JP4736118B2 - Urination information measuring toilet - Google Patents

Description

  The present invention relates to setting a measurement environment for urination information according to the pressure fluctuation state in a sewage drain pipe peculiar to a site transmitted to a toilet connected to a sanitary equipment pipe, and particularly relates to urine volume, urine flow rate, etc. The invention relates to a toilet for measuring urination information suitable for realizing both a predetermined urination information measurement function and improving usability of the urination information measurement function.

  Conventional toilets for measuring urination information such as urine volume and urinary flow rate use a commonly used trap-type toilet bowl as a urine collection container, and a standby water level in which the water level in the toilet bowl is used as a normal toilet Measurement start water level (water level when actually starting measurement) lower than the overflow water level (water level when the water in the ball section overflows from the trap and drains into the sewer pipe) After measurement, there is a measurement in which the water level change associated with urination is measured, and the result is converted into a change in the amount of accumulated water to obtain urination information (see, for example, Patent Document 1).

  In this case, the change in the water level of the ball reservoir water can be measured in principle from the water level where the ball reservoir water is zero, but in the normal trap type toilet used in this example, the sewage pipe and toilet The trapping water that functions as a sealed water that blocks communication with the atmosphere inside the trap is formed to prevent sewage odors and sanitary pests generated inside the sewage pipe from entering the toilet.

Therefore, if the water level is lower than the trap water level of the trap (the water level that completely submerges the trap port opening on the toilet bowl surface), the trap will be in a sealed state and the backflow / diffusion of odor from the sewage pipe will be a problem. Become.
In addition, if the water level of the stored water exceeds the overflow water level of the trap, an overflow occurs in which the ball part stored water flows out into the sewage pipe.

  In other words, in the form in which the trap-type toilet is used for measurement, the range of the stored water level that can be used for measurement is limited to the range from the sealed water level to the overflow water level, and the measurement start water level is also within this range. Must be set. Moreover, the amount corresponding to the amount of stored water from the set measurement start water level to the overflow water level is the maximum measurable urine volume value.

On the other hand, the pressure in the sewage pipe to which the toilet is connected fluctuates depending on the state of use of other connected equipment, and if the pressure fluctuation is excessive, all the accumulated water is sucked into the sewage pipe at negative pressure. At positive pressure, the accumulated water blows out of the ball. In order to prevent the occurrence of these phenomena, in the air conditioning and sanitary engineering standard SHASE-S206, the pressure fluctuation level generated in the sewage pipe is designed to be within atmospheric pressure ± 40 mmAqa. And request.

  And when such a pressure fluctuation in the sewage pipe occurs, the water in the toilet bowl is also affected by the pressure fluctuation, and the water level of the ball portion water that is the object of measurement in the present invention also changes. Therefore, if the water sealing depth at the measurement start water level (the depth from the water level where the trap port opening on the toilet bowl surface is completely submerged to the water level at that time) is too small, the pressure of the sewage pipe Even if the fluctuation is within the above-mentioned standard, the trap is likely to be in a sealed state, and the backflow / diffusion of odor from the sewage pipe into the toilet bowl becomes a problem. Dirt is likely to occur on the surface.

  Therefore, the measurement starting water level must not break even at the maximum pressure fluctuation level of the above-mentioned standard, and is a range that is higher than the water level that is higher than the trap sealing water level by taking into account the pressure fluctuation of this sewage pipe. Will have to be set. In this case, the higher the measurement start water level, the smaller the amount of excreted urine, the more urine mixed water in the ball portion overflows the trap, and the smaller the maximum urine volume value that can be measured, that is, the measurable range becomes narrower.

  Here, the amount of urination of the subject whose urine volume measurement is intended is not only to measure the amount of urination once, but also to measure the amount of urine collected by collecting multiple urine excreted for a certain period of time, for example. The Therefore, the larger the maximum urine volume value that can be measured, that is, the wider the measurable range, the more measurement opportunities can be accommodated.

  Therefore, in the case where a trap-type toilet is used for measurement and the measurement range is wide, it is necessary to set the measurement start water level as low as possible within the settable range. That is, the sealing depth must be reduced.

  However, the normal trap-type toilet used in this document example has the maximum amount of water stored on the ball surface from the sealed water level to the overflow water level, that is, the maximum urine volume that can be measured in one measurement. Such a urine volume measurement is not so much with respect to various urination volumes of the subject. Therefore, as long as such a toilet is used, the lower the measurement start water level in order to increase the measurable range, the smaller the sealed water depth (the depth from the sealed water level position to the stored water level position at that time), There is a high possibility that a broken state occurs with respect to the pressure fluctuation of the sewage pipe described above.

  What has been described so far has been various problems mainly related to the measurement start water level, but there are also the following problems with respect to the standby water level. That is, for equipment connected to a sewage pipe such as a toilet, the building standard law construction ordinance (hereinafter referred to as “law”) requires that the sealing depth be 50 mm or more and 100 mm or less. Therefore, since this law also applies to the urination information measuring toilet, as long as the law is complied with, it is necessary that the water level in the standby state in which the measurement is not performed should be at least 50 mm of the sealed water depth.

  Therefore, the measurement start water level can be set as appropriate within the above-mentioned range due to various factors, but when the standby water level and the measurement start water level are set to different water levels, the water level of the stored water is measured from the standby water level during measurement. The measurement preparation operation for changing to the starting water level takes time, and there is a problem that the subject cannot urinate immediately even when going to the toilet, and the usability is deteriorated.

  On the other hand, if the standby water level and the measurement start water level are set to the same water level, it is possible to immediately urinate and start measurement, but if the standby water level is a water level that complies with the above laws, the measurement start water level is At a minimum, the sealing depth must be a water level of 50 mm. Therefore, the measurable range becomes narrow as described above, and the objects to be measured are limited.

As described above, the measurement specifications of the urine information measuring toilet relating to the present invention are related to factors such as the pressure fluctuation amount of the sewage pipe, the measurable range, and the measurement time including the preparation operation.
That is, since the pressure fluctuation amount of the sewage pipe is determined by the facility piping design specification of the building, the maximum value of the pressure fluctuation that actually occurs differs depending on the site where the urine information measuring toilet relating to the present invention is installed.
In addition, the maximum urine volume value required for the measurable range varies depending on the usage pattern at the installation site.
Furthermore, the convenience of the measurement time including the preparation operation varies depending on the situation of the installation site such as the subject's preference and usage pattern.

  As described above, when setting the water level of the urination information measuring toilet relating to the present invention, it is assumed that different settings are necessary depending on the situation of the installation site, but this situation of the installation site is not actually installed. And the true optimal condition is of unknown nature.

WO2004 / 113630

The present invention has been made to solve the above problems, and the object of the present invention is to perform a preparatory operation without impairing the function of the original toilet, such as preventing the breaking of a toilet trap caused by pressure fluctuation in the sewage pipe. It is to provide a urine information measuring toilet that can solve the problems related to measurement such as shortening the measurement time including measurement and ensuring the measurement range according to the situation of the installation site.

In order to achieve the above object, according to the first aspect of the present invention, a ball for receiving a user's urine;
A trap that allows the ball and the sewage pipe to communicate with each other and that forms a pool of water that seals the sewage pipe;
Measurement of the water level of the stored water when the user starts urination for measurement, and the standby water level that is the level of the stored water that is formed after using the toilet and waits until the next use of the toilet Water level forming means for forming a starting water level at a predetermined set water level;
Water level measuring means for measuring the level of the stored water in the ball,
In the urination information measurement toilet for obtaining urination information including at least the urine volume with respect to the urine excreted in the ball by the user based on the measurement value of the water level measurement means,
A sewage pressure fluctuation influence measuring means for measuring a sewage pressure fluctuation influence quantity as an influence quantity of the pressure fluctuation in the sewage pipe on the water level of the stored water ;
A stored water level selection means for selecting the set water level based on a measurement result of the sewage pressure fluctuation influence amount measurement means ,
The water level forming means forms the water level of the stored water at the selected set water level,
By allowing the set water level of the standby water level and the measurement start water level to be set to a predetermined water level according to the pressure fluctuation in the sewage pipe ,
By acquiring information necessary for water level setting such as pressure fluctuation state and measurement range of sewage piping as water level setting information, setting of measurement specifications for different devices at each site where urination information measuring toilets are installed Since it can be changed according to the environment, it is optimal for the installation environment of the device while preventing the occurrence of measurement errors due to overflow of accumulated water during measurement and the occurrence of backflow of odor due to the toilet blockage. Urination information can be measured.

