1, S2, and S3 in which the total discharge amount of the defecation gas is constant, but the discharge time and the discharge amount (discharge concentration) per time are different. It is a figure which shows the detection waveform of a gas sensor when the discharge time and the discharge amount per time are changed. The amount of gas calculated based on the detection waveform of the gas sensor is shown. FIG. 33 is a diagram showing an initial portion of a detection waveform of the gas sensor shown in FIG. 32 with an enlarged time axis. 6 is a graph showing the relationship between the discharge amount (discharge density) per unit time and the rising slope of the detection data waveform detected by the sensor. Gas estimated based on the product of the slope of the detection waveform of the semiconductor gas sensor and the arrival time to the peak (gas sensor waveform area) for each condition S1, S2, and S3 in which the discharge time and the discharge amount (discharge concentration) per hour are different. It is a figure which shows quantity. (A) is a figure which shows the state which attached the subject side apparatus of the biological information measuring system by another embodiment to the flush toilet installed in the toilet room, (b) shows the same figure (a). It is a perspective view showing a measuring device of a subject side device. It is a figure which shows the structure of the suction device of another embodiment of this invention. It is a figure which shows the structure of the gas detection apparatus comprised so that the influence of hydrogen gas may be isolate|separated by shifting the arrival time of the hydrogen gas and odorous gas to the odorous gas sensor by another embodiment of this invention. It is a figure which shows the detection waveform detected by the semiconductor gas sensor of the gas detection apparatus shown in FIG. It is a figure which shows the result of having measured the amount of the healthy type|system|group gas contained in the defecation gas and the amount of the odorous gas of the healthy person 60s or less, the healthy person 60s-70s, the patient of early stage cancer, and the patient of advanced cancer. .. It is the figure which compared the gas amount of the hydrogen sulfide contained in defecation gas between a healthy subject and a colon cancer patient. It is the figure which compared the gas amount of the methyl mercaptan gas contained in defecation gas between a healthy subject and a colon cancer patient. It is the figure which compared the gas amount of the hydrogen gas contained in defecation gas between a healthy subject and a colon cancer patient. It is the figure which compared the gas amount of the carbon dioxide gas contained in defecation gas between a healthy subject and a colon cancer patient. It is the figure which compared the gas amount of the propionic acid gas contained in defecation gas with a healthy subject and a colon cancer patient. It is the figure which compared the gas amount of the acetic acid gas contained in defecation gas with a healthy subject and a colon cancer patient. It is the figure which compared the gas amount of the butyric acid gas contained in defecation gas between a healthy subject and a colon cancer patient.

Hereinafter, one embodiment of the biological information measuring system of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a view showing a state in which the biological information measuring system according to the first embodiment of the present invention is attached to a flush toilet installed in a toilet room. FIG. 2 is a block diagram showing the configuration of the biological information measuring system of this embodiment. FIG. 3 is a diagram showing a configuration of a gas detection device provided in the biological information measuring system of the present embodiment.

  As shown in FIG. 1, the biological information measuring system 1 includes a measuring device 6 installed inside a toilet seat 4 placed on a flush toilet 2 installed in a toilet room R, and a wall surface of the toilet room R. It has a subject side device 10 consisting of a mounted remote controller 8. Further, as shown in FIG. 2, the biological information measuring system 1 includes a server 12, a subject terminal 14 in which dedicated software is installed in a smartphone or the like, a medical institution terminal 16 installed in a medical institution such as a hospital, , Which perform part of the functions of the biological information measuring system 1 by exchanging data with the subject-side device 10. Further, the server 12 and the medical institution terminal 16 accumulate measurement data transmitted from a large number of subject side devices 10 and perform data analysis.

In the biological information measuring system 1 of the present embodiment, a subject is in a physical condition including determination of cancer based on an odorous gas containing a sulfur component in the defecation gas released during defecation, particularly methyl mercaptan (CH ₃ SH) gas. It is an analysis. Furthermore, in the biological information measuring system 1 of the present embodiment, not only odorous gas but also healthy gas is measured, and the analysis accuracy of the physical condition is improved based on the correlation between them. The health-related gas is a gas derived from intestinal fermentation, which increases as the intestinal health increases, and more specifically, it is a gas such as carbon dioxide, hydrogen, methane, or a short-chain fatty acid. In the present embodiment, carbon dioxide gas and hydrogen gas, which are easy to measure and have a large amount, can maintain the reliability of the measurement of the health index with high reliability as the health system gas. Here, each subject-side device 10 is configured to display the analysis result during or immediately after defecation of the subject. On the other hand, in the server 12, the measurement results of a large number of test subjects are accumulated, and more detailed analysis can be performed by comparison with other test subjects. As described above, in the biological information measuring system 1 of the present embodiment, the subject-side device 10 installed in the toilet room R performs simple analysis and the server 12 performs more detailed analysis.

Here, the principle of measuring the physical condition in the biological information measuring system 1 of the present embodiment will be described.
It has been reported in the literature that when a person suffers from cancer of the digestive system, especially colorectal cancer, odorous gas containing a sulfur component such as methylmercaptan and hydrogen sulfide is discharged from the affected area at the same time as defecation. The digestive system is the esophagus, stomach, duodenum, small intestine, large intestine, liver, pancreas, gallbladder, and the large intestine can be classified into the appendix, cecum, rectum, and colon. .. Cancer has little daily change and gradually progresses. As the cancer progresses, the amount of odorous gas containing sulfur components, especially methyl mercaptan, increases. That is, when the amount of the odorous gas containing the sulfur component increases, it can be determined that the cancer has progressed. Further, in recent years, the idea of “unill” has been spreading, and the idea of improving the physical condition and preventing the disease is spreading when the physical condition deteriorates before becoming a disease state. Therefore, it is required to detect a cancer, particularly a progressive cancer such as colorectal cancer, before it becomes cancer and improve the physical condition.

  Here, in addition to hydrogen sulfide and methyl mercaptan, defecation gas excreted during defecation includes nitrogen, oxygen, argon, water vapor, carbon dioxide, hydrogen, methane, acetic acid, trimethylamine, ammonia, propionic acid, methyl disulfide, and trisulfate. Contains methyl sulfide, etc. Of these, it is necessary to measure an odorous gas containing a sulfur-based component, particularly methyl mercaptan, in order to determine a cancer disease. Propionic acid, methyl disulfide, and methyl trifluoride contained in the defecation gas are extremely small compared to methyl mercaptan, and therefore, they do not pose a problem for the analysis of physical condition such as the determination of cancer and can be ignored. However, the amount of other gas components cannot be said to be negligible. In order to accurately determine cancer, it is naturally conceivable to use a sensor that can detect only odorous gas containing a sulfur component. However, since a sensor that detects only an odorous gas containing a sulfur component is large and very expensive, it is difficult to configure it as a household appliance.

  On the other hand, as a result of intensive studies, the inventors have found that not only methyl mercaptan in defecation gas is detected but also a low cost by using a gas sensor that detects odorous gas including other odorous gases. I came up with the idea that it can be configured as a household device. Specifically, the inventors use a general-purpose semiconductor gas sensor or solid electrolyte sensor that reacts not only with sulfur-containing gas containing a sulfur component but also with other odorous gas as a sensor for detecting gas. And

  With an increased risk of cancer, very strong odorous gas containing sulfur components such as methyl mercaptan gas will increase. A sensor that widely reacts to odorous gas, such as a semiconductor gas sensor or a solid electrolyte sensor, can always detect such an increase in gas. However, as described later, sensors that widely react to odorous gases, such as semiconductor gas sensors and solid electrolyte sensors, increase in hydrogen sulfide, methyl mercaptan, acetic acid, trimethylamine, and ammonia, which increase when physical condition becomes unwell due to bad lifestyle. It also detects odorous gas. However, cancer is a disease that progresses over a long period of several years, and in the case of cancer, the state in which a very strong odorous gas containing sulfur components such as methyl mercaptan gas and hydrogen sulfide becomes strong becomes strong. It lasts for a long time. Therefore, even if a general-purpose semiconductor gas sensor or solid electrolyte sensor that reacts not only to sulfur-containing gas containing a sulfur component but also to other odorous gas is used, if the gas amount is high for a long time, It can be judged that there is a high possibility of the disease and the cancer risk is increased.

  Further, a semiconductor sensor or a solid electrolyte sensor using an oxidation/reduction reaction detects not only methyl mercaptan gas but also odorous gases such as acetic acid, trimethylamine, and ammonia in defecation gas. However, as a result of an experiment, the inventors have found that the amount of hydrogen sulfide, methyl mercaptan, acetic acid, trimethylamine, and odorous gases such as ammonia mixed increases as the physical condition worsens due to bad lifestyle, and the physical condition is good. It has been found that it shows a decreasing tendency. Specifically, a healthy person has a low total amount of methyl mercaptan gas and odorous gases other than methyl mercaptan gas. On the other hand, the total amount of odorous gases other than methyl mercaptan gas and methyl mercaptan gas is excessive constipation and the type of the intestinal environment due to factors such as meal type, lack of sleep, overdose, overdose, excessive stress, etc. It temporarily rises due to deterioration.

The acetic acid in the defecation gas tends to increase not only when the physical condition is deteriorated due to diarrhea or the like but also when the physical condition is good. That is, the tendency of the gas amount of other odorous gases such as methyl mercaptan accompanying the above-mentioned physical condition change does not always match. However, the amount of acetic acid gas contained in the defecation gas is much smaller than that of methyl mercaptan, and even if the amount of acetic acid gas increases when the person is in good physical condition, the amount of increase is the amount of decrease of other odorous gases. Very small compared to. Furthermore, the amount of increase in acetic acid when the physical condition deteriorates due to diarrhea is much larger than the amount when the physical condition is good. Therefore, the amount of odorous gas contained in the defecation gas tends to increase when the physical condition deteriorates due to bad lifestyle and decreases when the physical condition is good. And since the intestinal environment is deteriorated due to such bad lifestyle, it becomes cancer. Therefore, the amount of odorous gas contained in the defecation gas improves the physical condition while the cancer is in the non-illness state. It is a suitable index for
In the present embodiment, not only methyl mercaptan gas, but also hydrogen sulfide, acetic acid, trimethylamine, physical condition based on the detection data of the semiconductor sensor or solid electrolyte sensor that reacts with odorous gas in defecation gas other than methyl mercaptan gas such as ammonia Analyze. As a result, analysis results that reflect the results of poor physical condition and bad lifestyle are obtained, and this analysis result should be used as an index based on objective data to improve physical condition and lifestyle that increase cancer risk. You can

Further, defecation gas contains not only odorous gas but also H ₂ and methane. When a semiconductor gas sensor or a solid electrolyte sensor is used as the gas sensor, these sensors also react with H ₂ and methane. Will end up. Furthermore, when a measuring device using a semiconductor gas sensor or a solid electrolyte sensor is set in each home, these sensors may react with an aromatic agent or a perfume.
On the other hand, the inventors use a hydrogen sensor, a methane sensor, or a column to separate the influence of hydrogen or methane from the detection data of the semiconductor gas sensor or the solid electrolyte sensor, as described later in detail, and We established a method to remove the influence of fragrance and perfume as noise by detecting defecation behavior. This will separate the effects of hydrogen and methane from the data detected by semiconductor gas sensors and solid electrolyte sensors, and further remove the effects of fragrances and perfumes to estimate only the amount of odorous gas in defecation gas. Became possible.

Further, the amount of methyl mercaptan and other odorous gases contained in the defecation gas is much smaller than that of H ₂ and methane. Therefore, even if a semiconductor gas sensor or a solid electrolyte sensor is used, the mixed gas amount of these odorous gases may not be accurately measured.
On the other hand, the present inventors have found that healthy people have acidic intestinal environment, but when they become cancer patients, odorous gas containing a sulfur component is generated and the amount of the gas increases. Also, the intestinal environment becomes alkaline, and the amount of bifidobacteria and the like decreases, so that the amount of healthy gases of fermentation components such as CO ₂ , H ₂ and fatty acids is inversely proportional to the increase of the amount of odorous gas. We paid particular attention to the fact that there is a continuous decrease.
For this reason, although the measurement accuracy is not necessarily high in each measurement, the inventors have made a daily correlation between the amount of odorous gas such as methyl mercaptan and the amount of healthy gas components such as CO ₂ and H ₂ . We thought that the occurrence of advanced cancer could be detected by monitoring during defecation.

  Therefore, the inventors measured the amount of odorous gas and healthy gas contained in the defecation gas of healthy subjects in their 60s or less, healthy subjects in their 60s to 70s, patients with early stage cancer, and patients with advanced cancer. The result was as shown in FIG. That is, the defecation gas of a healthy person has a large amount of healthy system gas and a small amount of odorous gas. On the other hand, the defecation gas of a cancer patient has a small amount of healthy gas and a large amount of odorous gas. The amount of healthy gas contained in the defecation gas of advanced cancer is smaller than that of early cancer. Furthermore, when the amount of the healthy system gas and the amount of the odorous gas are intermediate amounts between the cancer patient and the healthy person, it is considered to be in the gray zone, that is, the non-illness state. Therefore, based on the above findings, the inventors believe that it is possible to measure the gas amount of the healthy system gas and the gas amount of the odorous gas of the subject and improve the accuracy of the determination of the health state based on these correlations. It was

Further, FIGS. 42 to 48 show measurement data obtained by comparing the amounts of various gases contained in the defecation gas between a healthy subject and a colon cancer patient (including advanced cancer and early cancer).
FIG. 42 is a diagram comparing the amount of hydrogen sulfide gas contained in defecation gas between a healthy subject and a colon cancer patient, FIG. 43 is methyl mercaptan gas, FIG. 44 is hydrogen gas, FIG. 45 is carbon dioxide gas, and FIG. 46 is a figure which compares the amount of propionic acid gas, FIG. 47 is acetic acid gas, and FIG. 48 is a figure which compared the amount of butyric acid gas with a healthy subject and a colon cancer patient, respectively. In each of these figures, in (a), the measurement data of each gas amount is shown by a circle with a circle for a healthy person and a triangle with a colon cancer patient. Further, in (b), the average value of each measurement data is shown by a bar graph, and the standard deviation of the measurement data is shown by a line segment.

  As is clear from the measurement data of FIGS. 42 to 48, although the amounts of various gases contained in the defecation gas vary widely between healthy subjects and patients with colorectal cancer, hydrogen sulfide gas and methyl mercaptan, which are odorous gases, are present. Regarding gas, there are many data showing a large amount of gas in colorectal cancer patients, and there is almost no data showing a large amount of gas in healthy subjects. On the other hand, regarding hydrogen gas and carbon dioxide gas, there are many data showing a large amount of gas in healthy subjects, and almost no data showing a large amount of gas in colorectal cancer patients. As described above, the amount of odorous gas contained in defecation gas indicating the risk of colorectal cancer is high in colorectal cancer patients and small in healthy subjects, whereas hydrogen gas and dioxide, which are healthy gases, are included. The amount of carbon gas is high in healthy individuals and low in colorectal cancer patients. As described above, the relationship between the amount of odorous gas and the amount of healthy gas is reversed between the healthy subject and the colorectal cancer patient. This measurement data shows that although it is difficult to measure the physical condition of the subject sufficiently by measuring the amount of odorous gas and healthy gas at one time, the relationship between the odorous gas and the healthy gas can be measured in a predetermined period. It is shown that the physical condition of the subject can be reliably measured by continuously measuring a plurality of times.

In addition, the inventors of the present invention measured the defecation gas and found that when performing defecation actions multiple times (acts of expelling one fart or one stool) during one defecation, the first defecation was performed. It was found that the amount of defecation gas discharged in accordance with the act was large and a large amount of odorous gas was also contained. Therefore, in this embodiment, in order to accurately measure a small amount of odorous gas, the subject's health condition is analyzed based on the first defecation gas. As a result, when measuring the gas amount in the second and subsequent excretion actions, there is a possibility that the feces or fart discharged by the first excretion action may be affected, so this effect could be reduced.
The biological information measuring system 1 of the present embodiment is based on the above-described measurement principle. The odorous gas in the following description includes methyl mercaptan gas which is an odorous gas containing a sulfur component, and hydrogen sulfide other than methyl mercaptan, methyl mercaptan, acetic acid, trimethylamine, and odorous gases such as ammonia. It is a waste.

Next, a specific configuration of the biological information measuring system 1 of this embodiment will be described in detail.
As shown in FIG. 1, the subject-side device 10 in the biological information measuring system 1 is attached to the flush toilet 2 in the toilet room R, and a part of the toilet seat 4 with a buttocks washing function is incorporated. As the measuring device 6, the toilet seat 4 with a buttocks cleaning function includes a suction device 18 for sucking the gas in the bowl 2a of the flush toilet 2 and a gas detection device 20 for detecting a specific component contained in the sucked gas. It has been incorporated. The suction device 18 also has a part of the function of the deodorizing device incorporated in the toilet seat 4 with a normal buttocks washing function, and the gas sucked by the suction device 18 is deodorized by the deodorizing device and then the bowl 2a. Returned inside. Further, each device incorporated in the toilet seat 4, such as the suction device 18 and the gas detection device 20, is controlled by the control device 22 (FIG. 2) built in the toilet seat side.

As shown in FIG. 2, the subject-side device 10 includes a measurement device 6 incorporated in the toilet seat 4 and a data analysis device 60 incorporated in the remote controller 8.
The measuring device 6 includes a control device 22 having a CPU 22a and a storage device 22b. The control device 22 includes a hydrogen gas sensor 24, an odorous gas sensor 26, a carbon dioxide sensor 28, a humidity sensor 30, a temperature sensor 32, an entrance detection sensor 34, a seating detection sensor 36, and a defecation/urination detection sensor. 38, a toilet lid opening/closing device 40, a nozzle driving device 42, a nozzle cleaning device 44, a toilet cleaning device 46, a toilet sterilizing device 48, an aromatic spray device 50 which is an aromatic injection device, and deodorizing air. The feeder 52, the suction device 18, the sensor heating heater 54, the transceiver 56, and the duct cleaner 58 are connected. As will be described later, the hydrogen gas sensor and the odorous gas sensor can be integrated into a sensor.

  The temperature sensor 32 measures the temperature of a detection unit such as the odorous gas sensor 26. Further, the humidity sensor 30 measures the humidity of the gas sucked from the inside of the bowl 2a. The sensor sensitivity of these sensors changes slightly depending on the temperature of the detection unit. Also, changes in humidity due to urination and the like similarly affect the sensitivity of the sensor. In the present embodiment, since the amount of odorous gas is extremely small, the toilet bowl side is selected according to the temperature and humidity measured by these sensors 30 and 32 so that this minute amount of gas can be measured accurately and stably. The CPU 22a controls a sensor heating heater 54 and a humidity adjusting device 59 (FIG. 3) described later so that the sensor temperature and the suction humidity of the sensors 30 and 32 are accurately maintained within a predetermined range, and a predetermined temperature and humidity environment. Adjust to. It should be noted that these sensors and devices are not essential, and it is desirable to provide them for improving accuracy.

The entrance detection sensor 34 is, for example, an infrared sensor, and detects whether the subject enters or exits the toilet room R.
The seating detection sensor 36 is, for example, an infrared sensor or a pressure sensor, and detects whether or not the subject is seated on the toilet seat 4.
In the present embodiment, the defecation/urination detecting sensor 38 is composed of a microwave sensor, and whether the subject excreted is urine or stool, and whether the stool is floating in a sealed water. It is configured to detect the state of bowel movements such as whether or not the person is sinking and whether or not the stool has diarrhea. Alternatively, the defecation/urination detection sensor 38 can be configured by a CCD, a water level sensor that measures the transition of sealing water, or the like.

The toilet lid opening/closing device 40 is a device for opening/closing the toilet lid according to the situation based on a detection signal from the entrance detection sensor 34 or the like.
The nozzle drive device 42 is a device used for washing the buttocks, and is a device for washing the buttocks of the subject after defecation. The nozzle driving device 42 is configured to drive the nozzle to clean the flush toilet 2.
The nozzle cleaning device 44 is a device for cleaning the nozzle of the nozzle drive device 42. In the present embodiment, hypochlorous acid is generated from tap water, and the nozzle is cleaned with the generated hypochlorous acid. Is configured.

