JP2797707B2 - Non-contact urine thermometer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a non-contact urine thermometer capable of measuring a temperature without contacting urine discharged from a human body.

[Prior Art and Problems to be Solved by the Invention] Conventionally, as a non-contact urine thermometer capable of measuring a body temperature in a deep part of a human body, there is, for example, a body temperature measuring toilet described in JP-A-63-189537.

That is, the body temperature measurement toilet is provided with a temperature sensor for measuring urine in a portion of the ball surface of the toilet bowl where urination is applied.

However, in the conventional body temperature measurement toilet, the inner surface of the toilet must be smooth from the viewpoint of urine scattering prevention and washing work, and since corrosion resistance is particularly high, hydrochloric acid is often used in the washing liquid. Acid resistance is required. Therefore, in the body temperature measuring toilet according to the conventional example, the temperature sensor is covered with a protective material having excellent corrosion resistance and thermal conductivity, and is embedded so as to be flush with the inner surface of the toilet. As a result, a reliable temperature measurement cannot be performed unless the temperature sensor can sense the temperature with a small amount of heat. Therefore, the temperature sensor is extremely small and is not practical including mechanical strength.

Moreover, since the toilet is usually made of ceramics and easily conducts heat, it is necessary to insulate the temperature sensor from the toilet body with a heat insulating material in order to measure the temperature with high accuracy. For this reason,
The minute temperature sensor as described above has to be buried in the toilet body together with the heat insulating material, so that there is a problem that it takes time to manufacture the toilet and attach the temperature sensor.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a practical non-contact urine thermometer which is easy to manufacture a toilet body and mount a sensor.

[Means for Solving the Problems] A non-contact urine thermometer according to the present invention has a configuration in which infrared rays emitted from urine discharged from a human body are detected by an infrared sensor to measure the temperature in order to achieve the above object. It is.

[Functions and Effects of the Invention] Therefore, according to the present invention, since infrared rays emitted from urinated urine are detected by the infrared sensor and the temperature is measured,
The temperature can be measured without bringing the infrared sensor into contact with urine.

For this reason, it is not necessary to bury the sensor covered with the protective material in the inner surface of the environmentally-friendly toilet as in the conventional example, and the manufacture of the toilet body and the mounting of the sensor are facilitated.

Moreover, since the infrared sensor does not need to come into contact with urine, there is no need to cover the sensor with a protective material, and the detection capability of the sensor does not decrease. This eliminates the need for the sensor to have a very small shape so that the temperature can be measured with a small amount of heat unlike the conventional example, and a sensor of a practical size can be used. There is an effect that a high temperature measurement can be quickly performed.

[Example] Hereinafter, an example of the non-contact urine thermometer according to the present invention will be described as a first example.
The description will be made with reference to the accompanying drawings in FIGS.

In the first embodiment, a non-contact urine thermometer 10 is integrated with the ceiling surface of the urinal 1 as shown in FIG. 1 to FIG.

The non-contact urine thermometer 10 is provided with a power switch 11, a display unit 12, and a buzzer 13 on an exposed surface on an upper side of a case made of a resin molded product, and a detection unit 14 provided on a lower side. is there.

As shown in FIG. 2, the detecting unit 14 has a condensing unit 20 formed of a Fresnel lens made of polyethylene or the like, a spherical lens made of BaF ₂ or the like, a parabolic mirror, or the like at an opening on the lower surface. After passing through 20, the infrared sensor 22 detects infrared rays that have passed between the substantially trapezoidal convergent converging surfaces 21a of the converging section 21. In order to increase the detection accuracy, it is necessary that the temperature detection area has a size included in the object to be measured. Therefore, it is preferable to narrow the temperature detection area as narrowly as possible.

The converging portion 21 is formed of iron, aluminum, or the like in order to enhance thermal contact with the case of the urine thermometer 10 and to achieve thermal stability around the infrared sensor 22. Then, by performing the blackening process on the converging surface 21a, the emissivity ε of the converging surface 21a becomes ε.
It is $ 1.

As the elements of the infrared sensor 22, a thermal type element such as a thermopile, a thermistor porometer, or a pyroelectric sensor that outputs a change in conductivity or an electromotive force generated by irradiation with infrared rays as an electric signal, PbSe, PbS
There is a quantum type that detects an optical quantum of infrared rays and directly outputs an electric signal as in the above. The infrared sensor 22 has a can package shape such as TO5, and is made of a window material made of silicon, germanium, or the like, or has a wavelength of 7 mm.
The infrared transmitting window is sealed with a window material that has been subjected to a band-pass filter processing that transmits only infrared light of about 12 μm.

