JP2017096890A - Biological information measurement system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a diagnosis system that achieves prevention against serious diseases such as cancer using measurement of defecation gas in households.SOLUTION: A biological information measurement system (1) according to the present invention comprises: a suction device (18) that sucks gases in a bowl; a gas detection device (20) having a gas sensor (26) that reacts to an odorous gas contained in the gases sucked; a control device (22); a data analyzer (60) that analyzes physical conditions of a subject on the basis of detection data; and an output device (68) that outputs the analysis result. The data analyzer acquires first detection data on an odorous gas contained in defecation gas during defecation by the subject and second detection data on an odorous gas attached to the subject detected by the gas detection device during preparation of the defecation. The data analyzer measures physical conditions of the subject on the basis of the first detection data and the second detection data.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a biological information measurement system, and more particularly to a biological information measurement system that measures the 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 advancement of medical technology, the mortality rate due to cancer has become extremely low due to the diagnostic technology for major diseases such as cancer and the technological evolution of cancer treatment itself. However, it is a burden for patients to go to the hospital to receive regular diagnosis for cancer prevention. For this reason, in reality, there are many patients who come to the hospital after realizing a poor physical condition, and unfortunately, there are still many people who get cancer. In addition, a practical device for suppressing the occurrence of cancer has not been developed yet, and in reality, it cannot be said to be sufficient for realizing cancer prevention.

  In view of such a situation, the present inventors have made a device that can more easily diagnose major illnesses such as cancer at home without going to the hospital, and can really prevent major illnesses or realize early treatment. He had a strong desire to manufacture the equipment required by the market, and he had been researching for a long time.

  Until now, the applicant has collected the defecation gas that is mounted on the toilet seat of a Western-style toilet and is discharged into the bowl when the subject defecates, and based on the concentration of carbon dioxide contained in the defecation gas, A device for obtaining the amount of excreted stool (see Patent Document 1) and a deodorizing device incorporated in the toilet seat of the flush toilet are sucked with a deodorizing device that is combined with the subject's stool, and the carbon dioxide concentration of the sucked gas is determined by carbon dioxide. An apparatus (see Patent Document 2) that estimates the intestinal state of a subject based on a gas sensor and based on the measured carbon dioxide concentration has been developed. However, these devices only estimate the current state of the intestine, and have not achieved the inventor's purpose of easily diagnosing a major disease such as cancer and grasping the risk status thereof. Furthermore, a fart detection device (Patent Document 3) is also known in which a gas sensor is disposed so as to come into contact with the air in the vicinity of a human excretion portion, and a fart is detected based on the peak value of the gas sensor output. In this fart detection device, the fart of the patient is collected by pulling out the tube from the excretion part in the diaper or underwear of the patient sleeping on the bed and sucking air with a suction pump. Furthermore, this fart detection device distinguishes farting from urination based on the half-value width of the peak of the gas sensor output, and the doctor confirms whether a fart has come out after cecal surgery or detects when to change diapers However, it does not achieve the purpose of the inventor. On the other hand, in Japanese Patent Application Laid-Open No. 2014-160049 (Patent Document 4), a sensor for measuring methyl mercaptan gas from a soot component released by a subject, a calculation unit for calculating a methyl mercaptan gas concentration obtained from the sensor, and a display A portable colorectal cancer risk measuring device for estimating the risk of developing colorectal cancer is known.

Japanese Laid-Open Patent Publication No. 9-43182 (Patent Document 5) describes a biological monitor device. In this living body monitor device, a gas sensor is attached to a T-band made of cloth so that the gas sensor is disposed in the vicinity of the anus, and a fart discharged 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 data stored in a memory is compared with past data, and a warning is displayed on a display device when there is an abnormality such as when the difference is large.
Japanese Patent No. 3525157 (Patent Document 6) describes an intestinal gas component measurement method. In this intestinal gas component measurement method, a sampling tube is arranged in the toilet seat portion of the toilet bowl. When the person to be measured turns on the main switch of the apparatus, the suction pump is operated and the gas near the anus is sucked. The indicator gas detector constantly measures the concentration of carbon dioxide in the sucked gas, and when the measured concentration rapidly increases, the control / arithmetic processing unit recognizes that intestinal gas has been diffused. When the intestinal gas is released, another suction pump begins to operate, and a portion of the sucked gas is taken into the sample metering tube. The taken sample is sent to the column to separate the gas components and to be ionized. It is also known that the ionization amount is converted into an electric signal and the concentration of the detection target gas component in the intestinal gas is measured.
Japanese Unexamined Patent Application Publication No. 2014-206945 (Patent Document 7) describes a health information utilization system. In this health information utilization system, personal health information related to health management input from a terminal device is stored separately in a plurality of data center databases, and the analysis server device reads and analyzes the personal health information. The big data creation server device searches for personal health information under specific conditions, and creates and stores big data. Health information utilization system allows health contents based on knowledge in specialized fields to be browsed on terminal devices, stores and manages personal health information in multiple data centers, and health judgment results obtained by automatically judging personal health information Or, the health determination result determined by the expert is browsed on the terminal. Such things are also known.

  In developing a device capable of diagnosing such 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 gas components in the intestine contained in a fart or defecation. ing. Specifically, colon cancer patients have more methyl mercaptan gas containing sulfur components in gas components in the intestine than healthy individuals.

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

  The gas component in the intestine is discharged as a fart or defecation gas together with the stool during defecation. Therefore, as described in the Nihon Keizai Shimbun on January 5, 2015, the inventors identified a fart discharged at the time of defecation and methyl mercaptan gas in the defecation gas as in the case of the above-mentioned Patent Document 4 and the like. I was able to detect colorectal cancer in the intestine by measuring the amount of gas. However, a measuring apparatus 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 it is very difficult to measure because it becomes a very small amount at the stage before cancer. At least such a gas analyzer that can measure accurately is used at home. The inventors faced the problem that it was not very realistic to install it in a toilet device and spread it as a consumer product, both in terms of cost and size.

  However, the inventors want to reduce the number of people who become seriously ill such as cancer. To that end, we continued research with the very strong desire that general consumers need to make a device that can be easily purchased and diagnosed easily at home, and finally found a technical solution for its realization. is there.

  The object of the present invention is to prevent general consumers from easily purchasing and measuring serious illnesses such as cancer by measuring fecal gas at home, or going to a hospital in a mild condition for treatment. It is to provide a highly practical diagnostic system that can be urged to be received and is truly required by the market.

  In order to solve the above-described problems, the present invention is a biological information measurement system for measuring the physical condition of a subject based on the defecation gas discharged into the bowl of the flush toilet, wherein the defecation gas is discharged by the subject. And a gas sensor that reacts to odorous gases other than methyl mercaptan gas and methyl mercaptan gas, which are odorous gases containing sulfur components contained in the gas sucked by the suction device. Gas detection device, a control device for controlling the suction device and the gas detection device, a data analysis device for analyzing the physical condition of the subject based on detection data detected by the gas detection device, and an analysis result by the data analysis device An output device for outputting the odor gas contained in the defecation gas during the defecation period of the subject. The first detection data detected by the gas detection device, and the second detection data obtained by detecting the odorous gas attached to the subject in the defecation preparation period before the defecation action is detected by the gas detection device, It is configured to measure the physical condition of the subject based on the first detection data and the second detection data.

  Conventionally, there has been no actual device for confirming whether a major illness such as cancer, or confirmation for the prevention of a major illness exists other than diagnosis at a hospital. On the other hand, according to the present invention, general consumers can easily purchase and measure at home. Furthermore, since the defecation gas discharged during defecation is measured, the subject does not have to bother to perform a new measurement act, and simply performing the defecation act normally can lead to serious diseases such as cancer. It is possible to prevent or to go to the hospital for treatment in a mild condition. As described above, according to the present invention, it is possible to realize an apparatus that is truly required from the market and to provide a highly practical diagnostic system.

  Here, before specifically explaining the effects of the present invention, a technical concept that enables a system that can be spread as a consumer product in a general household will be described. The key points lie in the idea of reversal and the knowledge of effective divestiture using the characteristics of major diseases such as cancer.

  Specifically, one of the key points of the system of the present invention is the idea of reversal that a device installed in each home does not diagnose a major illness such as cancer. In other words, the subject who is a general consumer who purchases the device does not want to know that he / she has cancer, but that the risk of cancer has increased at the stage before getting cancer (hereinafter this stage is referred to as non-disease). Really, I want to recognize and improve my future life so as not to get cancer. In other words, the device required for general households is thought to be valuable only in that a healthy person can accurately grasp cancer risk and improve physical condition so as not to get cancer.

  Next, one of the key points of the system of the present invention is a device for diagnosing a specific type of cancer such as a specific rectal cancer, or a device capable of diagnosing an increased risk of a specific type of cancer. It is in the dilemma that it is not. This is because the subject is not worried about a particular type of cancer, such as rectal cancer, but is worried about any cancer. Therefore, the inventors do not have a commercial value unless a specific type of cancer is diagnosed, and think that there is no need for accuracy to specify the type of cancer, and can specify the type of cancer. It was decided that such measurement accuracy was unnecessary.

Hereinafter, the specific effect of the system based on this invention constructed | assembled based on these knowledge and effective crevice is demonstrated.
In the present invention, because the subject's physical condition is analyzed by measuring the defecation gas discharged into the bowl of the toilet bowl, there is no need for the subject to bother to perform the measurement act, and the stool is simply performed normally. Diagnosis can be made only with this. In addition, since there is no hassle at all, the subject is not burdened, and measurement can be continued for a long period of time, so that information on changes in health status and a situation in which cancer risk is increased can be obtained with certainty.

Further, in the present invention, a sensor that reacts widely with odorous gases other than methyl mercaptan gas in the defecation gas is used without using a sensor that measures methyl mercaptan gas at a pinpoint. When a sensor that measures methyl mercaptan gas in a pinpoint manner is used, it can be reliably detected that there is a correlation between the amount of methyl mercaptan gas and colorectal cancer, and the risk of cancer has increased. Is definitely known from the amount. However, this increases the risk of cancer to some extent, and if the amount of methyl mercaptan gas does not increase, it cannot be determined that the risk of cancer is increased, and is not suitable for the present invention for the purpose of preventing cancer. I realized that.
On the other hand, in the case of a sensor that reacts widely with odorous gas, it can be detected not only from an increase in cancer risk but also from a poor physical condition. Specifically, in a state where the risk of cancer has increased, a very strong odorous gas containing a sulfur component such as methyl mercaptan gas or hydrogen sulfide increases. And if it is a sensor which reacts widely with odorous gas, such an increase in gas can be detected without fail. For this reason, even if a sensor that reacts widely with odorous gases other than methyl mercaptan gas in the defecation gas is used, it can be determined that the risk of cancer has increased. Thus, a sensor that also reacts widely with odorous gases functions in this respect in the same manner as a sensor that measures methyl mercaptan gas pinpoint.

Further, in the present invention, not only methyl mercaptan gas, but also a gas detection device that reacts to odorous gas in stool gas other than methyl mercaptan gas, only the amount of odorous gas in stool gas is known, The amount of methyl mercaptan gas cannot be measured, and the cancer state cannot be accurately identified. However, the inventors use a gas detection device that reacts not only with methyl mercaptan gas but also with odorous gas in defecation gas other than methyl mercaptan gas, so that healthy people have an increased risk of cancer. It has been found that it functions effectively as a device for preventing the risk of cancer and the risk of developing cancer. Specifically, a healthy person has a low total amount of odorous gases other than methyl mercaptan gas and methyl mercaptan gas. On the other hand, the total amount of odorous gases other than methyl mercaptan gas and methyl mercaptan gas temporarily increases due to deterioration of the intestinal environment, as well as cancer. Specifically, the deterioration of the intestinal environment is a deterioration of the intestinal environment due to factors such as excessive constipation, types of meals, lack of sleep, excessive drinking and overeating, excessive drinking, and excessive stress. However, all these factors are bad lifestyle habits. Cancer develops after bad lifestyle habits, but until now, even if the risk of cancer has risen, there is no way to recognize it, and as a matter of fact, many people now have a bad life with a good belief that they are all right Continuing customs.
As described above, when bad lifestyle habits as described above are performed, all or any of the odorous gases in the defecation gas such as methyl mercaptan, hydrogen sulfide, acetic acid, trimethylamine, and ammonia increases. In contrast, the present invention is based on detection data of a gas detection device that detects not only methyl mercaptan gas but also odorous gas in stool gas other than methyl mercaptan gas such as hydrogen sulfide, acetic acid, trimethylamine, and ammonia. Is being analyzed. For this reason, the analysis results based on the total amount of odorous gas in the defecation gas reflect the results of the subject's poor physical condition and bad lifestyle habits, and the analysis results are based on physical conditions and lifestyle habits that increase the risk of such cancer. It can be used as an index based on objective data for improving cancer, that is, as an effective index for maintaining health and reducing the risk of developing cancer. For the purpose of improving lifestyle and suppressing cancer risk It has been found that it is an excellent effect that works extremely effectively.
As described above, according to the present invention, methyl mercaptan gas and odorous gas other than methyl mercaptan gas are measured, so that the cancer risk is in an increased state, and such a state is continued for a long time. The measurement which can notify a test subject of the suitable alarm which will become cancer is attained. The inventors have found a suitable finding for the purpose of reducing the number of people who become cancerous by the so-called reversal idea.
Furthermore, according to the present invention, since a sensor that reacts widely with not only methyl mercaptan gas but also odorous gas other than methyl mercaptan gas is used, the apparatus can be manufactured at low cost and provided as a consumer product. It became possible. This makes it possible for the subject to easily diagnose at home, prevent a serious illness such as cancer from occurring, or to promptly go to the hospital and receive treatment in a mild condition. It was able to meet the requirements sufficiently.

  In the present invention using a sensor that reacts widely with odor components, the detection data includes odor gas components such as sweat and urine adhering to the subject, perfume, odor gas remaining in the toilet or toilet space attached to the toilet Influenced by fragrances and alcohol sanitizers. In particular, when the perfume or fragrance is strong, or the body or toilet space is unsanitary, the measurement accuracy may decrease. In addition, when using immediately after the defecation of another person, it is highly likely that off-flavor components such as defecation gas or adhering odor of the person who used before remain in the toilet bowl or toilet space. It is conceivable that measurement is affected even if it is not a space.