According to the invention of claim 2 , the stored water level selection means has a predetermined value of the sewage pressure fluctuation amount as a threshold for selecting the set water level,
Observations of the measured predetermined period of the lower pressure-change impacts amount measuring means,
When below the threshold ,
The stored water level selection means selects a first predetermined water level that is predetermined as the standby water level and the measurement start water level, and the water level forming means forms the first predetermined water level that is selected after the use of the toilet. Wait until use,
When the observed value exceeds the threshold value,
The stored water level selection means has a predetermined second predetermined water level that is higher than the first predetermined water level as the standby water level and lower than or equal to the overflow water level of the toilet , and from the first predetermined water level as the measurement start water level. While selecting a predetermined third predetermined water level with a low water level,
The water level forming unit waits until the next use when forming said second predetermined level which is selected after use the toilet, and the water level in the third predetermined level which is selected before the start of measurement when the next use By forming , characterized by
When the amount of influence of sewage pressure fluctuation is small, measurement can be performed immediately without waiting for the measurement preparation operation. It is possible to automatically set the measurement specifications for operability and urination information that are optimal for the sewage pressure fluctuation environment at the site where it is possible to prevent erroneous measurement due to overflow.

According to the invention described in claim 3 , the second predetermined water level is an overflow water level,
Since the standby water level is the overflow water level, the accuracy of the water level setting means for forming the set water level is not required so much and the configuration of the apparatus is simplified. Further, since the water level can be set in a normal toilet flushing operation and an operation only for measurement is not required, the measurement cycle time required for one measurement can be shortened, and the next measurement can be performed in a shorter time.

Further, according the invention of claim 4, wherein the accumulated water level selecting means, regardless of at least one of the set water level of the standby level or measurement start water level measurement result of the lower pressure variation effect level measuring means manually By having a setting water level designation means designated by
It was possible to leave the decision of whether to prioritize usability or hygiene to the idea of the equipment manager at the installation site.

Further, according to the invention of claim 5 , when the sewage pressure fluctuation influence measuring means measures a pressure value different from the observed value used for selecting the water level selecting means during urination information measurement,
By adding information on measurement reliability to the results of urination information measurement,
Medical personnel who use urination information can consider treatment after grasping the reliability of measurement values, so that it is possible to prevent treatment errors from occurring and to respond promptly even if treatment errors occur. Can be encouraged.

According to the invention of claim 6, the sewage pressure fluctuation influence measuring means is a sewage pressure measuring means for measuring sewage pressure,
Since the pressure fluctuation in the sewage discharge pipe was measured and the amount of water level change it gave to the stored water level was calculated as the influence amount.
By simply providing a pressure sensor, there is no need to perform extensive processing on the toilet, and it is possible to easily determine the amount of influence received by the ball portion and the trap water in the trap.

According to the present invention, it is possible to set the device specifications such as the set water level and measurement range of the urine information measurement toilet in consideration of the pressure fluctuation state in the sewage drain pipe at the installation site and the judgment of the site manager. There is an effect that conflicting problems such as prevention of trap breaking, shortening of the measurement time including preparation operations, and securing of a measurement range can be individually set according to the situation at the installation site.

  FIG. 1 is a perspective view showing the entire urination information measuring toilet (hereinafter referred to as “this device”) in the first embodiment of the present invention. The usage of the subject and the facility manager will be described with reference to FIG.

The urination information measuring toilet 101 in the present embodiment includes a Western-style toilet 102, various functional units that operate the urine information measuring toilet 101, and a cabinet 104 in which the control unit 120 is housed. In this embodiment, the urine collecting device 114 for measuring the concentration of a specific component in the urine and the sanitary washing device incorporated in the toilet bowl are both provided, but none of them is essential for urine volume measurement.
The western-style toilet 102 is made of earthenware, and a resin toilet seat 110 and a toilet lid 112 are rotatably attached to the upper part thereof.

  On the wall, a urine information measuring unit remote control 134 and a printer 136 for outputting measurement results and the like are installed as an operation / display unit 122 for operating the urination information measuring toilet. Further, a sanitary washing device remote controller 132 for operating the sanitary washing device incorporated in the toilet bowl is provided side by side, but it is not essential for the urination information measuring toilet.

  The urination information measuring unit remote control 134 is operated when the subject enters the tray and measures urination information, and is provided with a preparation operation switch indicating the intention to start measurement and a urination end switch indicating that urination has ended. . The urine information measuring unit remote controller 134 is provided with reading means such as a personal authentication switch and an ID card in order to acquire time-dependent data of the subject.

  Although the measurement result is disclosed to the subject using the printer 136, it may be disclosed to the subject on the display unit of the urination information measuring unit remote control 134. Furthermore, when this urination information measurement toilet is installed in a medical institution, it is also possible that the nurse operates the urine information measurement unit remote control 134 at a predetermined time to extract data from the printer 136 for a plurality of subject data. .

FIG. 2 is a block diagram showing the configuration of this embodiment.
The toilet 1 is connected to a sewage pipe 9 through a drain socket 10. The stored water 4 is formed by the trap 5 with respect to the sewage pipe 9, and the sanitation is taken into consideration so that odors and sanitary pests generated in the sewage pipe do not enter the toilet. A ball 2 is formed on the inside of the toilet 1 to be excreted by a subject, and the ball 2 is cleaned by the water supply from the water level forming means 6 to the rim water spouting nozzle 7. A siphon phenomenon is generated by supplying water to the water discharge nozzle 8, and excreta is sent to a sewage pipe.

  The water level forming means 6 includes a rim water discharging means 71 and a jet water discharging means 81 for supplying water to the rim water discharging nozzle 7 and the jet water discharging nozzle 8 of the toilet 1, respectively. The supply flow path from the jet water discharge means 81 to the jet water discharge nozzle 8 has a branch portion 82, and a pressure guiding water path 83 to the stored water level measurement means 14 is branched and connected. The pressure guiding channel 83 is for transmitting the water level head of the stored water 4 to the stored water level measuring means 14 in order to measure the stored water level.

  The water level forming means 6 includes a jet water discharging means 81 for discharging accumulated water by a siphon phenomenon, a rim water discharging means 71 for supplying water to the empty ball 2, and a water replenishing means 91 for setting an accurate water level. It consists of In this embodiment, the water flow operation by the water replenishing means 91 is supplied to the ball 2 from the jet water discharge nozzle 8 via the branch portion 82.

  A sewage pressure fluctuation influence measuring means 16 is connected to the drain socket 10 which is a connection portion with the sewage pipe. The water level forming means 6, the stored water level measuring means 14, the operation / display unit 22, and the sewage pressure fluctuation influence measuring means 16 are connected to a common control unit 15, respectively for controlling the water supply operation, measuring urination information, Various controls such as the operation reception process of the test subject and the output of the measurement result are performed.

  Here, the sewage pressure fluctuation influence measuring means 16 measures the influence quantity that the pressure fluctuation of the sewage pipe to which the present apparatus is connected has on the water level of the toilet water used by the present apparatus for urine volume measurement. In this embodiment, a pressure sensor 121 (described later) is installed in a conduit communicating with the drain socket 10, and the pressure variation of the toilet trap 5 is measured as the influence amount factor. As a method of installing the pressure sensor 121, any installation form can be used as long as the pressure fluctuation of the sewage pipe can be measured. In addition to this, it is also possible to adopt a method of installing in the toilet trap or measuring the pressure fluctuation of the sewage pipe section.