The toilet flushing device 46 is a device for discharging water or tap water stored in a flush water tank (not shown) into the toilet bowl to wash the inside of the bowl 2 a of the flush toilet 2. The toilet bowl cleaning device 46 is normally operated by the operation of the remote controller 8 by the subject to clean the inside of the bowl 2a, but as will be described later, it is automatically operated by the control device 22 depending on the situation.
The toilet sterilizer 48 is, for example, a device that generates sterilized water such as hypochlorous acid water from tap water, sprays the generated sterilized water on the bowl 2a of the flush toilet 2, and sterilizes the bowl 2a. Is.

The fragrance sprayer 50 is a device for spraying a predetermined fragrance into the toilet room R. This is provided to prevent the subject from spraying an arbitrary fragrance into the toilet room R and spraying an odorous component that may disturb the measurement. By including the fragrance sprayer 50, it is possible to spray a predetermined amount of a fragrance that does not affect a predetermined measurement at a predetermined time according to the situation, and to display that the fragrance has been sprayed. It can be recognized by the measurement system 1. As a result, the disturbance to the physical condition measurement is reduced and the analysis result is stabilized, so that the fragrance sprayer 50 functions as an output result stabilization means.
The suction device 18 includes a fan for sucking the gas in the bowl 2a of the flush toilet 2, and the sucked gas is deodorized by a deodorizing filter after flowing through a detection unit such as the odorous gas sensor 26. .. The detailed configuration of the suction device 18 will be described later.

The deodorizing air supply device 52 is a device that discharges the deodorized air sucked by the suction device 18 into the bowl 2a.
The sensor heating heater 54 is for heating and activating the detection unit such as the odorous gas sensor 26. Each sensor can accurately detect a predetermined gas component by maintaining the detection unit at a predetermined temperature.
The duct cleaner 58 is a device for cleaning the inside of the duct 18a attached to the suction device 18, for example, with hypochlorous acid or the like obtained by electrolyzing tap water.

  In the present embodiment shown in FIG. 1, the suction device 18, the deodorizing air supply device 52, and the duct cleaner 58 are integrally configured as a deodorizing device. That is, the gas in the bowl 2a is sucked into the duct 18a by the suction device 18, the sucked gas is deodorized by the deodorizing filter 78 (FIG. 3), and the deodorized gas is released into the bowl 2a again. As a result, a gas that reacts with the odorous gas sensor 26 flows from the outside into the bowl 2a, and the gas component in the bowl 2a is suppressed from changing due to factors other than the defecation gas discharged from the subject during the defecation period of the subject. To be done. Therefore, the deodorizing device provided with the deodorizing filter 78 and the deodorizing air supplier 52 function as an output result stabilizing means. Alternatively, as a modified example, a measurement gas supply device (not shown) that causes a gas that does not react with each gas sensor to flow into the bowl 2a is provided, and a measurement gas of the same amount as the gas sucked by the suction device 18 is provided. The present invention can also be configured to flow into the bowl 2a. In this case, the measurement gas supply device (not shown) functions as an output result stabilizing means for stabilizing the analysis result.

  Next, as shown in FIG. 2, a data analysis device 60 is built in the remote controller 8, and this data analysis device 60 includes a subject identification device 62, an input device 64, a transceiver 66, and a display device. 68 and the speaker 70 are connected. In the present embodiment, the transceiver 66, the display device 68, and the speaker 70 function as an output device that outputs the analysis result of the data analysis device 60. The data analysis device 60 includes a CPU, a storage device, a program for operating these, and the like, and a database is built in the storage device.

In the present embodiment, the input device 64 and the display device 68 are configured by a touch panel, accept various inputs such as subject identification information such as a subject name, and display various information such as a physical condition measurement result. It is supposed to be done.
The speaker 70 is configured to output various alarms, messages and the like issued by the biological information measuring system 1.
In the subject identifying device 62, subject identification information such as the subject's name is registered in advance. When the subject uses the biological information measuring system 1, the registered subject is displayed on the touch panel and the subject selects his/her name.

  Further, the transmitter/receiver 66 on the remote controller 8 side is communicatively connected to the server 12 via a network. The test subject terminal 14 is, for example, a smartphone, a tablet PC, or a device capable of displaying received data such as a PC.

The server 12 includes a defecation gas database. In the defecation gas database, measurement data including the amount of odorous gas and the amount of healthy system gas in each defecation behavior in association with the subject identification information of each subject using the biological information measurement system 1, and reliability data. And are recorded together with the measurement date and time. Further, the server 12 has a diagnostic table recorded therein and has a data analysis circuit.
Further, the server 12 is connected to a medical institution terminal 16 installed in a hospital, a health institution, or the like via a network. The medical institution terminal 16 is composed of, for example, a PC and can browse the data recorded in the database of the server 12.

Next, the configuration of the gas detection device 20 built in the toilet seat 4 will be described with reference to FIG.
First, in the biological information measuring system 1 of the present embodiment, a semiconductor gas sensor is used as a gas sensor in the gas detection device 20 in order to detect odorous gas and hydrogen gas. Further, a solid electrolyte type sensor is used for the gas detection device 20 in order to detect carbon dioxide.
The semiconductor gas sensor has a detection unit made of a metal oxide film containing tin oxide or the like. When the detection unit is heated to several hundred degrees and the heated detection unit is exposed to the reducing gas, an oxidation/reduction reaction occurs between oxygen adsorbed on the surface and the reducing gas. The semiconductor gas sensor can detect the reducing gas by electrically detecting a change in the resistance value of the detection unit due to the oxidation/reduction reaction. The reducing gas that can be detected by the semiconductor gas sensor includes hydrogen gas and odorous gas. In the present embodiment, the semiconductor gas sensor is used for both the sensor for detecting odorous gas and the sensor for detecting hydrogen gas, but the detection unit used in the odorous gas sensor strongly reacts to odorous gas. As described above, the material components of the detectors are adjusted so that the detectors used in the hydrogen gas sensor respond strongly to the hydrogen gas.

  As described above, in the present embodiment, the “semiconductor gas sensor” is used as the “odorous gas sensor”, but as described above, the “semiconductor gas sensor” is other than the methyl mercaptan gas to be detected. The general thing which reacts widely also to the odorous gas is used. Further, as will be described later, it is possible to use a solid electrolyte sensor as the "odorous gas sensor", but the solid electrolyte sensor also reacts widely with other odorous gases other than methyl mercaptan gas, like the semiconductor gas sensor. You can use the common ones. In other words, a gas sensor that reacts only to methyl mercaptan gas is extremely difficult to manufacture, and even if it can be manufactured, it becomes an extremely large and expensive gas sensor. If such a large and expensive gas sensor is adopted, even if it is feasible as a medical device used in advanced clinical tests, a biometric information measurement system will be manufactured at a cost that can be sold as a consumer product. Things will be impossible. In the biological information measuring system of the present embodiment, other than the methyl mercaptan gas that is the detection target, a simple general-purpose gas sensor that reacts with other odorous gas is adopted as the "odorous gas sensor". , Has made it possible to realize a biological information measurement system as a consumer product. As described above, the gas sensor employed in the present embodiment is a sensor that reacts with odorous gases other than methyl mercaptan gas and methyl mercaptan gas, but in the present specification, for convenience, We call it "odorous gas sensor". Methyl mercaptan gas, hydrogen sulfide gas, ammonia gas, and alcohol-based gas are typical examples of the odorous gas with which the “odorous gas sensor” employed in the present embodiment reacts.

  In addition, the "odorous gas sensor" used in the biological information measuring system 1 of the present embodiment is a sensor that reacts not only with the target methyl mercaptan gas but also with other odorous gases, which will be described later. Even if such a gas sensor is used, it is necessary as a consumer product and can be measured with sufficient accuracy by various measures. Specifically, in a toilet room, where various odorous gases are present, a device for maintaining a measurement environment, and data regarding defecation gas is extracted from the detection signal of the gas sensor, assuming the defecation behavior of the subject. Examples of such measures include data processing, and even if detection data with a large error is obtained, it does not impose an excessive psychological burden on the subject. Details of each device will be described later.

  In addition, in the present embodiment, a case where a semiconductor gas sensor is used as a sensor for detecting odorous gas and hydrogen gas will be described, but instead of this, a solid electrolyte sensor can be used. The solid electrolyte sensor is, for example, a sensor in which a solid electrolyte such as stable zirconia is heated and a gas is detected based on the amount of ions permeated through the solid electrolyte. Gases that can be detected by the solid electrolyte sensor include hydrogen gas and odorous gas. Further, in the present embodiment, a solid electrolyte sensor is used as a sensor for detecting carbon dioxide. The carbon dioxide sensor is not limited to these and may be an infrared type or the like. The sensor for detecting carbon dioxide can be omitted.

As shown in FIG. 3, in the present embodiment, the gas detection device 20 is arranged inside the suction device 18.
The suction device 18 is composed of a duct 18a directed downward, an intake passage 18b directed substantially horizontally, and a suction fan 18c arranged downstream of the intake passage 18b. A duct cleaner 58 and a humidity adjusting device 59 are provided inside the duct 18a.
The gas detection device 20 is composed of a filter 72 arranged inside the intake passage 18b, an odorous gas sensor 26, a hydrogen gas sensor 24, and a carbon dioxide sensor 28. As shown in FIG. 3, the filter 72 is arranged so as to cross the intake passage 18b, and the odorous gas sensor 26, the hydrogen gas sensor 24, and the carbon dioxide sensor 28 are juxtaposed on the downstream side of the filter 72.

Further, a deodorizing filter 78 is provided on the downstream side of the odorous gas sensor 26, and by deodorizing the gas sucked by the deodorizing filter 78, the suction device 18 also functions as a deodorizing device.
A humidity adjusting device 59 is provided downstream of the deodorizing filter 78. The humidity adjusting device 59 contains a hygroscopic agent, and when it is necessary to reduce the humidity in the bowl 2a, the air that has passed through the deodorizing filter 78 passes through the enclosed hygroscopic agent. The flow path is switched to, and moisture is removed from the air circulating in the bowl 2a. Thereby, the humidity in the bowl 2a is maintained at an appropriate value, and the detection sensitivity of each gas sensor is maintained substantially constant. Therefore, the humidity adjusting device 59 functions as an output result stabilizing unit that suppresses a humidity change in the bowl 2a.

  The suction fan 18c sucks off the offensive odor gas including the odorous gas in the bowl 2a of the flush toilet 2 at a constant speed, deodorizes it and returns it to the bowl 2a. The duct 18a for deodorization is opened in the bowl 2a with its suction port facing downward so that splashes such as urine do not enter inside. Odorous gases such as methyl mercaptan and hydrogen gas have small molecular weights, so they rise immediately after defecation. On the other hand, in the present embodiment, the discharged odorous gas and hydrogen gas are reliably introduced into the gas detection device 20 by sucking the suction fan 18c from the inlet of the duct 18a opened in the bowl 2a. be able to. As described above, the suction device 18 is operated before the subject starts defecation, and brings the gas at a constant flow rate into contact with each gas sensor during the defecation period of the subject. Thereby, a stable measurement value can be obtained. Therefore, the suction device 18 and the control device 22 that operates the suction device 18 function as output result stabilizing means.

  The filter 72 is a filter that does not have a deodorizing function, and is configured to pass odorous gas, hydrogen, and carbon dioxide, and prevent passage of foreign substances such as urine and cleaning agents. As such a filter 72, a member that mechanically collects foreign matter without using a chemical reaction, for example, a fine net-shaped member can be used. This can prevent the odorous gas sensor 26, the hydrogen gas sensor 24, and the carbon dioxide sensor 28 from being contaminated with urine stones or the like.

  Further, a sensor heating heater 54 is provided upstream of each gas sensor and downstream of the filter 72 for each gas sensor. As described above, the odorous gas sensor 26 and the hydrogen gas sensor 24, which are semiconductor gas sensors, can detect hydrogen and odorous gas in a state where the detection unit is heated to a predetermined temperature. The sensor heating heater 54 is provided to heat the detecting portions of the odorous gas sensor 26 and the hydrogen gas sensor 24. Further, the carbon dioxide sensor 28 also needs to heat the solid electrolyte to a predetermined temperature, and a sensor heating heater 54 is provided. These sensor heating heaters 54 also function as an offensive odor removing device for heating and removing offensive odor gas components adhering to the sensors. In addition, even when the solid electrolyte sensor is used as the odorous gas sensor and the hydrogen gas sensor, it is necessary to provide a sensor heating heater for heating the detection unit.

  Further, the sensor heating heater 54 also functions as a means for removing deposits attached to each sensor. The gas that has passed through the filter 72 is free of foreign matter, but the sucked gas contains various offensive odor gas components. Such an offensive odor gas component adheres to each gas sensor and may cause noise when measuring a small amount of odorous gas. On the other hand, by heating the detecting portion of the sensor with the sensor heating heater 54, it is possible to heat and remove the offensive odor gas attached to the sensor without providing a new device. Further, the control device 22 controls the sensor heating heater 54 so that the temperature of each gas sensor is constant before the defecation behavior of the subject is started. That is, the control device 22 controls the sensor heating heater 54 so as to suppress the temperature of each gas sensor from decreasing due to the contact of the air flow. Thereby, the sensitivity of each gas sensor is controlled to a predetermined value during the defecation period of the subject, and the measurement error by each gas sensor can be suppressed. Therefore, the control device 22 and the sensor heating heater 54 function as output result stabilizing means for stabilizing the output analysis result.

  The deodorizing filter 78 is a catalyst filter that adsorbs offensive odor gas such as odorous gas. The air from which the gas such as the odorous gas is removed by the deodorizing filter 78 is returned to the bowl 2a. At this time, if the gas recirculated into the bowl 2a contains an odorous gas or the like, the odorous gas or the like flowing into the bowl 2a is again sucked from the duct 18a, and the odorous gas sensor 26 detects it again. There is a risk that Therefore, in the present embodiment, the deodorizing filter 78 is arranged on the downstream side of the odorous gas sensor 26 to reliably remove odorous components such as odorous gas from the gas returned into the bowl 2a.

  When the subject sits on the toilet seat 4, the upper part of the bowl 2a is closed by underwear or the like. If the inside of the bowl 2a becomes a negative pressure, the offensive odor gas component adhering to the subject's body, clothes, etc. will be sucked into the bowl 2a. In the biological information measuring system 1 of the present embodiment, the odorous gas sensor 26 is set to have an extremely high sensitivity because it detects odorous gas that is contained in the defecation gas only in a very small amount. Even a component of off-flavor gas adhering to etc. becomes a disturbance to the measurement. On the other hand, in the present embodiment, since the gas after deodorization is returned to the bowl 2a, the inside of the bowl 2a does not become a negative pressure, and the offensive odor gas component adhered to the body of the subject, clothes, etc. Can be prevented from being drawn into the bowl 2a.

  Here, the semiconductor gas sensor used as the odorous gas sensor 26 detects not only odorous gas but also hydrogen. Therefore, it is necessary to separate the influence of hydrogen gas from the detection data detected by the semiconductor gas sensor. In the present embodiment, as the hydrogen separation mechanism for separating the influence of such hydrogen gas, the hydrogen gas sensor 24 detects from the detection value of the odorous gas detected by the semiconductor gas sensor in the gas detection device 20. By subtracting the detection value of hydrogen gas, the influence of hydrogen gas is separated and output as the detection value of the odorous gas sensor 26. A configuration including the hydrogen separation mechanism, the semiconductor gas sensor, and the hydrogen gas sensor 24 and outputting the detection value according to the odorous gas amount and the hydrogen gas amount is called a detection value output mechanism. The arithmetic processing for subtracting the detection value of hydrogen gas detected by the hydrogen gas sensor 24 from the detection value of odorous gas detected by the semiconductor gas sensor may be performed in the data analysis device 60 or the like. Further, in the present embodiment, the hydrogen separation mechanism for separating the influence of hydrogen gas from the detection data detected by the semiconductor gas sensor will be described. However, by providing a methane sensor for detecting methane, the detection data detected by the semiconductor gas sensor It is also possible to separate the effects of methane from. As the methane gas sensor, a semiconductor gas sensor in which the material component of the detection unit is adjusted to strongly react with methane may be used.

  Many people do not have methanogenic bacteria that produce methane in the intestines, or the amount of methanogenic bacteria is very small even if they exist. Few. Therefore, in the present embodiment, the hydrogen sensor 24 and the carbon dioxide sensor 26 are provided as the health system gas sensor. However, on rare occasions, there are people with very high levels of intestinal methanogens. As described above, the defecation gas of a person having a large amount of methanogenic bacteria in the intestine has a large amount of methane, but a small amount of hydrogen. For this reason, when only the hydrogen sensor 24 and the carbon dioxide sensor 26 are provided, it is determined that the amount of excretion of healthy gas is small for the defecation gas of a person having a large amount of methanogenic bacteria in the intestine, which is not preferable. In the present embodiment, the hydrogen sensor 24 and the carbon dioxide sensor 26 are provided as health system gas sensors in order to accommodate many people, but a methane gas sensor is provided in place of the hydrogen sensor 24 for people with a large amount of methane gas. May be. Furthermore, by providing a methane gas sensor in addition to the hydrogen sensor 24 and the carbon dioxide sensor 26 in advance, any subject can be dealt with, which is more preferable.

As described above, the defecation gas contains a large amount of hydrogen, but the semiconductor gas sensor detects not only odorous gas but also hydrogen. On the other hand, by subtracting the hydrogen gas amount detected by the hydrogen gas sensor 24 from the gas amount detected by the odorous gas sensor 26, which is a semiconductor gas sensor, the influence of hydrogen can be accurately separated. The amount of odorous gas can be measured.
Further, the hydrogen gas contained in the defecation gas has a molecular weight much smaller than that of air, and easily escapes from the bowl 2a. On the other hand, in the present embodiment, since the defecation gas is sucked by the fan 18c of the suction device 18, it is possible to reliably collect the defecation gas containing hydrogen gas.

  Further, if the sucked defecation gas is returned to the bowl 2a as it is, the accuracy of measurement by the odorous gas sensor 26 deteriorates. On the other hand, in the present embodiment, since the sucked defecation gas is deodorized by the deodorizing filter 78 and returned to the inside of the bowl, the amount of odorous gas and the amount of hydrogen can be accurately measured. Further, such a deodorizing filter 78 needs to be arranged on the downstream side of each sensor. However, if such a deodorizing filter 78 is provided on the downstream side of each sensor, the sensor may be directly contaminated by foreign matter. .. On the other hand, in the present embodiment, since the filter 72 having no deodorizing function is provided on the upstream side of the sensor, contamination of the sensor by foreign matter can be reduced without affecting the measurement of odor components.

  Further, when the gas in the bowl 2a is sucked, the pressure in the bowl 2a is lowered, and the offensive odor gas component attached to the body or clothes of the subject may flow into the bowl 2a. On the other hand, in the present embodiment, the air from which the odorous components after deodorization have been removed is returned to the inside of the bowl 2a, so that the offensive odorous gas components adhering to the body and clothes of the subject are prevented from flowing into the bowl 2a. , Accurate measurement became possible.

  However, it is not essential to return the air from which the odorous components after deodorization have been removed into the bowl 2a. If the configuration in which the air from which the odorous components after deodorization are removed is returned to the bowl 2a is not adopted, the offensive odorous gas components adhering to the subject's body or clothes may flow into the bowl 2a. However, as will be described later with reference to FIG. 9, when setting the reference value of the residual gas, the influence of the offensive odor gas component adhering to the body and clothes of the subject is included, and the reference value of the residual gas is set. The value is set. Therefore, it is possible to estimate the gas amount without returning the air from which the odorous components after deodorization have been removed to the inside of the bowl 2a.

Next, a flow of measuring a physical condition by the biological information measuring system 1 according to the first embodiment of the present invention will be described with reference to FIGS. 4 and 5.
FIG. 4 is a diagram for explaining the flow of physical condition measurement. The upper part shows each process in the physical condition measurement, and the lower part shows an example of a screen displayed on the display device of the remote controller in each process. FIG. 5 is a diagram showing an example of a screen displayed on the display device of the remote controller.