  Therefore, the present inventors have focused on a series of actions when the subject performs defecation, and succeeded in detecting defecation gas discharged from the subject even when odorous gas remains in the toilet space. Further, odorous gas adhering to the subject other than the defecation gas is a noise for the measurement of the defecation gas, but the present inventor excludes this noise based on the behavior of the subject. Succeeded. On the other hand, for the measurement of defecation gas, the odorous gas adhering to the subject who becomes noise includes information on the body odor of the subject. Here, the body odor of the subject may be generated by the subject's sweat or hygiene, but if he / she continues bad habits such as excessive drinking, hepatic diseases, urological diseases In this case, since the ammonia component and the like increase as body odor, the present inventors have found that this is an effective information source for analyzing the physical condition of the subject. That is, by continuously measuring the body odor of the subject, it is possible to analyze the risk for diseases such as the liver system and urinary system.

  According to the present invention configured as described above, the odorous gas during the defecation period of the subject is acquired as the first detection data, and the odorous gas during the defecation preparation period before the defecation action is started is second. Since it is acquired as detection data, the defecation gas and the odorous gas attached to the subject can be easily identified based on the behavior of the subject during the defecation. Further, since the physical condition of the subject is measured based on the first detection data and the second detection data acquired in this way, according to the present invention, defecation can be performed without increasing the number of measurement sensors and the measurement process. It is possible to simultaneously perform a physical condition analysis different from the physical condition analysis based on gas, and to analyze risks for more diseases.

  In the present invention, preferably, the data analysis device stores the first detection data and the second detection data independently, and causes the output device to output the changes over time independently.

  According to the present invention configured as described above, it is possible to analyze the risk of digestive system diseases such as colorectal cancer by physical condition analysis based on the first detection data, and by physical condition analysis based on the second detection data, The risk of liver diseases and the like can be analyzed. In addition, by independently outputting these temporal changes to the output device, it is possible to notify the risk without imposing an unnecessary psychological burden on the subject. In addition, by independently reporting the analysis result of the odorous gas attached to the subject based on the second detection data, the subject's awareness of hygiene increases, so the error factor for the measurement of defecation gas decreases, Measurement accuracy of defecation gas data can be increased.

  In the present invention, preferably, the temporal change of the first detection data and the temporal change of the second detection data are each independently used to evaluate different aspects of the health condition of the subject, and the output device is respectively Separately output the evaluation of.

  According to the present invention configured as described above, since different aspects of the health condition of the subject are independently evaluated by the temporal change of the first detection data and the second detection data, an unnecessary psychological burden is imposed on the subject. Can give the subject a recovery effort and motivation for medical examination.

  In the present invention, preferably, when analyzing the first detection data, the data analysis apparatus excludes the odorous gas corresponding to the second detection data as odorous gas noise caused by the subject.

  The odorous gas adhering to the subject is a noise for the measurement of the defecation gas, but the detection value of the defecation gas is superimposed on the detection value of the odorous gas adhering to the subject. According to the present invention configured as described above, since the odorous gas corresponding to the second detection data is excluded from the first detection data as odorous gas noise caused by the subject, the defecation gas is accurately measured. be able to.

  In the present invention, preferably, the data analysis device analyzes the physical condition of the increase in the first detection data from the value of the second detection data as an odorous gas based on the defecation gas of the subject.

  According to the present invention configured as described above, since an increase in the first detection data from the value of the second detection data is analyzed as an odorous gas based on the subject's defecation gas, simple data processing is possible. Defecation gas can be measured accurately.

  In the present invention, preferably, a first detection sensor for detecting entry into a room in which the flush toilet is installed or an approach of the subject to the flush toilet and a seating action of the flush toilet on the toilet seat are detected. The gas detection device is in a measurement standby state before entering or approaching the first detection sensor, while entering or approaching is detected by the first detection sensor. Thereafter, the second detection data is acquired until the gas detection device is set in the measurement state and the sitting behavior is detected by the second detection sensor. After the seating behavior is detected by the second detection sensor, the first detection is performed. Start data acquisition.

  According to the present invention configured as described above, the gas detection device is brought into the measurement state after the entrance or approach of the subject is detected, so that the first and second detection data can be obtained accurately. . Further, before entering or approaching the first detection sensor, the gas detection device is placed in a measurement standby state, so that the deterioration of the gas sensor built in the gas detection device can be prevented, and the service life of the gas detection device can be prevented. Can be extended. Further, by setting the measurement standby state, it is possible to suppress accumulation of sulfur components contained in the remaining odorous gas in the gas sensor and to reduce power consumption of the gas sensor.

  In the present invention, preferably, the gas detection device also detects the health 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 acquire the first detection data based on a temporal change in the correlation between the odorous gas and the health gas, and the second detection data is analyzed over time of the odorous gas. Analyze based on changes.

  According to the present invention configured as described above, the first detection data is analyzed based on the temporal change of the correlation between the odorous gas and the health gas, and the second detection data is based on the temporal change of the odorous gas. Therefore, the influence of measurement errors and the like in one measurement can be suppressed, and the physical condition of the subject can be accurately measured based on the stool gas and the odorous gas attached to the subject.

  In the present invention, it is preferable that the output device outputs the analysis result of the first detection data as a change with time of the correlation between the odorous gas and the health gas, and outputs the analysis result of the second detection data over time. It is configured to output as a change.

  According to the present invention configured as described above, the analysis result of the first detection data is output as a temporal change in the correlation between the odorous gas and the health gas, and the analysis result of the second detection data is output as the aging time of the odorous gas. Therefore, the test subject can accurately recognize a long-term change in his / her physical condition.

  In this invention, Preferably, an output device is comprised so that the analysis result of the 2nd detection data which detected the odorous gas adhering to a test subject may be output as what represents a test subject's body odor.

  The second detection data reflects the body odor of the subject and can be used not only to measure the physical condition but also to recognize the body odor of itself. According to the present invention configured as described above, since the analysis result of the second detection data is output as representing the body odor of the subject, the subject can use the output for daily body odor check. .

  According to the biological information measuring system of the present invention, general consumers can easily purchase and prevent serious diseases such as cancer by measuring defecation gas at home, or in a mild state hospital Therefore, it is possible to provide a highly practical biological information measurement system that is truly required by the market.

It is a figure which shows the state which attached the biological 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 biometric information measurement system of 1st Embodiment of this invention. It is a figure which shows the structure of the gas detection apparatus with which the biological information measurement system of 1st Embodiment of this invention is equipped. It is a figure explaining the flow of the physical condition measurement by the biometric information measurement system of 1st Embodiment of this invention. It is a figure which shows an example of the screen displayed on the display apparatus of the remote control with which the biometric information measurement system of 1st Embodiment of this invention is equipped. It is a figure which shows an example of the physical condition display table displayed on the display apparatus of the remote control with which the biometric information measurement system of 1st Embodiment of this invention is equipped. It is a figure which shows an example of the time-dependent change graph of test subject adhesion odorous gas displayed on the display apparatus of the remote control with which the biometric information measurement system of 1st Embodiment of this invention is 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 biometric information measurement system of 1st Embodiment of this invention. It is the graph which showed typically the detection signal by each sensor with which living body information measurement system 1 was provided in one defecation action of a subject. (A) It is a figure explaining discharge | emission amount estimation of the odorous gas when the reference value of residual gas is not constant, (b) is the detection value by the odorous gas sensor when a test subject uses an alcohol toilet seat sanitizer. It is a graph which shows an example. It is a figure which shows an example of the update of a diagnostic table. (A) is a figure which shows the state which attached the test subject side apparatus of the biological information measuring system by 2nd Embodiment of this invention to the flush toilet installed in the toilet room, (b) is the figure (a) It is a perspective view which shows the measuring apparatus of the test subject side apparatus shown to). It is a figure which shows the structure of the suction device with which the biometric information measurement system of 3rd Embodiment of this invention is equipped. It is a figure which shows the structure of the gas detection apparatus with which the biological information measurement system of 4th Embodiment of this invention is equipped. 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 health system gas and the odorous gas which are contained in the defecation gas of the healthy person below 60s, the healthy person of 60-70 generations, the patient of early cancer, and the patient of advanced cancer. . It is the figure which compared the gas amount of the hydrogen sulfide contained in defecation gas with 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 with 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 with 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 with 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 butyric acid gas contained in defecation gas with a healthy subject and a colon cancer patient.

Hereinafter, an embodiment of a biological information measurement system of the present invention will be described in detail with reference to the drawings.
Moreover, FIG. 1 is a figure which shows the state which attached the biological information measuring system by 1st Embodiment of this invention to the flush toilet installed in the toilet room. FIG. 2 is a block diagram showing a configuration of the biological information measurement system of the present embodiment. FIG. 3 is a diagram illustrating a configuration of a gas detection device provided in the biological information measurement system of the present embodiment.

  As shown in FIG. 1, the biological information measurement system 1 includes a measuring device 6 built in 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 an attached remote control 8. Furthermore, as shown in FIG. 2, the biological information measuring system 1 includes a server 12, a subject terminal 14 incorporating dedicated software in a smartphone, a medical institution terminal 16 installed in a medical institution such as a hospital, These perform part of the functions of the biological information measurement system 1 by exchanging data with the subject-side device 10. 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 measurement system 1 of the present embodiment, the physical condition state including the determination of cancer based on odorous gas containing sulfur component in the defecation gas released by the subject during defecation, particularly methyl mercaptan (CH ₃ SH) gas. Analyze. Furthermore, in the biological information measuring system 1 of the present embodiment, in addition to the odorous gas, the health-related gas is also measured, and the analysis accuracy of the physical condition is improved based on these correlations. The health gas is a gas derived from intestinal fermentation and increasing as the intestinal health level increases, and specifically, is a gas such as carbon dioxide, hydrogen, methane, short chain fatty acid (acetic acid) and the like. In the present embodiment, carbon dioxide gas and hydrogen gas that can maintain high reliability of the health index measurement are measured as the health gas because it is easy to measure and has a large amount. Here, each subject apparatus 10 is configured to display the analysis result during or immediately after the subject's stool. On the other hand, in the server 12, measurement results from a large number of subjects are accumulated, and a more detailed analysis is possible by comparison with other subjects. As described above, in the biological information measuring system 1 of the present embodiment, simple analysis is performed in the subject-side apparatus 10 installed in the toilet room R, and more detailed analysis is performed in the server 12.

Here, the measurement principle of the physical condition in the biological information measurement system 1 of the present embodiment will be described.
It is reported in the literature that odorous gas containing sulfur components such as methyl mercaptan and hydrogen sulfide is discharged simultaneously with defecation from affected areas when suffering from cancer of the digestive system, particularly colorectal cancer. The digestive organs are the esophagus, stomach, duodenum, small intestine, large intestine, liver, pancreas, and gallbladder. The large intestine can also be classified into the appendix, cecum, rectum, and colon. . Cancer has little change every day and progresses gradually. As cancer progresses, the amount of odorous gas containing sulfur components, particularly methyl mercaptan, increases. That is, when the amount of odorous gas containing a sulfur component increases, it can be determined that cancer is progressing. Furthermore, in recent years, the idea of “non-disease” has spread, and the idea of improving the physical condition and preventing the disease when the physical condition deteriorates before becoming a diseased condition has spread. For this reason, it is required to detect cancer, particularly advanced cancer such as colorectal cancer, and improve physical condition before becoming cancer.

  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, three Contains methyl sulfide. Among these, in order to determine a cancer disease, it is necessary to measure an odorous gas containing a sulfur-based component, particularly methyl mercaptan. Propionic acid, methyl disulfide, and trifluidized methyl contained in the defecation gas are very small amounts compared to methyl mercaptan, and can be ignored because they do not pose any problem for analysis of physical condition such as cancer determination. However, other gas components are not so small as 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 odorous gas containing a sulfur component is large and very expensive, it is difficult to configure it as a household device.

  In contrast, as a result of earnest research, the inventors have not only detected methyl mercaptan in the defecation gas, but by using a gas sensor that detects odorous gas including other odorous gas, it is cheaper. The idea was that it could 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 a sulfur-containing gas containing a sulfur component but also with other odorous gases as a sensor for detecting gas. It was.

  In a state where the risk of cancer is increased, a very strong odorous gas containing a sulfur component such as methyl mercaptan gas is increased. And if it is a sensor which reacts widely with odorous gas like a semiconductor gas sensor and a solid electrolyte sensor, such an increase in gas can be detected without fail. However, as will be described later, sensors that react widely with odorous gases such as semiconductor gas sensors and solid electrolyte sensors, such as hydrogen sulfide, methyl mercaptan, acetic acid, trimethylamine, and ammonia that increase when they become unwell due to bad lifestyles. Odor gas is also detected. However, cancer is a disease that progresses over a long period of several years, and in the case of cancer, a state in which a very strong odorous gas containing a sulfur component such as methyl mercaptan gas or hydrogen sulfide is strengthened. It will last for a long time. Therefore, even if a general-purpose semiconductor gas sensor or solid electrolyte sensor that reacts not only with sulfur-containing gases containing sulfur components but also with other odorous gases is used, Therefore, it can be determined that the risk of cancer is high and the risk of cancer is increasing.

  In addition, semiconductor sensors and solid electrolyte sensors using oxidation / reduction reactions detect not only methyl mercaptan gas but also odorous gases such as acetic acid, trimethylamine, and ammonia in the defecation gas. However, as a result of experiments, the inventors have found that the amount of mixed odorous gases such as hydrogen sulfide, methyl mercaptan, acetic acid, trimethylamine, and ammonia increases when the physical condition deteriorates due to bad lifestyle, and the physical condition is good. It was found to show a decreasing trend. Specifically, a healthy person has a small total amount of odorous gases other than methyl mercaptan gas and methyl mercaptan gas. In contrast, the total amount of methyl mercaptan gas and other odorous gases other than methyl mercaptan gas is the amount of intestinal environment due to excessive constipation, types of meals, lack of sleep, overdrinking, excessive drinking, excessive drinking, and excessive stress. Temporarily increases due to deterioration.

