JPS60239622A - Water level monitor of bath - Google Patents

Abstract

PURPOSE:To detect water level and temperature of a bath, by arranging a monitoring device outside the bath and a plurality of sensors inside it. CONSTITUTION:A CPU, A/D convertor, etc. are provided in a monitoring device 3 of a bath and with this CPU a water level setting device 33 available for setting properly a water level inside a bath by applying its value in this CPU and a water temperature setting device 32 applying a value in the CPU for proper setting of temperature of the bath are connected. Further, the device is so constructed that a proper water level and proper temperature are reported by a command from the CPU through a speaker 36. Further, the detecting section 31 is provided with temperature sensors (S0-Sn) in almost equidistance in the direction of depth of water and these sensors delivers such a magnitude of analog voltage approximately proportional to the temperature for A/D conversion and application to the CPU. Consequently, temperature at each level of water inside the bath can be obtained, uniformalized and detected for the average water temperature and a water level of the bath can be detected by a temperature difference of each temperature sensor based on difference of water temperature and atmospheric temperature.

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to a bath monitoring device that monitors the water level and temperature of a bath, and more specifically, it relates to a bath monitoring device that can be detachably installed outside the bathtub, and This invention relates to a bath monitoring device that has both a bath water temperature monitoring function and a bath water level monitoring function.

<Prior Art and Problems> In a conventional bath monitoring device that detects and monitors the water level and temperature of a bath, the water level monitoring device and the water temperature monitoring device are provided separately.

For example, a known water level monitoring device is one equipped with a flow-type water level detector that floats a float in a bathtub and detects the water level at the height of the float in the bathtub.
Since this water level detector detects the water level by the mechanical movement of the float sliding up and down inside the cylindrical body, the float may not slide smoothly due to water scale adhering to the cylindrical body and the float, resulting in malfunctions. Disadvantages include short life due to poor contact of contacts due to rust, and the fact that this water level detector requires a cylindrical body to guide the vertical movement of the float, making it large and difficult to handle. It was inconvenient when bathing, and it also got in the way when taking a bath.

In addition, even with conventional water temperature monitoring devices, water temperature detection can only be done once.
Temperature sensors were installed in the bathtub as appropriate, and the water temperature was detected and monitored based on the values obtained by the temperature sensors. Especially in the winter, there is a large difference between the water temperature at the bottom and the water temperature at the surface, so when you know the temperature in one place and reach that temperature, you judge that the temperature of the water body is suitable for bathing. However, the set temperature must be changed every time the season changes, and it is difficult for the above-mentioned monitoring device to accurately detect whether the overall water temperature in the bathtub is suitable for bathing. The water had to be stirred and the desired water temperature determined at one point, and much work was required.

Furthermore, it is necessary to separately install the water level monitoring device and the water temperature monitoring device in the bath, which is cumbersome and expensive.

<Object of the Invention> The present invention has been made in view of the above circumstances, and is equipped with both functions of a water level detection means and a water temperature detection means that easily and accurately detect the water level and averaged water temperature of the bath. An object of the present invention is to provide a unitized detachable bath monitoring device equipped with a notification means capable of notifying numerical values and the like.

<Structure and Effects of the Invention> In order to achieve the above object, the present invention includes a main body disposed outside the bathtub, and a strip-shaped detection section that extends downwardly from the main body in the depth direction inside the bathtub. a plurality of temperature sensors arranged sequentially in the depth direction of the bathtub in the detection section; a calculation means for calculating and outputting an average value and a difference of signals from the temperature sensors; and an output from the calculation means. and notification means for notifying.

Therefore, since the temperature of each water level in the bathtub is averaged and the average water temperature is determined, there is no need to stir the water every time the temperature is measured. It has the effect that it is possible to know whether or not the water level is high, and it also has the effect that it is possible to detect the water level of the bath by knowing the temperature difference between each temperature sensor based on the difference between the water temperature and the air temperature.

<Embodiments of the Invention> Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings. FIG. 1 is an external perspective view of a bathroom monitoring device according to the present invention, and FIG. 2 is a partially enlarged perspective view of FIG. 1. 1 designates a bathtub, which is provided with pipes 11 , 12 which lead water to the combustion device 2 . Further, a bath monitoring device 3 is detachably installed in the combustion device 2. The bath monitoring device 3 is composed of a box-shaped main body 30 and a belt-shaped detection unit 31 hanging down from a side 30a of the main body 30. In addition, the main body portion 3
A rotary water temperature setting device 32 and a rotary water level setting device 33 are provided on the front surface 30b of the 0, and a side setting device 3 is provided.
2 and 33, there is a water temperature indicator 34 and a water level indicator 35.
is provided.

Further, a speaker 36 is provided on the side portion 30a of the main body portion 30.
is provided. Furthermore, the detection unit 31 has (
n+1) temperature sensors So, St, S2=
, Sn are scattered at approximately equal intervals in the depth direction.

FIG. 3 is a block diagram illustrating the hardware.

Code S. +s, 1st,..., Sn are the above-mentioned temperature sensors, which output an analog voltage approximately proportional to the temperature, and the output is input to the converter 41 via the connecting cable. . The converter 41 includes (n+1) temperature sensors S. .