  In the biological information measuring system 1 of the present embodiment, the physical condition including the determination of cancer is analyzed based on the correlation between the odorous gas in the defecation gas released by the subject during defecation and the healthy gas. Here, it is preferable that each subject-side device displays the analysis result during the defecation period or within a short time until the user exits after one defecation period ends. However, if the analysis is performed in a short time, the analysis accuracy may be lowered. In addition, it is difficult to suck all of the defecation gas discharged by the subject by the suction device 18, and these become a disturbance in a very unsanitary state in the toilet bowl or the toilet or in a measurement environment where the fragrance is strong. May affect the measurement accuracy and reduce the measurement accuracy. For this reason, in each subject-side device, when transmitting the physical condition including the presence or absence of a disease to the subject, considering the psychological burden of the subject, the time-dependent results obtained by performing measurements during a number of defecation behaviors over a long period of time are shown. Based on this, instead of strongly transmitting only the absolute amount of odorous gas that is highly associated with cancer, changes in the physical condition of the subject, that is, changes in the intestinal state are strongly transmitted. Further, in consideration of the measurement error at the time of each defecation behavior, in the present embodiment, based on the measurement result at the time of one defecation behavior, the subject is notified so that the physical condition is not significantly changed so that the subject is not significantly changed. I am trying to be notified. This utilizes the characteristic that a disease called cancer is a disease that progresses over a long period of time, and a large change in the amount of odorous gas that is strongly associated with cancer in a short period of time is related to cancer. This is because it is not strong but largely due to the result of a bad lifestyle or the influence of noise, and a large change in physical condition causes unnecessary psychological anxiety to the subject.

  In view of the above points, in the present embodiment, first, in the subject-side device 10, based on the measurement result of the first defecation gas in one defecation action, that is, the defecation gas emitted during the first defecation act. , Performs a simple health condition analysis and displays the health condition analysis result. On the other hand, in the server 12, more detailed analysis is possible by comparing with other subjects based on the total amount of gas discharged during one bowel movement. Therefore, in the biological information measuring system 1 of the present embodiment, a simple analysis is performed in the subject side device 10 installed in the toilet room R, and a more detailed analysis is performed in the server 12.

  As shown in FIG. 4, in the measurement at the time of one defecation behavior by the biological information measuring system 1 of the present embodiment, a pre-measurement environment maintenance step S1, a measurement start preparation step S2, and a measurement reference value setting step S3 are performed. The measurement step S4, the examination step S5, the communication step S6, and the post-measurement environment maintenance step S7 are executed.

The pre-measurement environment maintenance step S1 is a step performed before the subject enters the toilet room R. Whether or not the subject has entered the toilet room R is detected by the entrance detection sensor 34 (FIG. 2).
In the pre-measurement environment maintenance step S1, the control device 22 on the toilet seat side controls the sensor heating heater 54, the suction device 18, and the toilet lid opening/closing device 40 by changing them to a measurement standby mode. In the measurement standby mode, the sensor heating heater 54 sets the temperature of the detection unit of the odorous gas sensor 26 to a temperature lower than the temperature at which measurement is performed (for example, 200° C.) based on the temperature measured by the temperature sensor 32. Controlled to be. In the measurement standby mode, the suction device 18 is controlled so that the suction air volume is minimized. In the measurement standby mode, the toilet lid opening/closing device 40 is controlled so that the toilet lid is closed.

  Further, in the pre-measurement environment maintenance step S1, the detection unit of the odorous gas sensor 26 is lower than the optimum temperature because the sensor heating heater 54 is in the measurement standby mode, but the gas concentration of the odorous gas is measured. Is possible. When there is a source of offensive odor gas in the bowl 2a, such as an attached stool in the flush toilet 2, the gas concentration measured by the odorous gas sensor 26 becomes a predetermined value or more. In the pre-measurement environment maintenance step S1, the control device 22 executes the toilet cleaning when the value of the gas concentration measured by the odorous gas sensor 26 exceeds a predetermined value. Specifically, the control device 22 discharges the cleaning water from the nozzle by the nozzle driving device 42 to clean the bowl 2a, and discharges the water stored in the cleaning water tank by the toilet cleaning device 46 into the bowl 2a. To clean the inside of the bowl 2a, or to generate sterilized water such as hypochlorous acid water from tap water by the toilet sterilizer 48, and spray the generated sterilized water on the bowl 2a to sterilize the bowl 2a. To do.

  Further, when the gas concentration measured by the odorous gas sensor 26 is equal to or higher than a predetermined value, the control device 22 operates the suction device 18 to discharge the gas in the bowl 2a to reduce the gas concentration. The gas sucked by the suction device 18 is deodorized by the deodorization filter 78, and thus the suction device 18 and the deodorization filter 78 function as a deodorization device. Further, by sucking the gas with the suction device 18 with the toilet lid opened, not only the bowl 2a but also the toilet room R can be deodorized. Therefore, the suction device 18 and the deodorizing filter 78 are provided in the toilet room. It can also function as a deodorizing device. Preferably, when the suction device 18 and the deodorization filter 78 function as a deodorization device, the suction amount of gas by the suction device 18 is made larger than when the physical condition is measured during the defecation period of the subject.

  Alternatively, the ventilation device (not shown) provided in the toilet room R may be configured to be controlled by the control device 22, and the gas concentration may be reduced by operating the ventilation device. In this way, the concentration of the odorous gas remaining in the bowl 2a is reduced, and the influence of residual gas noise caused by the remaining gas is reduced. Therefore, the cleaning or sterilization of the bowl 2a by the nozzle drive device 42, the toilet cleaning device 46 or the toilet disinfection device 48, which is executed in the pre-measurement environment maintenance step S1, and the exhaust/deodorization in the bowl 2a or the toilet room R, It functions as noise response means for reducing the effect of residual gas noise and residual gas removal means for reducing the concentration of residual odorous gas. In addition, the noise coping means executed when the subject is not in the toilet room R during the period other than the defecation period of the test subject functions as the first noise coping means and the residual gas removing means.

  Further, in the pre-measurement environment maintenance step S1, if the amount of gas measured by the odorous gas sensor 26 does not become less than the predetermined value even after performing the above-described toilet cleaning, the control device 22 causes the transceiver 56 to perform a cleaning warning. Send a command signal. When the transceiver 66 on the remote controller 8 side receives the cleaning warning command signal, the display device 68 or the speaker 70 notifies the subject to wash the toilet.

  Further, in the pre-measurement environment maintenance step S1, the control device 22 regularly performs suction environment cleaning. Specifically, the control device 22 drives the duct cleaner 58 to spray cleaning water into the duct 18a of the suction device 18 to clean the duct 18a and the like. Furthermore, the sensor heating heater 54 heats the hydrogen gas sensor 24, the odorous gas sensor 26, and the carbon dioxide sensor 28 to a high temperature, and burns off the offensive odor gas components adhering to the surfaces of these gas sensors 24, 26, 28.

  Next, when the entrance of the subject is detected by the entrance detection sensor 34, the control device 22 transmits a signal to the effect that the measurement start preparation step S2 is started to the transceiver 66 on the remote controller 8 side via the transceiver 56. The measurement start preparation step S2 is performed in synchronization with the remote controller side.

  In the measurement start preparation step S2, first, the subject identifying device 62 incorporated in the remote controller 8 identifies a subject. Specifically, the resident of the house in which the system is installed is registered in the biological information measuring system 1, and the registered resident is displayed as a candidate for the subject. That is, as shown in FIG. 5, “subject A”, “subject B”, “subject C”. ． The button of the candidate is displayed as, and the subject who has entered the toilet room R presses the button corresponding to himself to identify the subject. Further, the data analysis device 60 built in the remote controller 8 refers to the storage device and stores the past measurement data of the personal identification information received by the subject identifying device 62 and a physical condition display table as reference data serving as a reference for analysis. get.

  Further, in the measurement start preparation step S2, the data analysis device 60 displays the previous defecation such as "Did you defecate at another place last time?" on the second stage of the display device as shown in FIG. Questions about whether or not this was done in the toilet where this device is installed, and the answer options "Yes (this morning)", "Yes (yesterday afternoon)", "Yes (yes yesterday morning)", "one day before yesterday", Displays "No". When the subject answers this question, the defecation history information of the subject is input to the input device 64 of the data analysis device 60. Such defecation history information regarding the elapsed time from the previous defecation behavior of the subject is stored in the storage device (subject information storage device) built in the remote controller 8, and the subject information registered in the subject information storage device in advance. Subject information regarding the weight, age, sex, etc. of the person is also stored. Further, the defecation history information is transmitted to the server 12 and recorded in the database of the server 12.

  In the measurement start preparation step S2, the toilet-side controller 22 controls the sensor heating heater 54, the suction device 18, and the toilet lid opening/closing device 40 to the measurement mode. In the measurement mode, the sensor heating heater 54 adjusts the temperature of the detection unit of the odorous gas sensor 26 to the first temperature (eg, 400° C.) suitable for measurement based on the temperature measured by the temperature sensor 32. Controlled. That is, the temperature of the detection unit of the odorous gas sensor 26 is maintained at the second temperature (for example, 200° C.) lower than the first temperature in the standby state before the subject enters the room, but the subject enters the room. When the is detected, the control device 22 raises the temperature of the detection unit to the first temperature before the subject sits on the toilet seat 4. Further, in the measurement mode, the suction device 18 increases the suction air volume to an air volume at which the defecation gas does not leak from the bowl 2a to the outside, and is controlled to be constant so as not to vary from such air volume. Further, the toilet lid opening/closing device 40 is controlled to open the toilet lid in the measurement mode.

Further, in the measurement start preparation step S2, when the odorous gas concentration detected by the odorous gas sensor 26 is high, the control device 22 causes the toilet sterilizing device 48 to sterilize the inside of the bowl 2a.
In the measurement start preparation step S2, when the humidity measured by the humidity sensor 30 is not suitable for the measurement of defecation gas by the odorous gas sensor 26, the control device 22 sends a signal to the humidity adjusting device 59. To control the humidity in the bowl to an appropriate value.

  Further, in the measurement start preparation step, when the seat using the alcohol-based disinfectant or the toilet seat 4 is cleaned by spraying, the odorous gas sensor 26 reacts with alcohol, and the gas concentration value increases rapidly. In this way, when the gas concentration measured by the odorous gas sensor 26 suddenly increases, the data analysis device 60 displays a warning on the display device 68.

  In addition, the data analysis device 60 stores the measurement value obtained by the odorous gas sensor 26 as an environmental reference value that is a noise level that serves as a base for defecation gas measurement. Based on this environmental standard value, the data analysis device 60 determines whether or not the measurement is possible. When the data analysis device 60 is measuring the noise level and determines that the measurement is not possible, the display device 68 causes the display device 68 to display “Preparing for measurement! Wait a moment, if possible”. A display prompting the subject to wait for defecation is presented.

Next, when the seating detection sensor 36 detects that the subject is seated, the control device 22 transmits a signal to the effect that the measurement reference value setting step S3 is started to the data analysis device 60 via the transceiver 56. The measurement reference value setting step S3 is performed in synchronization with the data analysis device 60. When the seating detection sensor 36 repeats detection and non-detection a predetermined number of times, it is an influence of the cleaning of the toilet seat by the subject. Therefore, in such a case, it is desirable to return to S1.
In the measurement reference value setting step S3, the data analysis device 60 performs the subject attached offensive odor noise determination that is the determination of the noise level caused by the subject based on the measurement value measured by the odorous gas sensor 26. That is, when the measurement value measured by the odorous gas sensor 26 is sufficiently lowered and is not stable, it is determined that the disinfection may have been performed by the alcohol disinfectant or the like, and FIG. Continue to display "Preparing for measurement! Please wait for a while." Alternatively, when the noise level caused by the subject is equal to or higher than a predetermined value, the data analysis device 60 sends a signal to the nozzle drive device 42, which is a local washing device, to activate the signal, thereby performing the ashes washing of the subject. Alternatively, the data analysis device 60 notifies the subject by the display device 68 that the subject should perform the ashes washing. As described above, the execution of the ashes washing by the data analysis device 60, the notification for prompting it, and the notification that the noise is large to the subject are handled by the second noise corresponding to reduce the subject noise by a different measure from the first noise handling means. Functions as a means. The above-described first noise countermeasure means is executed when the subject is not in the toilet room R, while the second noise countermeasure means is executed when the subject is in the toilet room R. It On the other hand, when the measurement value measured by the odorous gas sensor 26 is sufficiently lowered, this display is erased. In addition, when the measured value measured by the odorous gas sensor 26 does not sufficiently decrease even after a lapse of a predetermined time, the data analysis device 60 stops the measurement of the physical condition and displays the fact on the display device 68 to display the subject. To inform. In this way, the data analyzer 60 suspends the measurement of the physical condition of the subject when it determines that the gas component in the bowl 2a before the defecation period of the subject is not suitable for the measurement, and thus serves as an output result stabilizing means. Function.

Further, in the measurement reference value setting step S3, the data analysis device 60 sets a reference value for gas amount estimation based on the gas concentration measured by the odorous gas sensor 26, as will be described later in detail.
Next, as described in detail later, the data analysis device 60 causes the test subject to excrete when the detection data by the odorous gas sensor 26 rises from the reference value of odorous noise at a positive change rate of a predetermined value or more. It is determined that the measurement has been performed, and the measurement process S4 starts. As described above, the data analysis device 60 performs the measurement step S4 from when it is determined that the subject has excreted, until the sitting detection sensor 36 detects that the subject has left the seat.

  That is, the subject closes the door of the toilet room and approaches the flush toilet 2 until the subject's sitting is detected by the sitting detection sensor 36 after the subject's entry is detected by the entry detecting sensor 34. It is presumed that the feces are being prepared for defecation, such as opening the lid and turning back to the flush toilet 2 and then undressing. Therefore, in the present embodiment, the period until the subject enters the toilet room and sits on the toilet seat 4 is referred to as the "feces defecation preparation period", and the period after the subject sits down and leaves the seat is "the defecation period". I am trying. Therefore, the seating detection sensor 36 directly detects whether it is the defecation period after the subject sits on the toilet seat or the defecation preparation period in which defecation is prepared before sitting on the toilet seat. It functions as a "sensor". Furthermore, the entry detection sensor 34 that detects the entry of the subject into the room functions as a toilet closet preparation determination means for determining whether or not the "feces preparation period" has started from the standby state.

  In this embodiment, the toilet seat 4 has a built-in local cleaning device (nozzle drive device 42), and the sensor for detecting seating provided in the local cleaning device is also used as the seating detection sensor 36. ing. That is, the local cleaning device is equipped with a sensor for determining whether or not it is possible to inject the cleaning water for local cleaning for cleaning the buttocks, and the user (subject) is seated on the sensor. The cleaning water for local cleaning is sprayed only in the state. In the biological information measuring system 1 according to the embodiment of the present invention, a switch (sensor) for detecting seating provided in the local cleaning apparatus is also used as the seating detection sensor 36 (defecation behavior determination sensor). In addition, it is clear from the investigation by the inventor of the present invention that the time required for the average subject to start defecation after the subject enters the toilet room is about 10 seconds. However, since this time varies greatly depending on the age, health condition, lifestyle, and clothing condition of the subject, it is estimated based on the elapsed time after entering the room whether or not the “defecation preparation period” has transitioned to the “defecation period”. It is difficult to do so, and it is preferable to directly detect with a sensor. As the defecation action determination sensor for detecting the shift to the "fecal period", not only the seating detection sensor 36, but also a load sensor for detecting the load on which the subject sits, a microwave sensor for detecting the approach of the subject, and infrared rays. Various sensors such as a sensor and an image sensor can be used.

  In addition, in the present embodiment, the start of the “feces defecation preparation period” is determined based on the entry detection sensor 34. However, when the present invention is applied to a portable flush toilet installed in a bedroom or the like, the subject will be in the space where the flush toilet is installed before starting preparations for defecation, and the entrance Therefore, it is not possible to judge the start of the "fecal defecation preparation period". In such a case, a dedicated switch for approaching the subject to the flush toilet 2, opening the toilet lid of the flush toilet 2, inputting to the subject identifying device 62, and inputting that preparation for defecation has started It is possible to determine the start of the "fecal defecation preparation period" by the above, and these can also function as a toilet bowl use preparation determination means.

In the measurement step S4, the control device 22 controls the hydrogen gas sensor 24, the odorous gas sensor 26, the carbon dioxide sensor 28, the humidity sensor 30, the temperature sensor 32, the entrance detection sensor 34, the seating detection sensor 36, and defecation/urination. The detection data measured by the detection sensor 38 is stored in the storage device for each subject identified by the subject identifying device 62. The control device 22 transmits these measurement values stored in the storage device to the data analysis device 60 via the transceiver 56 after the measurement step S4 is completed. In the present embodiment, the measurement value is transmitted from the control device 22 to the data analysis device 60 after the measurement step S4 is finished, but the present invention is not limited to this, and may be transmitted in real time in parallel with the measurement.
Further, the control device 22 starts the measurement of defecation gas even in a state in which the subject has not input information for identifying the subject to the subject identifying device 62. The detection data detected before the information is input is stored in the storage device in association with the input subject information when the subject subsequently inputs the subject information during one bowel movement. This is a practical device that matches the characteristics of defecation so that various types of input can be input after the user has calmed down without having to input various items in the face of defecation. Further, if the subject does not input the subject information even after a lapse of a predetermined time after the start of measurement, a message prompting the subject to input is output from the display device 68 and the speaker 70 to notify the subject. This can prevent the subject from forgetting to input.

  At the same time, similarly to the measurement reference value setting step S3, the data analysis device 60 determines whether measurement is possible. When the data analysis device 60 determines that the measurement is possible, the data analysis device 60 causes the display device 68 to display “Medical examiner: Taro Tou (subject identification information)”, “Measurement” as shown in the lower part of FIG. A message indicating that the measurement is being performed is presented to the subject, such as “OK!

Next, when the sitting detection sensor 36 detects that the subject has left the seat, the control device 22 transmits a signal to the effect that the examination step S5 is started to the data analysis device 60 via the transceiver 56. Upon receiving this signal, the data analysis device 60 starts the medical examination step S5.
The data analysis device 60 first calculates the measurement reliability, which will be described in detail later, based on the measurement value measured by each sensor.
On the other hand, when the information for identifying the subject is not input even after the subject leaves the seat, the control device 22 prohibits washing of the flush toilet 2. That is, when the subject identification information is not input, even if the subject operates a washing button (not shown) of the remote controller 8, the control device 22 does not discharge the washing water of the flush toilet 2 and prompts the input. Is displayed. Thereby, the subject can be strongly urged to input the subject identification information.

Further, the data analysis device 60 estimates the gas amounts of the odorous gas and the hydrogen gas (healthy gas), as will be described later in detail.
Further, in the examination step S5, the data analysis device 60 analyzes the physical condition of the subject based on changes over time of the plurality of detection data detected in a plurality of defecations performed within a predetermined period and stored in the storage device. The medical examination result calculation is performed, and the temporal diagnosis based on the stored value is performed. Then, the advice content based on the elapsed diagnosis is selected. As shown in the third row of FIG. 5, the data analysis device 60 displays the selected advice content on the display device 68 as a message regarding health management. In the example shown in FIG. 5, as a result of the medical examination, the subject's current physical condition corresponds to “physical condition”, and as an advice, “The intestinal environment seems to be bad. Try to live a healthy life.” It is displayed.

  Further, under the checkup result, the amount of healthy gas such as hydrogen gas and carbon dioxide gas and the amount of unhealthy gas such as odorous gas in this measurement are displayed. The results of the past four measurements are also displayed below the advice. Furthermore, when the subject presses the "detailed screen" button on the display screen, a table showing the physical condition changes of the subject in the past month is displayed. This display will be described later. As described above, the analysis result displayed on the display device 68 of the remote controller 8 includes only the physical condition, the advice, and the physical condition change (history of measurement data). It does not include notification of disease outcomes. Note that these analysis results may be notified to the subject terminal 14.