In the converging section 2, a reference temperature measuring sensor 23 composed of a temperature sensor such as a thermistor or a diode is embedded in a portion located near the infrared sensor 22. The reference temperature measurement sensor 23 detects the ambient temperature of the infrared sensor 22, and measures a reference temperature when calculating a body temperature based on temperature data obtained by detecting infrared rays. However, the reference temperature measurement sensor 23 is the infrared sensor 22
However, the present invention is not limited to this case, and may be incorporated in the infrared sensor 22.

 Next, the method of use will be described.

First, after the power switch 11 is turned on, urine is discharged into the toilet 1, and the discharged urine is supplied to the infrared sensor 22 as shown in FIG.
When passing through the temperature measurement area, the infrared sensor 22 detects infrared rays radiated from urine and performs a temperature measurement, thereby displaying a measurement result on the display unit 12 and sounding a buzzer 13 notifying that the temperature measurement has been completed. The temperature measurement ends.

The infrared light of urine excreted from the human body is
As shown in FIG. 3, when the discharged urine crosses the temperature detection area of the infrared sensor 22 as shown in FIG. 3, the released urine hits the ball surface of the toilet 1 and flows to the urine outlet 2. If the ball surface heated by the urine itself and urine on the way is within the temperature detection region of the infrared sensor 22,
Further, it is conceivable that the released urine passes outside the temperature detection region of the infrared sensor 22 and passes through the temperature detection region of the infrared sensor 22 while flowing to the urine outlet 2.

Further, in this embodiment, the case where the urine thermometer 10 is integrally provided on the ceiling surface of the toilet 1 has been described. However, the present invention is not limited to this, and the urine thermometer 10 may be provided on the side of the toilet 1, and as shown in FIG. The detection unit 14 of the urine thermometer 10 may be arranged on the back side of the infrared transmitting thin plate 3 provided by cutting out a part of the ball surface of the toilet 1. This infrared transmitting thin plate 3 has a high infrared transmittance,
It is made of polyethylene resin or the like having a low thermal conductivity, and may be subjected to a blackening treatment on a surface that comes into contact with the released urine.

Next, a block diagram of the non-contact urine thermometer according to the first embodiment is shown in FIG.

That is, the infrared sensor 22 and the reference temperature measurement sensor
23 is an analog switch 26 via amplifiers 24 and 25, respectively.
The analog switch 26 is connected to an A / D converter 27.
Central control device that controls the operation of the thermometer via
It is called "CPU". ) 28 connected. This CPU 28
Read-only memory (hereinafter referred to as "ROM") 29 for storing a system program for itself and data necessary for executing the system program.
And a random access memory (hereinafter, referred to as a random access memory) for storing various data necessary for executing the system program.
"RAM". ) 30 and a reference signal generator 31 for generating a reference signal. Further, a power supply unit 32, a display unit 12 for displaying the measured body temperature, and a buzzer 13 for notifying the end of the temperature measurement are connected to the CPU 28 via the power switch 11.

Next, the operation will be described with reference to the flowchart shown in FIG.

First, when the power switch 11 is turned on and started, initialization is performed in step S1, the analog switch 26 selects the reference temperature measurement sensor 23 in step S2, and the control proceeds to step S3.
It is determined whether or not it is the sampling timing, and if it is not the sampling timing, the process waits. If it is the sampling timing, the reference temperature data is read and stored in step S4. Then, in step S5, the analog switch 26 selects the infrared sensor 22.In step S6, it is determined whether or not it is the sampling timing. If it is not the sampling timing, the process waits.If it is the sampling timing, the infrared data is read in step S7. , and the calculated temperature value (T _X) from the infrared data and the reference temperature data in step S8, step S9 the temperature value (T _X)
Is stored.

Further, in step S10, the measured temperature value is compared with the Peak Hold value to determine whether or not the Peak Hold value has been updated.If there has been no update, the process returns to step S2, and if there has been an update, the temperature rises in step S11. Informing by buzzer 13 that it is inside,
Peak Hold value in step S12 (T _X max) and the storing process, and displayed on the display unit 12 Peak Hold value (T _X max) in step S13, the flow returns to step S2.

In the second embodiment, as shown in FIGS. 7 to 10, the non-contact urine thermometer 10 is integrated into the toilet 1 in the first embodiment, Sucker total 10
It is detachably attached to the upper surface of the toilet 1 via a connector 15.

As shown in FIG. 8, the non-contact urine thermometer 10 is provided with a power switch 1 on an upper exposed surface of a case made of a resin molded product.
1, a display unit 12 and a buzzer 13 are assembled, while a detection unit 14 is provided below.