  In addition to this, as a method of measuring the influence amount, it is also possible to employ a method in which various water level measuring means usually used for measuring the water level change of the stored water caused by the influence of the pressure fluctuation of the sewage pipe are provided. Is possible. In this case, since the amount of change in the water level due to the pressure fluctuation of the sewage pipe, which is the background of the present invention, can be obtained directly, correction of the stored water level measurement value obtained by actual urine volume measurement is simplified.

  The control unit 15 also has a built-in water level selection means 17 for selecting the set value of the water level of the stored water 4 using the measured value of the sewage pressure fluctuation influence measuring means 16, and the water level is formed according to the result. The means 6 is operated. In addition, the control unit 15 uses various measurement results calculated by the urination information calculation unit 18 and measurement environment information such as personal authentication results and measurement times as medical information such as doctors and nurses who use measurement data as well as subjects. External input / output means (not shown) is provided for communication between the parties concerned and the facility manager who manages the operation of the toilet for measuring urination information.

In the present embodiment, a pressure sensor capable of taking an output proportional to the change in the water level is used as the water level detecting means of the stored water level measuring means 14.
The measurement principle is that the water level measurement value obtained by the pressure sensor is converted into the amount of stored water from a calibration curve obtained from the relationship between the stored water level and the amount of stored water, and the amount of urine is calculated from the difference in the amount of stored water before and after urination. The urination information such as the urine flow rate is obtained from the differential coefficient of the accumulated water volume fluctuation curve over time, and the urination volume at an arbitrary time from the start of measurement is accurately calculated by performing this continuously during urination. be able to. In this case, since the water level fluctuation can be directly measured, the configuration of the apparatus is simplified.

  Other examples of the water level detection means include a non-contact ultrasonic displacement sensor provided in the toilet 1 and can be expected to operate with high reliability since it does not come into contact with sewage.

  The stored water level measurement unit 14 also includes a vibration isolation unit 14a that removes the influence of the ripple of the stored water and a calibration unit 14b that performs a calibration operation for the water level measurement value.

  The sewage pressure fluctuation influence measuring means 16 measures the influence quantity of the pressure fluctuation in the sewage drain pipe on the accumulated water level. The pressure sensor for directly measuring the pressure fluctuation in the sewage drain pipe, which will be described later, A water level sensor that measures the amount of change in the stored water level caused by pressure fluctuation is used.

The urine volume measurement performed by the urination information measuring toilet which is the subject of the present invention is to measure the change in the level of the stored water in the bowl part of the toilet. As described above, the stored water in the ball part is passed through a trap. Since it is connected to the sewage pipe, the water level of the stored water is affected by pressure fluctuations in the sewage pipe.
FIG. 3 is a schematic diagram of the behavior of accumulated water due to pressure fluctuation in the sewage pipe. With reference to FIG. 3, the influence of the pressure fluctuation in the sewage pipe will be described.

  FIG. 3A is a diagram showing the water level in the ball 2 and the trap 5 when the pressure in the sewage pipe is equal to the atmospheric pressure, and FIG. 3B is a diagram in which the pressure in the sewage pipe is negative. (C) is a figure which shows the water level in the case of a positive pressure.

  As shown in FIG. 3A, when the pressure in the sewage pipe is equal to the atmospheric pressure, the water level in the ball 2 and the water level in the trap 5 are equal. On the other hand, as shown in FIG. 3B, when the pressure in the sewage pipe becomes negative, the accumulated water in the trap 5 is sucked toward the sewage pipe, so that the water level in the trap 5 rises. The water level in the ball 2 is lowered. On the other hand, as shown in FIG. 3C, when the pressure in the sewage pipe becomes positive, the accumulated water in the trap 5 is pushed, the water level in the trap 5 is lowered, and the water level in the ball 2 is raised. .

As described above, the sewage pressure fluctuation in the sewage drain pipe is an influence factor to be considered in the measurement of urination information by the urination information measurement toilet targeted by the present invention. As a countermeasure, in the embodiment of the toilet for measuring urination information to which the present invention is applied, the apparatus automatically sets the standby water level and the measurement start water level according to the magnitude of the pressure fluctuation generated in the sewage drain pipe where the urine is installed. Select
FIG. 4 is a schematic diagram showing the stored water level at the time of measurement standby and at the time of measurement in the embodiment of the present invention corresponding to the pressure fluctuation in the sewage pipe. With reference to FIG. 4, the concept of the response | compatibility to the pressure fluctuation in sewage piping is demonstrated.
Note that the maximum sealing depth of a toilet is determined by the structure unique to the toilet and is referred to herein as “mechanical sealing depth”.

  FIG. 4A shows the stored water level and the sealing depth during standby and measurement when the pressure fluctuation generated in the sewage discharge pipe is smaller than a predetermined value (set water level mode 1). Thus, the standby water level at the time of standby and the measurement start water level at the start of measurement are set to the same water level (first predetermined water level). FIG. 4B shows the stored water level at the time of standby and when the pressure fluctuation generated in the sewage drain pipe is larger than a predetermined value (set water level mode 2). Thus, the standby water level is the same as the overflow water level (second predetermined water level), and the water level at the start of measurement is lower than the measurement start water level (third predetermined water level in FIG. 4A). ).

  Note that when setting the predetermined value for pressure fluctuation as described above, even if the water level changes due to pressure fluctuation, the standby sealing depth and maximum measurable urine volume value set as the specifications of this device are secured. It is assumed that it can be done. Here, as described above, the standby sealing water depth is structurally required to be 50 mm or more according to the law. In addition, the maximum measurable urine volume value is required to cover the maximum urinary volume normally excreted by a subject who is an inpatient such as a hospital (according to survey data, about 800 mL).

  Therefore, in this example, the maximum measurable urine volume value of 800 mL or more is set as the specification value for the toilet with a mechanical seal depth of 78 mm, and the measurable urine volume value is set to the maximum within the range in which the standby seal depth complies with laws and regulations. It was 50 mm that can be increased. Further, the predetermined value of the pressure fluctuation was set to ± 10 mmAqa which is considered to occupy many cases of the pressure fluctuation at the installation place by the survey data. Therefore, in this embodiment, the setting shown in FIG. 4B is used at a site where the pressure fluctuation generated in the sewage drain pipe exceeds ± 10 mmAqa, and the setting shown in FIG. 4A is used at the site where the pressure fluctuation does not exceed ± 10 mmAqa. To do.

As shown in FIG. 4A, when the measurement start water level is set to the standby water level, the standby water seal depth is required to be structurally 50 mm or more by law as described above. The water level must be set to a depth of 50 mm or more. Therefore, in this embodiment, the measurement start water level must be a high water level with a sealing depth of 50 mm or more. On the other hand, since the maximum measurable urine volume value is determined by the difference between the accumulated water levels of the overflow water level and the measurement start water level, the measurable maximum urine volume value must be smaller than that of the mode of FIG. 4B. I don't get it.
As for the toilet bowl which is called a normal trap type toilet, the mechanical sealing depth is not so large, that of the toilet bowl adopted in this embodiment is 78 mm as described above, and the minimum water level required for the standby water level by law. If a water level with a sealed depth of 50 mm, which is the water level, is adopted as the measurement start water level, there is not much room for the specification value 800 mL or more of the maximum measurable urine volume value.

Furthermore, when a negative pressure is applied to the trap when pressure fluctuation occurs, the maximum urine volume value that can be measured is further reduced because the water level in the trap 5 approaches the overflow water level.
Therefore, in order to apply this embodiment, the condition is that the pressure fluctuation generated in the sewage pipe is small, in other words, the water level difference generated between the ball 2 and the trap 5 is small. When this method is adopted at a site where the pressure fluctuation is large, the stored water level shifts due to the pressure fluctuation and overflow of the stored water occurs during the measurement, and a predetermined urine volume measurement range cannot be secured.

  However, in this form, the preparatory action for creating the measurement start water level is not required before the start of measurement, and even if the subject urinates immediately, the urine mixed water does not overflow, and the It is possible to calculate urination information including urine volume by measuring changes. Therefore, since the test subject can perform the measurement operation without waiting time, it is easy to use.