The analog voltages proportional to the temperature of s, l s2+..., Sn are each converted and output to the CPU 42.

The CPU 42 is controlled by a memory 43 in which programs are stored according to a flowchart described later. CPU
Pushbutton switches 44 and 45 as input devices of 42 are switches for switching between water level monitoring mode and water temperature monitoring mode, respectively.By pressing the switch 45, the CPU 42
becomes the water level monitoring mode, and by pressing the switch 44, the CPU 42 is set to the water temperature monitoring mode. or,
At the input end of the CPU 42, the water level m setting device 33 is provided, where m is an integer from 0 to n, the user selects m as appropriate, and causes the CPU 42 to input the value to set the appropriate water level in the bathtub; The value for users to set the appropriate temperature for the bath is C.
A water temperature setting device 32 input to the PU 42 is connected. Further, reference numeral 46 denotes a speech synthesizer that synthesizes speech according to instructions from the CPU 42, and the output thereof is output from the amplifier 4.
7 from the speaker 36 to report the appropriate water level and temperature state of the bath to the user.

FIG. 4 is a flowchart explaining the software. A program created thereby is stored in the memory 43, and the CPU 42 issues various commands in accordance with the program.

The flowchart starts with START, and first, in step STI, it is determined whether or not water level monitoring is to be set. If the water level setting push button 45 has been pressed, the process proceeds to step ST2, and if it has not been pressed, the process proceeds to step ST3. In step ST2, it is determined whether the difference between the output of the temperature sensor So and the output of the temperature sensor S is O. If it is 0, proceed to step ST4; if not, proceed to step ST5. . Step ST4 is a judgment as to whether one minute has passed since the start of the routine. If one minute has not passed, the process returns to step ST2; if it has, the process proceeds to step ST6. Here, the value of one minute is determined. is not limited to this, and any time can be used as long as it is possible to confirm that no water is present. In step ST6, the speaker 36 outputs a voice saying "please add water". After this, the routine ends.

Step ST5 is a process of substituting 1 for 1, and the process proceeds to the next step ST7. Step ST7 is the temperature sensor Si
It is determined whether the difference between the output of the temperature sensor and the output of the temperature sensor 5ins is 0 or not.
Return to step ST8, and if it is 0, proceed to the next step ST8.

In step ST8, the speaker 31 outputs "'(i+1)".
This is a process that outputs a voice saying "Water has filled up to the 3rd level."
Proceed to the next step ST9. Step ST9 is a process of incrementing by 1, and the process proceeds to the next step 5TIO. In step 5TIO, it is determined whether or not m set by the user using the water level m setting device 33 is equal to ■.If they are equal, the process proceeds to the next step 5TII, and if they are not equal, the process proceeds to step ST7. Step 5 TII is speaker 3
6, the process outputs a voice saying "The water is full", after which this routine ends.

Step ST3 is a judgment as to whether temperature monitoring is to be set or not. If the temperature setting push button 44 is pressed, the process advances to step 5T12, and if it is not pressed, step ST3 is performed.
], proceed to 7. Step 5T12 is a process of reading out the water level value m set by the user using the water level m setting device 33, and the process proceeds to the next step 5T13. Step 5T13
is the underwater temperature sensor So + S, l S2,...
This is the process of reading the output values of Sm, and the next Stesoge 5
Proceed to T14, step 5T14 is step 5T13
This is an arithmetic process of calculating the average of the output values read in, and the process advances to the next stethoscope 5T15. Step STI 5 is a judgment as to whether or not the average value determined in step 5T14 is equal to the set temperature set by the user using the water temperature setting device 32. If they are equal, the process proceeds to the next step 5T16 and the average value is determined to be equal. If so, the process returns to step 5T13. step STI
6 is a process in which the speaker 36 outputs a voice saying "The water is boiling", and after this process, this routine ends.

Step 5T17 is a process for performing other processes, such as error processing. After this, the routine ends.

Note that if the water tap and combustion device 2 are directly controlled by the CPU 42, it is possible to achieve effects such as prevention of overfilling and prevention of overheating. Further, the calculation by the CPU 42 may be performed with reference to a conversion table.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an external perspective view of the bath monitoring device of the present invention and a bath to which the device is applied, FIG. 2 is a partially enlarged perspective view of FIG. 1, and FIG. The figure is a block diagram explaining the hardware of this device, and Figure @4 is a flowchart explaining the software of this device. l・Bathtub, 3・Bath monitoring device, 42...CPU, 34
-Water temperature display, 35...Water level display, 36...Speaker, So, S+, St, -, Sn temperature sensor. Patent applicant Tateishi Tonki Co., Ltd.

Claims (1)

[Claims] A main body disposed outside the bathtub; a belt-shaped detection section extending in a hanging direction from the main body section and disposed in a depth direction within the bathtub; and a strip-shaped detection section disposed in the depth direction in the detection section. a plurality of temperature sensors, a calculation means provided in the main body for calculating and outputting an average value and a difference of signals from the temperature sensors, and a notification means for notifying the output from the calculation means. bath monitoring device.