The acetic acid in the defecation gas tends to increase not only when the physical condition deteriorates due to diarrhea or the like but also when the physical condition is good. That is, it does not necessarily coincide with the tendency of the amount of other odorous gases such as methyl mercaptan accompanying the above-described physical condition change. However, the amount of acetic acid contained in the defecation gas is very small compared to methyl mercaptan, and even if the amount of acetic acid increases when the physical condition is good, the increase is the decrease in other odorous gases. Very small compared to Furthermore, the increase amount of acetic acid when the physical condition deteriorates due to diarrhea or the like is much larger than the increase amount when the physical condition is good. Therefore, as a whole, the amount of odorous gas contained in the defecation gas increases when the physical condition deteriorates due to bad lifestyle, and tends to decrease when the physical condition is good. And since the intestinal environment deteriorates due to such bad lifestyle habits, it becomes cancer, so the amount of odorous gas contained in the defecation gas improves the physical condition while the cancer is unaffected Therefore, it becomes a suitable index.
In this embodiment, not only methyl mercaptan gas but also physical condition based on detection data of semiconductor sensors and solid electrolyte sensors that react to odorous gas in defecation gas other than methyl mercaptan gas such as hydrogen sulfide, acetic acid, trimethylamine, and ammonia. Analyze. As a result, an analysis result reflecting the results of poor physical condition and bad lifestyle habits is obtained, and this analysis result should be used as an index based on objective data for improving physical condition and lifestyle habits that increase cancer risk. Can do.

The defecation gas contains not only odorous gases but also H ₂ and methane. When semiconductor gas sensors or solid electrolyte sensors are used as gas sensors, these sensors also react with H ₂ and methane. End up. Furthermore, when a measuring device using a semiconductor gas sensor or a solid electrolyte sensor is set in each household, these sensors may react with a fragrance or perfume.
On the other hand, as will be described in detail later, the inventors use a hydrogen sensor, a methane sensor and a column to separate the influence of hydrogen and methane from the detection data of the semiconductor gas sensor and the solid electrolyte sensor, and We established a method for removing the effects of fragrances and perfumes as noise by detecting defecation behavior. In this way, the effects of hydrogen and methane are separated from the data detected by semiconductor gas sensors and solid electrolyte sensors, and furthermore, the effects of fragrances and perfumes are removed, and only the amount of odorous gas in the defecation gas is estimated. Became possible.

Further, the amount of methyl mercaptan and other odorous gases contained in the defecation gas is very small compared to H ₂ and methane. For this reason, even if a semiconductor gas sensor or a solid electrolyte sensor is used, the mixed gas amount of these odorous gases may not be measured accurately.
On the other hand, the inventors have a healthy intestinal environment that is acidic, but when they become cancer patients, an odorous gas containing a sulfur component is generated and the amount of the gas increases. In addition, the intestinal environment becomes alkaline, and the amount of bifidobacteria and the like is reduced, so that the amount of healthy gas such as CO ₂ , H ₂ , and fatty acid is inversely proportional to the increase in the amount of odorous gas We paid attention to the fact that it will definitely decrease continuously.
For this reason, the inventors do not necessarily have high measurement accuracy in each measurement, but the 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 is calculated daily. We thought that the occurrence of advanced cancer could be detected by monitoring during defecation.

  Therefore, the inventors measure the amount of healthy gas and odorous gas contained in the defecation gas of healthy people in their 60s or younger, healthy people in their 60s to 70s, patients with early cancer, and patients with advanced cancer. As a result, a result as shown in FIG. 17 was obtained. That is, the defecation gas of a healthy person has a large amount of healthy gas and a small amount of odorous gas. On the other hand, the defecation gas of cancer patients has a small amount of healthy gas and a large amount of odorous gas. And the amount of the health system gas contained in the defeased gas of advanced cancer is decreasing compared with early cancer. Furthermore, when the amount of healthy gas and the amount of odorous gas are intermediate amounts between a cancer patient and a healthy person, it is considered to be a gray zone, that is, a non-disease state. For this reason, the inventors measure the gas amount of the health system gas and the gas amount of the odorous gas of the subject based on the above-mentioned knowledge, and think that the determination accuracy of the health state can be improved based on these correlations. It was.

Further, FIG. 18 to FIG. 24 show measurement data comparing various gas amounts contained in the defecation gas between healthy subjects and colon cancer patients (including advanced cancer and early cancer).
FIG. 18 is a diagram comparing the amount of hydrogen sulfide contained in the defecation gas between healthy subjects and colorectal cancer patients, FIG. 19 is methyl mercaptan gas, FIG. 20 is hydrogen gas, FIG. 21 is carbon dioxide gas, FIG. 22 is a graph comparing propionic acid gas, FIG. 23 is acetic acid gas, and FIG. 24 is a graph comparing the amount of butyric acid gas between a healthy person and a colorectal cancer patient. In each of these drawings, (a) shows measurement data of each gas amount, a healthy person is indicated by a round mark, and a colon cancer patient is indicated by a triangular mark. Further, (b) shows the average value of each measurement data as a bar graph and the standard deviation of the measurement data as a line segment.

  As is apparent from the measurement data in FIGS. 18 to 24, the amount of various gases contained in the defecation gas varies widely between healthy subjects and colorectal cancer patients, but odorous gases such as hydrogen sulfide gas and methyl mercaptan. Regarding gas, many data showing a large amount of gas are found in patients with colorectal cancer, and there is almost no data showing a large amount of gas in healthy individuals. On the other hand, with respect to hydrogen gas and carbon dioxide gas, many data showing a large amount of gas are found in healthy subjects, and almost no data showing a large amount of gas is seen in patients with colorectal cancer. In this way, the amount of odorous gas, which indicates the risk of colorectal cancer, contained in the defecation gas is large in colorectal cancer patients and small in healthy individuals, while hydrogen gas and carbon dioxide, which are healthy gases, are present. The amount of carbon gas is higher in healthy subjects and lower in colorectal cancer patients. Thus, the size relationship between the amount of odorous gas and the amount of healthy gas is reversed between healthy subjects and colorectal cancer patients. Although this measurement data shows that it is difficult to measure the physical condition of the subject sufficiently by measuring the amount of these odorous gases and health-related gases once, the relationship between the odorous gas and health-related gases can be measured within a predetermined period. It shows that the physical condition of the subject can be reliably measured by continuously measuring multiple times.

In addition, the inventors measured the defecation gas, and when performing a plurality of excretion actions (an act of discharging one fart or one stool) at the time of one defecation, the first excretion It was found that the amount of defecation gas discharged with the action was large and odorous gas was also included. Therefore, in the present embodiment, in order to accurately measure a trace amount of odorous gas, the health condition of the subject is analyzed based on the first stool gas. As a result, when measuring the amount of gas from the second and subsequent excretion actions, the effects of feces and farts excreted by the first excretion action may be affected.
The biological information measurement system 1 of the present embodiment is based on the measurement principle described above. The odorous gas in the following description includes methyl mercaptan gas, which is an odorous gas containing a sulfur component, and odorous gases such as hydrogen sulfide other than methyl mercaptan, methyl mercaptan, acetic acid, trimethylamine, and ammonia. It is a waste.

Next, a specific configuration of the biological information measurement system 1 of the present embodiment will be described in detail.
As shown in FIG. 1, the subject-side device 10 in the biological information measurement system 1 is attached to the flush toilet 2 in the toilet room R, and a part thereof is incorporated in the toilet seat 4 with a buttocks washing function. In the toilet seat 4 with a butt washing function, as a measuring device 6, there are a suction device 18 that sucks the gas in the bowl 2a of the flush toilet 2 and a gas detection device 20 that detects a specific component contained in the sucked gas. It has been incorporated. The suction device 18 also serves as a part of the function of a deodorizing device incorporated in the toilet seat 4 with a normal butt washing function. The gas sucked by the suction device 18 is deodorized by the deodorizing device, and then the bowl 2a. Returned in. Further, each device incorporated in the toilet seat 4 such as the suction device 18 and the gas detection device 20 is controlled by a 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 built 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 as a first detection sensor, and a second detection sensor. A seating detection sensor 36, a defecation / urine 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 sterilization device 48, and an fragrance injection The apparatus is connected to a fragrance sprayer 50, a deodorizing air supplier 52, a suction device 18, a sensor heating heater 54, a transceiver 56, and a duct cleaner 58. As will be described later, the hydrogen gas sensor and the odorous gas sensor can be an integrated sensor.

  The temperature sensor 32 measures the temperature of a detection unit such as the odorous gas sensor 26. The humidity sensor 30 measures the humidity of the gas sucked from the bowl 2a. The sensor sensitivity of these sensors slightly changes depending on the temperature of the detection unit. In addition, a change in humidity due to urination or the like similarly affects the sensitivity of the sensor. In the present embodiment, since the amount of odorous gas is very small, the toilet side is used in accordance with the temperature and humidity measured by these sensors 30 and 32 so that the 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), which will be described later, so as to accurately maintain the sensor temperature and suction humidity of the sensors 30 and 32 within a predetermined range, thereby determining the predetermined temperature and humidity environment. Adjust to. Note that these sensors and devices are not essential, and are desirably provided to improve accuracy.

The entrance detection sensor 34 is, for example, an infrared sensor, and detects entry / exit of the subject into 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 / urine detection sensor 38 is constituted by a microwave sensor, and whether the stool or stool discharged by the subject is stool or whether the stool floats in the sealed water It is configured to detect the state of defecation such as whether it is sinking or whether the stool is diarrhea. Alternatively, the defecation / urination detection sensor 38 can be configured by a CCD, a water level sensor that measures the transition of the 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 that is used for butt washing, and is a device that cleans the butt of the subject after defecation. The nozzle driving device 42 is configured to drive the nozzle to wash the flush toilet 2.
The nozzle cleaning device 44 is a device for cleaning the nozzles of the nozzle driving device 42. In this embodiment, hypochlorous acid is generated from tap water, and the nozzle is cleaned with the generated hypochlorous acid. It 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 and washing the bowl 2a 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 and cleans the inside of the bowl 2a. However, as will be described later, the toilet cleaning device 46 is automatically operated by the control device 22 according to the situation.
The toilet sterilizer 48 generates, for example, sterilized water such as hypochlorous acid water from tap water, sprays the generated sterilized water onto the bowl 2a of the flush toilet 2, and sterilizes the bowl 2a. It is.

The fragrance sprayer 50 is a device for spraying a predetermined fragrance into the toilet room R. This is provided in order to prevent the subject from spraying an arbitrary fragrance into the toilet room R and spraying an odor component that would cause a measurement disturbance. By providing the fragrance sprayer 50, a fragrance that does not affect a predetermined measurement can be sprayed in a predetermined amount at a predetermined time according to the situation, and the biological information that the fragrance has been sprayed. The measurement system 1 can recognize it. Thereby, 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 unit.
The suction device 18 includes a fan for sucking the gas in the bowl 2a of the flush toilet 2, and the sucked gas flows through the detection unit such as the odorous gas sensor 26 and is then deodorized by the deodorizing filter. . The detailed configuration of the suction device 18 will be described later.

The deodorized air supply device 52 is a device that discharges air that has been sucked and deodorized by the suction device 18 into the bowl 2a.
The sensor warming heater 54 is for heating and activating a 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 with, for example, hypochlorous acid obtained by electrolyzing tap water.

  In the present embodiment shown in FIG. 1, the suction device 18, the deodorizing air supply unit 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. Thereby, the gas reacting with the odor gas sensor 26 flows into the bowl 2a from the outside, and the gas component in the bowl 2a is prevented from changing due to factors other than the defecation gas discharged from the subject during the defecation period of the subject. Is done. Therefore, the deodorizing device and the deodorizing air supply device 52 provided with the deodorizing filter 78 function as output result stabilizing means. Alternatively, as a modified example, a measurement gas supply device (not shown) that allows gas that does not react with each gas sensor to flow into the bowl 2a is provided, and the measurement gas equivalent to 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 stabilization unit that stabilizes the analysis result.

  Next, as shown in FIG. 2, the remote control 8 has a built-in data analysis device 60. The data analysis device 60 includes a subject identification device 62, an input device 64, a transceiver 66, and a display device. 68 and a 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 an analysis result by 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 constructed in the storage device.

In this embodiment, the input device 64 and the display device 68 are configured by a touch panel, and receive various inputs such as subject identification information such as the subject's name, and display various information such as physical condition measurement results. It has come to be.
The speaker 70 is configured to output various alarms, messages, etc. issued by the biological information measurement system 1.
In the subject specifying 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 control 8 side is communicably connected to the server 12 via a network. For example, the subject terminal 14 includes a device capable of displaying received data, such as a smartphone, a tablet PC, or 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 health 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 along with the measurement date. The server 12 stores a diagnostic table and has a data analysis circuit.
Furthermore, 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 a PC, for example, and can browse 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 measurement 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, in order to detect carbon dioxide, the gas detection device 20 uses a solid electrolyte type sensor.
The semiconductor gas sensor has a detection unit made of a metal oxide film containing tin oxide or the like. In a state where the detection unit is heated to several hundred degrees, when the heated detection unit is exposed to a 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 this embodiment, the semiconductor gas sensor is used for both the sensor for detecting odorous gas and the sensor for detecting hydrogen gas. However, the detection unit used in the odorous gas sensor reacts strongly to the odorous gas. As described above, the material components of the detection units are adjusted so that the detection units used in the hydrogen gas sensor react strongly with hydrogen gas.

  As described above, in the present embodiment, the “semiconductor gas sensor” is used as the “odor gas sensor”. As described above, this “semiconductor gas sensor” is other than the methyl mercaptan gas to be detected. The general thing which reacts also widely with odorous gas is used. In addition, a solid electrolyte sensor can be used as an “odor gas sensor” as will be described later, but the solid electrolyte sensor also reacts widely with other odorous gases in addition to methyl mercaptan gas as with the semiconductor gas sensor. You can use a common one. In other words, a gas sensor that reacts only with methyl mercaptan gas is extremely difficult to manufacture, and even if manufactured, it becomes an extremely large and expensive gas sensor. If such a large and expensive gas sensor is adopted, a biological information measurement system is manufactured at a cost that can be sold as a consumer product, even if it can be realized as a medical device used in advanced clinical examinations. It becomes impossible. In the biological information measurement system of the present embodiment, a simple, general-purpose gas sensor that reacts to other odorous gases other than the methyl mercaptan gas to be detected is adopted as the “odorous gas sensor”. This makes it possible to realize a living body information measurement system as a consumer product. As described above, the gas sensor employed in the present embodiment is a sensor that also reacts with methyl mercaptan gas and odorous gas other than methyl mercaptan gas. It will be referred to as “odorous gas sensor”. Representative examples of the odorous gas to which the “odorous gas sensor” employed in the present embodiment reacts include methyl mercaptan gas, hydrogen sulfide gas, ammonia gas, and alcohol-based gas.