  As shown in FIG. 4 (b), as shown in FIG. 4 (b), the minimum sealed water depth (50 mm or more) is required during standby, as a higher water level (second predetermined water level, overflow water level in this embodiment) than in the case of FIG. 4 (a). In the case of creating a measurement start water level by reducing the stored water level only at the time of measurement, the measurement start water level can be freely selected without being regulated by laws and regulations. Therefore, if the lower water level (third predetermined water level) is selected as the measurement start water level as compared with the above-described form of FIG. 4 (a), the amount of urine compared with the form of FIG. 4 (a). Since the measurement range itself is expanded, a sufficient urine volume measurement range can be secured even when pressure fluctuations occur.

  It should be noted that the measurement start water level in this form is set at the start of use of the present apparatus. Therefore, it is considered that the stored water 4 evaporates due to the elapse of time as assumed by the legal seal depth (50 mm). Do n’t worry. In addition, even if the accumulated water is gathered to the ball side or the trap side by the positive or negative pressure of ± 40 mmAqa, which is the maximum value of the pressure fluctuation that can actually occur in the sewage piping facility, It is recommended that the water level be set at a sealing depth of 25 mm, which is considered to prevent backflow of odor in the pipe. .

  Further, in this embodiment, since the standby water level is not the measurement start water level, a measurement preparation operation for changing the water level from the standby water level to the measurement start water level is necessary to measure the urine volume. Therefore, the subject waits for the water level of the stored water 4 to reach the measurement start water level when measuring, and cannot urinate immediately.

  As described above, since this mode requires a preparatory operation before the start of measurement, there is a usability limitation in which the subject temporarily waits for urination, but the ball 2 and the trap 5 are caused by pressure fluctuations in the sewage pipe after the start of measurement. Even when the water level difference generated during the period increases to some extent, measurement can be performed without overflowing the stored water 4, and the urine volume measurement range can be expanded.

  In this embodiment, in this set water level mode, the standby water level is the overflow water level, and the standby water level is created by a normal toilet cleaning operation performed after use. However, as a modification of this embodiment, the standby water level is overflowing. It is also possible to adopt an arbitrary water level that is not a flowing water level but a mechanical sealing depth of 78 mm or less of the toilet used in this embodiment at a sealing depth of 50 mm or more that complies with the minimum sealing depth (50 mm or more) of the law.

  As described above, in this embodiment, the present apparatus itself automatically selects one of the two types of set water level from the above-described two types of set water level according to the measurement result of the sewage pressure fluctuation amount at the installation site. Here, since the generation level of the pressure fluctuation is caused by the facility design of the building, the pressure level generated in each building is different. In addition, the pressure fluctuation value becomes large by the simultaneous use of the appliance, and this case often becomes the maximum pressure fluctuation at the installation site, but since the frequency of simultaneous use is not high, the maximum pressure works for a short period of time. it is conceivable that. Therefore, in this embodiment, in order to grasp the tendency of pressure fluctuation at the installation site, one day considered as a unit of lifestyle rhythm is adopted as the predetermined period of pressure fluctuation in the sewage drain, and the maximum value of fluctuation during that period is adopted. Is actually measured, and the mode shown in FIG. 4A or 4B is selected based on the result.

  As described above, the apparatus itself automatically selects the set water level mode shown in FIG. 4A or 4B at the pressure fluctuation level. In this embodiment, the apparatus is used when the maximum urine volume measurement range is desired to be increased. It is also possible to select the set water level mode shown in FIG. 4B by using a water level setting method selection switch (not shown) provided later so that the administrator can select the set water level selection method. For this purpose, instead of measuring the amount of urination every time the subject measures, the measurement of the large amount of urine in which multiple urinations are accumulated, such as when the nurse measures the total volume of the urine collection bag guided by the catheter is assumed.

  Conversely, the pressure fluctuation value changes due to variations in usage on the equipment user side, such as the simultaneous use of equipment. Therefore, even if the occurrence of a pressure fluctuation that causes an overflow from the trap is detected and the apparatus selects the set water level mode of FIG. 4B, the facility manager determines the risk, and FIG. A set water level mode selection unit that switches to the set water level mode of a) and prioritizes the convenience of the subject may be employed.

  In this case, if this device detects excessive pressure fluctuations during measurement, it should be added to the measurement results that a measurement error may have occurred, and medical personnel who use urination information will make measurements. It is possible to prevent an error in the treatment by examining the treatment after grasping the reliability of the value. On the other hand, even if priority is given to the prevention of sewage odor diffusion and sanitary pest invasion, and the instrument selects the set water level mode shown in FIG. 4 (a), the facility manager enters the set water level mode shown in FIG. 4 (b). It is possible to prioritize prevention of sanitary problems by switching.

  FIG. 5 is a diagram showing a detailed configuration and each water level of the measuring unit 114d of the urination information measuring toilet of the present invention. With this figure, when the amount of fluctuation in the sewage pipe pressure is smaller than a predetermined value, that is, FIG. The operation of the set water level mode 1 shown in FIG.

The Western-style toilet 102 communicates with a ball 106 that receives the urine, feces, and the like of a subject, a rim water discharge nozzle 107 that discharges cleaning water from the rim portion of the ball 106, and the bottom of the ball 106, and seals the ball 106. A trap 108. The Western-style toilet 102 has a jet water discharge nozzle 109 that is disposed at the bottom of the ball 106 and that jets cleaning water toward the trap 108. Further, a rim surface 106 a that abuts on a toilet seat (not shown) is formed above the ball 106.
As shown in FIG. 5, during standby, the water level in the ball 106 of the urination information measuring toilet 101 is the measurement start water level indicated by Y. The measurement start water level Y is a water level in consideration of prevention of breakage due to pressure fluctuations in the sewage pipe, and is a position where the seal depth is 50 mm or more with respect to the breakwater level X2. The difference in the amount of accumulated water between the overflow water level H, which is the position of the top 108a of the trap, and the measurement start water level Y is the urine volume measurement range.

  When the subject is about to start measurement, “waiting” is displayed on the operation / display unit 122. When the subject operates a preparation switch (not shown) or an individual authentication means (not shown) such as an ID card or a tag before sitting, the water stored in the auxiliary tank 119k is supplied to the pump 119l and the on-off valve 119m. And through the on-off valve 119n, one end is led to a calibration tube 119f that is open to the atmosphere. The guided water rises to the branch portion 119q of the calibration pipe 119f, and then is discharged to the drain socket 10 through the trap pipe 118b.

  By this operation, the calibration tube 119f is filled with water up to the height of the branch portion 119q. Therefore, since the height of the branch portion 119q is always constant and known, the pressure sensor 118 that measures the water level of the stored water connected to one end of the calibration tube 119f measures the water level inside the calibration tube 119f at this time. Perform home calibration. Further, by performing calibration in comparison with the constant water pressure level of the calibration tube 119f, the pressure sensor 118 can measure the water level as an absolute position.

  Since the pressure sensor 118 can measure the absolute value by the calibration operation described above, the water supply amount for setting the measurement start water level varies, or the water set at the measurement start water level evaporates. Even if the water level is reduced, the difference in the amount of accumulated water before and after urination can be converted into urine information including urine volume using the calibration curve.

  The pressure sensor 118 used in the present embodiment is assumed to be a semiconductor pressure sensor that measures the stored water level as a pressure fluctuation value, but the built-in semiconductor diaphragm has a drift phenomenon in which the output changes depending on energization and environmental temperature. In order to prevent these effects, calibration is performed as a preparatory operation immediately before the start of measurement every time measurement is performed.

  Next, the control means 120 closes the on-off valve 119m and the on-off valve 119n that have passed water through the calibration tube 119f, opens the on-off valve 119b to measure the accumulated water level, and finishes the preparatory operation so that measurement is possible. Thus, the display on the operation / display unit 122 becomes “measuring”.

  After confirming that the display has changed to “measuring”, the subject urinates to the ball 106. When the subject urinates, the water level in the ball 106 rises to a water level Z as shown in FIG. After the urination is finished, when the subject operates the urination end switch (not shown) of the operation / display unit 122 or when the end of urination is detected by the fact that the water level does not change continuously for a certain period of time, The control means 120 measures the pressure at the post-urination water level Z by the pressure sensor 118. Then, the measured pressure value is converted into a stored water level by a calibration curve determined in advance, and further converted into a stored water amount by a calibration curve which is a relationship between the water level and the stored water amount determined in advance. ing.