  Further, as shown in the bottom of FIG. 5, the reliability of the measurement data of this time is displayed at the bottom of the display device 68. In the example shown in FIG. 5, “4” is displayed, which has a relatively high degree of reliability. Further, when the reliability is low, the reason why the reliability is lowered and advice for improving it are displayed below the display of the reliability. For example, when the residual gas noise caused by the gas remaining in the bowl or the subject noise caused by the subject is large, the reliability is lowered and the subject is notified that the noise influences the measurement result. .. Therefore, the display of the reliability by the display device 68 functions as a noise countermeasure means. The calculation of the reliability will be described later.

Next, when the control device 22 detects that the subject has left the room by the entrance detection sensor 34, the control device 22 transmits a signal for data transmission to the data analysis device 60 via the transceiver 56. Upon receiving this signal, the data analysis device 60 performs the communication step S6.
In the communication step S6, the data analysis device 60 acquires the information for identifying the subject identified by the subject identification device 62, the data measured by various sensors, the calculated reliability, the measurement date/time information, and the defecation/urination detection sensor 38. The notification data including the stool status information regarding at least one of the stool volume and the stool status, and the defecation history information are transmitted to the server 12 via the network. The server 12 records the received information in a database.

In addition, the control device 22 performs the post-measurement environment maintenance step S7 after the subject leaves the room by the entrance detection sensor 34.
The control device 22 measures the gas concentration by the odorous gas sensor 26 in the post-measurement environment maintenance step S7. Then, if the gas concentration measured by the odorous gas sensor 26 is higher than a predetermined value even after a lapse of a predetermined time after the end of the defecation period, the control device 22 adheres to the bowl 2a of the flush toilet 2 with stool. The toilet bowl cleaning device 46 discharges the cleaning water stored in the cleaning water tank into the bowl 2a to clean the inside of the bowl 2a, or the toilet sterilizing device 48 cleans the tap water from hypochlorous acid. Sterilized water such as acid water is generated, and the generated sterilized water is sprayed on the bowl 2a to sterilize the bowl 2a.

  The additional toilet cleaning by the toilet cleaning device 46 and the sterilization of the bowl 2a by the toilet disinfection device 48 function as residual gas removing means for reducing the concentration of the residual odorous gas. Preferably, the toilet bowl cleaning automatically performed by the residual gas removing means has a higher cleaning power than the ordinary toilet bowl cleaning performed by the subject operating the cleaning switch (not shown) of the remote controller 8. I'll do it. Specifically, in the toilet cleaning performed by the residual gas removing means, it is preferable to set a large number of times the cleaning water is discharged to the bowl 2a or set a high flow rate of the cleaning water. Further, the sterilization of the bowl 2a performed by the residual gas removing means is performed by setting the sterilization power to be stronger than that of a normal bowl sterilization performed by the subject operating a sterilization switch (not shown) of the remote controller 8. deep. Specifically, in the sterilization of the bowl executed by the residual gas removing means, sterilizing water having a higher concentration than normal sterilization is sprayed or a large amount of sterilizing water is sprayed.

Further, the residual gas removing means determines that the duct 18a is contaminated if the gas concentration measured by the odorous gas sensor 26 is higher than a predetermined value even after a lapse of a predetermined time after the end of the defecation period. The duct cleaner 58 is operated. The duct cleaner 58 cleans the inside of the duct 18a attached to the suction device 18 with hypochlorous acid or the like obtained by electrolyzing tap water.
Further, the residual gas removing means does not sufficiently lower the gas concentration measured by the odorous gas sensor 26 even if the above cleaning and sterilization processes are performed, and when the gas concentration is larger than a predetermined value, a flush toilet bowl. The message prompting the cleaning of No. 2 is displayed on the display device 68.

  Then, in the post-measurement environment maintenance step S7, the control device 22 changes the sensor heating heater 54, the suction device 18, and the toilet lid opening/closing device 40 to the measurement standby mode, and ends one measurement.

Next, the physical condition display table will be described with reference to FIG. This physical condition display table is a table displayed by pressing the "detailed screen" button on the display screen shown in FIG.
In the storage device on the remote control 8 side, a physical condition display table, a defecation date and time of each subject in association with the subject identification information, and past measurement data are recorded for each subject. The past measurement data stored in the storage device on the remote control 8 side may be data for the entire period of the defecation period, but due to the capacity of the storage device, the past excretion action during the defecation period is performed. It is preferable that it is the measured data of the excreted gas (the measured data of the period of the first excretion act).

  As shown in FIG. 6, the physical condition display table is a table determined based on the above-described experiments conducted by the inventors, and the vertical axis indicates the odorous gas (a physical condition-poor gas on the display as a first index) which is the first index. Is a graph showing the index regarding the amount of gas), and the horizontal axis indicates the index regarding the amount of the healthy system gas, which is the second index. The first index relates to the amount of odorous gas based on the first detection data detected by the gas detection device 20, and the second index is the second detection data detected by the gas detection device 20. Based on the amount of hydrogen gas, which is a health-related gas. On the display device 68 of the remote controller 8, the measurement result of the defecation gas of the subject is displayed as plot points over time on the physical condition display table having such vertical and horizontal axes. That is, as shown in FIG. 6, the plot point representing the latest measurement result of the same subject is set to "1", the previous result is "2", and the previous two results are "3". ． ． , The past 30 plot points are displayed together with numbers. As a result, the subject can recognize changes in his physical condition over time. In the present embodiment, the dose is 30 times, but it may be weeks or months, or may be yearly considering that the progression of cancer is yearly. It is more desirable that the subject can change the display range according to the situation. Furthermore, if the display range is large, the display method is easy to see, such as monthly average for one year or two years. Needless to say, it is even better to change it in consideration of.

  In the physical condition display table, "disease suspicion level 2", "disease suspicion level 1", "physical condition deficiency level 2", "physical condition deficiency level" are displayed according to the relationship between the index related to healthy gas and the index related to odorous gas Areas of a plurality of stages are set according to whether the physical condition is good, such as “1” and “good physical condition”. Here, as shown in FIG. 6, “disease suspicion level 2” corresponding to the poorest physical condition has the largest amount of odorous gas and the smallest amount of healthy gas. It is set in the upper left area. On the other hand, “good physical condition” corresponding to the condition of the best physical condition is set in the lower right area of the physical condition display table in which the amount of odorous gas is the smallest and the amount of healthy gas is the largest. Areas of "disease suspicion level 1", "physical condition deficient level 2", and "physical condition deficient level 1" that indicate the physical condition levels between these are set in order from the upper left as strip-shaped regions that rise upward on the physical condition display table. Has been done. Such a physical condition display table is preset according to the weight, age, sex, etc. of the subject, and the detection data and the subject are displayed by displaying plot points based on the first and second indexes on the table. Informed analysis can be performed.

As described above, in the present embodiment, since the two indexes, that is, the index related to the amount of odorous gas and the index related to the amount of healthy gas, are used, the physical condition and changes in physical condition of the subject can be more specifically described. Can be evaluated. For example, even if there is a large amount of healthy-type gas that indicates that the person is in good physical condition, if the amount of odorous gas is also large, the evaluation does not give the best physical condition level (in the physical condition display table). Upper right area). On the contrary, even if the amount of health-related gas, which indicates that you are in good physical condition, is very small, if the amount of odorous gas is small, you will not be evaluated as showing the poorest physical condition level. Area in the lower left).
In addition, for example, the boundary line between "physical condition failure level 1" and "physical condition failure level 2" that represents a poorer physical condition is that the abscissa axis indicates an increase in the index related to the amount of healthy gas, and the ordinate axis indicates odor. The index relating to the amount of gas is drawn to the right upward so as to increase, and the "physical condition failure level 2" indicating a state of poor physical condition is distributed on the boundary line where the index relating to the amount of odorous gas is large. Since the boundary line is set in this way, in the present embodiment, even if the index related to the amount of healthy system gas on the horizontal axis is the same value, the physical condition is determined by the value of the index related to the amount of odorous gas on the vertical axis. The evaluation will be different. Further, in order to obtain the same evaluation, it is necessary that the value of the healthy gas amount on the horizontal axis also increases as the value of the odorous gas amount on the vertical axis increases.

  In addition, advice according to the physical condition is recorded in the storage device on the remote controller 8 side. Specifically, the advice "please visit the hospital" for physical condition "suspicious illness level 2", the advice "recommend hospital visit" for physical condition "suspicious illness level 1", the physical condition "physical condition" For "deficiency level 2", "there is increased concern about illness. Let's reduce stress and improve lifestyles as soon as possible", but for "physical condition level 1" "intestinal environment seems to be poor. The advice "Let's keep our lives in mind" is recorded in association with the advice "I am in good physical condition" for the condition "I am in good physical condition". On the physical condition display table, a plot point indicating the physical condition of the subject and advice corresponding to the area where the latest plot point is located are displayed.

  However, the plot points shown on the physical condition display table of the display device 68 of the remote controller 8 do not show the analysis result analyzed by the data analysis device 60 as they are, but are plotted at the moved position after the predetermined correction. The points are shown. Here, the diseases supposed to be detected by the biological information measuring system 1 of the present embodiment are colorectal cancer and the like, and such diseases do not rapidly progress within a few days. On the other hand, since the biological information measuring system 1 of the present embodiment sucks defecation gas from the bowl 2a of the flush toilet 2 installed in the toilet room R and analyzes the sucked gas, all the defecation gas is collected. You cannot do it. In addition, an error occurs in the measurement result of the physical condition due to various factors such as when the subject wears perfume, or when a gas that reacts with the odorous gas sensor 26 such as an odorous gas remains in the toilet room R. There is a risk.

For this reason, if the displayed physical condition is large and the physical condition is unfavorable, the subject is given an unnecessary psychological burden based on one measurement result of the subject. Moreover, if the measurement result of the physical condition largely fluctuates in each measurement, the result is that the subject loses his/her trust in the measurement result of the physical condition. Therefore, in the biological information measuring system 1 of the present embodiment, the analysis result by the data analysis device 60 is corrected so that the displayed measurement result does not largely fluctuate for each measurement. However, the detection data stored in the storage device of the remote controller 8 and the detection data transmitted to and stored in the server 12 are not corrected but are stored together with the reliability of the detection data. Further, it is preferable that the storage device of the remote controller 8 stores the coordinates of the display which is corrected and displayed in consideration of the next display. As described above, not all of the detection data obtained by the biological information measuring system 1 of the present embodiment has high reliability. However, it is possible to detect changes in the physical condition of the subject over a long period of time by continuously collecting data on daily defecation behavior for a long period of time and accumulating the data in the storage device of the remote controller 8 or the server 12. Therefore, it is possible to call attention so as not to cause a large illness such as colorectal cancer before the physical condition of the subject is greatly deteriorated.
As described above, the correction applied to the detection data functions as an output result stabilizing unit that suppresses the index of the physical condition of the subject output to the display device 68 from swinging in the direction of poor physical condition due to a detection error or the like.
In the present embodiment, the detection data stored in the storage device of the remote controller 8 does not necessarily have to be corrected, and the corrected detection data may be recorded.

Next, with reference to FIG. 7, correction of plot points will be described.
FIG. 7A is a diagram showing an example of movement of the plot points of the latest data by correction, and FIG. 7B is a diagram showing limit processing for the movement amount of the plot points.
First, as shown in FIG. 7A, the plot point calculated by the data analysis device 60 based on the latest measurement is “1”, and this point is the center of gravity G of the plot points of the measurement data of the past 30 times. Is far from In this way, when the plot point “1” that is greatly deviated from the distribution of the measurement data up to the previous time is displayed, the subject is given an excessive psychological burden. Since the cancer risk does not increase in one day, such a large change in the measured data may be the result of the bad lifestyle of the previous day or the influence of noise, rather than the increased cancer risk. high. Therefore, in the present embodiment, the correction is performed in consideration of not giving an excessive psychological burden to the subject. Therefore, when the latest analysis result changes to the side of poor physical condition (upper left direction), the data analysis device 60 determines the position where the plot point “1” is displayed on the physical condition display table as the measurement data of this time. Based on the reliability, the display is moved by a predetermined distance in the direction of the center of gravity G. That is, in the example shown in FIG. 7A, the latest measurement data is obtained at the position of the plot point “1′” corrected so as to move the plot point “1” in the direction of the center of gravity G (on the side of good physical condition). It is displayed (the plot point "1" is not actually displayed). The moving distance of the plot point “1” in the direction of the center of gravity G is increased as the reliability of the latest measurement data is lower. In this way, by moving the latest plot point to the side showing a good physical condition, the psychological burden on the subject can be reduced. The calculation of the reliability of the measurement data will be described later. However, the data analysis device 60 reduces the correction amount (movement amount by correction) when the movement of the latest plotted point to the side of poor physical condition continues for a predetermined number of times or more. As a result, the subject can recognize that his/her physical condition is deteriorating and encourage the subject to make an effort to improve the physical condition.

  Further, in the latest physical condition measurement, when very large noise is generated and the latest plot point is greatly deviated, even if the correction described in FIG. It is conceivable that it will move to the side of poor physical condition. For this reason, as shown in FIG. 7B, a predetermined limiter is applied to the moving distance of the latest data from the center of gravity G. That is, the movement of the latest data from the center of gravity G is limited to ±40%, and even if the latest data deviates from the coordinates of the center of gravity G by 40% or more, the latest data is plotted at a position deviated by 40%. .. For example, when the coordinate value of the center of gravity G is (x, y), the range of the coordinate value on which the latest data can be plotted is (0.6x to 1.4x, 0.6y to 1.4y), and there is a further shift. It will not be plotted at the position where

  Further, when such movement of the latest data exceeding 40% continues twice, the range in which the latest data can be moved is relaxed to 60%. Thereby, for example, when the coordinate value of the center of gravity G is (x, y), the range of the coordinate value on which the latest data can be plotted is (0.4x to 1.6x, 0.4y to 1.6y). Be changed. This is because when such a large amount of latest data movement occurs frequently, it is considered that some change in the physical condition of the subject is reflected, not just a measurement error.

Next, the diagnosis table on the server side will be described with reference to FIG. The processing in the server described below is performed by a data analysis circuit provided in the server 12.
FIG. 8 is a diagram showing an example of the diagnostic table displayed on the server side. As described above, in the biological information measuring system 1 of the present embodiment, the measurement data of the entire defecation period analyzed by the data analysis device 60 is sequentially transmitted to the server 12 via the Internet and recorded in the database on the server side. Has been done. The accumulated measurement data can be displayed on the medical institution terminal 16 installed in the medical institution registered by the subject. For example, when the subject receives the message “Recommend going to the hospital” displayed on the display device 68 of the remote controller 8 and the subject visits a medical institution, the medical institution terminal 16 can display a diagnostic table for the server. It is like this. The ordinate and abscissa of the diagnostic table represent the same indices as the physical condition display table displayed on the display device 68 of the remote controller 8, but the physical condition state assigned to each area is more concrete. It has become. By referring to the measurement data of the subject recorded in the database on the server 12 side on the medical institution terminal 16, the doctor can refer to the physical condition of the subject over time, which is useful for examinations and treatments at the medical institution. You can Alternatively, in the case where the measurement data transmitted to the server 12 indicates a significant physical condition, the subject terminal 14 of the subject concerned is notified to receive medical examination from the medical institution to which the subject is registered. The present invention can also be configured.

  The diagnosis table displayed on the medical institution terminal 16 is different from the physical condition display table displayed on the display device 68 of the subject as described above. As shown in FIG. 8, the diagnostic table on the server 12 side is a table determined based on the above-described experiments conducted by the inventors, and shows the relationship between the amount of healthy gas and the amount of odorous gas. Is associated with the disease state. Specifically, according to the relationship between the amount of healthy gas and the amount of odorous gas in the diagnosis table, “large concern of colon cancer”, “large concern of early colon cancer”, “suspected early colon cancer” , "Physical condition level 3", "physical condition level 2", "physical condition level 1", "health condition", "intestinal insufficiency (diarrhea)", and "suspected erroneous measurement" areas are set. ..

  On the server-side diagnosis table set in this way, the past measurement data of the subject is plotted over time, and based on the position of the plot point, "large concern for colorectal cancer", "great concern for early colorectal cancer", "early concern for early colorectal cancer" A determination regarding a cancer disease such as “suspected colorectal cancer” is performed. It should be noted that the plot points displayed in the diagnosis table on the server side are not subjected to correction or limiter, and the doctor comprehensively judges the displayed data together with their reliability. Further, since the diagnosis table and the determination result displayed on the medical institution terminal 16 are set on the assumption that the doctor refers to them, the name of the disease, the degree of progress thereof, etc. may be displayed more concretely. Is becoming In addition, when the plot points are located in a region related to cancer diseases such as “large concern of colorectal cancer”, “large concern of early colorectal cancer”, and “suspected early colorectal cancer” over a long period of time, the It is displayed that there is a high possibility that The doctor can comprehensively judge the indicated plot points, the reliability of the measurement, and the like, and inform the subject of the physical condition. In addition to the diagnostic table in which the past measurement data is continuously plotted, the medical institution terminal 16 also displays the reliability calculated by referring to the database, the data measured by various sensors, the stool volume, and the stool status. The stool status information and the defecation history information regarding at least one of them are also configured to be displayed.

  Further, a large number of subject side devices 10 are connected to the server 12, and measurement data of a large number of subjects are accumulated. Further, in the database on the side of the server 12, data is also stored regarding what kind of medical condition a subject who has visited a medical institution based on certain measurement data had as a result of being subjected to a precise examination at the medical institution. There is. Therefore, data in which the data measured by the biological information measuring system 1 of the present embodiment and the actual medical condition are associated can be accumulated on the server 12 side. The diagnosis table on the server side is sequentially updated on the basis of the measurement data of a large number of subjects accumulated in this way, and more accurate diagnosis can be performed based on the updated diagnosis table. Further, the physical condition display table can be updated based on the data accumulated on the server side. The physical condition display table updated based on the data on the server side is downloaded to each subject side device 10 via the Internet and displayed on the display device 68 of the remote controller 8. However, even when the physical condition display table is updated, the physical condition display table directly presented to the subject is modified to be appropriate for showing to the subject.

Next, with reference to FIG. 9, the data detected by each sensor provided in the biological information measuring system 1 of the present embodiment and the estimation of the gas amount based on the data will be described.
FIG. 9 is a graph schematically showing a detection signal by each sensor provided in the biological information measuring system 1 in one defecation of the subject. FIG. 9 shows waveforms of detection signals from the hydrogen gas sensor 24, the carbon dioxide sensor 28, the odorous gas sensor 26, the humidity sensor 30, the temperature sensor 32, the seating detection sensor 36, and the room entrance detection sensor 34 in order from the top. ..

  The estimation of the gas amount based on the detection signal of each sensor is performed by the data analysis device 60, which is a physical condition determining means for determining the physical condition, that is, the CPU and the storage device built in the remote controller 8, or the CPU of the server 12. It is performed in the storage device. The data analysis device 60 includes a start threshold value of the rate of change of the gas amount, which is read from the storage means of the remote controller 8 for determining the start time point of the excretion act, and a gas amount that enables stable measurement. The stability threshold for is preset. The excretion mentioned here also includes a fart.

First, at time t ₁ in FIG. 9, the entry detection sensor 34 detects entry of a subject. The data analyzer 60 measures the gas amount of the odorous gas with the odorous gas sensor 26 even in the state (time t _{0 to} t ₁ ) before the subject enters and leaves the toilet room R by the entry sensor 34. .. Even in this state, the odorous gas sensor 26 reacts and outputs a certain detection signal due to the influence of the fragrance and the residual feces adhering to the bowl 2a of the flush toilet 2. In this way, the measurement value of the odorous gas sensor 26 before the subject enters the room is set as the environmental reference value of the amount of gas that is residual gas noise. In addition, in the state before the room entrance detection sensor 34 detects the room entrance, the odorous gas sensor 26 and the suction device 18 are in a power saving state, and the sensor heating heater 54 for heating the detection part of the odorous gas sensor 26. The temperature is set to be low, the rotation speed of the suction fan 18c is suppressed, and the flow rate passing through is also low.