  In addition, the “odorous gas sensor” employed in the biological information measuring system 1 of the present embodiment is a sensor that reacts to other odorous gases in addition to the target methyl mercaptan gas, but will be described later. Due to various measures, even if such a gas sensor is used, it is possible to measure with sufficient accuracy as a consumer product. Specifically, in a toilet room where various odorous gases exist, data on defecation gas is extracted from the device for improving the measurement environment and detection signals from the gas sensor, assuming the defecation behavior of the subject. Ingenuity in data processing, even when detection data with a large error is obtained, ingenuity to prevent an excessive psychological burden on the subject can be mentioned. Details of each device point will be described later.

  In this embodiment, a case where a semiconductor gas sensor is used as a sensor for detecting odorous gas and hydrogen gas will be described. However, a solid electrolyte sensor can be used instead. The solid electrolyte sensor is a sensor that detects a gas based on an ion permeation amount that passes through the solid electrolyte by heating a solid electrolyte such as stable zirconia, for example. Gases that can be detected by the solid electrolyte sensor include hydrogen gas and odorous gas. In this embodiment, a solid electrolyte sensor is used as a sensor for detecting carbon dioxide. The carbon dioxide sensor is not limited to these, and an infrared method or the like may be used. A sensor for detecting carbon dioxide can be omitted.

As shown in FIG. 3, in the present embodiment, a gas detection device 20 is disposed inside the suction device 18.
The suction device 18 includes a duct 18a directed downward, an intake passage 18b oriented substantially in the horizontal direction, and a suction fan 18c disposed on the downstream side 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 includes a filter 72 disposed in 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, a filter 72 is disposed so as to cross the intake passage 18 b, and an odorous gas sensor 26, a hydrogen gas sensor 24, and a 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 the suction device 18 also functions as a deodorizing device by deodorizing the gas taken in by the deodorizing filter 78.
Further, a humidity adjusting device 59 is provided on the downstream side of the deodorizing filter 78. A moisture absorbent is enclosed in the humidity adjusting device 59, and when it is necessary to lower the humidity in the bowl 2a, the air that has passed through the deodorizing filter 78 passes through the enclosed moisture absorbent. Thus, the flow path is switched to remove moisture 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. Accordingly, 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 odorous 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 deodorizing duct 18a opens in the bowl 2a with the suction port directed downward so that droplets such as urine do not enter the interior. Odorous gases such as methyl mercaptan and hydrogen gas have a low molecular weight, so they rise immediately after defecation. In contrast, in the present embodiment, the exhausted odorous gas and hydrogen gas are reliably introduced into the gas detection device 20 by being sucked by the suction fan 18c from the inlet of the duct 18a opened in the bowl 2a. be able to. Thus, the suction device 18 is operated before the subject starts defecation, and makes the gas sensor contact a gas having a constant flow rate during the defecation period of the subject. Thereby, a stable measurement value can be obtained. Accordingly, the suction device 18 and the control device 22 that operates the suction device 18 function as output result stabilization 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 matters such as urine and cleaning agents. As such a filter 72, a member that mechanically collects foreign matters, for example, a fine net-like member, without using a chemical reaction, can be used. Thereby, it is possible to prevent the odorous gas sensor 26, the hydrogen gas sensor 24, and the carbon dioxide sensor 28 from being contaminated by urine stones or the like.

  Further, for each gas sensor, a sensor heating heater 54 is provided upstream of each gas sensor and downstream of the filter 72. 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 detection units of the odorous gas sensor 26 and the hydrogen gas sensor 24. Also, the carbon dioxide sensor 28 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 odor removing device for heating and removing odorous gas components adhering to the sensor. Even when a solid electrolyte sensor is used as an odorous gas sensor or a hydrogen gas sensor, it is necessary to provide a sensor heater for heating the detection unit.

  Further, the sensor heating heater 54 also functions as a means for removing deposits attached to each sensor. Although the gas that has passed through the filter 72 has foreign substances removed, the sucked gas contains various odorous gas components. Such off-flavor gas components adhere to each gas sensor and can cause noise when measuring a minute amount of odorous gas. On the other hand, by heating the detection part of the sensor with the sensor heating heater 54, the off-flavor gas adhering to the sensor can be removed by heating without providing a new device. Moreover, the control apparatus 22 controls the sensor heating heater 54 so that the temperature of each gas sensor becomes constant before the subject's defecation behavior 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 being lowered due to the contact of the airflow. Thereby, during the test subject's defecation period, the sensitivity of each gas sensor is managed by predetermined value, and the measurement error by each gas sensor can be suppressed.

  Further, the deodorizing filter 78 is a catalytic filter that adsorbs an odorous gas such as an odorous gas. The air from which gas such as odorous gas is removed by the deodorizing filter 78 is returned to the bowl 2a. At this time, if the gas refluxed into the bowl 2a contains 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 again. There is a risk that. For this reason, in this embodiment, the deodorizing filter 78 is arrange | positioned in the downstream of the odorous gas sensor 26, and odor components, such as odorous gas, are reliably removed from the gas returned in 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. When the inside of the bowl 2a becomes negative pressure, the off-flavor gas component adhering to the body of the subject or clothes is sucked into the bowl 2a. In the biological information measurement system 1 of the present embodiment, the odorous gas sensor 26 is set to have extremely high sensitivity in order to detect odorous gas that is contained in a small amount in the defecation gas. Even the off-flavor gas component adhering to etc. becomes a disturbance to the measurement. On the other hand, in this embodiment, since the gas after deodorization is returned into the bowl 2a, the inside of the bowl 2a does not become negative pressure, and the off-flavor gas component adhering 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. For this reason, it is necessary to separate the influence of hydrogen gas from the detection data detected by the semiconductor gas sensor. In this embodiment, as a hydrogen separation mechanism for separating the influence of such hydrogen gas, the hydrogen gas sensor 24 detects the odorous gas detected by the semiconductor gas sensor in the gas detection device 20. By subtracting the detection value of the hydrogen gas, the influence of the hydrogen gas is separated and output as the detection value of the odorous gas sensor 26. A configuration including such a hydrogen separation mechanism, a semiconductor gas sensor, and a hydrogen gas sensor 24 and outputting a detection value corresponding to the amount of odorous gas and the amount of hydrogen gas is referred to as a detection value output mechanism. The arithmetic processing for subtracting the detected value of the hydrogen gas detected by the hydrogen gas sensor 24 from the detected value of the odorous gas detected by the semiconductor gas sensor may be performed in the data analysis device 60 or the like. In this embodiment, a hydrogen separation mechanism for separating the influence of hydrogen gas from detection data detected by the semiconductor gas sensor will be described. By providing a methane sensor for detecting methane, detection data detected by the semiconductor gas sensor is provided. It is also possible to separate the effects of methane from As the methane gas sensor, a semiconductor gas sensor adjusted so that the material component of the detection unit reacts strongly with methane may be used.

  In many people's intestines, there are no methanogens that produce methane, or even if they exist, the amount of methane is very small. Few. For this reason, in this embodiment, the hydrogen sensor 24 and the carbon dioxide sensor 26 are provided as health system gas sensors. However, rarely, there are people who have very many methanogens in their intestines. As described above, the defecation gas of a person having a very large number of methanogenic bacteria in the intestine has a large amount of methane produced but a small amount of hydrogen produced. For this reason, when only the hydrogen sensor 24 and the carbon dioxide sensor 26 are provided, the fecal gas of a person who has a very large amount of methanogenic bacteria in the intestine is judged to be less preferable because the amount of discharged health gas is small. In this embodiment, the hydrogen sensor 24 and the carbon dioxide sensor 26 are provided as health gas sensors in order to suit many people, but a methane gas sensor is provided instead of the hydrogen sensor 24 according to 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 handled, which is more preferable.

Next, with reference to FIG.4 and FIG.5, the flow which measures a physical condition with the biological information measuring system 1 by 1st Embodiment of this invention is demonstrated.
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 illustrating an example of a screen displayed on the display device of the remote controller.

  As shown in FIG. 4, in the measurement at the time of one defecation action by the biological information measurement system 1 of the present embodiment, the pre-measurement environment preparation step S1, the measurement start preparation step S2, and the measurement reference value setting step S3 The measurement process S4, the examination process S5, the communication process S6, and the post-measurement environment maintenance process 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) which is a first detection sensor.
In the pre-measurement environment maintenance step S1, the control device 22 on the toilet seat side changes and controls the sensor warming heater 54, the suction device 18, and the toilet lid opening / closing device 40 to the measurement standby mode. In the measurement standby mode, the sensor heating heater 54 is based on the temperature measured by the temperature sensor 32 so that the temperature of the detection unit of the odorous gas sensor 26 is lower than the temperature at the time of measurement (for example, 200 ° C.). It is controlled to become. As described above, the gas detection device 20 is placed in a measurement standby state before the entry detection sensor 34 detects entry. In the measurement standby mode, the suction device 18 is controlled so that the suction air volume is minimized. The toilet lid opening / closing device 40 is controlled so that the toilet lid is closed in the measurement standby mode.

  In the pre-measurement environment maintenance step S1, the detection unit of the odorous gas sensor 26 measures the gas concentration of the odorous gas although the sensor warming heater 54 is in the measurement standby mode and is lower than the optimum temperature. Is possible. When there is a source of off-flavor gas in the bowl 2a, such as when there is attached stool in the flush toilet 2, the gas concentration measured by the odorous gas sensor 26 becomes a predetermined value or more. When the gas concentration value measured by the odorous gas sensor 26 exceeds a predetermined value in the pre-measurement environment maintenance step S1, the control device 22 performs toilet cleaning. 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. The bowl 2a is washed, or the sterilizer 48 generates sterilized water such as hypochlorous acid water from tap water, and sprays the generated sterilized water onto the bowl 2a to sterilize the bowl 2a. 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 can operate the suction device 18 to discharge the gas in the bowl 2a, thereby reducing the gas concentration. Since the gas sucked by the suction device 18 is deodorized by the deodorization filter 78, 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 open, not only the inside of the bowl 2a but also the toilet room R can be deodorized. It can also function as a deodorizing device. Preferably, when the suction device 18 and the deodorization filter 78 are functioned as a deodorization device, the amount of gas sucked by the suction device 18 is set larger than when the physical condition is measured during the defecation period of the subject.

  Alternatively, a 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 lowered 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.

  Furthermore, if the amount of gas measured by the odorous gas sensor 26 does not become less than a predetermined value even after the toilet bowl cleaning described above is performed in the pre-measurement environment maintenance step S <b> 1, the control device 22 causes the transceiver 56 to perform a cleaning warning. Send command signal. When the transmitter / receiver 66 on the remote control 8 side receives the cleaning warning command signal, the display device 68 or the speaker 70 notifies the subject to wash the toilet.

  In addition, in the pre-measurement environment maintenance step S1, the control device 22 periodically performs suction environment cleaning. Specifically, the control device 22 drives the duct cleaner 58 and sprays cleaning water into the duct 18a of the suction device 18 to clean the duct 18a and the like. Further, the hydrogen heater 24, the odorous gas sensor 26 and the carbon dioxide sensor 28 are heated to a high temperature by the sensor heating heater 54, and the off-flavor gas components adhering to the surfaces of these gas sensors 24, 26 and 28 are burned out.

  Next, when the entrance of the subject is detected by the entrance detection sensor 34, the control device 22 transmits a signal to start the measurement start preparation step S <b> 2 to the transmitter / receiver 66 on the remote control 8 side via the transmitter / receiver 56. The measurement start preparation step S2 is performed in synchronization with the remote control side.

  In the measurement start preparation step S2, first, the subject specifying device 62 incorporated in the remote controller 8 specifies a subject. Specifically, the resident of the house where the system is installed is registered in the biological information measurement 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 candidate's button is displayed, and when the subject entering the toilet room R presses the button corresponding to himself / herself, the subject is identified. Further, the data analysis device 60 built in the remote controller 8 refers to the storage device, and displays the physical measurement display table as the reference measurement data and the past measurement data of the personal identification information received by the subject identification device 62 and the analysis reference. get.

  Further, in the measurement start preparation step S2, as shown in FIG. 5, the data analysis device 60 performs the previous defecation such as “Did you defecate in another place?” On the second stage of the display device. Questions regarding whether or not this was done in the toilet where the device was installed, and the answer options “Yes (this morning)”, “Yes (yesterday afternoon)”, “Yes (yesterday morning)”, “before yesterday” “No” is displayed. 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. The defecation history information regarding the elapsed time from the previous defecation behavior of the subject is stored in a storage device (subject information storage device) built in the remote controller 8, and the subjects registered in advance in the subject information storage device The subject information regarding the body weight, age, sex, etc. of the child is also stored. 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 control device 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 warming heater 54 is based on the temperature measured by the temperature sensor 32 so that the temperature of the detection unit of the odorous gas sensor 26 becomes the first temperature suitable for measurement (for example, 400 ° C.). Be 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. 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 is controlled to be constant so that the suction air volume is increased to an air volume that prevents the defecation gas from leaking outside from the bowl 2a and does not fluctuate from such air volume. Further, the toilet lid opening / closing device 40 is controlled to open the toilet lid in the measurement mode. As described above, the gas detection device 20 is brought into the measurement state when the entrance detection sensor 34 detects the entrance.

In the measurement start preparation step S <b> 2, when the odorous gas concentration detected by the odorous gas sensor 26 is high, the control device 22 performs sterilization in the bowl 2 a by the toilet sterilization device 48.
Further, in the measurement start preparation step S2, when the humidity measured by the humidity sensor 30 is a value that is not suitable for the measurement of the defecation gas by the odorous gas sensor 26, the control device 22 sends a signal to the humidity adjustment device 59. To control the humidity in the bowl to an appropriate value.

  In the measurement start preparation step, when the toilet seat 4 is cleaned with a sheet using an alcohol-based disinfectant or spraying, the odorous gas sensor 26 reacts with alcohol and the gas concentration value increases rapidly. Thus, when the gas concentration measured by the odorous gas sensor 26 increases rapidly, 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 serving as a base for defecation gas measurement. Based on this environmental reference value, the data analysis device 60 determines whether or not measurement is possible. If the data analysis device 60 determines that the noise level is being measured or cannot be measured, the display device 68 causes the display device 68 to read “Preparing for measurement! ”Is displayed to prompt the subject to wait for defecation.