  Here, since the water 4 and the water in the calibration pipe 119f are connected via a pressure guiding line, the water level in the calibration pipe 119f rises and falls according to the change in the water level of the water 4. If the pressure line / calibration tube diameter is small, the change in the water level inside the calibration tube 119f becomes sensitive to the change in the stored water level, and the output of the pressure sensor 118 tends to pulsate. On the other hand, if the pressure guiding conduit / calibration tube diameter is large, the change in the water level inside the calibration tube 119f with respect to the change in the stored water level becomes insensitive, and the output of the pressure sensor 118 is less likely to pulsate. That is, it was found that the sensitivity of the measurement system to pressure fluctuation (pulsation) changes depending on the combination of the diameter of the calibration pipe 119f with respect to the pressure conduit 118a.

  In this embodiment, not only the amount of urination but also an urinary flow rate which is an index for judging the urination ability and is obtained as a temporal change rate of the water level of the accumulated water 4 is also measured. ) Has a significant impact. Therefore, the pipe diameter of the pressure guiding pipe or the calibration pipe is adjusted to an optimum value depending on the required measurement accuracy.

  In addition, when a throttle orifice that restricts the pipe diameter is added in the middle of the pressure conduit 118a, although the delay in the detection behavior of the pressure sensor 118 with respect to the change in the stored water level increases, the pulsation accompanying the change in the stored water level becomes difficult to be transmitted to the pressure sensor 118. It was also found that the influence of pulsation is reduced.

  Since the water level of the stored water 4 measured by the pressure sensor 118 is shifted by the water level being affected by the pressure fluctuation in the sewage drain, the water level value measured by the pressure sensor 118 also pulsates with respect to the sewage pressure fluctuation. The vibration of 1 to 3 Hz, which is the minute, is removed by a control filter, the time to be converted is shifted by the delay time (phase shift) of the measurement system, and the water level is corrected to the water level when there is no pressure fluctuation. .

  The difference in the amount of accumulated water before and after urination is the urine volume, and urination information such as urine volume and urine flow rate calculated by the urine information calculation means 18 incorporated in the control means 15 is displayed on the operation / display unit 122. As an output form, it may be printed out on paper from the printer 136, or output as electronic information to an electronic storage medium or a facility LAN. In addition, when using the urination information measuring toilet 101 of the present technology in a hospital, it is determined that the urine volume measurement value measured as a medical practice exerts mental pressure on the patient as a subject and adversely affects the patient's medical condition. It is also conceivable to omit the measurement result display function when the measurement is performed. Regarding the output form, the output specifications should be reviewed as appropriate, taking into consideration the needs of medical personnel who utilize the data, not the patient as the subject.

  When the measurement is completed, the display on the operation / display unit 122 changes to “in preparation for measurement”. When the test subject operates or sits away for a predetermined time or longer, the toilet cleaning operation is started. The control means 120 discharges water for a predetermined time from the rim water discharge nozzle 107, and as shown in FIG. 5, the water level in the ball 106 rises to the vicinity of the full water level W of the trap 108, and dirt is collected in the center by the swirling flow. Next, the control means 120 stops water discharge from the rim water discharge nozzle 107 and discharges water from the jet water discharge nozzle 109. Due to water discharge from the jet water discharge nozzle 109, a siphon phenomenon occurs in the trap portion 108, the washing water and urine in the ball 106 are sucked into the trap 108, and the water level in the ball 106 is lowered. After the siphon phenomenon, the control means 120 again discharges water from the rim water discharge nozzle 107 for a predetermined time, raises the water level in the ball 106 to the measurement start water level Y, and returns to the standby state. Thereafter, the display on the operation / display unit 122 changes to “standby”.

  If the measurement start water level Y is lower than the target predetermined water level, the water in the auxiliary tank 119k is additionally supplied by the pump 119l via the pressure conduit 118a and the jet water discharge nozzle 109 to be corrected to the predetermined water level. Also good. In this case, since the water supplied from the auxiliary tank 119k is sent from the pressure conduit 118a toward the ball 106, the internal cleaning of the pressure conduit 118a can be performed, and long-term operational reliability is taken into consideration. become.

  The water level forming means 6 shown in the block diagram of FIG. 2 is the flow path switching means 116 for supplying water, the auxiliary tank 119k, and the pressure sensor 118 for checking the set water level. By supplying water from the rim water discharge nozzle 107 and the jet water discharge nozzle 109, a predetermined water level designated by the stored water level selection means 17 is created. The pressure fluctuation amount generated in the sewage drain pipe is measured by the pressure sensor 121.

  Based on the measured sewage pressure fluctuation amount, as described above, when the pressure fluctuation amount generated in the sewage drain pipe is smaller than a predetermined value, the state shown in FIG. 4A is selected. The state shown in FIG. 4B is selected. Since the purpose is to grasp the amount of influence of the water level of the stored water 4 due to the pressure fluctuation generated in the sewage discharge pipe, the pressure sensor is a type of measuring means for measuring the pressure difference with respect to the atmospheric pressure as in this embodiment. In addition, the water level of the ball part and / or the trap may be directly measured by a water level measuring means using a non-contact type ultrasonic sensor or a contact type detection electrode arrangement method.

  In order to obtain the amount of accumulated water at that time from the measured ball part water level, it is necessary to obtain in advance a calibration curve that is the relationship between the amount of accumulated water at any ball part water level, but the Western-style toilet 102 is made of earthenware. Since individual differences are large in terms of shape, in this embodiment, a function for obtaining a calibration curve is provided to eliminate the inter-individual differences in the toilet bowl portion so that more accurate measurement can be performed.

  That is, the water level in the ball 106 is measured every predetermined time while the pump 119h sucks the water through the pressure conduit 118a and the on-off valve 119d and discharges it to the sewage pipe 9 via the drainage conduit 118b via the trap 119i. As a result, the calibration curve is set.

  Prior to the calibration curve setting operation, a washing operation for discharging foreign matter in the stored water is performed to prevent the foreign matter in the stored water from being sucked. The calibration curve setting operation is performed at night when the possibility of using the urination information measuring toilet 101 is small. By making such a calibration, there is no labor for setting the calibration curve, and the labor of the construction worker and the performance / function maintenance manager is not bothered. As a calibration curve setting method, not only the method of draining the accumulated water 4 of the ball 106 but also a calibration curve of the water level and the accumulated water amount is obtained while supplying a predetermined amount of water into the ball 106 in a plurality of times. May be.

FIG. 6 shows the detailed configuration of the measuring unit 114d and each water level when the sewage pipe pressure fluctuation amount of the urination information measuring toilet of the present invention is larger than a predetermined value, that is, in the set water level mode 2 shown in FIG. It is the figure shown, and the detailed structure of the measurement part 114d is the same as the case of the setting water level mode 1. FIG.
Hereinafter, the operation will be described in detail, but the description of the same part as in the above-described set water level mode 1 will be omitted, and only the different part will be described.

  In this embodiment, when the subject enters the toilet for measurement, the water level in the ball 106 of the urine information measuring toilet 101 is the overflow water level indicated by H. The measurement start water level Y is a water level set by a preparatory operation before the user starts urination for measurement, and takes into account the pressure fluctuation in the sewage drain pipe ± 40 mmAqa, and the sealed water level 20 with respect to the break water level X2. The position is ˜25 mm. The difference in the amount of accumulated water between the overflow water level H, which is the position of the top 108a of the trap, and the measurement start water level Y is the urine volume measurement range.

  Further, “standby” is displayed on the operation / display unit 122. When the subject operates a preparation switch (not shown) before urination, or operates a personal authentication means (not shown) such as an ID card or a tag, a normal toilet operation is started, and the internal water 4 is generated due to the occurrence of a siphon phenomenon. Is discharged to the sewage pipe via the trap 108, and the water level of the ball 106 is lowered.