Next, at time t ₁ , when the entrance detection sensor 34 detects that the subject has entered the room, the odorous gas sensor 26 and the suction device 18 are activated. As a result, the temperature of the sensor heating heater 54 of the odorous gas sensor 26 rises, the rotation speed of the fan of the suction device 18 rises, and a predetermined amount of gas is sucked. Thus, after the value detected by the temperature sensor 32 rises once increased, converges to a proper temperature (and time t ₁ in FIG. 9). That is, when the entrance detection sensor 34, which is the “toilet bowl use preparation determination means”, determines that the subject has entered the room, the control device 22 determines that the “feces preparation period” by the subject has started, and the detection unit of the odorous gas sensor 26. Is increased from the second temperature for standby to the first temperature which is an appropriate temperature for measurement. In the present specification, the period during which the entrance detection sensor 34 detects the entrance of the subject into the toilet room R (time t _{1 to} t _{8 in} FIG. 9) is referred to as “a bowel movement” once. .. Further, when the subject enters the room, the detection signal detected by the odorous gas sensor 26 rises. This is because the odorous gas sensor 26 reacts to the body odor of the subject, the perfume used, the hairdressing preparation, and the like. That is, the amount of increase from the residual gas noise before the subject enters the toilet room R is the subject noise caused by the subject. The noise measurement circuit built in the data analysis device detects residual gas noise caused by the gas remaining in the bowl 2a and subject noise caused by the subject. Further, since the odorous gas sensor 26 is set to have an extremely high sensitivity for the purpose of detecting an extremely small amount of odorous gas contained in the stool gas discharged into the toilet bowl on the order of ppb, the odorous gas sensor 26 senses a human sense of smell. It also reacts to odors that cannot be sensed with.

  Thus, when the subject enters the room, the detection signal detected by the odorous gas sensor 26 rises. However, the "physical condition analysis prohibiting means" realized by the circuit built in the data analysis device 60 uses the increase in the detection signal for the analysis of the physical condition of the subject during the "defecation preparation period". It is not used as the first detection data. That is, the increase in the detection signal of the odorous gas sensor 26 before the subject sits down on the toilet seat 4 is likely due to the body odor of the subject, perfume, or alcohol sterilization of the toilet seat 4. The “physical condition analysis prohibiting means” prohibits the detection signal of the odorous gas sensor 26 during the defecation preparation period from being the detection data used for the physical condition analysis of the subject, and prevents erroneous detection of body odor, perfume, and the like.

Further, the detection signal detected by the odorous gas sensor 26 during the defecation preparation period is one that reacts with the odorous noise due to the odorous gas remaining in the toilet room and the odorous gas adhering to the subject. it is conceivable that. In the present embodiment, the “odor noise reference value setting circuit” incorporated in the data analysis device 60 is configured to detect the noise level of the odor noise (detection signal at time t ₂ in FIG. 9) at the end of the “feces preparation period”. ) Is set as a reference value for odor noise. At the end of this "feces defecation preparation period", the noise level stabilizes because the subject has sufficiently approached the flush toilet 2 and has completed undressing, which is suitable for setting the reference value for odor noise. Further, since the opening of the flush toilet 2 is covered by the body of the subject after the subject sits on the toilet seat 4 and begins to excrete, the state of the gas in the bowl 2a is stable. It is suitable for setting the reference value of odor noise. As described above, it is preferable that the reference value of the odor noise be set by the noise level before and after the transition from the “feces preparation period” to the “feces period”, that is, before and after the subject sits down.

Next, at time t ₂ in FIG. 9, when the seating detection sensor 36 detects that the subject is seated on the toilet seat 4, this time point is set as the start time point of the subject's one bowel movement period. In this specification, the seating detection sensor 36 is referred to as a period that detects the seating of the toilet seat 4 subjects "defecation period" once (time t ₂ ~t ₇ in FIG. 9).

In the example shown in FIG. 9, after the subject sits down at time t ₂ , the detection value of the humidity sensor 30 increases between times t _{3 and} t ₄ . This is the detection of urination of the subject, and the detection value of the odorous gas sensor 26 has hardly changed, so the data analysis device 60 determines that no excretion is being performed. As described above, the urine discharged by the subject hardly affects the detection value of the odorous gas sensor 26 because the discharged urine immediately enters the accumulated water in the bowl 2a. Next, at time t ₅ , the detection values of the hydrogen gas sensor 24 and the odorous gas sensor 26 suddenly rise. As described above, when the detected value of the odorous gas sensor 26 rapidly rises from the reference value of the odorous noise at a positive change rate of a predetermined value or more in the defecation period after the subject sits down, the data analysis device 60 causes the excretion. Judge that the act was performed.

  The "physical condition analysis prohibition canceling means" realized by the circuit incorporated in the data analysis device 60 detects the physical condition measurement prohibited by the "physical condition analysis prohibiting means" when a rapid rise of such detection data is detected. To allow the acquisition of detection data for. That is, it is highly likely that the sharp increase in the detection data by the odorous gas sensor 26 during the “fecal period” is due to the excretion act by the subject, and therefore the “physical condition analysis prohibition canceling means” does not have such an increase. When detected, the detection data after the rising is adopted as the first detection data for the physical condition analysis of the subject.

When the excretion is performed, the data analysis device 60 causes the variation range of the detected value of the odorous gas sensor 26 to increase from the reference value of the residual gas (hatched portion of the graph of the detected value of the odorous gas sensor 26). Based on this, the amount of odorous gas emitted from the subject is estimated. That is, the data analysis device 60 sets the value of the detection data at the start of the defecation period by the subject as the reference value of the odorous noise that is the noise level caused by the subject, and the detection value detected by the odorous gas sensor and the reference value. It is estimated as the amount of odorous gas accompanying the first excretion act by integrating the difference between and from the start point to the end point. As described above, since the data analysis device 60 estimates the odorous gas amount based on the difference from the reference value, the influence of noise caused by the subject can be suppressed. Therefore, the circuit that is included in the data analysis device 60 and performs this calculation functions as a noise suppressing unit and also as a second noise coping unit that reduces the influence of subject noise. Further, when the noise level caused by the subject is equal to or higher than a predetermined value, the data analysis device 60 notifies the display device 68 of that fact. In this way, the noise suppressing unit executes the first control which is a normal control when the noise level is less than the predetermined value, and the second control which is different from the normal control when the noise level is the predetermined value or more. To execute. The details of the estimation of the odorous gas amount will be described later. Similarly, the data analysis device 60 estimates the amount of hydrogen gas discharged from the subject based on the increase in the value detected by the hydrogen gas sensor 24 from the reference value of the residual gas. After excretion by the subject (time t _{5 in} FIG. 9), the detection values of the odorous gas sensor 26 and the hydrogen gas sensor 24 return to the reference value of the residual gas. Next, at time t ₆ , when the subject excretes for the second time, the detection values of the odorous gas sensor 26, the carbon dioxide sensor 28, and the hydrogen gas sensor 24 suddenly rise again. In the second excretion act, as in the first excretion act, the odorous gas amount and the hydrogen gas amount emitted from the subject are estimated based on the increase in the residual gas from the reference value. When estimating the amount of odorous gas and hydrogen gas for the second and subsequent excretion activities, the reference value was changed for each time, considering the effects of floating feces floating in the sealed water in the bowl. You may.

  In this way, if the subject has excreted multiple times after entering the room (that is, if a change in the gas amount above a predetermined threshold is detected multiple times), defecation accompanying each excretion The amount of gas is estimated in the same way. When calculating the amount of defecation gas for the second and subsequent excretion act, the reference value may be changed for each time in consideration of the influence of floating feces floating in the sealed water in the bowl.

Next, at time t ₇ of FIG. 9, the sitting detection sensor 36 detects the subject's leaving the seat, and one defecation period ends, and at time t ₈ , the entrance detection sensor 34 detects the subject's leaving the room and one defecation. The action ends. The data analysis device 60 estimates the amount of defecation gas accompanying each excretion action until the subject's exit from the room is detected by the room entrance detection sensor 34.

  Based on the defecation gas amount thus measured, the physical condition of the subject is determined by the remote controller 8 and the server 12. At this time, it is desirable that the remote controller 8 can display the physical condition measurement during the defecation period or immediately after the defecation period ends. Then, when excretion is performed a plurality of times, stool accumulates in the bowl 2a, so that the accuracy of measuring the amount of gas by the odorous gas decreases. On the other hand, during the first excretion, the defecation gas reaching the most downstream part of the large intestine is discharged, so that the most useful information for measuring the physical condition can be obtained and the reliability of the measurement is high. Based on these, at the time point when the defecation gas amount (odorous gas and hydrogen gas amount) due to the first excretion act can be estimated on the remote control 8 side, the subject is based on only the defecation gas amount due to the first excretion act. Is measured and displayed on the display device 68 of the remote controller 8. Alternatively, the physical condition can be measured such that the weight of the measurement value based on the detection data regarding the initial excretion act in one bowel movement is heavier than the weight regarding the late excretion act.

The physical condition display table displayed on the display device 68 shows the odorous gas concentration based on the first detection data on the vertical axis and the hydrogen gas concentration based on the second detection data on the horizontal axis. The physical condition of the subject is displayed. Here, as described with reference to FIG. 9, the first and second detection data are acquired for each excretion act (for example, time t ₅ to t ₆ in FIG. 9) during one defecation period. Is. Since the physical condition of the subject is measured by the correlation between the odorous gas contained in the defecation gas and the healthy system gas, one plot point displayed on the physical condition display table relates to the same excretion act. It should be based on the first and second detection data. In addition, it is preferable that the detection data used for the analysis of the physical condition relate to an initial excretion act during one defecation period.

  On the other hand, on the server 12 side, it is desirable to make a more accurate determination by using the total amount of defecation gas resulting from a plurality of excretion actions. Therefore, on the server 12 side, the total amount of defecation gas (total amount of odorous gas and hydrogen gas) due to a plurality of excretion actions, and more preferably, all of the defecation periods from sitting to sitting are included. The physical condition of the subject is determined based on the total amount of defecation gas produced by the excretion activity. It should be noted that the determination of the physical condition of the subject on the server 12 side does not necessarily have to be the total amount of defecation gas due to all the defecation activities included in one defecation period, but all the defecations included in many defecation periods. It is preferable to be based on the total amount of defecation gas due to the act.

  Here, in the example shown in FIG. 9, the reference value of the residual gas is constant, but the emission amount of the odorous gas can be estimated even when the reference value is not constant. For example, when the detection value detected by the odorous gas sensor 26 tends to increase, as shown in FIG. 10A, the increase in the detection value detected by the odorous gas sensor 26 before the start of excretion is detected. The rate of change is taken as the reference value, which is the auxiliary line A that is drawn as it continues before and after excretion. The amount of the odorous gas can be estimated by determining the time when the inclination of the detection value of the odorous gas sensor 26 greatly changes from the auxiliary line A as the time when one excretion act is started.

  Since the amount of odorous gas is estimated by setting the residual gas before excretion as a reference value and estimating based on the difference from the reference value, it is desirable that the reference value does not fluctuate significantly. Therefore, in the data analysis device 60, the change rate of the detection value (that is, the change rate of the reference value=the inclination of the auxiliary line A) detected by the odorous gas sensor 26 before the start point of the excretion act is the first stability. If it is equal to or lower than the sex threshold value, a notification indicating that the display device 68 of the remote controller 8 or the speaker 70 is provided displays a message indicating that the estimation accuracy of the defecation gas amount is high.

  On the other hand, if a spray type fragrance is sprayed just before the act of excretion, or if a disinfectant sheet or disinfectant spray of an alcoholic toilet seat disinfectant is used, it is detected by the odorous gas sensor 26 before the act of excretion. The detected value fluctuates greatly. If such a state is set as the reference value, it is impossible to accurately estimate the amount of odorous gas. Therefore, the data analysis device 60 displays the display device of the remote controller 8 when the reference value, which is the noise level caused by the subject, is equal to or greater than the predetermined value, or when the rate of change of the reference value is equal to or greater than the second stability threshold. The notification means including the 68 or the speaker 70 notifies that the estimation accuracy of the defecation gas amount is low. When excretion is performed despite such notification, the measurement for analyzing the physical condition is not performed, or the measurement reliability is set low.

Next, with reference to FIG. 10B, detection of use of the alcohol-based toilet seat disinfectant will be described. FIG.10(b) is a graph which shows an example of the detected value by the odorous gas sensor 26 when a test subject uses an alcoholic toilet seat disinfectant.
First, at time t ₁₀ in FIG. 10B, after the entrance of the subject is detected by the entry detection sensor 34, the detection value of the odorous gas sensor 26 gradually rises in response to the body odor of the subject. Next, at time t ₁₁ , when the subject removes the toilet seat sanitizing sheet using the alcoholic sanitizer, the odorous gas sensor 26 reacts with the alcohol odor, and the detected value rises sharply. At time t _12, subjects completed the eradication of the toilet seat 4, and to discard the eradication seat in the bowl 2a, alcohol-based detection value of the odor of gas sensor 26 immediately due to the high volatility starts to decline. Since this characteristic is different from the residual off-flavor gas component, the inventors have found that the rapid increase in the detected value due to alcoholic sterilization decreases after a while and the measurement becomes possible. However, when disinfecting with an alcohol-based disinfectant sheet, it may float in sealed water when it is discarded. In this case, the volatilization of alcohol continues and the decrease tends to be delayed. Therefore, it is desirable to discharge the sheet as follows.

Next, at time t ₁₃ , after the seating detection sensor 36 detects the seating of the subject, when the subject operates the washing switch (not shown) of the remote controller 8 to wash the flush toilet 2, the water in the bowl 2a Since the disinfecting sheet that has floated on the sheet is discharged, the detection value of the odorous gas sensor 26 drops sharply. When the alcohol-based disinfectant is used, the odorous gas sensor 26 generally changes in this way.

  For this reason, the toilet seat sterilization detection circuit built in the data analysis device 60 detects the odorous gas sensor 26 before the seating detection sensor 36 detects the seating of the subject after the entrance detection sensor 34 detects the entrance of the subject. When the detected value sharply increases by a predetermined value or more, it is determined that the subject has sterilized the toilet seat 4 and the like using the alcohol-based sterilizing agent. In this way, the present inventor can detect the disinfection action of the toilet seat 4, which is a peculiar action performed by the subject in the toilet room R, from the detection signals of the entry detection sensor 34, the seating detection sensor 36, and the odorous gas sensor 26. Was found.

  Further, when the toilet seat disinfection detection circuit detects the use of the alcoholic disinfectant and the washing of the flush toilet 2 is not executed for a predetermined time even after the subject sits down, the disinfection built in the data analysis device 60. The noise handling circuit sends a signal to the toilet bowl cleaning device 46 to automatically perform toilet bowl cleaning. Further, when the toilet seat disinfection detection circuit detects the use of the alcohol-based disinfectant, the disinfection noise countermeasure circuit increases the rotation speed of the suction fan 18c. As a result, the amount of gas sucked by the suction device 18 is increased, and the alcohol component volatilized by the disinfection of the toilet seat is actively deodorized by the deodorizing filter 78, and the detection value of the odorous gas sensor 26 can be lowered. it can. That is, when the toilet seat sterilization detection circuit detects sterilization, the sterilization noise handling circuit operates the deodorizing device to reduce the influence of noise caused by the alcohol-based sterilization agent.

  Further, in the state where the toilet seat sterilization detection circuit detects the use of the alcoholic sterilization agent and the detection value of the odorous gas sensor 26 is increased, the sterilization noise response circuit stops the physical condition measurement and waits for defecation. A message is displayed on the display device 68 to notify the subject. The sterilization noise handling circuit causes the display device 68 to display a message to the subject to wait for defecation until the physical condition can be measured, and notifies the subject. This reduces the effect of noise caused by the alcohol-based disinfectant. On the other hand, the detection value of the odorous gas sensor 26, which has rapidly risen due to the use of the alcohol-based disinfectant, starts to decrease when the subject finishes the disinfection.

  When the noise level detected by the odorous gas sensor 26 starts to decrease, the sterilization noise corresponding circuit deletes the message waiting for defecation displayed on the display device 68 and notifies that measurement is possible. To do. That is, in a situation where the noise level due to the alcohol-based disinfectant tends to decrease, it is possible to detect the rising of the detection value of the odorous gas sensor 26 that tends to decrease. The data analysis device 60 detects the time when the detection value of the odorous gas sensor 26, which tends to decrease, rises as the discharge of defecation gas by the subject. However, when the decrease in the noise level detected by the odorous gas sensor 26 is equal to or higher than the predetermined change rate, the sterilization noise handling circuit stops the physical condition measurement and continues to display the message to the effect that it waits for defecation. .. That is, in the state where the noise level is drastically reduced, the increase in the detection value due to the release of the defecation gas is masked, and the release of the defecation gas cannot be accurately detected. Further, it is desirable to stop the calculation even when the reference value is greatly reduced because the error becomes large.

  Further, the disinfection noise handling circuit suspends the measurement for the physical condition measurement or sets the measurement reliability low when the noise level is equal to or higher than a predetermined value due to the use of the alcohol-based disinfectant. As described above, when the measurement reliability is set to be low, the plot points on the physical condition display table described with reference to FIG. 7A are corrected to a larger degree on the side showing a good physical condition. That is, the sterilization noise handling circuit corrects the physical condition of the physical condition output by the display device 68 to the side exhibiting a good physical condition when the sterilization of the toilet seat is detected.

  On the other hand, when the flush toilet 2 has a lot of attached feces or when a large amount of fragrance is used, the absolute value of the amount of gas detected by the odorous gas sensor 26 becomes large, and in some cases, the value detected by the sensor is In such a situation, it becomes difficult to accurately estimate the amount of the odorous gas, which is a very small amount, because it saturates or goes out of the band where the measurement accuracy is high. Therefore, the data analysis device 60 does not perform the measurement for the physical condition measurement or sets the measurement reliability to be low even when the absolute amount of the reference value is equal to or larger than the third stability threshold.

  Further, in the database of the server 12, as described above, the measurement data of the odorous gas amount and the healthy gas amount of the new subject are sequentially accumulated. Further, in the database of the server 12, the medical examination result of the cancer that the subject has examined at the medical institution from the medical institution terminal 16 is recorded in association with the identification information of the subject. The server 12 updates the recorded diagnosis table on the basis of such a medical examination result of cancer and a change in history of changes in gas amounts of odorous gas and healthy gas.

  FIG. 11 is a diagram illustrating an example of updating the diagnosis table. For example, as a result of plotting and analyzing the measurement data A of the odorous gas and the health system gas of the subject in the old diagnosis table, even if it is determined as "suspected early colorectal cancer", by the medical examination, Assume that this patient has been diagnosed with early colorectal cancer. In such a case, as shown in FIG. 11, “large bowel cancer concern” and “early large bowel cancer concern” are included so as to include a portion corresponding to the measurement data A of a subject diagnosed with early colorectal cancer. , Expand the area of "suspected early colorectal cancer" and narrow the area of "body condition level". On the contrary, for example, even in the old diagnosis table, even if it is determined as "suspected early colorectal cancer" from the correlation of the gas amounts of odorous gas and healthy system gas, the result of the medical examination shows that the cancer is suspected. If there are a large number of subjects diagnosed with none, expand the area of "physical condition deficiency level" and narrow the areas of "large concern of colorectal cancer", "great concern of early colorectal cancer", and "suspected early colorectal cancer" .. When the diagnosis table is updated, each area of the display table is changed as well.

  Further, the server 12 records a plurality of physical condition display tables that are conditionally classified with respect to the attribute information such as the weight, age, and sex of the subject and the tendency of the history of changes in the measurement data of odorous gas and healthy gas. ..