Next, when the seating detection sensor 36 detects that the subject is seated, the control device 22 transmits a signal indicating 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. In addition, when the seating detection sensor 36 repeats detection and non-detection a predetermined number of times, it is an effect of cleaning of the toilet seat by the subject, and in such a case, it is desirable to return to S1.
In the measurement reference value setting step S <b> 3, the data analysis device 60 performs subject adhering odor noise determination, which is determination of a noise level caused by the subject, based on the measurement value measured by the odorous gas sensor 26. The odorous gas measured by the odorous gas sensor 26 after the subject enters the room and before the excretion action is started is the odorous gas adhering to the subject, and the first detection with the fecal gas as a detection target. This noise is unnecessary for data detection. However, the odorous gas measured during this period includes information on the body odor of the subject. In the present embodiment, the measured value of the odorous gas measured during the period of preparation for defecation until the start of excretion after the entrance detection sensor 34 detects the entrance of the subject is also the subject's measurement value. It is acquired as second detection data for obtaining information on body odor. As will be described later, when analyzing the first detection data, the data analysis device 60 excludes the odorous gas corresponding to the second detection data as odorous gas noise caused by the subject. In the present embodiment, the first detection data and the second detection data are stored independently.

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 in detail later.
Next, as will be described in detail later, when the data detected by the odorous gas sensor 26 rises from the reference value of odorous noise at a positive change rate equal to or greater than a predetermined value, the data analysis device 60 performs the excretion action. It determines with having performed and transfers to measurement process S4. The data analysis device 60 performs the measurement step S4 until it is detected by the seating detection sensor 36 that the subject has left the seat after it is determined that the subject has excreted.

  That is, the subject closes the door of the toilet room and approaches the flush toilet 2 until the subject's seating is detected by the seating detection sensor 36 after the entrance detection sensor 34 detects the entrance of the subject. After opening the lid, looking back toward the flush toilet 2, it is presumed that she is performing defecation preparations such as undressing. For this reason, in this embodiment, the period until the subject enters the toilet room and sits on the toilet seat 4 is referred to as a “defecation preparation period”, and the period until the subject sits and then leaves the seat is the “defecation period”. It is said. Accordingly, the seating detection sensor 36, which is the second detection sensor, is a sensor for directly detecting the seating behavior of the subject sitting on the toilet seat, and is a defecation period after sitting or before the seating on the toilet seat. It functions to detect whether it is a defecation preparation period in which it is preparing. Furthermore, the entrance detection sensor 34 which is a first detection sensor for detecting the entrance of the subject functions as a sensor for determining whether or not the “defecation preparation period” is started from the standby state.

  In the present embodiment, the toilet seat 4 has a built-in local cleaning device (nozzle drive device 42), and a sensor for detecting the seating provided in the local cleaning device is also used as the seating detection sensor 36. ing. That is, the local cleaning device includes a sensor for determining whether or not it is possible to inject cleaning water for local cleaning for cleaning the buttocks, and a user (subject) is seated. The washing water for local washing is jetted only in the state. In the biological information measurement system 1 according to the embodiment of the present invention, the switch (sensor) for detecting the seating provided in the local cleaning device is also used as the seating detection sensor 36 (defecation behavior determination sensor). In addition, after the subject enters the toilet room, the time until the start of defecation is about 10 seconds for the average subject, and the investigation by the present inventor has revealed. However, since this time varies greatly depending on the age, health status, lifestyle, and clothing of the subject, it is estimated based on the elapsed time after entering the room whether or not it has shifted from the “defecation preparation period” to the “defecation period” It is difficult to do so, and it is preferable to detect directly by a sensor. As the second detection sensor for detecting the “sitting behavior” that shifts to the “defecation period”, not only the seating detection sensor 36, but also a load sensor that detects the load on which the subject is seated, and a micro that detects the approach of the subject. Various sensors such as a wave sensor, an infrared sensor, and an imaging sensor can be used.

  In the present embodiment, the start of the “defecation preparation period” is determined based on the entrance detection sensor 34 that is the first detection sensor. 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 preparation for defecation, and entering the room. Thus, the start of the “defecation preparation period” cannot be determined. In such a case, a dedicated switch for inputting that the subject has approached the flush toilet 2, opened the toilet lid of the flush toilet 2, input to the subject identification device 62, and started to prepare for defecation. Thus, the start of the “defecation preparation period” can be determined, and a sensor for detecting any of these can be provided as the first detection sensor.

In the measurement step S4, 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 defecation / urination. The detection data measured by the detection sensor 38 is stored in the storage device for each subject specified by the subject specifying device 62. In other words, after the seating behavior is detected by the seating detection sensor 36, the first detection data for detecting the odorous gas contained in the defecation gas is acquired by the gas detection device 20. 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 ends. 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 ends. However, the measurement value 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 the defecation gas even when the subject does not input the 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 inputs the subject information during one stool. This is a practical device tailored to the characteristics of defecation so that various inputs can be made after calming down in a tight situation such as defecation. Further, if the subject does not input subject information even after a predetermined time has elapsed 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. Thereby, a test subject's forgetting input can be prevented.

  At the same time, as in the measurement reference value setting step S3, the data analysis device 60 determines whether or not measurement is possible. If it is determined by the data analysis device 60 that measurement is possible, the data analysis device 60 uses the display device 68 as shown in the lower row of FIG. An indication that the measurement is being performed is presented to the subject.

Next, when it is detected by the seating detection sensor 36 that the subject has left the seat, the control device 22 transmits a signal indicating that the examination process S5 is started to the data analysis device 60 via the transceiver 56. When receiving this signal, the data analysis device 60 starts the medical examination step S5.
First, the data analysis device 60 calculates the measurement reliability, which will be described in detail later, based on the measurement values measured by the sensors.
On the other hand, the control device 22 prohibits the flush toilet 2 from being washed when information for identifying the subject is not input even after the subject has left the seat. That is, when the subject specifying information is not input, even if the subject operates a cleaning button (not shown) of the remote controller 8, the control device 22 does not discharge the cleaning water of the flush toilet 2 and prompts input. Is displayed. Thereby, it is possible to strongly urge the subject to input subject identification information.

Further, as will be described in detail later, the data analysis device 60 estimates the gas amounts of odorous gas and hydrogen gas (health gas).
Further, in the screening process S5, the data analysis device 60 detects the change over time of the plurality of first detection data obtained by measuring the defecation gas, which is detected in a plurality of stools performed within a predetermined period and stored in the storage device. Based on the result of the examination to analyze the physical condition of the subject based on the diagnosis, a time-lapse diagnosis based on the stored value is performed. Then, the advice content based on the diagnosis over time 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 related to health management. In the example shown in FIG. 5, as a result of the examination of the intestinal state based on the first detection data, the subject's current physical condition corresponds to “physical illness”, and advice is “the intestinal environment seems to be bad. "Let's keep a healthy life."

Furthermore, the amount of health gas such as hydrogen gas and carbon dioxide gas, and the amount of poor physical condition gas such as odorous gas in the current measurement are also displayed as a result of the examination of the intestinal state. Under the advice, measurement results for the past four times are also displayed.
Furthermore, the measurement result of the body odor state based on the second detection data measured during the defecation preparation period and the advice based on the measurement result of the body odor are displayed below the examination result of the intestinal state. In the example shown in FIG. 5, “None” is displayed as the measurement result of the body odor state, and “There is almost no body odor” is displayed as the advice. The advice displayed here is “no body odor”, “near body odor”, “a little body odor”, “it seems to have a lot of body odor” “A lot of body odor continues (* 1 week in a row) We will continue to improve if you notice something related to lifestyle and cleanliness. In addition, there is no problem with perfume.” “Body odor A large amount has continued for more than 3 months.Since there is a concern about physical condition, it is recommended to have a diagnosis once.If it is due to perfume, there is no problem.Measure without attaching perfume. Is recommended. "

  In addition, when the subject presses the “detail screen” button next to the examination result of the intestinal state on the display screen, a table showing the physical condition change of the subject for the past month is displayed. Further, when a “detail screen” button next to the measurement result of the body odor state on the display screen is pressed, a graph showing a change in the body odor of the subject over the past 10 years is displayed. These displays will be described later. As described above, the analysis result regarding the intestinal state displayed on the display device 68 of the remote controller 8 includes only the physical condition, advice, and physical condition change (measurement data history), and is displayed on the medical institution terminal 16. It does not include notifications regarding the results of the determination of a major cancer disease. The measurement result of the body odor state is also displayed on the medical institution terminal 16. This is because, as will be described later, the body odor of a subject may become strong in the long term even with a chronic disease. These analysis results may be notified to the subject terminal 14.

  Further, as shown at the bottom of FIG. 5, the reliability of the current measurement data is displayed at the bottom of the display device 68. In the example shown in FIG. 5, the reliability is displayed as “4”, which is relatively high. When the reliability is low, the reason why the reliability has decreased and advice for improving the reliability are displayed under the reliability display. For example, if 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 affects the measurement result. .

Next, when the control unit 22 detects that the subject has left the room by the entrance detection sensor 34, the control unit 22 transmits a signal indicating that data transmission is performed to the data analysis device 60 via the transceiver 56. When receiving this signal, the data analysis device 60 performs a communication step S6.
In the communication step S6, the data analysis device 60 obtains the information for identifying the subject specified by the subject specifying 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 flight status information regarding at least one of the flight volume and the flight status and the bowel movement history information are transmitted to the server 12 via the network. The server 12 records the received information in a database.

In addition, after the subject leaves the room by the entrance detection sensor 34, the control device 22 performs a post-measurement environment maintenance step S7.
The control device 22 measures the gas concentration by the odorous gas sensor 26 in the post-measurement environment maintenance step S7. When the gas concentration measured by the odorous gas sensor 26 is larger than a predetermined value even after a predetermined time has elapsed after the end of the defecation period, the control device 22 has stool adhesion on the bowl 2a of the flush toilet 2 And the wash water stored in the wash water tank by the toilet flushing device 46 is discharged into the bowl 2a to wash the inside of the bowl 2a, or the hypochlorine from tap water by the toilet flushing device 48 Disinfecting water such as acid water is generated, and the generated disinfecting water is sprayed on the bowl 2a to sterilize the bowl 2a.

Furthermore, if the gas concentration measured by the odorous gas sensor 26 is greater than a predetermined value even after a predetermined time has elapsed after the end of the defecation period, the residual gas removing means determines that the duct 18a is dirty. The duct cleaner 58 is activated. 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.
In addition, the residual gas removing means is a flush toilet when the gas concentration measured by the odorous gas sensor 26 is not sufficiently lowered even when the above washing and sterilization processes are executed and is larger than a predetermined value. 2 is displayed on the display device 68.

  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, a physical condition display table is demonstrated with reference to FIG. 6, and a time-dependent change graph of test subject adhesion odorous gas is demonstrated with reference to FIG. These physical condition display table and subject adhesion odor gas graph are a table and a graph respectively displayed by pressing the upper “detail screen” button and the lower “detail screen” on the display screen shown in FIG.
In the storage device on the remote control 8 side, the physical condition display table, the date and time of defecation 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 during the defecation period, but due to the relationship with the capacity of the storage device, it is discharged by the first excretion action during the defecation period. The measurement data of the defecation gas (measurement data of the first excretion action period) is preferable.

  As shown in FIG. 6, the physical condition display table is a table determined based on the experiment conducted by the above-described inventors, and the vertical axis represents the odorous gas that is the first index (the poorly related gas on the display). Is a graph showing an index related to the amount of gas and a horizontal axis indicating the index related to the gas amount of health-related gas as the second index. The first index relates to the amount of odorous gas in the first detection data detected by the gas detection device 20, and the second index is health-related gas in the first detection data. It relates to the amount of hydrogen gas. On the display device 68 of the remote controller 8, the measurement results of the defecation gas of the subject are displayed as plot points over time on such a physical condition display table having a vertical axis and a horizontal axis. That is, as shown in FIG. 6, the plot point representing the latest measurement result of the same subject is “1”, the previous result is “2”, and the previous result is “3”. . . As a result, the past 30 plot points are displayed together with numbers. As described above, the data analysis device 60 analyzes the first detection data based on the change over time in the correlation between the odorous gas and the health gas, whereby the subject recognizes the change over time in his / her physical condition. Can do. In this embodiment, the number is 30 times, but it may be several weeks or months, and may be a year by considering that the progression of cancer is a year. It is more desirable for the subject to be able to change the display range according to the situation. Furthermore, when the display range is large, the display method is easy to see, such as one year or two years on a monthly average. It goes without saying that it is even better to change in consideration of the above.

  Further, in the physical condition display table, “disease suspicion level 2”, “disease suspicion level 1”, “physical illness level 2”, “physical dysfunction level” are set according to the relationship between the index related to health gas and the index related to odorous gas. A plurality of regions 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 state of the worst physical condition is that the amount of odorous gas is the largest and the amount of healthy gas is the smallest in the physical condition display table. It is set in the upper left area. On the other hand, “good physical condition” corresponding to the best physical condition is set in the lower right region of the physical condition display table where the amount of odorous gas is the smallest and the amount of healthy gas is the largest. The areas of “disease suspicion level 1”, “physical condition level 2”, and “physical condition level 1” indicating physical condition levels between these are set in order from the upper left as a band-like area that rises to the right on the physical condition display table. Has been. Such a physical condition display table is set in advance according to the weight, age, sex, etc. of the subject. By displaying plot points based on the first and second indices on this table, the detection data and the subject are displayed. Analysis based on information can be performed.

As described above, in the present embodiment, since the two indexes of the index regarding the gas amount of the odorous gas and the index regarding the gas amount of the health-related gas are used, the change in the physical condition and the physical condition of the subject can be described in more detail. Can be evaluated. For example, even if the amount of healthy gas that indicates good physical condition is large, if the amount of odorous gas is also large, the evaluation is not the most satisfactory level (in the physical condition display table). Upper right area). On the other hand, even if the amount of healthy gas that indicates good physical condition is very small, if the amount of odorous gas is small, the evaluation is not the most bad level (physical condition display table). Lower left area).
In addition, for example, the boundary line between “physical condition level 1” and “physical condition level 2” indicating a state of poorer physical condition indicates that the index for the amount of healthy gas on the horizontal axis increases and the odor characteristic on the vertical axis. The “physical condition level 2” representing a state of poor physical condition is distributed on the larger side of the index related to the odorous gas amount of the boundary line. Since the boundary line is set in this way, in this embodiment, even if the index related to the amount of healthy gas on the horizontal axis is the same value, the condition of the physical condition depends on the value of the index related to the amount of odorous gas on the vertical axis. The evaluation will be different. In order to obtain an equivalent evaluation, the value of the health gas amount on the horizontal axis needs to increase as the value of the odorous gas amount on the vertical axis increases.