  After the siphon phenomenon is finished, the control unit 120 again discharges water from the rim water discharge nozzle 107 for a predetermined time, raises the water level in the ball 106 to the measurement start water level Y, and the setting is completed at the stored water level where urination information can be measured. . When the measurement start water level Y is less than a predetermined amount, the water in the auxiliary tank 119k is supplied via the pressure conduit 118a and the jet water discharge nozzle 109.

When the measurement start water level is set, the display on the operation / display unit 122 becomes “measurable”. Thereafter, as in the case of the set water level mode 1, a change in the stored water level is measured, and a conversion calculation is performed on the urine volume. After the measurement is completed, normal toilet flushing is performed by detecting the operation and interest of the subject, and enters a standby state.
That is, in this set water level mode, the standby water level is set by the rim water supply after draining the normal toilet flushing water, so the standby water level is set to the overflow water level.

  FIG. 7 is a flow chart showing a set water level mode setting that is a combination of set values of each water level at the start of measurement and at the time of measurement standby in the embodiment of the urination information measuring toilet of the present invention, and the apparatus operation in accordance therewith. Explain in detail. In this embodiment, a water level setting method selection switch (not shown) is provided in order to be able to manually specify the method for selecting the set water level.

  When this equipment is installed at the construction site and the installation work such as the output calibration work of the water level measurement means necessary for water level measurement and the creation of the correction curve to obtain the relationship between the water level and the amount of water is completed, In S10, the facility manager or installer sets the set water level selection method using the water level setting method selection switch provided in the apparatus. The selection of the water level selection method is broadly divided into two types: “automatic”, which is left to the automatic setting function of this device, and “manual” which can manually select and specify the water level selection information related to the selection of the set water level. The contents are stored in step S11.

  In S12, the set input value is determined. If “automatic”, the measurement of the pressure fluctuation state in the sewage drain pipe is started in step S13, and the measurement values for the day are accumulated. The accumulated pressure fluctuation state is determined in step S14, and the set water level mode is determined. In this embodiment, one of the two set water level modes described above is selected according to the maximum value among the accumulated pressure fluctuations. That is, when the maximum value of the pressure fluctuation is less than or equal to the predetermined value, in step S15, the set water level mode 1 is selected, in which the standby water level is the same as the measurement start water level (first predetermined water level) and measurement is started as it is, and the standby is performed in step S16. The water level is set to the first predetermined water level. If the predetermined value is exceeded, the second predetermined water level is selected as the standby water level in step S17, and the mode standby water level is set to the overflow water level in step S17.

  The reason why the data storage period is set to one day is that the cycle relating to how the building is used often repeats one day as the same cycle. Therefore, the predetermined period of the data accumulation period may be changed separately depending on how the building is used.

If the set input value is determined in S12 and the water level selection method is “manual”, the set water level of the standby water level corresponding to the content of the water level setting information selected by the water level setting method selection switch in step S21 is stored water. The water level is selected by the water level selection means, and the water level is set to the standby water level selected in step S22.
In addition, when the water level setting method selection switch is “manual”, the method for specifying the water level selection information includes a method of selecting one of a plurality of predetermined set water levels, a standby water level or a set water level itself. Various selection methods usually used in the setting work, such as a method of designating a numerical value, can be adopted.

  Regardless of which water level selection method is selected, the measurement preparation operation at the time of installation of the present apparatus is completed, and the apparatus can be used for measurement. Up to this point, the explanation has been made assuming that the set water level mode is set at the time of installation, but in this example, after actually installing urine information for a certain period after installation, the pressure fluctuation state and measurement in the sewage drain pipe It is also possible to change the set water level mode setting again by selecting the “manual” mode of the water level setting method selection switch according to the distribution state of the urination amount of the subject.

  As described above, when “automatic” is selected for the water level setting method selection switch of the present embodiment, the water level selection information used for selecting the set water level for the standby water level and the measurement start water level is the sewage pressure fluctuation influence measuring means. Is an observation value of sewage pressure fluctuation obtained by measuring the sewage pressure, and this device automatically obtains it and judges one of two set water level modes with different set water levels depending on its magnitude. To decide. When “manual” is selected, the apparatus acquires water level selection information input manually, and selects a set water level based on the information.

That is, this embodiment also has two types of water level selection information acquisition modes (modes), “automatic” and “manual”. As a modification of the present embodiment, only the “manual” mode is obtained, that is, the configuration of the stored water level selection means , and a water level selection information input unit for manually inputting all the water level selection information necessary for water level selection is provided. As a configuration for acquiring information by the apparatus, it is possible to adopt a configuration in which the sewage pressure fluctuation influence measuring means, which is one of means for automatically acquiring the water level selection information, is not provided.

Next, details of the actual measurement operation of urination information will be described below with reference to the flowchart of FIG. 8 showing the measurement operation of the embodiment of the urination information measurement toilet of the present invention.
When the subject inputs measurement start in S101, the display of the apparatus is switched from “standby” to “in preparation for measurement”, and the apparatus enters the measurement mode and starts the measurement preparation operation. The measurement start input method is a switch operation of the operation / display unit, insertion of an ID card into the device, or holding an ID tag, and various methods can be adopted. It is not limited. In medical institutions, the trend over time of measurement results often becomes a problem, so a method that can simultaneously acquire personal information and time information is often desired.

  Next, preparation for measurement is performed. In S102, the stored set water level mode is determined. If the set water level mode is 1, the standby water level is set to the measurement start water level (the first predetermined water level), and the stored water level is immediately measured. The outputs of the pressure sensor 118 and the pressure sensor 121 that measures the amount of fluctuation in the sewage pressure are calibrated. Here, after the output of the pressure sensor 121 is calibrated with reference to the atmospheric pressure, the display of this apparatus is switched from “Preparing for measurement” to “Measurable”, and the measurement preparation operation is completed.

  When the stored set water level mode is mode 2, the water level changing operation for changing from the overflow water level (second predetermined water level) waiting for the stored water level to the measurement start water level (third predetermined water level) in S104. In step S105, the pressure sensor is calibrated, and the display of the apparatus is switched from “Preparing for measurement” to “Measurable” to complete the measurement preparation operation.

After confirming that the display has changed from “Preparing for measurement” to “Measurable”, the subject operates the measurement start switch in S106 to start the urination operation.
When the measurement start switch is operated, a measurement time timer is started in S107, and the pressure sensors 118 and 121 are used. Respectively measured water levels and sewage pressures are continuously recorded.
In order to omit the measurement start switch operation, the measurement may be automatically started by detecting that the subject has been seated on the toilet seat after the measurement preparation operation.

  When the measurement end operation is performed in S107, the display is switched from “measurable” to “in preparation for measurement”, and the processing operation of the recorded measurement data of the stored water level and the sewage pressure is started. Note that the end of urination is not only the switch operation input of the subject, but also the measurement end processing is performed with the detection that there is no change in the water level of the stored water for a predetermined time after the change in the stored water level is observed as the end of urination. Also good.

  S109 is a step of removing the unsteady component from the time-dependent fluctuation data of the measured sewage pressure fluctuation. The pulsation component of 1 to 3 Hz (hereinafter referred to as “unsteady component”) included in the obtained measurement data is removed, and only the actual fluctuation component (hereinafter referred to as “steady component”) is extracted. For this purpose, various digital processes such as a moving average and an adaptive filter are performed, and a process for removing this unsteady component is performed.

  Next, in S109, taking into account the steady component included in the obtained sewage pressure fluctuation and the delay time (phase shift) of the accumulated water level measurement system, the measured accumulated water level at a predetermined time is in a state without pressure fluctuation. Convert to. Since the measurement system of the stored water level is measured via the pressure conduit 118a, a delay (the phase of the output waveform is shifted) occurs with respect to the pressure fluctuation in the sewage pipe. Therefore, if the delay is 0.2 seconds, the stored water level is converted to a state without pressure fluctuation using the pressure fluctuation value in the sewage pipe at the time 0.2 seconds before.