  Then, when the subject side device 10 desires to perform a more detailed analysis of the physical condition, attribute information such as the weight, age, and gender of the subject is registered in the server 12 together with the identification information of the subject. Then, when the measurement data of the subject who desires the more detailed analysis is accumulated in the server 12, the server 12 selects the physical condition display table of the condition close to the history of the change of the attribute information and the measurement data of the subject. .. The server 12 transmits the selected physical condition display table to the subject side device 10 via the network. Upon receiving the new physical condition display table from the server 12, the subject side device 10 changes the already stored physical condition display table to the received physical condition display table. This allows the subject-side device 10 to perform a more accurate analysis of the physical condition according to the subject's attributes and the history of measurement data.

  In addition, in the embodiment described above, the subject side device 10 is also configured to store the history of the measurement data, but the present invention is not limited to this, and the measurement data is stored only in the database of the server 12, and the subject side is stored. The apparatus 10 may read the history of past measurement data from the database of the server 12 and perform the checkup result calculation and the continuous diagnosis in the checkup step S5.

  Here, the method of calculating the reliability in the examination step S5 of FIG. 4 will be described in detail below. As a characteristic of the semiconductor gas sensor used as the odorous gas sensor 26, not only the odorous gas but also the odorous gas around the fragrance, the sterilization sheet and the like and the odorous gas adhering to the body and clothes of the subject are detected. Sometimes. Furthermore, the detection value of the odorous gas detected by the semiconductor gas sensor also changes depending on the state of feces (for example, whether or not diarrhea is present) and the amount of feces. Therefore, it is required to evaluate the magnitude of the influence of these offensive odor gas noises and the condition of stool when determining a disease related to cancer. In the present embodiment, by the reliability determination circuit provided in the data analysis device 60 of the subject side device 10 installed in the toilet room, the influence of such an offensive odor gas noise of the defecation gas, the condition of the stool, etc. can be measured. The event that affects the accuracy is evaluated, and the measurement reliability is determined as an index indicating the accuracy of gas detection by the gas detection device 20.

  FIG. 12 is a diagram for explaining a method of determining measurement reliability. In the following description, the case where the correction is performed by the influence of the offensive odor gas adhering to the body or clothes of the subject, the influence of humidity, the influence of temperature, and the influence of the frequency of defecation gas will be described as an example. The following determination of the measurement reliability is performed by using the reliability determination circuit that determines the reliability of the odorous gas detection in the data analysis device 60 of the remote controller 8.

  Outputs from the hydrogen gas sensor 24, the odorous gas sensor 26, the carbon dioxide sensor 28, the humidity sensor 30, the temperature sensor 32, the room entrance detection sensor 34, the seating detection sensor 36, and the defecation/urination detection sensor 38 of the measuring device 6 are output from the remote controller 8. Data analysis device 60. FIG. 12 shows an example of outputs from these sensors.

  Further, in the data analysis device 60 of the remote controller 8, a plurality of reliability correction tables for calculating the reliability are recorded in advance.

  13 to 16 are respectively a subject attached offensive odor gas noise correction table for determining the influence of the offensive odor gas attached to the subject's body and clothes, a humidity correction table for determining the influence of humidity, and the influence of temperature. FIG. 3 is a diagram showing a temperature correction table for carrying out and an excretion number correction table for determining the influence of the number of excretion.

  The semiconductor gas sensor used as the odorous gas sensor 26 detects an offensive odor noise (environmental noise) other than the defecation gas attached to the subject. When the amount of the offensive odor gas component (noise amount) attached to the subject is large, it can be said that the reliability of the measurement is low. Therefore, as shown in FIG. 13, in the subject adhering offensive odor gas noise correction table, a correction value is set for the attached offensive odor gas noise amount. Specifically, when the amount of the offensive odor gas component attached to the subject is less than the predetermined value, the correction value is set to 1 as a value that is not corrected, and when the amount of the offensive odor gas component attached to the subject is equal to or more than the predetermined amount. Increases the negative correction amount from 1 in order to gradually decrease the reliability value as the amount of the offensive odor gas component increases, and when the amount of noise of the offensive odor gas component attached to the subject is much larger than the predetermined amount. Indicates that measurement is not possible (correction value 0). The attached offensive odor gas noise amount is determined based on the detection data detected by the odorous gas sensor 26 in the non-fecal period before the seating detection sensor 36 detects that the subject is seated. The offensive odor gas component attached to the subject affects the entire defecation period, not a part of the defecation period, so the reliability is corrected throughout the defecation period. Hereinafter, such correction of the reliability over the entire defecation period is referred to as “total correction”.

  Further, when the subject urinates, the humidity inside the bowl 2a rises, and the humidity of the gas reaching the detection portion of the odorous gas sensor 26 rises. When the humidity of the gas reaching the odorous gas sensor 26 becomes high, the resistance of the odorous gas sensor 26 changes, and the sensor sensitivity decreases. Further, when urine adheres to the attached stool in the bowl 2a, the attached stool becomes soft from a dry state, and a large amount of defecation gas is temporarily released from the attached stool while urine is collected in the bowl 2a. There is. The defecation gas emitted from the adhered feces may be detected by the odorous gas sensor as noise when measuring the defecation gas emitted from the subject. Therefore, as shown in FIG. 14, in the humidity correction table, 1 is set when the humidity measured by the humidity sensor 30 is lower than a predetermined value, and when the humidity is higher than the predetermined value, the reliability increases as the humidity increases. Is decreased and is equal to or more than the measurement limit value, the measurement is impossible (correction value 0). Since the act of urinating is a temporary act, the humidity correction table is a “partial correction” that corrects only the period in which a change in humidity measured by the humidity sensor 30 is observed. In addition, hereinafter, the correction of the reliability only in a specific period of the defecation period, or the correction of the entire defecation period but the different correction in each period of the defecation period is referred to as "partial correction".

  Further, the semiconductor gas sensor used as the odorous gas sensor 26 detects the odorous gas based on the oxidation/reduction reaction of oxygen adsorbed on the surface and the reducing gas in a state where the detection part made of tin oxide is heated. It is detecting. Therefore, when the temperature of the detection unit is higher or lower than the predetermined temperature range, the sensor sensitivity will decrease. Therefore, as shown in FIG. 15, in the temperature correction table, the correction value is determined according to the temperature detected by the temperature sensor 32. Specifically, when the temperature detected by the temperature sensor 32 is within an appropriate temperature range suitable for the measurement of the detection unit of the odorous gas sensor 26, the correction value is set to a value larger than 1 so as to increase the reliability. If the temperature detected by the temperature sensor 32 is within a range slightly higher or lower than the appropriate temperature range, the correction value is set to a value less than 1 so as to lower the reliability value, and further detected by the temperature sensor. When the measured temperature is higher than the upper limit of measurable temperature or lower than the lower limit of measurable temperature, the measurement is not possible (correction value 0). Since the temperature correction does not largely change during the defecation period, it is an overall correction for correcting the entire defecation period.

  In addition, as described above, when performing a plurality of defecation actions during one defecation period, the amount of defecation gas itself increases (the amount of odorous gas also increases) at the first time. The excretion behavior in the early stage is more accurate than that in the later stage. Therefore, as shown in FIG. 16, in the excretion act frequency correction table, the correction value of the first defecation gas is set to a value larger than 1 so as to increase the reliability value, the second time is set to 1, and the third and subsequent times are set. The value was set to be less than 1 and gradually decreased as the number of times increased. As a result, the first defecation gas is devised so as to be preferentially diagnosed. The excretion frequency correction table corrects only the period in which defecation gas is detected, and is a partial correction.

As shown in FIG. 12, when the entrance of the subject is detected by the entrance detection sensor 34 at time t ₁ , the control device 22 of the measurement device 6 shifts from the pre-measurement environment maintenance process in the standby state to the measurement start preparation process. Then, the sensor heating heater 54 and the suction device 18 are driven. As a result, the temperature detected by the temperature sensor 32 rises and converges to an appropriate temperature. Then, the data analysis device 60 of the remote controller 8 refers to the temperature correction table in the non-fecal period before the seating detection sensor 36 detects the seating, and the correction value corresponding to the convergence temperature measured by the temperature sensor 32. To get. In the example shown in FIG. 12, the temperature correction value is 0.9.

Also. When the subject enters the room at time t ₁ , the detection data detected by the odorous gas sensor 26 increases due to the offensive noise attached to the subject, and then converges to a constant value. Then, at time t ₂ , the seating detection sensor 36 detects the seating. The data analysis device 60 of the remote controller 8 obtains a correction value corresponding to the detection data measured by the odorous gas sensor 26 in the non-fecal period before the seating detection sensor 36 detects the seating. In the present embodiment, the test subject attached offensive odor gas noise correction value is 0.7.

Next, at time t ₃ , when the subject urinates during the defecation period after the seating detection sensor 36 detects the seating, the detection value by the humidity sensor 30 increases. The detection of the increase in humidity by the humidity sensor 30 may be performed, for example, by measuring the humidity before the defecation period, that is, before the seating detection sensor 36 detects the seating. In this way, when the humidity sensor 30 detects an increase in the detection data, the data analysis device 60 refers to the humidity correction table for the period in which the detection data is increasing, and corresponds to the increased detection data. Calculate the correction value. In the present embodiment, part correction value of the period detected data by the humidity sensor 30 is increased (i.e., time t ₃ ~t ₄₎ it becomes 0.6.

Next, when the subject excretes at time t ₅ and t ₆ and the rate of change in the difference between the detection data detected by the odorous gas sensor 26 and the reference value becomes equal to or greater than a predetermined value, the data is The analysis device 60 calculates the amount of gas accompanying this excretion act. Further, the same time, the data analyzer 60 in accordance with the number of times of bodily functions in the bowel period refers to the number of times the correction table, a period corresponding to the first bodily functions (i.e., the time t ₅ ~t ₅ ') is The correction value becomes 1.5, and the correction value becomes 1.0 in the period corresponding to the second excretion act (that is, time t _{6 to} t ₆ ′).

Here, within one "defecation period", the defecation gas or fart that is first discharged from the subject is the gas that stays in the vicinity of the rectum of the subject and is the gas that stays in the body for the longest time. Therefore, it can be said that the gas best reflects the intestinal condition of the subject. Therefore, the time when the detection data of the odorous gas sensor 26 first rises from the reference value of the odorous noise at a rate of change equal to or greater than a positive predetermined value (that is, time t ₅ ) is within one "fecal period". It is estimated that it is the beginning of the first excretion act of the subject, and the detection data regarding the initial excretion action after this point (for example, the detection data within a predetermined time from time t ₅ ) is suitable for measuring the health condition of the subject. is there. The “physical condition analysis prohibition canceling means” incorporated in the data analysis device 60 employs the detection data after the detection data first rises as the first detection data for the physical condition analysis of the subject.

In the above example, first excretion (time t ₅ ~t ₅ 'of FIG. 12), the second excretion (time t ₆ ~t _6' of FIG. 12),. ． ． Is a small correction value in the order, but lowers the reliability of the detected data, the first detection data for the clearance (time t ₅ ~t ₅ ') only adopted as the first detection data to be used for physical condition analysis of the subject However, the present invention can be configured so that other detection data is not used for physical condition analysis. Alternatively, the detection data regarding the first excretion and the detection data that meets the predetermined conditions thereafter may be adopted as the first detection data for the physical condition analysis. For example, when the subject's first excretion is a small amount of fecal excretion and the second excretion is a large amount of fart, the defecation gas in the second excretion is more useful for physical condition analysis. .. Therefore, if the excretion is within a predetermined number of times or within a predetermined time after the first excretion, and the excretion is over a predetermined amount, it is considered that the detection data conforms to the predetermined condition, and the second and subsequent times. The present invention can also be configured such that even the detection data relating to the excretion of sucrose is used as the first detection data in the physical condition analysis.

  The data analysis device 60 calculates the measurement reliability of the gas detection associated with each excretion act based on the total correction value and the partial correction value thus estimated. In this embodiment, the reliability is based on 3, and the reliability for each excretion act is calculated as 3×product of all overall correction values×product of all corresponding partial correction values. Specifically, the reliability of the first excretion act is 3 (reference)×0.9 (temperature correction value)×0.7 (subject adhesion noise correction value×1.5 (count correction value)=2.84. Further, the reliability of the second excretion act is 3 (reference)×0.9 (temperature correction value)×0.7 (subject adhesion noise correction value×1.0 (count correction value)=1. It becomes 89.

  The reliability calculated in this way is displayed on the display device 68 of the remote controller 8 as described with reference to FIG. Further, the calculated reliability is transmitted from the subject-side device to the server 12 together with the detection data of the odorous gas sensor 26 and the detection data of the hydrogen gas sensor 24, and is recorded in the defecation gas database of the server 12. At this time, in the defecation gas database of the server 12, as the detection data of the odorous gas sensor and the detection data of the hydrogen gas sensor, raw data which is not corrected by the reliability described later is recorded. When the measurement data is browsed by the medical institution terminal 16 connected to the server 12, the measurement reliability is displayed together with the detection data of the odorous gas sensor 26 and the detection data of the hydrogen gas sensor 24. The doctor of the medical institution makes a diagnosis by referring to the measurement reliability displayed together with the odorous gas and the hydrogen gas displayed on the medical institution terminal 16. Accordingly, when a doctor or the like makes a diagnosis of the physical condition of the subject based on the measurement data, it is possible to make a more accurate diagnosis by using the data with high measurement reliability. Further, the doctor may make a diagnosis without using data with low measurement reliability or without giving priority to the data. When the reliability of a part or all of the measurement data is 1 or less, the measurement accuracy is very low, and therefore the measurement data cannot be transmitted and the measurement data need not be transmitted to the server 12.

  It is also possible to correct the detection data of the odorous gas sensor 26 and the hydrogen gas sensor 24 based on the measurement reliability calculated in this way. Specifically, when the measurement reliability is high, the actual detection value is used, but when the measurement reliability is low, the detection value is corrected to a value close to the past detection value. As an example, when analyzing the physical condition of the subject-side device 10 based on the detection data of defecation gas accompanying the first excretion act, a new detection is made so as to approach the past measurement data recorded in the storage device of the remote controller 8. A case of correcting the detected value will be described. As described above, the reliability associated with the first excretion act was calculated to be 2.84.

  The data analysis device 60 determines the correction amount of the measurement value based on the reliability thus calculated. FIG. 17 is a diagram showing a correction table showing the relationship between the reliability recorded in the data analysis device and the correction rate of the measured value. As shown in the figure, for example, in the present embodiment, when the reliability is 1 or less, the measurement data cannot be used because the reliability of the detection data is too low. That is, the physical condition is not analyzed based on the detection data in the period when the reliability is equal to or lower than the predetermined value, but the analysis is performed based on only the detection data whose reliability is higher than the predetermined value, and the analysis result is displayed on the display device 68. If the reliability is higher than 1 and equal to or lower than 2, correction is performed to bring the measured value closer to the past history side by 20%. If the reliability of the measured value is more than 2 and 3 or less, the measured value is corrected to be closer to the past history side by 15%. When the reliability is higher than 3 and equal to or lower than 4, correction is performed to bring the measured value closer to the past history side by 10%. If the reliability is higher than 4 and equal to or lower than 5, correction is performed to bring the measured value closer to the past history side by 5%. If the measured value is larger than 5, the measured value is used without correction.

  In the above example, the reliability associated with the first excretion act is 2.84. Therefore, as described with reference to FIG. 7A, correction is performed so that the plot point of the latest data is closer to the past measurement value by 15%, and the data is displayed together with the past data.

  The correction based on such reliability may be performed on the server 12 side. When the physical condition is analyzed on the server 12 side, for example, during the defecation period for one time, the detected value of odorous gas and the detected value of hydrogen gas of excretion with reliability higher than a predetermined value are totaled. The physical condition may be analyzed based on the totaled data. The detection data stored in the storage device of the remote controller 8 does not necessarily have to be corrected based on the measurement reliability, and the corrected detection data may be recorded.

  The correction table is not limited to the subject-attached offensive odor gas noise correction table, the temperature correction table, and the humidity correction table described above. 18 to 29 are diagrams showing examples of the correction table.

  For example, when there is odorous noise (environmental noise) other than defecation gas such as fragrance in the toilet room, the odorous gas sensor 26 may detect the odorous noise, and the accuracy of measurement may decrease. Therefore, the data analysis device 60 corrects the reliability in order to evaluate the influence of environmental noise. Note that the noise amount of such environmental noise can be evaluated based on the detection data by the odorous gas sensor 26 before the entrance of the subject is detected by the entrance detection sensor 34, for example. FIG. 18 is a diagram showing an environmental noise correction table. As shown in the figure, the environmental noise correction value is 1 when the noise amount of the environmental noise is smaller than a predetermined value, and is corrected to lower the reliability value as the noise amount of the environmental noise becomes larger than the predetermined value. Also reduce the coefficient. When the amount of environmental noise is equal to or larger than the measurable upper limit value, the measurement is impossible. Since the environmental noise correction value affects the entire defecation period, it may be corrected entirely.

  In addition, for example, when using a spray type fragrance, when the detection data of the odorous gas sensor 26 is largely changed when setting the reference value, or when the reference value set when estimating the gas amount If the slope is large, the accuracy of the estimated gas amount will be low. Therefore, the data analysis device 60 refers to the reference value stability correction table, and corrects the reliability in order to evaluate the influence of such a defective state of the reference value stability (referred to as reference value stability failure). The reference value stability can be evaluated based on, for example, the slope of the reference value with respect to the time axis during the non-fecal period, or the magnitude of fluctuation in the detection value of the odorous gas sensor 26 when setting the reference value. FIG. 19 is a diagram showing a reference value stability correction table. As shown in the figure, the reference value stability noise correction value is 1 when the reference value stability defect is small, and decreases as the reference value stability defect increases. When the reference value stability defect is equal to or more than a predetermined value, the measurement is impossible. Since the reference value is set for each excretion act in estimating the gas amount, a correction value only for a period corresponding to each excretion act, that is, a partial correction is performed.

  Further, for example, when the toilet seat is washed with the disinfection sheet, the odorous gas sensor 26 detects components such as alcohol contained in the disinfection sheet. As for the influence of the components such as alcohol contained in the disinfection sheet, a large value is detected by the odorous gas sensor 26 immediately after using the disinfection sheet, but since alcohol is highly volatile, it is odorous in a short period of time. The value detected by the gas sensor 26 becomes low. Therefore, the data analysis device 60 refers to the sterilization toilet seat cleaning correction table and corrects the reliability according to the effect of toilet seat sterilization. The use of the sterilization sheet may be detected by the odorous gas sensor 26, for example, after the entrance detection sensor 34 detects that the subject has entered the room and before the seating detection sensor 36 detects that the subject is seated. It can be detected by detecting that the data fluctuates more than a predetermined value. FIG. 20 is a diagram showing a disinfection toilet seat cleaning correction table. When it is detected that the disinfection sheet is used in this way, measurement is not possible for a predetermined period from the detection of the disinfection sheet (correction value 0), and the correction value for the period thereafter is from 1 or less. Increases to 1 over time. Since the effect of the disinfection sheet changes with time as described above, it will be partially corrected.

  Further, since the amount of odorous gas contained in the defecation gas is small, the more accurate the odorous gas discharged during the defecation period, the more accurate the analysis of the physical condition can be performed. Therefore, the data analysis device 60 refers to the defecation gas total amount correction value table and corrects the reliability based on the total amount of the odorous gas. The total amount of defecation gas can be evaluated by the total amount of gas estimated based on the detection data of the odorous gas sensor during the defecation period. FIG. 21 is a diagram showing a table for correcting the total amount of defecation gas. As shown in the figure, when the total defecation gas amount is equal to or more than a predetermined value, the total defecation amount correction value is determined to be unmeasurable (correction value 0) due to some problem such as spraying an aroma spray during the measurement, When the total amount of defecation gas is less than or equal to a predetermined value, the amount of defecation gas is too small to perform accurate measurement, and the measurement is disabled (correction value 0). Within a range where it is not determined that measurement is impossible (correction value 0), the correction value is set to 1 when the total defecation gas amount is large, and the correction value decreases as the total defecation gas amount decreases. Note that the total amount of defecation gas correction is set because the correction value is set based on the total amount of defecation gas during the entire defecation period.