  Further, advice corresponding to the physical condition is recorded in the storage device on the remote controller 8 side. Specifically, the advice “please go to the hospital” for the physical condition “suspected disease level 2”, the advice “recommend to the hospital” for the physical condition “suspected disease level 1”, the physical condition “physical condition” “Unsatisfactory level 2” suggests that “disease concerns increase. Let's improve stress and reduce lifestyle habits immediately”, while “physical condition level 1” seems to be “bad”. The advice “let's keep in mind” is recorded in association with the advice “physical condition is good” in association with the physical condition “good physical condition”. On the physical condition display table, advice corresponding to the area where the latest plot point is located is displayed together with the plot points indicating the physical condition of the subject.

  Next, as shown in FIG. 7, the test subject adherent odor gas graph is a graph in which the horizontal axis represents time and the vertical axis represents body odor amount (body odor intensity), and the body odor of the subject measured in the past ( The second detection data of the odorous gas measured during the defecation preparation period is plotted in time series. As described above, the first detection data obtained by measuring the defecation gas is displayed on the physical condition display table of the display device 68 as the change over time. Independently, the second detection data obtained by measuring the odorous gas adhering to the subject is measured. The data is displayed on the subject-adherent odor gas graph over time. In the example shown in FIG. 7, the measurement data of the body odor of the subject is averaged every year, and the transition of the average value for the past 10 years is shown on the graph. It shows how the body odor increased little by little year by year. As described above, the odorous gas measured during the defecation preparation period also affects the perfume attached by the subject, but the subject may also be subject to sweating, urine leakage, dirt such as underwear, body dirt, etc. From this, ammonia and the like are emitted and this is measured as an odorous gas. However, it is known that the amount of released ammonia or the like increases even when the subject has liver function disease or chronic urinary leakage due to urinary system disease. Therefore, in the case where the amount of body odor has increased in the long term despite the absence of factors such as perfume, there is a concern about these diseases, so the display screen shown in FIG. A message is displayed. As described above, the temporal change of the first detection data shown on the physical condition display table and the temporal change of the second detection data shown on the subject adhesion odor gas graph evaluate different aspects of the health condition of the subject. It is used independently as a to, and these evaluations are displayed separately. In addition, the measurement result based on one body odor measurement displayed on the display screen of FIG. 5 can be used as a body odor checker, and the subject should check whether he / she has a strong body odor before going out. Can do.

Next, correction of plot points will be described with reference to FIG.
The plot points shown on the physical condition display table of the display device 68 of the remote controller 8 shown in FIG. 6 do not show the analysis results analyzed by the data analysis device 60 as they are, but have been moved with a predetermined correction. The plot point is shown at the position. Here, the disease assumed to be detected by the biological information measurement system 1 of the present embodiment is colon cancer or the like, and such a disease does not progress rapidly within a few days. On the other hand, the living body information measurement system 1 of the present embodiment sucks the defecation gas from the bowl 2a of the flush toilet 2 installed in the toilet room R and analyzes the sucked gas. I can't do it. In addition, when the subject is wearing perfume, or when the gas reacting with the odorous gas sensor 26 such as odorous gas remains in the toilet room R, an error occurs in the physical condition measurement result due to various factors. There is a fear.

For this reason, if the displayed physical condition swings to the side with a bad physical condition based on one measurement result of a test subject, an unnecessary psychological burden is given to the test subject. In addition, if the physical condition measurement result fluctuates greatly for each measurement, the test subject's confidence in the physical condition measurement result is lost. For this reason, in the biological information measurement system 1 of the present embodiment, the analysis result obtained by the data analysis device 60 is corrected so that the displayed measurement result does not fluctuate greatly for each measurement. However, the detection data stored in the storage device of the remote controller 8 and the detection data transmitted and stored in the server 12 are stored together with the reliability of the detection data without correction. The storage device of the remote controller 8 may store the coordinates of the display that is corrected and displayed in consideration of the next display. Thus, the detection data obtained by the biological information measurement system 1 of the present embodiment are not all highly reliable. However, it is possible to detect changes in the physical condition of the subject over a long period of time by acquiring data on daily defecation behavior continuously for a long period and accumulating the data in the storage device of the remote control 8 or the server 12. Thus, before the subject's physical condition is greatly deteriorated, attention can be drawn so as not to cause a large disease such as colorectal cancer.
As described above, the correction applied to the detection data functions as an output result stabilization unit that suppresses the physical condition index of the subject output to the display device 68 from being shaken 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.

FIG. 8A is a diagram illustrating an example of movement by correction of the plot points of the latest data, and FIG. 8B is a diagram illustrating limit processing for the movement amount of the plot points.
First, as shown in FIG. 8A, 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 past 30 measurement data. It is greatly deviated from. Thus, if the plot point “1” that is significantly deviated from the distribution of the measurement data up to the previous time is displayed, an excessive psychological burden is given to the subject. Since cancer risk does not increase in a day, such a large change in measurement data may be the result of bad lifestyles the previous day or the effects of noise rather than an increased risk of cancer. high. Therefore, in this embodiment, the correction is performed in consideration of not giving an excessive psychological burden to the subject. For this reason, when the latest analysis result changes to the poor physical condition side (upper left direction), the data analysis device 60 determines the position where the plot point “1” is displayed on the physical condition display table in the current measurement data. 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. 8A, the latest measurement data is at the position of the plot point “1 ′” corrected so that the plot point “1” is moved in the direction of the center of gravity G (good physical condition side). Is displayed (actually, the plot point “1” is not displayed). The movement 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, the psychological burden on the subject can be reduced by moving the latest plot point to the side showing good physical condition. The calculation of the reliability of the measurement data will be described later. However, the data analysis device 60 decreases the correction amount (the movement amount due to the correction) when the latest plot point moves to the poor physical condition side for a predetermined number of times or more. Thereby, the test subject can recognize that his / her physical condition is deteriorating and can urge him to try to improve his / her physical condition.

  In addition, when the latest physical condition measurement has a very large noise, and the latest plotted point is greatly deviated, even when the correction described in FIG. It can be considered that the body moves greatly toward the poor physical condition. For this reason, as shown in FIG. 8B, 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 when the latest data is deviated by 40% or more from the coordinates of the center of gravity G, 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 coordinate values in which the latest data can be plotted is (0.6x to 1.4x, 0.6y to 1.4y), which is not more than this. It is not plotted at the specified position.

  Furthermore, when the movement of the latest data exceeding 40% continues twice, the range in which the latest data can be moved is reduced to 60%. Thereby, for example, when the coordinate value of the center of gravity G is (x, y), the range of coordinate values in 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 a change in the physical condition of the subject is reflected rather than a simple measurement error.

Next, the server-side diagnosis table will be described with reference to FIG. The following processing in the server is performed by a data analysis circuit provided in the server 12.
FIG. 9 is a diagram illustrating an example of a diagnostic table displayed on the server side. As described above, in the biological information measurement system 1 of the present embodiment, the measurement data for 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. The accumulated measurement data can be displayed on a medical institution terminal 16 installed in a medical institution registered by a subject or the like. For example, when the subject receives a message “Recommend Visit” 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 that. In the diagnostic table, the vertical axis and the horizontal axis 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 assigned to each region is more specific. It has become. The doctor can refer to the physical condition of the subject over time by referring to the measurement data of the subject recorded in the database on the server 12 side at the medical institution terminal 16, which is useful for examination and treatment in the medical institution. Can do. Alternatively, when the measurement data transmitted to the server 12 indicates a significant physical condition, the subject's terminal 14 for the subject is notified so as to receive a medical examination from a medical institution in 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. 9, the diagnosis table on the server 12 side is a table determined based on the experiment conducted by the inventors described above, and the relationship between the amount of healthy gas and the amount of odorous gas. Corresponding to the disease state is associated. Specifically, in the diagnostic table, depending on the relationship between the amount of healthy gas and the amount of odorous gas, “large colorectal cancer concern”, “early colorectal cancer concern large”, “early colorectal cancer suspect” , “Physical dysfunction level 3”, “Physical dysfunction level 2”, “Physical dysfunction level 1”, “Health condition”, “Intestinal dysfunction (diarrhea)”, and “Suspected mismeasurement” 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 plotted point, “large colorectal cancer concern”, “early early colorectal cancer concern”, “early” Judgment regarding cancer diseases such as “suspected colorectal cancer” is performed. Note that the plot points displayed in the server-side diagnosis table are not corrected or limited, and the doctor comprehensively determines the displayed data together with the reliability. In addition, 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 the diagnosis table, the name of the disease and the degree of progression thereof are displayed more specifically. It has become. In addition, when the plot point is located in a region related to cancer diseases such as “large concern about colon cancer”, “great concern about early colorectal cancer”, “suspected early colorectal cancer” over a long period of time, It is displayed that there is a high possibility of The doctor can comprehensively judge the indicated plot points, the reliability of measurement, and the like, and can tell the subject of his / her physical condition. In addition to the diagnostic table in which the past measurement data is plotted over time, the medical institution terminal 16 also includes the reliability calculated with reference to the database, the data measured by various sensors, the stool volume, and the stool status. At least one of the stool status information, the bowel movement history information, and the subject attached odor gas graph (FIG. 7) can also be displayed.

  In addition, 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, the database on the server 12 side stores data on the medical condition of a subject who has visited a medical institution based on certain measurement data as a result of a precise examination at the medical institution. Yes. Therefore, the data measured by the biological information measuring system 1 of the present embodiment and the data relating the actual medical condition can be accumulated on the server 12 side. The diagnosis table on the server side is sequentially updated based on the measurement data of a large number of subjects accumulated in this manner, and more accurate diagnosis can be performed based on the updated diagnosis table. Also, 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 apparatus 10 via the Internet and displayed on the display device 68 of the remote controller 8. However, even if the physical condition display table is updated, the physical condition display table that is directly presented to the subject has been corrected to an appropriate content to be shown to the subject.

Next, with reference to FIG. 10, the data detected by each sensor provided in the biological information measurement system 1 of the present embodiment and the estimation of the gas amount based thereon will be described.
FIG. 10 is a graph schematically showing detection signals from the sensors provided in the biological information measurement system 1 in one defecation of the subject. FIG. 10 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 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 determination unit for determining the physical condition, that is, the CPU and storage device built in the remote controller 8 or the CPU of the server 12 and This is done in the storage device. The data analysis device 60 reads from the storage means of the remote controller 8 and starts the excretion action start time point, and the gas amount change rate threshold value and the gas amount that enables stable measurement. A stability threshold is set in advance. In addition, fart is included in the excretion act here.

First, at time t ₁ in FIG. 10, the room entry detection sensor 34 detects the entrance of the subject. The data analysis device 60 measures the amount of odorous gas with the odorous gas sensor 26 even in a state (time t _{0 to} t ₁ ) before the subject enters and exits the toilet room R by the entry detection sensor 34. . Even in this state, the odorous gas sensor 26 reacts and outputs a certain level of detection signal due to the influence of the fragrance and the residual stool adhering to the bowl 2a of the flush toilet 2. Thus, the measured value of the odorous gas sensor 26 before the subject enters the room is set as the environmental reference value of the gas amount that is residual gas noise. In the state before the entrance detection sensor 34 detects the 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 portion of the odorous gas sensor 26 is used. The temperature is set low, the rotational speed of the suction fan 18c is suppressed, and the flow rate passing therethrough is also low.

Next, when the entrance detection sensor 34 detects that the subject has entered the room at time t ₁ , 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, and the rotational speed of the fan of the suction device 18 increases, so that a predetermined flow rate of gas is sucked. As a result, the value detected by the temperature sensor 32 rises once and then converges to an appropriate temperature (from time t _{1 in} FIG. 10). That is, when the entrance detection sensor 34 which is the “toilet use preparation determination unit” determines that the subject enters the room, the control device 22 determines that the “defecation 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, a period (time t _{1 to} t _{8 in} FIG. 10) during which the entrance detection sensor 34 detects entry of the subject into the toilet room R is called one “defecation action”. . When the subject enters the room, the detection signal detected by the odorous gas sensor 26 increases. This is because the odorous gas sensor 26 reacts to the body odor of the subject, the perfume used, the hairdressing agent, and the like. That is, the increase from the residual gas noise before the subject enters the toilet room R (the difference between the detected data at time t _{1 and} the detected data at time t ₂ ) is due to odorous gas caused by the body odor of the subject. Yes, the increased detection data is obtained as second detection data for measuring the body odor of the subject. The odorous gas sensor 26 is set to extremely high sensitivity for the purpose of detecting an extremely small amount of odorous gas contained in the ppb order in the defecation gas discharged into the toilet bowl. It also reacts to odors that cannot be felt.

  Thus, when the subject enters the room, the detection signal detected by the odorous gas sensor 26 increases. When the data analysis device 60 is in the “defecation preparation period”, the increase in the detection signal is not adopted as the first detection data caused by the subject's defecation gas, but includes information related to the body odor of the subject. 2 adopted as detection data. That is, it is estimated that the increase in the detection signal of the odorous gas sensor 26 before the subject sits on the toilet seat 4 is due to the body odor of the subject, perfume, and alcohol sterilization of the toilet seat 4. The data analysis apparatus 60 prohibits the detection signal of the odorous gas sensor 26 during the defecation preparation period from being the first detection data in which the subject's defecation gas is detected, and erroneous detection in which body odor, perfume, and the like are detected as defecation gas Is preventing.

Further, the detection signal detected by the odorous gas sensor 26 during the defecation preparation period reacts to odorous noise due to odorous gas remaining in the toilet room and odorous gas adhering to the subject. it is conceivable that. In the present embodiment, the data analysis device 60 sets the detection level of odorous gas at the end of the “defecation preparation period” (detection signal at time t ₂ in FIG. 10) as a reference value for detecting defecation gas. To do. At the end of the “defecation preparation period”, since the subject has sufficiently approached the flush toilet 2 and undressing has been completed, the odorous gas is stable, which is suitable for setting a reference value for the detection level. In addition, since the opening of the flush toilet 2 is covered with the body of the subject during the period after the subject sits on the toilet seat 4 and starts to excrete, the state of the gas in the bowl 2a is also stable. It is suitable for setting the reference value of the detection level. Thus, the reference value of the detection level is preferably set according to the detection level before and after the transition from the “defecation preparation period” to the “defecation period”, that is, before and after the subject is seated. The reference value of the detection level is the detection level of odorous gas that has risen due to the body odor or the like of the subject, and is the same as the value of the second detection data.

Next, at time t ₂ in FIG. 10, when the subject is seated on the toilet seat 4 is detected by the seating detection sensor 36, this point is set as the starting point of one bowel movement period of the subject. In the present specification, a period during which the seating detection sensor 36 detects the subject's seating on the toilet seat 4 (time t _{2 to} t _{7 in} FIG. 10) is referred to as one “defecation period”.