  If the measurement system of the stored water level follows the pressure fluctuation in the sewage pipe containing the unsteady component, the process of S110 is deleted, and the stored water level is in a state without pressure fluctuation at each time. However, since the measurement system of the present embodiment has a response delay due to its configuration as described above, it has finished recording the measurement data of the stored water level and the measurement data of the sewage pressure fluctuation over time. After that, the time-lapse data of the stored water level is converted to the state without pressure fluctuation. S111 is a step of selecting urination information such as urine volume and urine flow rate. The stored water level information at each time obtained in S110 is converted into the stored water amount by a calibration curve indicating the relationship between the stored water level and the stored water amount obtained in advance. Therefore, the difference in the amount of accumulated water before and after urination becomes the urine amount, and when the time variation data of the accumulated water amount is differentiated with respect to time, a urine amount variation rate that is a temporal change rate of the urine amount is obtained. The difference in the amount of accumulated water every second is an index called urine flow rate used in the medical field.

  S111 is a step of outputting the measurement result. Possible outputs include screen display of measurement results, printing on paper, storage on an electronic medium, and transmission of information to a communication line. In addition, if there is a concern about the reliability of the measurement results that may have occurred due to excessive pressure fluctuations in the sewage drain during measurement or overflow of the stored water, there may be a measurement error. Is added to the output of the measurement result to prevent medical personnel from mistaking medical judgment.

The measurement of urination information and data processing are completed as described above, and the display of the present apparatus is switched from “measurable” to “preparing for measurement” to end the measurement mode.
Next, when the subject performs a toilet cleaning operation in S113, the set water level mode stored in S114 is determined, and a toilet cleaning operation corresponding to a normal toilet cleaning operation described below is performed. When the user is seated without performing the toilet cleaning operation, the toilet cleaning operation may be automatically performed after a predetermined time has elapsed. For convenience of explanation in this flowchart, this toilet flushing operation is performed after the completion of the calculation result output process in S112. However, as indicated by a broken line, the operation is continued after the measurement end operation in S108. Alternatively, the measurement end operation may be combined with the toilet cleaning operation, and the toilet cleaning may be performed immediately after the measurement end operation.

  When it is determined that the set water level mode is mode 1 in S114, jet discharge is performed in S115, and excreta is sent to the sewer pipe together with the accumulated water by the siphon phenomenon. Thereafter, a predetermined amount of accumulated water that matches the setting of the set water level mode stored in S116 is supplied to the ball by the rim water discharge and water replenishing means, and is set to a predetermined standby water level (first predetermined water level). If it is determined that the mode is 2, the excrement is sent to the sewage pipe together with the stored water in S117, and the water level of the stored water is set to the overflow water level (second predetermined water level) by rim water discharge in S118. The

  Next, the case where the set water level is designated by the apparatus manager or the maintenance person will be described below. In the case of designating the water level setting operation, the option includes the setting water level mode 1 or the setting water level mode 2 as described above, and a mode for performing a predetermined special standby operation. However, in order to simplify the explanation here, as a representative example, the standby water level is specified as a water level different from the set water level mode 1 or the set water level mode 2, and measurement is started at that water level. For the designated case, the difference from the set water level mode 1 and the set water level mode 2 will be mainly described.

In this case, in the measurement preparation operation, first, the water level of the measurement start water level designated in S201 is set. Next, the output calibration of the stored water pressure sensor is performed in the same manner as in the set water level mode 1 described above in S202.
When the toilet cleaning operation is performed after the measurement is completed, the excrement is sent to the sewage pipe together with the stored water in S203, and then the water level of the stored water is set to the designated standby water level by rim water discharge in S204.

  With the above operation, the series of operation sequences is completed in a state where the water level of the stored water is set to the water level corresponding to the set water level mode, and a standby state for waiting for the next subject is entered.

  FIG. 9 is a timing chart showing the operation of each component when the set water level mode is the set water level mode 1 in the urination information measuring toilet of the present invention. The operation of the urination information measuring toilet in the set water level mode 1 will be described according to the flow of the time chart.

  When the subject approaches the vicinity of the urination information measuring toilet, the operation / display unit displays a waiting state. When the subject performs the start-up operation of this device, such as pressing down the operation switch or inserting the ID card, the display changes during measurement preparation, activates the pressure sensor 121 that measures the pressure fluctuation in the sewage pipe, and performs the calibration operation together. The on-off valve 119m, the pump 119l, and the on-off valve 119n are activated, and the absolute value of the pressure sensor 118 is calibrated by passing water through the calibration pipe. When the calibration operation is completed, the display switches to “measurable”. At the same time, the on-off valve 119 is opened to measure the accumulated water level, and the pressure sensor 118 for measuring the accumulated water level and the ball communicate with each other through the pressure conduit 118a. The water level at that time is the measurement start water level Y that allows the urine volume to be measured until the trap overflows.

  Subject undresses and sits and starts urinating. The accumulated water rises with the urination. After completion of urination, the stored water level is converted into a state where there is no sewage pressure fluctuation by the above-described measurement data processing algorithm, and various urination information such as urine volume and urine flow rate are displayed on the urine information remote controller 134 as measurement results. Will be.

  Next, when the subject performs toilet flushing, first the water supplied from the water level forming means 6 is supplied to the rim side, and the water level of the ball is raised to the full water level W of the trap 108. Next, a siphon phenomenon is generated by jet water discharge, and excreta and stored water are discharged into a sewer pipe. Thereafter, rim water supply is performed again, and the water level of the ball is returned to the measurement start water level. The amount of accumulated water that is insufficient with respect to the measurement start water level Y after confirming the accumulated water level is supplied to the ball from the replenishing tank by activating the on-off valve 119m and the pump 119l. Since accurate reproduction of the measurement start water level is realized, both prevention of blockage against fluctuations in the sewage pressure and prevention of change in the measurement range due to change in the measurement start water level can be achieved. When it returns to the measurement start water level and the next subject is ready for measurement again, the display is switched to standby.

FIG. 10 is a timing chart showing the operation of each component when the set water level mode is the set water level mode 2 in the urination information measurement toilet of the present invention.
The operation of the urination information measuring toilet in the set water level mode 2 will be described according to the flow of the time chart.

  When the subject approaches the vicinity of the urination information measuring toilet, the operation / display unit displays a waiting state. When the subject performs the start-up operation of the apparatus, such as pressing down an operation switch or inserting an ID card, the display changes during measurement preparation, and the operation of changing the water level from the overflow water level H to the measurement start water level Y is performed. . First, the water supply from the water level forming means 6 is supplied to the rim side, and the water level of the ball is raised to the full water level W of the trap 108. Next, a siphon phenomenon is generated by jet water discharge, and excreta and stored water are discharged into a sewer pipe. Thereafter, rim water supply is performed again, and the water level of the ball is returned to the measurement start water level. At this time, if the stored water level is confirmed and the measurement start water level Y is insufficient, the on-off valve 119m and the pump 119l are activated, and the stored water is supplied from the replenishing tank toward the ball. If constituted in this way, since accurate reproduction of the measurement start water level is realized, it is possible to achieve both the prevention of sealing against fluctuations in the sewage pressure and the prevention of change in the measurement range due to a change in the measurement start water level.

  In addition, during the measurement start water level setting, the pressure sensor 121 for measuring the pressure fluctuation in the sewage pipe is activated, and the on-off valve 119m, the pump 119l, and the on-off valve 119n are activated to perform the calibration operation, and water is passed through the calibration pipe. The absolute value of the pressure sensor 118 is calibrated. When the calibration operation is completed, the display switches to “measurable”. At the same time, the on-off valve 119 is opened to measure the accumulated water level, and the pressure sensor 118 for measuring the accumulated water level and the ball communicate with each other through the pressure conduit 118a. The water level at that time is the measurement start water level Y that allows the urine volume to be measured until the trap overflows.

  Subject undresses and sits and starts urinating. The accumulated water rises with the urination. After completion of urination, the stored water level is converted to a state where there is no sewage pressure fluctuation by the above-described measurement data processing algorithm, and various urination information is displayed on the urine information remote controller 134 as measurement results.