As shown in FIG. 7, the detector 14 connects the suction cup 15 to the toilet 1
When attached to the upper edge of the toilet, the lower surface opening facing the ball surface of the toilet bowl 1 has a light-collecting portion similar to that of the first embodiment.
20 is provided. The infrared light that has passed through the light condensing unit 20 passes through a substantially trapezoidal converging surface 21a, passes through the half mirror 35, and is detected by the infrared sensor 22. The converging surface 21a between the converging unit 20 and the infrared sensor 22 is formed by subjecting the inner peripheral surface of the converging unit 21 made of the same material as in the first embodiment to a blackening process. .

The half mirror 35 is capable of transmitting infrared rays for temperature detection having a wavelength of 7 to 13 μm and reflecting visible light emitted by a visible light emitting source 33 described later. The visible light emitting source 33 is composed of an LED and a red semiconductor laser, and emits the emitted visible light through the converging lens 34 to the half mirror.
The light is radiated to the surface 35 and is reflected by the half mirror 35 to irradiate the ball surface of the toilet 1 to mark the light indicating the urination position.

According to the present embodiment, a light mark is provided at a position on the ball surface of the toilet bowl 1 where urination is to be performed. Therefore, if the subject urinates toward the light mark, more accurate temperature measurement can be performed. The accuracy is improved.

In addition, the mark for making the urination position accurate is not limited to the light mark as described above, and the mark may be formed by coloring the ball surface of the toilet 1. The member may be embedded to serve as a mark. In such a case, the mark does not need to be simply in the shape of a ring, but may be, for example, a cross shape, a cross in a circle, or the like, and an arbitrary mark can be selected.

Since the method of use is almost the same as that of the first embodiment,
Description is omitted.

Next, a block diagram of the non-contact urine thermometer according to the second embodiment is shown in FIG.

This embodiment is almost the same as the first embodiment described above, except that the CPU 28 is connected to the aiming visible light emission source 33 via the aiming visible light control unit 36.

The operation is started by turning on the power switch 11 as shown in the flowchart of FIG. 10, and after being initialized in step S1, the visible light source 3 for aiming is set in step S1a.
Except that 3 is turned on, the rest is almost the same as the first embodiment, so that the description is omitted.

As shown in FIGS. 11 to 14, the third embodiment is almost the same as the above-described first embodiment, and differs from the first embodiment.
The embodiment is a non-contact urine thermometer having one infrared sensor 22, whereas the first, second, and third infrared sensors 22, 37, and 38 are arranged in the detection unit 14.

The other parts are almost the same as those of the above-described first embodiment.

According to the present embodiment, there is an advantage that the measurement accuracy is improved because the temperature detection region is increased.

Next, a block diagram of the non-contact urine thermometer according to the third embodiment is shown in FIG.

This embodiment is almost the same as the first embodiment described above, except that the first, second, and third infrared sensors 22, 37, and 38 are connected to the CPU 28 via the amplifiers 24, 39, and 40, respectively. The other points are the same as those in the above-described first embodiment, and a description thereof will be omitted.

Next, the operation will be described with reference to the flowchart shown in FIG.

First, when the power switch 11 is turned on and started, initialization is performed in step S101, the analog switch 26 selects the reference temperature measurement sensor 23 in step S102, and determines whether or not it is sampling timing in step S103. If not, wait for the sampling timing. If it is the sampling timing, read and store the reference temperature data in step S104, and in step S105, the analog switch 26 selects the first infrared sensor 22. It is determined whether or not there is, and if it is not the sampling timing, it waits for the sampling timing. If it is the sampling timing, the infrared data is read in step S107, and the temperature value (T _X1 ) is obtained from the infrared data and the reference temperature data in step S108. Calculate And step S10
At step 9, the temperature value (T _X1 ) is stored. Then, step S1
In step 10, the analog switch 26 selects the second infrared sensor 37. In step S111, it is determined whether or not it is the sampling timing. If it is not the sampling timing, the process waits for the sampling timing. Is read, a temperature value (T _X2 ) is calculated from the infrared data and the reference temperature data in step S113, and the temperature value (T _X2 ) is stored and processed in step S114. Further, the analog switch 26 selects the third infrared sensor 38, and determines whether or not it is the sampling timing in step S116. If it is not the sampling timing, it waits for the sampling timing. Is read, and in step S118, a temperature value (T _X3 ) is calculated from the infrared data and the reference temperature data.
_{Stores the} temperature value (T _X3 ). Then, step S12
Calculate the maximum value (T _X max) from the temperature values T _X1 , T _X2 , T _X3 with 0,
This maximum value (T _X max) is stored and processed as a Peak Hold value in step S121, and in step S122, the Peak Hold value (T _X ma
x) is displayed on the display unit 12, and the process returns to step S103.

The fourth embodiment is substantially the same as the above-described second embodiment as shown in FIGS. 15 to 19, except that the toilet 1 is provided with a heating means 17 capable of warming the temperature detection region to near the body temperature. Is a point.