In the example illustrated in FIG. 10, the detected value of the humidity sensor 30 increases between time t _{3 and} t ₄ after the subject is seated at time t ₂ . This is the detection of urination of the subject, and since the detection value of the odorous gas sensor 26 has hardly changed, the data analysis device 60 determines that no excretion is performed. In this way, urination by the subject hardly affects the detection value of the odorous gas sensor 26 because the discharged urine immediately enters the stored water in the bowl 2a. Then, the detection value of the hydrogen gas sensor 24 and odorous gas sensor 26 is up abruptly at time t _5. As described above, when the detected value of the odorous gas sensor 26 suddenly rises from the reference value of the odorous noise at a positive change rate equal to or more than a predetermined value during the defecation period after the subject is seated, the data analysis device 60 performs excretion. Judge that the action was performed.

  When such a sudden rise of the detection data is detected, the data analysis device 60 starts acquiring defecation gas detection data (first detection data) for physical condition measurement. That is, the rapid increase in the detection data by the odorous gas sensor 26 during the “defecation period” is very likely due to the excretion by the subject, and when such an increase is detected, detection after the rise is detected. The data is employed as the first detection data for physical condition analysis based on the subject's defecation gas.

When the excretion action is performed, the data analysis device 60 sets the detection value by the odorous gas sensor 26 to an increase from the reference value of the detection level (the hatched portion of the graph of the detection value by the odorous gas sensor 26). Based on this, the amount of odorous gas discharged 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 a detection level reference value (= second detection data) that is a noise level (including the subject's body odor) caused by the subject, Based on the detected value detected by the odorous gas sensor and the increment from the reference value, the amount of odorous gas associated with the first excretion action is estimated and physical condition analysis is performed. Thus, since the data analysis device 60 estimates the amount of odorous gas due to the defecation gas based on the difference from the reference value, the influence of noise on the measurement of the defecation gas caused by the subject can be suppressed. . 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 the fact. Similarly, the data analysis device 60 estimates the amount of hydrogen gas discharged from the subject based on the increase in the detected value by the hydrogen gas sensor 24 from the reference value. After excretion by the subject is performed (time t _{5 in} FIG. 10), the detection values by the odorous gas sensor 26 and the hydrogen gas sensor 24 return to the reference value of the detection level. Next, when a second excretion action is performed by the subject at time t ₆ , the detection values by the odorous gas sensor 26, the carbon dioxide sensor 28, and the hydrogen gas sensor 24 rapidly rise again. As for the second excretion action, similarly to the first excretion action, the amount of odorous gas and hydrogen gas discharged from the subject is estimated based on the increment from the reference value. In addition, when estimating the amount of odorous gas and hydrogen gas in the second and subsequent excretion actions, the standard value is changed each time in consideration of the effects of floating stools floating in the sealed water in the bowl. May be.

  In this way, when the subject has performed excretion multiple times after entering the room (that is, when a change in the gas amount equal to or greater than a predetermined threshold is detected multiple times), the stool associated with 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 actions, the reference value may be changed every time in consideration of the effect of floating stool floating on the sealed water in the bowl.

Then, by the seating detection sensor 36 unseated subjects completed defecation period once detected at time t ₇ in FIG. 10, the entrance detecting sensor 34 at time t ₈ the exit of the subject is detected, defecation once The action ends. The data analysis device 60 estimates the amount of stool gas associated with each excretion until the entry detection sensor 34 detects that the subject has left the room.

  Based on the first detection data and the second detection data thus measured, the body odor and physical condition of the subject are determined by the remote controller 8 and the server 12. At this time, it is desirable that the remote controller 8 can display the measurement of the physical condition during the defecation period or immediately after the defecation period. And if excretion is performed several times, since the stool accumulates in the bowl 2a, the accuracy of the measurement of the gas amount by the odorous gas is lowered. On the other hand, during the first excretion action, the defecation gas that reaches the most downstream of the large intestine is discharged, so that the most useful information for physical condition measurement can be obtained, and the measurement reliability is high. Based on these, on the remote control 8 side, when the amount of defecation gas (the amount of odorous gas and hydrogen gas) from the first excretion can be estimated, the subject is based only on the amount of defecation by the first excretion. Is measured and displayed on the display device 68 of the remote controller 8. Or a physical condition can also be measured so that the weighting of the measured value based on the detection data regarding the initial excretion action in one defecation action becomes heavier than the weighting regarding the late excretion action.

The physical condition display table (FIG. 6) displayed on the display device 68 shows the odorous gas concentration in the first detection data on the vertical axis and the hydrogen gas concentration in the first detection data on the horizontal axis. The physical condition of the subject is displayed as plot points on the table. On the other hand, the subject-attached odorous gas graph (FIG. 7) displayed on the display device 68 is based on the second detection data measured during the defecation preparation period, and shows the odorous gas adhering to the subject. Is. Here, as described with reference to FIG. 10, the first detection data is acquired for each excretion action (for example, times t ₅ to t ₆ in FIG. 10) during one defecation period. And since a test subject's physical condition is measured by the correlation of the odorous gas and health system gas which are contained in defecation gas, one plot point displayed on a physical condition display table is related to the same excretion act It must be based on the first detection data. Moreover, it is preferable that the detection data employ | adopted for the analysis of a physical condition are the things regarding the initial excretion action in one defecation period.

  On the other hand, on the server 12 side, it is desirable to perform a more accurate determination by using the total amount of defecation gas resulting from a plurality of excretion actions. For this reason, on the server 12 side, the total amount of defecation gas (total amount of odorous gas and hydrogen gas) due to multiple excretion actions, more preferably all included in one defecation period from sitting to sitting The physical condition of the subject is determined based on the total amount of defecation gas due to the excretion action. The determination of the physical condition of the subject on the server 12 side does not necessarily need to be the total amount of defecation gas due to all excretion actions included in one defecation period, but all excretion included in many defecation periods. It is preferably based on the total amount of defecation gas due to action.

  Here, in the example shown in FIG. 10, the reference value of the detection level is constant, but even when the reference value is not constant, the amount of odorous gas discharged can be estimated. For example, when the detection value detected by the odorous gas sensor 26 tends to increase, as shown in FIG. 11 (a), the increase in the detection value detected by the odorous gas sensor 26 before the start of the excretion act is increased. The auxiliary line A drawn with the rate of change continuing before and after the excretion action is taken as the reference value. The amount of the odorous gas can be estimated by determining that the time when the inclination of the detection value by the odorous gas sensor 26 greatly changes from the auxiliary line A is the time when one excretion is started.

  In addition, since estimation of the amount of odorous gas sets the detection value before the excretion action as a reference value and estimates based on the difference from the reference value, it is desirable that the reference value does not vary greatly. For this reason, the data analysis device 60 has a change rate of the detected value detected by the odorous gas sensor 26 before the start of the excretion action (that is, the change rate of the reference value = the slope of the auxiliary line A) is a predetermined value or less. In such a case, the notification means including the display device 68 or the speaker 70 of the remote controller 8 displays that the defecation gas amount is accurately estimated.

  On the other hand, when a spray-type fragrance is sprayed just before the excretion action, or when a disinfecting sheet or disinfection spray of an alcohol-based toilet seat disinfectant is used, it is detected by the odorous gas sensor 26 before the excretion action. The detection value fluctuates greatly. If such a state is set as a reference value, the amount of odorous gas cannot be estimated accurately. For this reason, when the reference value, which is the noise level caused by the subject, is greater than or equal to the predetermined value, or when the change rate of the reference value is greater than or equal to the predetermined value, the data analysis device 60 is A notification that the estimation accuracy of the defecation gas amount is low is performed by the notification means. When excretion is performed despite such notification, measurement for physical condition analysis is not performed or the measurement reliability is set low.

Next, with reference to FIG. 11B, detection of use of an alcohol-based toilet seat disinfectant will be described. FIG. 11B is a graph showing an example of a detected value by the odorous gas sensor 26 when the subject uses an alcohol toilet seat disinfectant.
At time t ₁₀ of FIG. 11 (b), after the entrance detecting sensor 34 is entry of the subject is detected, the detection value of the odorous gas sensor 26 gradually rises in response to body odor or the like of the subject. Next, when the subject takes out the toilet seat disinfecting sheet using the alcohol-based disinfectant at time t ₁₁ , the odorous gas sensor 26 reacts with the alcohol odor, and the detected value rises rapidly. 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 remaining off-flavor gas component, the inventors have found that the rapid increase in the detection value due to alcohol-based sterilization decreases after a while and measurement is possible. However, in the case of sterilization using an alcohol-based sterilization sheet, it may float in the sealed water when discarded. In this case, since the volatilization of the alcohol continues, the decrease tends to be delayed. Therefore, it is desirable to discharge the sheet as follows.

Then, after the seating detection sensor 36 detects the seating of a subject at time t _13, when the subject to perform a cleaning switch of washing by operating the (not shown) flush toilet second washing of the remote controller 8, distilled water bowl 2a Since the sterilization sheet floating on the odor gas sensor 26 is discharged, the detection value of the odorous gas sensor 26 rapidly decreases. When an alcohol-based disinfectant is used, the odorous gas sensor 26 generally changes in this way.

  For this reason, the toilet seat sanitization detection circuit built in the data analysis device 60 detects the entrance of the subject after the entrance detection sensor 34 detects the entrance of the subject and before the seat detection sensor 36 detects the seat of the subject. When the detected value rises rapidly over a predetermined value, it is determined that the subject has sterilized the toilet seat 4 and the like using an alcohol-based sterilizing agent. The present inventor can thus detect the sterilization action of the toilet seat 4, which is a specific action performed by the subject in the toilet room R, from the detection signals of the entrance detection sensor 34, the seating detection sensor 36, and the odorous gas sensor 26. Was found. In addition, when it is determined that the test subject is sterilized such as the toilet seat 4, it is difficult to measure the subject's body odor based on the odorous gas detected before and after the subject's seating. The second detection data used for measuring the body odor of the subject is not acquired.

  In addition, when the toilet sanitization detection circuit detects the use of the alcohol-based sanitizer and the flush toilet 2 is not washed for a predetermined time after the subject is seated, the data analysis device 60 includes the toilet flushing device 46. A signal is sent to and toilet flushing is performed automatically. Further, when the use of the alcohol-based disinfectant is detected, the rotational speed of the suction fan 18c is increased. As a result, the amount of gas sucked by the suction device 18 is increased, and the alcohol component volatilized by toilet seat sterilization is positively deodorized by the deodorizing filter 78, thereby reducing the detection value of the odorous gas sensor 26. it can.

  Further, when the use of the alcohol-based disinfectant is detected and the detection value of the odorous gas sensor 26 is rising, the physical condition measurement is stopped, a message is displayed on the display device 68 to wait for defecation, and the subject is informed. Inform. A message to wait for defecation is displayed on the display device 68 until physical condition measurement is possible. Thereby, the influence of the noise resulting from an alcoholic disinfectant is reduced. On the other hand, the detection value of the odorous gas sensor 26 that has risen rapidly due to the use of the alcohol-based disinfectant begins to decrease when the subject finishes disinfecting.

  When the noise level detected by the odorous gas sensor 26 starts to decrease, the message for waiting for defecation displayed on the display device 68 is deleted, and a notification that measurement is possible is made. That is, in a situation where the noise level caused by 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 point when the detection value of the odorous gas sensor 26 that tends to decrease rises as the release of defecation gas by the subject. However, in a state where the decrease in the noise level detected by the odorous gas sensor 26 is equal to or higher than the predetermined change rate, the physical condition measurement is stopped and the message indicating that the defecation is waited is continued. That is, in a state where the noise level is drastically reduced, an 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. In addition, it is desirable to stop the calculation while the reference value is greatly decreased because the error also increases.

  In addition, when the noise level is equal to or higher than a predetermined value due to the use of the alcohol-based disinfectant, the disinfecting noise countermeasure circuit stops the measurement for the physical condition measurement or sets the measurement reliability to be low. As described above, when the measurement reliability is set low, the plot points on the physical condition display table described with reference to FIG.

  On the other hand, when there are many attached stools in the flush toilet 2 or when a large amount of fragrance is used, the absolute value of the amount of gas detected by the odorous gas sensor 26 increases, and in some cases the detected value by the sensor In such a situation, it is difficult to accurately estimate the amount of odorous gas, which is a minute amount. For this reason, the data analysis device 60 does not perform measurement for physical condition measurement or sets the measurement reliability low even when the absolute amount of the reference value is equal to or greater than the third stability threshold.

Next, the update of the diagnostic table will be described in detail with reference to FIG.
In the database of the server 12, as described above, the measurement data of the odorous gas amount of the new subject and the gas amount of the health gas are sequentially accumulated. In the database of the server 12, the medical checkup result of cancer that the subject has received 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 diagnostic table based on the change in the history of the change in the gas amount of the odorous gas and the health-related gas, as well as the results of such a medical checkup for cancer.

  FIG. 12 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 healthy gas of the subject in the old diagnostic table, even if it is determined as "suspected early colorectal cancer", Suppose this patient is diagnosed with early colorectal cancer. In such a case, as shown in FIG. 12, “large colorectal cancer concern” and “early large bowel cancer concern” are included so as to include a portion corresponding to measurement data A of a subject diagnosed with early colorectal cancer. , Expand the area of "suspected early colorectal cancer", and narrow the area of "physical dysfunction level". On the contrary, for example, in the old diagnostic table, even if it is determined that “early colorectal cancer is suspected” from the correlation between the gas amounts of odorous gas and healthy gas, the result of the medical examination is suspected of cancer. If there are a large number of subjects diagnosed as having none, expand the “disease level” area, and narrow the “colon cancer concerns”, “early colorectal concerns”, and “early colorectal cancer suspects” areas . When the diagnostic table is updated, the areas of the display table are changed in the same manner.

  In addition, the server 12 stores a plurality of physical condition display tables that are categorized according to the tendency of the history of changes in the measurement data of the odorous gas and the health gas, and the attribute information such as the subject's weight, age, and sex. .

  When the subject-side device 10 wishes to perform a more detailed physical condition analysis, attribute information such as the subject's weight, age, and sex is registered in the server 12 together with the subject's identification information. Then, when the measurement data of the subject who desires this more detailed analysis is accumulated in the server 12, the server 12 selects a physical condition display table with conditions close to the history of changes in the attribute information and measurement data of the subject. . The server 12 transmits the selected physical condition display table to the subject apparatus 10 via the network. When the test subject side apparatus 10 receives a new physical condition display table from the server 12, the subject side apparatus 10 changes the already stored physical condition display table to the received physical condition display table. Thereby, in the subject side apparatus 10, the more accurate physical condition analysis according to a test subject's attribute and the log | history of measurement data can be performed.