  Next, when the subject performs toilet flushing, first the water supplied from the water level forming means 6 is supplied to the rim side, and the water level of the ball is raised to the full water level W of the trap 108. Next, a siphon phenomenon is generated by jet water discharge, and excreta and stored water are discharged into a sewer pipe. Thereafter, rim water supply is performed again, and the water level of the ball is returned to the overflow water level H. The display will switch to the standby state after returning to the overflow water level.

In the embodiment described above, when the device selects the set water level for the standby water level and the measurement start water level, the pressure fluctuation amount or the water level specification value of the sewage pipe connected to the urination information measurement toilet is set as the specification information of the water level selection information. I ’ve been talking about selecting the water level,
As another embodiment of the present invention, a mode in which the maximum measurable amount is handled as priority information of the water level selection information for the set water level and the set water level is selected, that is, the measurable range is prioritized in the water level selection process.

  In that case, the specified measurable range is prevented by preventing the occurrence of measurement errors due to overflow of accumulated water during measurement due to fluctuations in sewage pressure as described above and the occurrence of malfunctions such as backflow of odor due to toilet bowl breakage. In order to make it possible to select a substantially meaningful range, it is preferable to have an influence amount suppressing means for suppressing the influence amount of the stored water level due to the pressure fluctuation of the sewage pipe. As the configuration of the influence amount suppressing means, for example, an on-off valve that completely shuts off the pipe system of the sewage pipe or a pressure valve that cuts a pressure fluctuation exceeding a predetermined value may be provided in the trap.

  Regardless of whether it is during measurement or during standby, the measurement start water level and standby water level to ensure the maximum measurable amount to be acquired as the water level selection information, and the water level such as the water level during measurement are If it is determined that there is a possibility of causing the above-mentioned problem with respect to the assumed maximum pressure fluctuation of the sewage pipe, the influence amount suppressing means is operated so that the pressure fluctuation of the sewage pipe does not exceed a predetermined value. To.

As described above, the urination information measuring toilet to which the present invention is applied has means for acquiring various water level selection information and selecting the set water level based on the information, so the set water level of the accumulated water to be formed depends on the installation environment. It becomes possible to change to an appropriate water level that does not cause problems.

It is a perspective view which shows the whole Example of the urination information measurement toilet to which this invention is applied. It is a block diagram which shows the structure of the measurement system of the Example of the urination information measurement toilet of this invention. It is a schematic diagram which shows the stored water behavior by the pressure fluctuation in a sewage piping. It is a schematic diagram which shows each stored water level at the time of standby and measurement of two modes according to the amount of pressure fluctuations in sewage piping when the set water level mode is set to automatic. It is a detailed structure of the measurement system of the Example of the urination information measurement toilet of this invention, and each water level of the set water level mode 1 when the set water level mode is set to automatic. It is a figure which shows the detailed structure of the measurement system of the Example of the urination information measurement toilet of this invention, and each water level of the set water level mode 2 when the set water level mode is set to automatic. It is a flowchart which shows the processing operation regarding the setting water level mode setting of the Example of the urination information measurement toilet of this invention. FIG. 8 is a flowchart showing the measurement operation of the embodiment of the urination information measuring toilet of the present invention. It is a timing chart which shows operation | movement of each element in the setting water level mode 1 when the setting water level mode of the Example of the urination information measurement toilet of this invention is set to automatic. It is a timing chart which shows operation | movement of each element in the setting water level mode 2 when the setting water level mode of the 2nd Example of the urination information measurement toilet of this invention is set to automatic.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Toilet bowl 2 ... Ball 3 ... Rim 4 ... Reservoir 5 ... Trap 6 ... Water level formation means 7 ...・ Rim water discharge nozzle 8... Jet water discharge nozzle 9... Sewage pipe 10... Drainage socket 14..., Stored water level measuring means 14 a. Means 15 ··· Control unit 16 ··· Sewer pressure fluctuation influence measuring means 17 ··· Reserved water level selection means 18 ··· Urinary information calculation means 22 ··· Operation / display unit 71 · · ... Rim water discharge means 81 ··· Zet water discharge means 82 ··· Branching portion 83 ··· Pressure guiding channel 91 ··· Water replenishment means 101 · · · Urinating information measuring toilet 102 · · Western style Toilet bowl 104 ... Cabinet 106 ... Ball 106a ... Rim surface 107 ... Rim water spouting Nozzle 108 ... Trap 108a ··· Top 109 ··· Jet water discharge nozzle 110 · Toilet seat 112 · Toilet lid 114 · Urine collection device 114a · · Urine collection device 114b · · Urine collection arm 114c · · Urine collection unit 114d ··· Urine component measuring unit 116 ··· Water level switching means 118 ··· Pressure sensor 118a · · Pressure conduit 118b · · Trap line 119b · · On-off valve 119d · · On-off valve 119f · · Calibration tube 119h · · Pump 119i・ ・ Trap 119k ・ ・ Auxiliary tank 119l ・ ・ Pump 119m ・ ・ Open / close valve 119n ・ ・ Open / close valve 119q ・ ・ Branch part 120 ・ ・ ・ Control means 121 ・ ・ ・ Pressure sensor 122 ・ ・ ・ Operation ・ Display part 132 ・ ・・ Sanitary washing device remote control 134 ... Urination information measuring unit remote control 136 ... Printer H: Overflow water level W: Full water level X: Air level X2: Sealed water level Y: Measurement start water level Z: After urination Water level

Claims (6)

A ball that receives the user's urine;
A trap that allows the ball and the sewage pipe to communicate with each other and that forms a pool of water that seals the sewage pipe;
Measurement of the water level of the stored water when the user starts urination for measurement, and the standby water level that is the level of the stored water that is formed after using the toilet and waits until the next use of the toilet Water level forming means for forming a starting water level at a predetermined set water level;
Water level measuring means for measuring the level of the stored water in the ball,
In the urination information measurement toilet for obtaining urination information including at least the urine volume with respect to the urine excreted in the ball by the user based on the measurement value of the water level measurement means,
A sewage pressure fluctuation influence measuring means for measuring a sewage pressure fluctuation influence quantity as an influence quantity of the pressure fluctuation in the sewage pipe on the water level of the stored water ;
A stored water level selection means for selecting the set water level based on a measurement result of the sewage pressure fluctuation influence amount measurement means ,
The water level forming means forms the water level of the stored water at the selected set water level,
A toilet for measuring urine information, wherein a set water level of the standby water level and the measurement start water level can be set to a predetermined water level according to pressure fluctuation in a sewage pipe . The stored water level selection means has a predetermined value of the sewage pressure fluctuation amount as a threshold for selecting the set water level,
Observations of the measured predetermined period of the lower pressure-change impacts amount measuring means,
When below the threshold ,
The stored water level selection means selects a first predetermined water level that is predetermined as the standby water level and the measurement start water level, and the water level forming means forms the first predetermined water level that is selected after the use of the toilet. Wait until use,
When the observed value exceeds the threshold value,
The stored water level selection means has a predetermined second predetermined water level that is higher than the first predetermined water level as the standby water level and lower than or equal to the overflow water level of the toilet , and from the first predetermined water level as the measurement start water level. While selecting a predetermined third predetermined water level with a low water level,
The water level forming unit waits until the next use when forming said second predetermined level which is selected after use the toilet, and the water level in the third predetermined level which is selected before the start of measurement when the next use formation to urinate information measurement toilet of claim 1, wherein the. The urination information measuring toilet according to claim 2 , wherein the second predetermined water level is an overflow water level. The accumulated water level selecting means, characterized in that it has a set water level designating means for designating at least one of the set water level of the standby level or measurement start water level manually irrespective of the measurement result of the lower pressure variation effect level measuring means The urination information measurement toilet according to any one of claims 1 to 3 . During urination information measurement, when the sewage pressure fluctuation influence measuring means measures a pressure value different from the observed value used for selecting the water level selecting means,
The urination information measuring toilet according to any one of claims 1 to 4 , wherein information on measurement reliability is added to a result of urination information measurement. The lower pressure-change impacts amount measuring means is a sewage pressure measuring means for measuring the sewage pressure, according to claim 1 to 5, characterized in that to calculate the pooled water variation is the influence amount from the measured pressure variation amount Urination information measuring toilet according to any one of the above.

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