As a heating method, for example, as shown in FIG.
A heating means may be provided by providing a heat transfer type heater on the back side of the preheating plate 4 provided in the temperature detection area on the ball surface of the toilet bowl 1 as shown in FIG.
17 may be provided for heating. In addition, as the preheat plate 4, a stainless plate or the like in which a surface in contact with the released urine is subjected to a blackening treatment is used.

In each of the above-described embodiments, the power switch 11, the display unit 12, the buzzer 13, and the temperature detection switch 16 are mounted on the exposed surface on the upper side of the resin molded product of the non-contact urine thermometer 10.

The other parts are almost the same as those of the above-described second embodiment and the first embodiment, respectively. However, the embodiment shown in FIG. 15 is not provided with a means for marking light.

According to the present embodiment, the temperature measurement area of the bowl surface of the toilet 1 is preheated in advance, so that even if the released urine contacts the ball surface in the temperature measurement area, the temperature is rapidly lowered. Therefore, there is an advantage that it is possible to prevent a decrease in temperature measurement accuracy, particularly in wintertime.

Next, a block diagram of the non-contact urine thermometer according to the fourth embodiment is shown in FIG.

This embodiment is almost the same as the first embodiment described above, except that the temperature detection switch 16 is connected to the CPU 28 and the heater 17 is connected via the heater power supply unit 41.
The other parts are the same as those in the first embodiment, and the description is omitted.

The operation will be described with reference to the flowcharts shown in FIG. 18 and FIG.

When the power switch 11 is turned on and started, step S2
01, the analog switch 26 selects the reference temperature measurement sensor 23 in step S202, and step S203
It is determined whether or not it is the sampling timing.If it is not the sampling timing, the process waits.If it is the sampling timing, the reference temperature data is read and stored in step S204.In step S205, the analog switch 26 controls the infrared sensor 22. In step S206, it is determined whether or not it is the sampling timing. If it is not the sampling timing, the sampling timing is waited. If it is the sampling timing, the infrared data is read in step S207, and the infrared data and the reference temperature are read in step S208. A temperature value (T _X ) is calculated from the data and the temperature value (T _X ) is stored and processed in step S209, and the process proceeds to step S210.

In step S210, it is determined whether or not the temperature detection switch 16 is ON, and if it is determined that the temperature detection switch 16 is ON, the heater 17 is turned OFF.
And compare the measured temperature value with the Peak Hold value.
Judge whether the value has been updated or not
Returning to S202, if it is determined that there is an update, step S2
At 13 the buzzer 13 notifies that the temperature is rising, the Peak Hold value is stored and processed at step S214, and
After displaying the k Hold value on the display unit 12 and displaying a mark indicating that the temperature is being measured on the display unit 12, step S2
Return to 02.

On the other hand, the temperature measurement value at the ball surface is displayed on the display unit 12 in real value in step S216 when the thermometer switch 16 in step S210 is determined not to turned ON, the temperature value measured in step S216 is specified value (T _M) For example, the control target temperature value (T _M = 32
° C), the heater 17 is turned on in step S218 and proceeds to step S220 if it is determined that the temperature is lower, and if not, the heater is determined in step S219.
Turn off 17 and proceed to step S220.

Next, it is determined whether or not the preheat temperature on the ball surface is stable in step S220, and when it is determined that the preheat temperature is stable, a mark indicating that the preheating temperature is stable is displayed on the display unit 12 in step S221, and the process proceeds to step S202. Returning, if it is determined that it is not stable, a mark indicating that it is stable is displayed on the display unit 12.
And returns to step S202.

[Brief description of the drawings]

1 to 6 show a first embodiment of the non-contact urine thermometer according to the present invention. FIG. 1 is an overall perspective view, FIG. 2 is a partial sectional view of a main part, and FIG. FIG. 4 is a sectional view showing an application example, FIG. 5 is a block diagram, FIG. 6 is a flowchart, FIG. 7 shows a second embodiment according to the present invention, FIG. FIG. 8 is an enlarged perspective view of a main part, FIG. 9 is a block diagram, FIG. 10 is a flowchart, FIGS. 11 to 14 show a third embodiment according to the present invention, FIG. FIG. 12 is a sectional view of a main part, FIG. 13 is a block diagram, and FIG.
15 to 19 show a fourth embodiment according to the present invention. FIG. 15 is a perspective view, FIG. 16 is a sectional view, FIG. 17 is a block diagram, FIG. 18 and FIG. The figure is a flowchart. 10 ... non-contact urine thermometer, 22 ... infrared sensor.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E03D 9/00-9/16 G01J 5/00 G01J 5/10 G01N 33/493

Claims (1)

(57) [Claims] 1. A non-contact urine thermometer which detects infrared radiation emitted from urine discharged from a human body by an infrared sensor and measures the temperature.