  Moreover, since a large amount of defecation gas is released into the bowl when the fart is performed compared to when the defecation is performed, the defecation gas caused by the fart is suitable for analyzing the physical condition. Therefore, when the fart by the subject is detected, the data analysis device 60 refers to the fart correction value table and corrects the reliability during the fart period based on the amount of defecation gas included in the fart. To do. Regarding the fart action, when it is detected that the difference between the detection value of the odorous gas sensor 26 and the reference value has rapidly increased at a change rate of a predetermined value or more after the seating detection sensor 36 detects the seating. In addition, it can be determined that the fart action has been performed. Further, the period from the time when the above difference sharply increases to the time when the detection value of the gas sensor 26 returns to the reference value again may be set as the fart period. In order to detect that the fart action has been performed more accurately, the detection data of the odorous gas sensor 26 rapidly increases at a rate of change of a predetermined value or more, and the stool is put in the bowl by the water sealing amount sensor or the like. It can be detected that it has not been discharged. FIG. 22 is a diagram showing a fart correction value table. As shown in the figure, in the fart correction value table, the correction value is 1 when the amount of the fart gas (the amount of defecation gas detected by the odorous gas sensor) is small, and the fart gas amount increases. The correction value may be set to increase.

  In addition, when the amount of feces in each excretion act is large, the amount of defecation gas is large, and a more accurate physical condition analysis can be performed. The amount is small, and the accuracy of physical condition analysis is low. Therefore, the data analysis device 60 refers to the stool volume correction value table and corrects the reliability based on the stool volume at each excretion act. The stool volume can be evaluated by, for example, a water sealing amount sensor (stool volume measuring device) that detects a change in the water sealing amount of the defecation/urination detecting sensor 38. FIG. 23 is a diagram showing a stool volume correction value table. As shown in the figure, when the stool volume is less than or equal to a predetermined value, the stool volume and the defecation gas volume are very small, and an accurate analysis cannot be performed, so that the measurement is impossible. When the stool volume exceeds the predetermined value, the correction value gradually increases from a value less than 1 to a value exceeding 1 as the stool volume increases. Since the stool volume is determined for each excretion act, the stool volume correction value is a partial correction.

  Further, for example, when the stool has diarrhea, the release time is short and the sensor cannot sufficiently detect the defecation gas. Further, if the stool after defecation floats in the sealed water, the defecation gas is released from the stool floating in the sealed water, and the accuracy of detecting the defecation gas deteriorates. Therefore, the data analysis device 60 refers to the stool type correction table and corrects the reliability according to the stool type of each excretion act. Note that the type of stool can be detected based on the detection results of the stool state detection device using a CCD of the stool/urine detection sensor 38, a microwave sensor, or the like. The floating of feces can be detected by installing a CCD, a microwave sensor, or the like in the bowl as a floating detection device. FIG. 24 is a diagram showing a flight type correction value table. As shown in the figure, in the case of diarrhea stool, the measurement is not possible (correction value 0), and in the case of floating stool, the correction value for excretion thereafter is set to a value less than 1 When is detected, the correction value is set to 1. Since the stool type is determined for each excretion act, the stool type correction value is a partial correction.

  In addition, a healthy person usually defecates once a day. On the other hand, if the gastrointestinal condition is deteriorated due to food poisoning or the like, defecation may occur many times a day. In such a case, even if defecation is performed, the amount of defecation gas released during defecation will be small. Further, when the frequency of defecation decreases due to constipation or the like, the defecation gas amount increases due to a longer generation time of the odorous component, an increase in the stool amount, and the like. If the defecation interval becomes too large, the accuracy of physical condition analysis will decrease. Therefore, the data analysis device 60 refers to the defecation interval correction table and corrects the reliability based on the defecation interval. The defecation interval can be determined based on the date and time of the previous defecation stored by the data analysis device 60 and the defecation history information input in the measurement start preparation step S2. FIG. 25 is a diagram showing a defecation interval correction value table. As shown in the figure, when the defecation interval is extremely short, the correction value is set to a value much lower than 1, and when the defecation interval is about one day, the correction value is set to 1 and the defecation interval is 2 The correction value is set to a value lower than 1 when it is about a day, and the correction value is set to a value extremely lower than 1 when the defecation interval is 4 days or more. Note that the defecation interval correction value is an overall correction.

  In the determination of the physical condition based on the defecation gas, for example, when the gastrointestinal condition is deteriorated due to the fact that the patient has been over-drinking and eating excessively the previous day, the physical condition is determined to be worse than the original physical condition. Therefore, the analysis results of the physical condition vary depending on the daily life. Therefore, for example, at the time when the analysis of the physical condition by the biological information measuring system of the present embodiment is started, if the days when the physical condition is bad due to heavy drinking and eating accidentally overlap, the analysis result of the bad physical condition is displayed even if the history is displayed. Only the information will be displayed, and it may not be possible to accurately determine the disease at medical institutions. Therefore, the data analysis device 60 refers to the data storage amount correction table and corrects the reliability according to the number of past measurement data stored in the subject side device. FIG. 26 is a diagram showing a data storage amount correction table. As shown in the figure, when the number of accumulated data is less than 5, diagnosis is not possible (correction value 0), and when the number of accumulated data is 5 times or more and less than 10 times, the correction value is 1 If the number of accumulated data is 10 times or more and less than 30 times, the correction value is set to a low value of less than 1, and if the accumulated data number is 30 times or more, the correction is performed. The value is 1. The subject-side device according to the present embodiment is not a device for diagnosing cancer, but is a device intended to make the subject recognize that the cancer risk is increasing due to a change in physical condition and improve the life. For this reason, the accuracy of one measurement is not high, and the change history is the value of this device. Therefore, it is desirable to take such a measure to prevent unnecessary psychological burden.

  When the filter 72 installed in the duct 18a is clogged, the amount of air sucked into the duct 18a is reduced. On the other hand, if the air volume of the gas sent to the odorous gas sensor 26 or the hydrogen gas sensor 24 changes, the detection data of the odorous gas sensor 26 or the hydrogen gas sensor 24 will change according to an air volume. Further, when the wind velocity of the gas sent to the odorous gas sensor 26 or the hydrogen gas sensor 24 is high, the time during which the gas is in contact with the sensor is short and the detection unit of the sensor does not sufficiently react. Therefore, it is desirable that the amount of air sent to the odorous gas sensor 26 and the hydrogen gas sensor 24 be constant. Therefore, the data analysis device 60 refers to the air volume correction value table and corrects the reliability according to the air volume (air velocity) of the gas sent to the odorous gas sensor 26 or the hydrogen gas sensor 24. The gas flow rate can be estimated based on, for example, the current and voltage of the suction fan 18c provided in the deodorizing device. FIG. 27 is a diagram showing an air volume correction value table. As shown in the figure, in the air volume correction table, when the air volume is below the measurable lower limit value and above the measurable upper limit value, measurement is not possible (correction value 0), and within the optimum air volume range, the correction value is 1 It is set to a value larger than the above, and is set to a value close to 1 in other measurable ranges. In the present embodiment, the influence of the decrease in air volume due to clogging has a larger effect on the sensor detection sensitivity than in the case of a large air volume, so the correction value in a range higher than the optimum range within the measurable range is: The correction value in the lower range than the optimum range is set low. Note that the air volume during measurement does not change significantly, so it is an overall correction.

Like the hydrogen gas, the defecation gas contains CO ₂ gas as a health-related gas. Therefore, when a large amount of CO ₂ is detected by the CO ₂ gas sensor, the defecation gas is reliably detected by the sensor device. Therefore, the data analysis device 60 refers to the CO ₂ correction table and corrects the reliability based on the CO ₂ detection data detected by the carbon dioxide sensor 28. FIG. 28 is a diagram showing a CO ₂ correction table. As shown in the figure, in the CO ₂ correction table, when the detected amount of CO ₂ is smaller than a predetermined value, the correction value is set to 1, and when the detected amount of CO ₂ is equal to or larger than the predetermined value, the correction value is increased. The correction value is increased. The CO ₂ correction value is a partial correction because it can be calculated for each excretion act. As described above, in the present embodiment, the detected hydrogen gas is corrected based on the CO ₂ gas amount, and therefore the health system gas is evaluated using hydrogen gas and CO ₂ gas.
Further, when the physical condition is analyzed using the detection data of the CO ₂ gas sensor as the detection data of the health system gas, the correction value becomes higher as the detection value detected by the hydrogen gas sensor 24 becomes higher instead of the CO ₂ correction table. It is sufficient to use an H ₂ correction table that raises the value.

  Like the hydrogen gas, the defecation gas contains methane as a health-related gas. Therefore, for example, a methane gas sensor that strongly reacts with methane gas is installed in the duct 18a of the deodorizing device, and when a large amount of methane is detected by this methane gas sensor, a large amount of defecation gas is released. Therefore, the data analysis device 60 refers to the methane gas correction table and corrects the reliability based on the detected amount of methane gas detected by the methane gas sensor. FIG. 29 is a diagram showing a methane gas correction table. As shown in the figure, in the methane gas correction table, when the detected amount of methane gas is smaller than a predetermined value, the correction value is set to 1, and when the detected amount of methane gas is greater than or equal to the predetermined value, the correction value increases as it increases. Is getting bigger. The methane gas correction value is a partial correction because it can be calculated for each excretion act.

In the present embodiment, the reliability is corrected to be high when the detected values of CO ₂ and methane are high, but the present invention is not limited to this, and when the detected values of CO ₂ and methane are high, hydrogen gas It is also possible to make a correction such that the detected value is increased.

  When cancer is present in the intestine, not only odorous gas but also hydrogen sulfide gas is included in the defecation gas. Therefore, for example, a hydrogen sulfide gas sensor that strongly reacts with hydrogen sulfide gas is installed in the duct 18a of the deodorizing device, and the reliability is determined based on the detection data of the hydrogen sulfide gas detected by the hydrogen sulfide gas sensor. to correct. FIG. 30 is a diagram showing a hydrogen sulfide gas correction table. As shown in the figure, in the hydrogen sulfide gas correction table, the correction value is set to 1 when the detected amount of sulfide gas is smaller than the predetermined value, and increased when the detected amount of hydrogen sulfide gas is equal to or larger than the predetermined value. The correction value is increased as it goes. The hydrogen sulfide gas correction value is a partial correction because it can be calculated for each excretion act. The reliability is calculated using part or all of the correction table described above.

Next, in the example described with reference to FIG. 9, the detailed description of the method for estimating the gas amount is omitted, and thus the description will be given here.
A semiconductor gas sensor or a solid electrolyte sensor is used as the odorous gas sensor 26 for measuring odorous gas. A gas sensor such as a semiconductor gas sensor, a solid electrolyte sensor, or a hydrogen gas sensor reacts not only with odorous gas but also with fragrance and alcohol contained in the disinfection sheet.

  That is, even when the subject is absent, environmental noise is included in the detection data of the gas sensor due to the influence of, for example, an aromatic and residual feces attached to the bowl of the toilet bowl. It should be noted that the effects of such a fragrance and residual feces adhering to the bowl of the toilet bowl do not change significantly with time.

  In addition, when the subject enters the toilet space, the detection value detected by the gas sensor slowly increases due to the body odor of the subject and the effects of offensive odor gas components adhering to the subject's body or clothes such as the perfume and hairdressing materials used. However, when the subject sits down, since the upper part of the bowl is covered with the subject and clothes, the data value detected by the gas sensor stabilizes or slowly increases.

  Also, if the subject cleans the toilet seat with the disinfection sheet, the amount of gas measured by the semiconductor gas sensor will rapidly increase at the moment when the disinfection sheet is used, but after sitting, that is, the disinfection sheet is used. After a while, the detection value measured by the gas sensor does not increase due to the influence of the disinfection sheet.

  That is, after the subject sits down, the detection value of the gas sensor may slowly increase due to the influence of the offensive odor gas adhering to the subject's body, but it does not increase rapidly.

  On the other hand, when the subject starts excretion, the gas sensor reacts to the odorous gas and hydrogen gas contained in the defecation gas at the time of each excretion, and the detection value of the gas sensor increases sharply and peaks. And then drop.

  Therefore, the inventors have found that the value detected by the gas sensor does not sharply increase after the subject has been seated on the toilet seat, and if the detected value is used as the reference value, the odorous gas or hydrogen gas contained in the defecation gas is Thought that it could be detected as a sharp increase from this standard value.

Therefore, in the present embodiment, as described with reference to FIG. 9, the data analysis device 60 has the excretion act after the time t ₂ when the seating detection sensor 36 detects that the subject is seated on the toilet seat 4. The detection data of the gas sensor in the non-excretion act period before the time t _{5 at} which is started is set as a reference value. Next, the data analysis device 60 sets the time point at which the change rate of the difference between the detection value of the gas sensor and the reference value at time t ₅ becomes equal to or greater than a predetermined positive value as the time point at which the excretion act is disclosed. Then, the data analysis device 60 time-integrates the difference between the detection value of the gas sensor and the reference value during the excretion act from the start point to the end point of the excretion act (that is, from the reference value of the gas amount during the excretion act). Also, the area of the larger part is calculated) and this is estimated as the amount of defecation gas. The end point of the excretion may be the point at which the gas sensor detection value returns to the reference value again, or the point at which the rate of change in the difference between the gas sensor detection value and the reference value changes from positive to negative after the start point. ..

  Note that, like the odorous gas sensor 26, the hydrogen gas sensor 24 and the carbon dioxide sensor 28 may also be affected by an offensive noise other than the defecation gas. Therefore, when estimating the gas amounts of the hydrogen gas and the carbon dioxide gas based on the detection data of the hydrogen gas sensor 24 and the carbon dioxide sensor 28, it may be performed in the same manner as the defecation gas.

The method of estimating the gas amount is not limited to the above method. Hereinafter, a method of estimating the gas amount in the biological information measuring system according to the second embodiment will be described. The second embodiment differs from the first embodiment only in the method of estimating the gas amount.
Also in the system of this embodiment, as in the first embodiment, a semiconductor gas sensor or a solid electrolyte sensor is used as the odorous gas sensor 26 for measuring odorous gas. The semiconductor gas sensor or the solid electrolyte sensor has a low sensitivity because it measures the gas amount by detecting the electric resistance of the heated detector. Further, the hydrogen gas sensor 24 also has low sensitivity like the semiconductor gas sensor. When using a gas sensor having such a low sensitivity, the following problems occur. The following problems are not specific to the semiconductor gas sensor, and are the same for the solid electrolyte sensor and the hydrogen gas sensor.

  For example, as shown in FIG. 31, a semiconductor gas sensor is used as the odorous gas sensor 26 for each of the conditions S1, S2, and S3 in which the total discharge amount of the defecation gas is constant but the discharge time and the discharge amount per time are different. Consider the case where an odorous gas is detected. FIG. 32 is a diagram showing the detection waveform of the gas sensor when the ejection time and the ejection amount per hour are changed, and FIG. 33 shows the gas amount calculated based on the detection waveform of the gas sensor. Note that S1′, S2′, and S3′ in FIGS. 32 and 33 correspond to S1, S2, and S3 in FIG. 31, respectively.

  As shown in FIG. 32, even if the total gas discharge amount of the defecation gas is constant, if the discharge time is different, the gas discharge waveform will not converge unless the same time is taken due to the time constant of the gas sensor. Therefore, the inventors paid attention to the inclination at the time of discharging gas. FIG. 34 is a diagram showing the initial part of the detection waveform of the gas sensor shown in FIG. 32 with the time axis enlarged. As shown in the figure, when the discharge amount (discharge density) per time is different, the slope from the discharge start to the peak value and the time until the peak value is reached are different. The larger the discharge amount (discharge density) per time, the larger the slope to the peak value, and the longer the gas discharge time, the longer the arrival time to the peak value. Further, FIG. 35 is a graph showing the relationship between the discharge amount (discharge density) per unit time and the rising slope of the detection data waveform detected by the sensor. As shown in the figure, it can be said that the discharge amount (discharge concentration) per unit time and the slope of the rising edge of the waveform detected by the semiconductor gas sensor have a substantially proportional relationship.

  The inventors have found that the inclination of the waveform detected by the semiconductor gas sensor described above corresponds to the discharge amount (discharge concentration) of the discharge gas per hour, and the arrival time to the peak of the waveform detected by the semiconductor gas sensor corresponds to the discharge time. Based on this, it was decided to estimate the gas amount based on the product of the slope of the detection waveform of the semiconductor gas sensor and the arrival time to the peak (gas sensor waveform area). Note that, in FIG. 36, the product of the slope of the detection waveform of the semiconductor gas sensor and the arrival time to the peak for each condition S1, S2, and S3 in which the discharge time and the discharge amount (discharge density) per hour are different ( The gas amount estimated based on the gas sensor waveform area) is shown. As shown in the figure, the gas amounts S1″, S2″, and S3″ estimated based on the product of the slope of the gas amount waveform and the arrival time to the peak are the same amount. It can be seen that it is possible to accurately estimate the gas amount based on the slope and the arrival time to the peak.

  Therefore, in the present embodiment, similarly to the above-described first embodiment, the detection data of the odorous gas sensor 26 after the time when the sitting of the subject is detected by the sitting detection sensor 36 and before the excretion act is started. Based on this, set the reference value. Then, as shown in FIG. 10A, when the rate of change in the difference between the detection value measured by the odorous gas sensor 26 and the reference value exceeds a preset start threshold value, the defecation gas amount is estimated. It is set as the starting time point (that is, the starting time point of excretion). Next, as shown in FIG. 10A, when the rate of change in the difference between the detection data detected by the odorous gas sensor 26 and the reference value becomes negative (that is, the peak of the detection data of the odorous gas sensor 26). Is set as the end point of estimation of the defecation gas amount (that is, the end point of the excretion act).

  Next, the data analysis device 60 calculates the change rate of the difference between the detection data and the reference value from the start point to the end point of the excretion act. Further, the data analysis device 60 calculates the defecation gas discharge time from the start point to the end point of the excretion act. Then, the data analysis device 60 integrates the change rate of the difference between the detection data and the reference value from the start point to the end point of the excretion act and the defecation gas discharge time, and estimates this integrated value as the gas amount. The estimation of the hydrogen gas amount based on the detection data of the hydrogen gas sensor 24 and the estimation of the carbon dioxide gas amount based on the detection data of the carbon dioxide sensor 28 can be similarly performed. According to the method for estimating the gas amount described above, the influence of the time constant of the gas sensor can be eliminated and the defecation gas amount can be estimated more accurately.

  Further, the inventors conducted a study on the relationship between the discharge amount of defecation gas per hour and the discharge time, and found that there is little individual difference in the relationship between the discharge amount and the discharge time. That is, when the discharge amount per hour of the defecation gas is large, the discharge time is a relatively short fixed time regardless of the subject, and when the discharge amount per hour of the discharge gas of the defecation gas is small, The discharge time is long and constant regardless of the subject. For this reason, the inventors have determined the discharge time of the defecation gas (odorous gas) based on the discharge amount of the odorous gas in the defecation gas per hour (change rate of the detection value detected by the odorous gas sensor 26). Thought it can be estimated. In addition, similarly to this, the defecation gas (hydrogen gas and carbon dioxide) based on the discharge amount of hydrogen gas and carbon dioxide per hour (change rate of detection values detected by the hydrogen gas sensor 24 and the carbon dioxide sensor 28). ) Of the discharge time can be estimated. In the present embodiment, the area is estimated so as to obtain the correlation between the amount of the healthy system gas and the amount of the odorous gas, but there is a correlation similarly only between the concentration of the healthy system gas and the odorous gas, and the same. Since such a result is obtained, the concentration may be obtained from the slope of the measurement value of each sensor. In this case, the area can no longer be estimated, so that the measurement can be made simpler.

  Hereinafter, a method of estimating the gas amount in the biological information measuring system according to the third embodiment based on the above knowledge will be described. The third embodiment is different from the first and second embodiments only in the method of estimating the gas amount. In the data analysis device 60, in addition to the start threshold of the change rate of the difference described in the above embodiment, change rate-discharge period data regarding the correspondence relationship between the change rate of the difference and the discharge time of gas is set. There is.