  In the above-described embodiment, the subject-side device 10 is configured to store the history of the measurement data. However, the measurement data is not limited to this, and the measurement data is stored only in the database of the server 12, and the subject side The apparatus 10 may read a history of past measurement data from the database of the server 12 and perform a screening result calculation and a continuous diagnosis in the screening process S5.

Next, a biological information measurement system according to the second embodiment of the present invention will be described with reference to FIG.
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 need to be incorporated in the toilet seat.

  Fig.13 (a) is a figure which shows the state which attached the test subject side apparatus in the biological information measurement system by 2nd Embodiment to the flush toilet installed in the toilet room, The figure (b) is the figure ( It is a perspective view which shows the measuring apparatus of the test subject side apparatus shown to a). In addition, in 2nd Embodiment, compared with 1st Embodiment, only the structure of a test subject side apparatus is different. As shown in FIG. 13A, 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. 13 (b), the measuring device 106 includes a device main body 180, a duct 118a attached to the upper surface of the device main body 180 so as to extend in the lateral direction, and a tip portion bent downward, and the device And a power cord 182 connected to the main body 180. As shown in FIG. 13A, the measuring device 106 is fixed in a state where the end of the duct 118a is positioned in the bowl by hooking the end of the duct 118a on the side wall of the bowl of the flush toilet 2. .

  Similar to the first embodiment, the apparatus 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 discharged from a deodorized air outlet provided on the bottom surface of the apparatus main 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. Since the arrangement of the sensors in the duct 118a is the same as in the first embodiment, the description thereof is omitted. With such a configuration, the measuring device 106 of the present embodiment also uses the odorous gas sensor, the hydrogen gas sensor, and the carbon dioxide sensor to adjust the amount of odorous gas, hydrogen gas, and carbon dioxide contained in the defecation gas. The corresponding detection data can be acquired.

  The toilet seat 104 used together with the measurement 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 sterilization device. It is desirable to use a toilet seat with a washing function that can communicate with By using the measuring device 106 together with such a toilet seat, it is possible to perform various cleaning and sterilization operations when a strange odor gas is detected.

Next, with reference to FIG. 14, a biological information measuring system according to a third embodiment of the present invention will be described.
In the first embodiment, as shown in FIG. 3, in the gas detection device 20, the hydrogen gas sensor 24 is provided on the upstream side of the deodorizing filter 78, but such a configuration is not necessarily required. FIG. 14 is a diagram illustrating a configuration of a gas detection device in the biological information measurement system of the third embodiment. Note that the third embodiment differs from the first embodiment only in the configuration of the gas detection device. As shown in the figure, in the present embodiment, in the gas detection device 120, the arrangement of the hydrogen gas sensor 24 is different from the embodiment shown in FIG. In the present embodiment, the hydrogen gas sensor 24 is provided downstream of the deodorizing filter 78 in the intake passage 18b. According to 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 odorous gas is detected from data output by the hydrogen gas sensor 24. Can be removed.

Next, with reference to FIG. 15, a biological information measuring system according to a fourth embodiment of the present invention will be described.
In the first embodiment, the detection value of the odorous gas is calculated by subtracting the detection value detected by the hydrogen gas sensor 24 from the detection value detected by the odorous gas sensor 26 to separate the influence of hydrogen gas. The present invention is not limited to this. For example, the influence of hydrogen gas can be separated by shifting the arrival time of hydrogen gas and odorous gas to the odorous gas sensor 26 as described below.

  FIG. 15 is a diagram illustrating a configuration of a gas detection device according to a fourth embodiment configured to separate the influence of hydrogen gas by shifting the arrival time of hydrogen gas and odorous gas to the odorous gas sensor. . Note that the fourth 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, 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. However, in this embodiment, both the hydrogen gas and the odorous gas are detected by a single semiconductor gas sensor.

  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. Branches at The filter 72 is a filter that does not have a deodorizing function, and passes odorous gas and hydrogen, and prevents 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.

  By the suction fan 18c, the defecation gas in the bowl 2a of the toilet bowl is sucked into the intake passage 18b 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 after the deodorizing filter 78 removes gas components such as odorous gas, Returned to the bowl 2a.

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

  The flow path switching valve 284 is opened only during a part of the excretion action (for a very short time), and part of the stool gas flowing through the intake passage 18b (a part of the time during the excretion action of the subject). This is a valve for drawing into the branch path 283b. The flow path switching valve 284 is provided in the uppermost stream 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, for example, filling a thin fiber material or the like in an elongated pipe. The column 286 is a mechanism that causes a difference in gas passage time depending on the molecular size (molecular weight) based on the principle of gas chromatography.

  On the upstream side of the semiconductor gas sensor 288, a sensor heating heater 54 is provided for heating the detection part of the semiconductor gas sensor 288 to a predetermined temperature and removing the off-flavor gas component adhering to the semiconductor gas sensor 288.

  A small amount of defecation gas that has passed through the filter 72 flowing through the intake passage 18b flows into the branch path 283b by the flow path switching valve 284. Then, when the pump 290 is driven, hydrogen and odorous gas contained in the defecation gas pass through the column 286 and reach the semiconductor gas sensor 288 over a different time depending on the molecular weight according to the principle of gas chromatography. 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 an odorous gas having a large molecular weight hardly passes through the column 286 and 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. 16 is a diagram showing a detection waveform detected by the semiconductor gas sensor of the gas detection apparatus shown in FIG. 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 in a state of being temporally separated from the hydrogen gas and the odorous gas. In particular, excretion is performed in a short time, and defecation gas including hydrogen and odorous gas is released only for a short time. As described above, since the defecation gas is released in a short time, by providing the column 286 upstream of the semiconductor gas sensor 288, the time until the hydrogen gas and the odorous gas reach the semiconductor gas sensor can be shifted. The semiconductor gas sensor 288 can detect the amount of hydrogen gas and the amount of odorous gas. In this case, the inventors also adopted a method of determining the physical condition based on the correlation between healthy gas and odorous gas without measuring the total amount of methyl mercaptan gas correlated with cancer. This is based on the technical knowledge that it is only necessary to measure gas during a specific period. If a reduction sensor is used, it may be inexpensive, but it becomes difficult to separate a large amount of hydrogen contained in the defecation gas. On the other hand, according to the present embodiment, since the measurement is performed only for a small specific period, hydrogen separation is facilitated and practicality can be realized with an extremely inexpensive sensor.
In this embodiment, the arrival time of hydrogen and odorous gas to the semiconductor gas sensor 288 is shifted by the column 286, but it is also possible to shift the arrival time of methane contained in the defecation gas as a matter of course. . Thereby, it is also possible to separate not only hydrogen but also the influence of methane from detection data detected by the semiconductor gas sensor.

According to the biological information measurement system of the embodiment of the present invention, the odorous gas during the defecation period (time t _{2 to} t _{8 in} FIG. 10) of the subject is acquired as the first detection data, and the defecation action is started. since acquiring the previous defecation preparation period in odorous gas (time t ₁ ~t ₂ in FIG. 10) as the second detection data, based on the behavior in time of the subject's defecation, odorous gas adhering to defecate gas and subject Can be easily identified.

  Moreover, according to the biological information measurement system of this embodiment, the risk of digestive system diseases such as colorectal cancer can be analyzed by physical condition analysis based on the first detection data (FIGS. 5 and 6). 2 Risks such as liver diseases can be analyzed by physical condition analysis based on the detection data (FIGS. 5 and 7). In addition, by independently outputting these temporal changes to the display device 68, it is possible to notify the risk without imposing an unnecessary psychological burden on the subject.

  Furthermore, according to the biological information measuring system of the present embodiment, different aspects of the health condition of the subject are independent due to the temporal change of the first detection data (FIG. 6) and the temporal change of the second detection data (FIG. 7). Therefore, it is possible to give the subject an effort to recover his physical condition and motivation for consultation without giving an unnecessary psychological burden to the subject.

According to the biological information measuring system of the present embodiment, the odor gas corresponding to the second detection data (detection value at time t ₂ in FIG. 10) is the first detection data as odorous Gasunoizu due to the subject ( 10 is excluded from the detection values at times t ₅ to t ₆ in FIG. 10), so that defecation gas can be accurately measured.

Furthermore, according to the biological information measurement system of the present embodiment, the increment of the first detection data from the value of the second detection data (increment of the detection value at times t ₅ to t ₆ in FIG. 10) is the subject. Since the body condition is analyzed as an odorous gas based on the defecation gas, the defecation gas can be accurately measured with simple data processing.

According to the biological information measuring system of the present embodiment, after the entry or approach of the subject is detected (S2 in FIG. 4, and time t ₁ in FIG. 10), since the gas detection device 20 is in the measurement state The first detection data and the second detection data can be obtained accurately. Moreover, before the entry or access is detected by the entry detection sensor 34, the gas detection apparatus 20 is the measurement standby state because it is the (S1 in FIG. 4, the time t ₀ ~t ₁ in FIG. 10), a gas detector 20 It is possible to prevent deterioration of the odorous gas sensor 26 incorporated in the battery and extend its useful life. In addition, by setting the measurement standby state, it is possible to suppress accumulation of sulfur components contained in the remaining odorous gas in the detection unit of the odorous gas sensor 26, and to reduce the power consumption of the odorous gas sensor 26. Can be reduced.

  Furthermore, according to the biological information measurement system of the present embodiment, the first detection data is analyzed based on the temporal change (FIG. 6) of the correlation between the odorous gas and the health gas, and the second detection data is the odorous gas. Since the analysis is based on the change over time (FIG. 7), the influence of measurement errors in one measurement can be suppressed, and the subject can be accurately determined based on the stool gas and the odorous gas adhering to the subject. The physical condition of can be measured. Moreover, since the temporal change of 1st detection data and 2nd detection data is displayed on the display apparatus 68, a test subject can recognize the long-term change of an own physical condition correctly.

  Moreover, according to the biological information measurement system of this embodiment, since the analysis result of the second detection data is displayed as representing the body odor of the subject (FIGS. 5 and 7), the subject displays the display of the daily body odor. It can be used for checking.

R Toilet room 1 Biological information measuring system according to the first embodiment of the present invention 2 Flush toilet 2a Bowl 4 Toilet seat 6 Measuring device 8 Remote control 10 Subject side device 12 Server 14 Terminal for subject 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 Odor gas sensor 28 Carbon dioxide sensor 30 Humidity sensor 32 Temperature sensor 34 Entrance detection sensor (first detection sensor)
36 Seating detection sensor (second detection sensor)
DESCRIPTION OF SYMBOLS 38 Defecation / urination detection sensor 40 Toilet lid opening / closing device 42 Nozzle drive device 44 Nozzle cleaning device 46 Toilet bowl cleaning device 48 Toilet bowl sterilization device 50 Air freshener sprayer 52 Deodorized air supply device 54 Sensor heating heater 56 Transceiver 58 Duct cleaner 59 Humidity adjustment device 60 Data analysis device 62 Subject identification device 64 Input device 66 Transmitter / receiver 68 Display device 70 Speaker 72 Filter 78 Deodorization filter 101 Biological information measurement system 104 of second embodiment Toilet seat 106 Measuring device 118a Duct 180 Device body 182 Power cord 120 Gas Detector 220 of the Third Embodiment Gas Detector 283a of the Fourth Embodiment Main Path 283b Branch Path 284 Channel Switching Valve 286 Column 288 Semiconductor Gas Sensor 290 Pump

Claims (9)

A biological information measuring system for measuring the physical condition of a subject based on defecation gas discharged into a bowl of a flush toilet,
A suction device for sucking the gas in the bowl from which the fecal gas has been discharged by the subject;
A gas detection device comprising a gas sensor that reacts with odorous gas other than methyl mercaptan gas and methyl mercaptan gas, which is an odorous gas containing a sulfur component contained in the gas sucked by the suction device;
A control device for controlling the suction device and the gas detection device;
Based on the detection data detected by the gas detection device, a data analysis device for analyzing the physical condition of the subject,
An output device for outputting the analysis result by the data analysis device,
The data analysis device acquires first detection data obtained by detecting the odorous gas contained in the defecation gas during the defecation period of the subject by the gas detection device, and the defecation preparation period before the defecation action is started The second detection data obtained by detecting the odorous gas adhering to the subject in the gas detection device is acquired, and the physical condition of the subject is measured based on the first detection data and the second detection data. A biological information measuring system characterized by the above.   The biological information measurement system according to claim 1, wherein the data analysis device stores the first detection data and the second detection data independently, and causes the output device to output the change over time independently.   The change over time of the first detection data and the change over time of the second detection data are each independently used to evaluate different aspects of the subject's health, and the output device separates each evaluation. The biological information measuring system according to claim 2, which is output as a result.   The biological information measurement system according to claim 3, wherein the data analysis apparatus excludes the odorous gas corresponding to the second detection data as odorous gas noise caused by the subject when analyzing the first detection data. .   5. The biological information measuring system according to claim 4, wherein the data analysis device analyzes the physical condition of the increase in the first detection data from the value of the second detection data as the odorous gas based on the defecation gas of the subject. .   Furthermore, the 1st detection sensor which detects the entrance of the test subject to the room where the flush toilet is installed or the flush toilet, and the second detection which detects the seating action on the toilet seat of the flush toilet The gas detection device is in a measurement standby state before entering the room or approaching by the first detection sensor, and after entering or approaching by the first detection sensor. The gas detection device is set in a measurement state, the second detection data is acquired until the seating behavior is detected by the second detection sensor, and the seating behavior is detected by the second detection sensor. The biological information measurement system according to claim 4, wherein acquisition of the first detection data is started.   The gas detection device also acquires a health 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 as the first detection data. The data analysis apparatus is configured to analyze the first detection data based on a temporal change in the correlation between the odorous gas and the health gas, and to analyze the second detection data of the odorous gas. The biological information measuring system according to claim 6, wherein analysis is performed based on a change with time.   The output device outputs an analysis result of the first detection data as a change with time of the correlation between the odorous gas and the health gas, and an analysis result of the second detection data with a change with time of the odorous gas. The biological information measuring system according to claim 7, wherein the biological information measuring system is configured to output as:   The biological information measuring system according to claim 4, wherein the output device is configured to output an analysis result of the second detection data obtained by detecting odorous gas adhering to the subject as representing the body odor of the subject.