  The reference value is set based on the detection data of the odorous gas sensor 26 after the time when the sitting detection sensor 36 detects the sitting of the subject and before the start of excretion. The time point when the rate of change in the difference between the detection value measured by the odorous gas sensor 26 and the reference value exceeds the preset start threshold value is set as the start time point for estimating the defecation gas amount (that is, the start time point for excretion). Set. Then, the data analysis device 60 refers to the change rate-ejection period data, and acquires the ejection period data corresponding to the change rate of the difference between the detection value at the start point and the reference value. Then, the data analysis device 60 integrates the change rate of the difference between the detection data and the reference value at the start point of the excretion act and the discharge time, and estimates this integrated value as the gas amount. The estimation of the hydrogen gas amount based on the detection data of the hydrogen gas sensor 24 and the estimation of the carbon dioxide gas amount based on the detection data of the carbon dioxide sensor 28 can be similarly performed. The method of estimating the gas amount described above can also eliminate the influence of the time constant of the gas sensor and more accurately estimate the defecation gas amount. In addition, in the method of estimating the gas amount in each of the above-described embodiments, the case where the semiconductor gas sensor is used as the odorous gas sensor 26 has been described, but the gas amount is estimated even when the solid electrolyte sensor is used instead. It can be carried out. In the above embodiment, the data analysis device 60 obtains the change rate of the difference and refers to the change rate-ejection period data to obtain the ejection period data corresponding to the change rate of the difference between the detected value at the start point and the reference value. Although the gas amount was acquired and the gas amount was estimated based on the change rate and the discharge period, the present invention is not limited to this. For example, the change rate-gas amount data in which the change rate of the difference is associated with the gas amount is stored in advance, the change rate of the difference is obtained, and the gas amount is calculated by referring to the change rate-gas amount data. It may be estimated directly.

  In the biological information measuring system according to the first embodiment described with reference to FIG. 1, the measuring device 6 is incorporated in the toilet seat 4 placed on the flush toilet 2 installed in the toilet room R. However, in the biological information measuring system of the present invention, the measuring device does not necessarily have to be incorporated inside the toilet seat.

  FIG. 37(a) is a diagram showing a state in which the subject side device in the biological information measuring system according to the fourth embodiment is attached to a flush toilet installed in the toilet room, and FIG. 37(b) is the same diagram ( It is a perspective view which shows the measuring device of the test subject side apparatus shown to a). Note that the fourth embodiment differs from the first embodiment only in the configuration of the subject-side device. As shown in FIG. 37A, the biological information measuring system 101 of the present embodiment has the same configuration as that of the first embodiment, but only the configuration of the measuring device 106 of the subject-side device 110 is different. The measuring device 106 of this embodiment is configured separately from the toilet seat 104.

  As shown in FIG. 37( b ), the measuring device 106 includes a device main body 180, a duct 118 a attached to the upper surface of the device main body 180 so as to extend in the lateral direction, and a distal end portion of the duct 118 a bent downward. A power cord 182 connected to the body 180 is included. As shown in FIG. 37(a), the measuring device 106 is fixed in a state where the tip of the duct 118a is located inside the bowl by hooking the tip of the duct 118a on the side wall of the bowl of the flush toilet 2. ..

  As in the first embodiment, the device main body 180 includes a hydrogen gas sensor, an odorous gas sensor, a carbon dioxide sensor, a humidity sensor, a temperature sensor, an entrance detection sensor, a seating detection sensor, and a defecation/urination detection sensor. And a suction device, a sensor heating heater, and a transceiver. The gas sucked from the duct 118a is deodorized and is discharged from a deodorizing air outlet provided on the bottom surface of the apparatus body 180. A hydrogen gas sensor, an odorous gas sensor, a carbon dioxide sensor, a humidity sensor, a temperature sensor, a sensor heating heater, and a fan are provided in the duct 118a. The arrangement of the sensors in the duct 118a is the same as that in the first embodiment, and thus the description thereof is omitted. With such a configuration, the odorous gas sensor, the hydrogen gas sensor, and the carbon dioxide sensor also change the gas amounts of the odorous gas, hydrogen gas, and carbon dioxide contained in the defecation gas by the measuring device 106 of the present embodiment. It is possible to obtain the corresponding detection data.

  The toilet seat 104 used with the measuring device 106 of the present embodiment includes a toilet lid opening/closing device, a nozzle driving device, a nozzle cleaning device, a toilet cleaning device, and a toilet sterilizing device. It is desirable to use a toilet seat with a cleaning function that can communicate with. By using the measuring device 106 together with such a toilet seat, it becomes possible to perform various cleaning and sterilization operations when an offensive odor gas is detected.

  Further, in the first embodiment, as shown in FIG. 3, in the gas detection device 20, the hydrogen gas sensor 24 is provided on the downstream side of the deodorizing filter 78, but such a configuration is not necessarily required. FIG. 38 is a diagram showing the configuration of the gas detection device in the biological information measurement system of the fifth embodiment. The fifth embodiment is different from the first embodiment only in the configuration of the gas detection device. As shown in the figure, in the present embodiment, the gas detection device 120 is different from the embodiment shown in FIG. 3 in the arrangement of the hydrogen gas sensor 24. In the present embodiment, the hydrogen gas sensor 24 is provided in the intake passage 18b downstream of the deodorizing filter 78. With such a configuration, even when a sensor that reacts not only to hydrogen gas but also to odorous gas is used as the hydrogen gas sensor 24, the influence of the odorous gas can be obtained from the data output by the hydrogen gas sensor 24. It can be removed.

  In addition, in the first embodiment, by subtracting the detection value detected by the hydrogen gas sensor 24 from the detection value detected by the odorous gas sensor 26, the influence of hydrogen gas is separated to calculate the detection value of odorous gas. However, the present invention is not limited to this. For example, the influence of hydrogen gas can be separated by shifting the arrival times of hydrogen gas and odorous gas to the odorous gas sensor 26 as described below. ..

  FIG. 39 is a diagram showing the configuration of the gas detection device of the sixth embodiment configured to separate the influence of hydrogen gas by shifting the arrival times of hydrogen gas and odorous gas to the odorous gas sensor. .. Note that the sixth embodiment differs from the first embodiment only in the configuration of the gas detection device. As shown in the figure, in the present embodiment, a branch path 283b that branches from the main path 283a of the intake passage 18b in the duct 18a is provided. In the first embodiment, the hydrogen gas sensor and the odorous gas sensor are separately provided, but in the present embodiment, one semiconductor gas sensor detects both hydrogen gas and odorous gas.

  Similar to the first embodiment, the intake passage 18b is provided with a filter 72, a deodorizing filter 78 provided downstream of the filter 72, and a suction fan 18c, and the branch path 283b is provided downstream of the filter 72. Is branched at. The filter 72 is a filter that does not have a deodorizing function, passes odorous gas and hydrogen, and blocks passage of foreign substances such as urine and cleaning agents. The deodorizing filter 78 is also a catalyst that adsorbs gas components such as odorous gas, as in the first embodiment.

  The defecation gas in the bowl 2a of the toilet bowl is sucked into the intake passage 18b by the suction fan 18c at a constant flow rate. The defecation gas sucked into the intake passage 18b passes through the filter 72 to remove foreign substances such as urine and cleaning agents, and the deodorizing filter 78 removes gas components such as odorous gas. It is returned to the bowl 2a.

  A flow path switching valve 284, a column 286, a semiconductor gas sensor 288, and a pump 290 are sequentially provided on the branch path 283b from the upstream side to the downstream side.

  The flow path switching valve 284 is opened only for a part of the time (very short time) during excretion, and a part of the defecation gas flowing in the intake passage 18b (for a part of the time during excretion of the subject). It is a valve for drawing into the branch path 283b. The flow path switching valve 284 is provided on the most upstream side of the branch path 283b.

  The column 286 is provided on the downstream side of the flow path switching valve 284, and is configured by filling a narrow pipe with, for example, a thin fiber material. The column 286 is a mechanism that causes a difference in gas passage time depending on the size (molecular weight) of the molecule according to the principle of gas chromatography.

  A sensor heating heater 54 is provided on the upstream side of the semiconductor gas sensor 288 to heat the detection portion of the semiconductor gas sensor 288 to a predetermined temperature and to remove the offensive odor gas component adhering to the semiconductor gas sensor 288.

  The flow path switching valve 284 causes a small amount of defecation gas that has passed through the filter 72 flowing through the intake passage 18b to flow into the branch path 283b. Then, when the pump 290 is driven, due to the principle of gas chromatography, hydrogen and odorous gas contained in the defecation gas pass through the column 286 for different times depending on the molecular weight and reach the semiconductor gas sensor 288. That is, hydrogen having a small molecular weight easily passes through the column 286 and reaches the semiconductor gas sensor 288 in a short time, and odorous gas having a large molecular weight hardly passes through the column 286, and it takes a longer time than hydrogen to reach the semiconductor gas sensor 288. To reach. The pump 290 is configured to suck the defecation gas at a constant flow rate.

FIG. 40 is a diagram showing detection waveforms detected by the semiconductor gas sensor of the gas detection device shown in FIG. 39. As shown in the figure, according to the configuration of the gas detection device 220 of the present embodiment, the semiconductor gas sensor 288 reacts with the hydrogen gas and the odorous gas in a temporally separated state. In particular, excretion is performed in a short time, and defecation gas containing hydrogen and odorous gas is also released only for a short time. Since the discharge of the defecation gas is short in this way, by providing the column 286 upstream of the semiconductor gas sensor 288, it is possible to shift the time until the hydrogen gas and the odorous gas reach the semiconductor gas sensor. The semiconductor gas sensor 288 can detect the amount of hydrogen gas and the amount of odorous gas. Again, the inventors have adopted a method of determining the physical condition by the correlation between health-related gas and odorous gas, without measuring the total amount of methyl mercaptan gas that is correlated with cancer. It is based on the technical knowledge that it was found that it is sufficient to measure gas for a specific period. If a reduction sensor is used, it is cheap and good, but it is difficult to separate a large amount of hydrogen contained in the stool gas. On the other hand, according to the present embodiment, since the measurement is performed only for a small amount of the specific period, hydrogen separation is facilitated and the practicality can be realized with an extremely inexpensive sensor.
In the present embodiment, the arrival times of hydrogen and odorous gas to the semiconductor gas sensor 288 are shifted by the column 286, but it goes without saying that the arrival times of methane contained in the defecation gas can also be shifted. .. This makes it possible to separate the influence of methane as well as hydrogen from the detection data detected by the semiconductor gas sensor.

According to the biological information measuring system of the embodiment of the present invention, when measuring the defecation gas for the flush toilet 2, it is the defecation period (time t _{2 to} t _{8 in} FIG. 9) or the defecation preparation period (time in FIG. 9). Whether it is t _{1 to} t ₂ ) is determined not by the elapsed time after entering the room (time t _{1 in} FIG. 9) but by the seating detection sensor 36, which is a seating detection sensor that directly detects defecation behavior. In addition, even when a change in the odorous gas (for example, a change in the odorous gas between times t _{1 and} t ₂ in FIG. 9) is detected during the defecation preparation period, the detected data is not The configuration is such that it is prohibited to use as data for analyzing the physical condition, and the physical condition measurement without erroneous measurement is realized.

Further, according to the biological information measuring system of the present embodiment, the odor is generated based on the odorous gas other than the defecation gas detected by the gas detection device 20 during the defecation preparation period (time t _{1 to} t _{2 in} FIG. 9). A reference value of odor noise (detection value of odorous gas at time t ₂ in FIG. 9) is set. Since the detection data after the time when the rate of change of the odorous noise from the reference value becomes equal to or greater than a positive predetermined value (for example, time t _{5 in} FIG. 9) is used for the physical condition analysis, the odor not caused by the defecation gas The effect of sexual gas can be effectively eliminated, and the excretion behavior by the subject can be accurately grasped.

  Further, according to the biological information measuring system of the present embodiment, the sensor provided in the local cleaning device (nozzle driving device 42) for detecting the seating of the subject on the toilet seat 4 also serves as the seating detection sensor 36. The sensor necessarily included in the local cleaning apparatus can be used, and the cost of the biological information measuring system can be suppressed. As a result, the biological information measuring system can be widely spread in general households.

Further, according to the biological information measuring system of the present embodiment, during standby (for example, S1 in FIG. 4), the temperature of the detection unit of the odorous gas sensor 26 is measured from the first temperature (for example, 400° C.). Since the second temperature is also set to a low second temperature (for example, 200° C.), the generation of sulfur dioxide can be effectively suppressed. Further, when the defecation preparation period is started (to time t ₁ in FIG. 9) is determined, the temperature of the detector is increased to the first temperature before the seating is detected by the seating detection sensor 36 Therefore, it becomes possible to measure the odorous gas before sitting. Thereby, it is possible to set the reference value of the odor noise while suppressing the generation of sulfur dioxide, and it is possible to achieve both the durability of the gas sensor and high measurement accuracy.

Furthermore, according to the biological information measuring system of the present embodiment, during the defecation period, the first excretion (the time t _{5 in} FIG. 12) at which the rate of change of the odorous noise from the reference value is equal to or more than a positive predetermined value first. Since the detection data concerning the initial excretion including ~t ₅ ') is used for the physical condition analysis, the physical condition of the subject can be accurately measured.

  Further, according to the biological information measuring system of the present embodiment, the physical condition of the subject is analyzed based on the first detection data regarding the odorous gas and the second detection data regarding the health-related gas (FIG. 6 ), so that it is multifaceted Subject's physical condition can be evaluated. In addition, since the physical condition of the subject is analyzed based on the odorous gas and the healthy gas related to the same initial excretion, the physical condition is analyzed using the correlation between the odorous gas contained in the defecation gas and the healthy gas. It is possible to measure the physical condition more accurately.

R Toilet room 1 Biological information measurement system according to the first embodiment of the present invention 2 Flush toilet 2a Bowl 4 Toilet seat 6 Measuring device 8 Remote controller 10 Subject side device 12 Server 14 Subject terminal 16 Medical institution terminal 18 Suction device 18a Duct 18b Inhalation Passage 18c Suction fan 20 Gas detection device 22 Control device 22a CPU
22b Storage device 24 Hydrogen gas sensor 26 Odorous gas sensor 28 Carbon dioxide sensor 30 Humidity sensor 32 Temperature sensor 34 Entry detection sensor 36 Seating detection sensor 38 Defecation/urination detection sensor 40 Toilet lid opening/closing device 42 Nozzle drive device 44 Nozzle cleaning device 46 Toilet bowl cleaning Equipment 48 Toilet bowl sterilization equipment 50 Air freshener sprayer 52 Deodorizing air supplier 54 Sensor heating heater 56 Transceiver 58 Duct cleaner 59 Humidity adjuster 60 Data analyzer 62 Subject identification device 64 Input device 66 Transceiver 68 Display device 70 Speaker 72 Filter 78 Deodorization filter 101 4th Embodiment Biological information measuring system 104 Toilet seat 106 Measuring device 118a Duct 180 Device body 182 Power cord 120 Gas detector 283a Main path 283b Branch path 284 Flow path switching valve 286 of 5th Embodiment Column 288 Semiconductor gas sensor 290 Pump

Claims (10)

A biological information measuring system for measuring the physical condition of a subject based on defecation gas discharged into the bowl of a flush toilet,
A suction device for sucking the gas in the bowl from which the defecation gas has been discharged by the subject,
Included in the gas sucked by this suction device, a gas detection device equipped with a gas sensor that reacts with odorous gases other than methyl mercaptan gas and methyl mercaptan gas that are odorous gases containing a sulfur component,
A control device for controlling the suction device and the gas detection device;
A data analysis device for analyzing a physical condition of a subject based on first detection data relating to the odorous gas in the defecation gas detected by the gas detection device,
An output device that outputs the analysis result by this data analysis device,
A defecation action determination sensor that directly detects whether the defecation period is after the subject sits down on the toilet seat, or whether it is the defecation preparation period during which defecation is being prepared before sitting on the toilet seat,
The data analysis device is
When the defecation action determination sensor detects that it is the defecation preparation period, even if the odorous gas is detected by the gas detection device, the odor detected by the gas detection device Physical condition analysis prohibiting means that does not adopt the detection data regarding gas as the first detection data for analyzing the physical condition of the subject;
When a predetermined rise of the odorous gas detected by the gas detection device is detected in a state where the defecation behavior determination sensor detects that the defecation period is in progress, after detecting the rise Physical condition analysis prohibition canceling means that employs the detected data as the first detected data in the physical condition analysis;
A biological information measuring system comprising:   The data analysis device further, in a state in which the defecation behavior determination sensor has detected that it is the defecation preparation period, to the odorous gas not caused by the defecation gas of the subject detected by the gas detection device. The odor noise reference value setting circuit for setting the odor noise reference value based on the odor noise reference value setting circuit, the physical condition analysis prohibition releasing means after the transition to the defecation period, the rate of change from the odor noise reference value is positive. The biological information measuring system according to claim 1, wherein the detection data after the time when the value becomes equal to or more than a predetermined value is used for the physical condition analysis as the first detection data.   The defecation behavior determination sensor is configured by a seating detection sensor that detects whether or not the subject is seated on the toilet seat, and the physical condition analysis prohibiting means indicates the time when the subject is detected to be seated by the seating detection sensor. The biological information measuring system according to claim 2, wherein the biological information measuring system is determined to be the starting point of the defecation period.   Furthermore, it has a local cleaning device, and this local cleaning device is equipped with a sensor for detecting the seating of the subject on the toilet seat in order to determine whether or not the cleaning water for local cleaning can be injected. The biological information measuring system according to claim 3, which is also used as a detection sensor.   Further, it has a urinal use preparation determination means for determining whether or not the subject has started the defecation preparation period, and the control device sets the temperature of the detection unit of the gas sensor to the first when measuring odorous gas. The temperature of the detection unit is set to a second temperature that is lower than the first temperature during standby, and the control device causes the toilet preparation preparation determination unit to prepare for the defecation. When it is determined that the period has started, the temperature of the detection unit is increased from the second temperature to the first temperature before the seating detection sensor detects seating, and the odor noise reference value is set. The biological information measuring system according to claim 3, wherein the setting circuit starts setting the reference value of the odorous noise.   The physical condition analysis prohibition canceling means, during the defecation period, the rate of change from the reference value of the odorous noise, the detection data regarding the initial excretion including the first excretion first becomes the positive predetermined value or more, The biological information measuring system according to claim 3, which is used for physical condition analysis as the first detection data.   The physical condition analysis prohibition releasing means is excreted when the rate of change of the odorous noise from the reference value becomes equal to or more than the positive predetermined value for the first time during the defecation period, and a predetermined condition after the excretion. 7. The biological information measuring system according to claim 6, wherein the detection data relating to excretion that conforms to the above are adopted as the first detection data in the physical condition analysis, and the other detection data relating to excretion during the defecation period are not adopted in the physical condition analysis.   The physical condition analysis prohibition releasing means has a gas amount of a predetermined amount or more, and excretes within a predetermined number of times determined in advance from the first excretion, or excretions performed within a predetermined time, under the predetermined conditions. The biological information measuring system according to claim 7, wherein the detected data is adopted for physical condition analysis as suitable excretion.   The physical condition analysis prohibition canceling means extracts only the detection data relating to excretion in which the rate of change of the odorous noise from the reference value becomes equal to or more than the positive predetermined value for the first time during the defecation period. 7. The biological information measuring system according to claim 6, which is used for physical condition analysis as a.   The gas detection device is configured to detect a health system gas including at least one of hydrogen gas, carbon dioxide gas, methane gas, and acetic acid gas contained in the defecation gas sucked by the suction device, and the data The analysis device is configured to analyze the physical condition of the subject based on the first detection data regarding the odorous gas and the second detection data regarding the health-related gas, and the physical condition analysis prohibition releasing means during the defecation period. 7. The biological information measuring system according to claim 6, wherein the first detection data and the second detection data regarding the same excretion in the initial stage in step 2 are used for physical condition analysis.