JPH03224564A - Data signal processing control for various detecting sensors in bubble generating bathtub - Google Patents

Abstract

PURPOSE:To adopt exact data by rejecting data signals of the maximum value and the minimum value of the data signals of four times in the data signals of a sensor for detecting a state of bath hot water of a water temperature, hydraulic pressure, etc., and adopting an average value of two pieces of intermediate data signals thereof. CONSTITUTION:Detection values of each sensor Sp, T are read continuously four times into a control part C at a very short time interval, and an average value of two pieces of intermediate detection value data is adopted as defined detection value data. Four pieces of data signals inputted continuously to the control part C at a very short time interval are inputted at a sufficiently shorter time interval than a speed at which a bath hot water state is varied, therefore, a state of bath hot water of the same state is detected. Accordingly, probability that a variance is generated greatly due to an accidental factor in two pieces of intermediate signals becomes extremely low. In such a way, by adopting an average value of such two pieces of data signals, probability that the detection value data being near a true value can be defined becomes extremely high.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to data signal processing control of various detection sensors in a bubble generating bathtub.

(b) Conventional technology Conventionally, air is sucked in while circulating the bath water in the bathtub body via a bath water circulation pump configured separately from the bathtub body, and air bubbles are ejected from the jet nozzle along with the bath water. There is a bubble-generating bathtub constructed as follows (Japanese Patent Application Laid-Open No. 135058/1983).
.

Moreover, such a bathtub can be configured such that a sensor for detecting the temperature, pressure, etc. of the bath water is provided at an appropriate location, and the output signal is received by the control section to control various devices (especially Application No. 1-130617, Patent Application No. 1-1
No. 37902).

For example, when a temperature detection sensor detects water temperature, it outputs a data signal, and if the data signal exceeds a certain temperature, the bath water circulation pump is controlled to stop operating for safety.

(C) Problems to be Solved by the Invention However, since the data detected by such a detection sensor is not accurate if it is collected only once, a plurality of data signals are required.

How these multiple data signals are processed and used as accurate data has a great influence on the operation of various devices based on this pig.

In this invention, it is possible to employ as accurate data as possible in such data processing.

(d) Means for Solving the Problems This invention provides a bath water circulation flow path between a bathtub body and a bath water circulation pump installed outside the bathtub body, and communicates with the bath water circulation flow path. While inhaling air from the connected air intake,
In a bubble-generating bathtub configured to be able to eject bathwater mixed with bubbles from a plurality of jetting nozzles installed in the bathtub body, sensors are installed at predetermined locations to detect bathwater conditions such as water temperature and water pressure. The configuration is configured so that the plurality of data signals obtained by the sensor can be outputted to the control unit to control the operation of various devices, and the data signals of the maximum value and minimum value of the four data signals obtained by the same sensor are output. The present invention aims to provide data signal processing control for various detection sensors in a bubble-generating bathtub, in which the average value of the two data signals in between is adopted.

(E) Function/Effect In this invention, bath water mixed with air bubbles is spouted from a jet nozzle by operating a bath water circulation pump, and various sensors installed at required locations measure water temperature and water pressure during the process of air bubble generation operation. etc., and outputs the detected data signal to the control unit to control the operation of various devices.

At this time, among the signals output from the sensor, the maximum and minimum data signals of the four data signals are discarded, and the average value of the two intermediate data signals is used.

That is, among the four detected values above, there is only one abnormal detected value.
Even if there are a number of abnormality detection values, it is possible to eliminate the adverse effects caused by this abnormality detection value.

Note that it is extremely rare for two or more abnormal detection values to occur, and even more rare for two abnormal detection values to be unevenly distributed on either the large or small side. It can be almost completely eliminated.

Therefore, since accurate data signals can be used, the operation of various devices can be accurately controlled.

(F) Example First, the overall structure of the bubble-generating bathtub according to the present invention will be explained.

Shown in Figure 1 (^) is the bubble-generating bathtub according to the present invention, which includes the bathtub body (B) installed in the bathroom, various devices attached to it, and the functional part case (E) installed outdoors. It consists of various equipment installed in the

The bathtub body (+3) has a total of six jet nozzles (2), (3), and (4) on the foot side, back side, and chest side, respectively, on the front and rear walls and left and right side walls of the bathtub body (13), which is formed into a box shape with an open top. There are several.

In addition, a flange-shaped edge of a certain width (
1), and an air intake part (5), an infrared signal receiving part (R1), and an operation panel (93) are provided on the same edge part (1).

Each of the ejection nozzles (2), (3), and (4) communicates with the air intake section (5) via an intake vibe (8).

The functional part case (C) has a bath water circulation pump (1
)), an inverter (1) that controls the pump drive motor (M), a control unit (C) that controls the motor (M) and the motor (Ml) for driving the valve body for the nozzle, and a controller for bath water filtration. A filter (1') and an electric three-way valve (Ve) that controls the filter (P) are provided.

The water intake port (9) provided at the bottom of the side wall of the bathtub body (B)
4) and the suction port (32e) of the bath water circulation pump (P), a bath water suction vibrator (10) for sending bath water from the bathtub body (B) to the bath water circulation pump (P) is interposed. At the same time, the bath water circulation pump (P) and each jet nozzle (2) (1) (4
), a bath water bullet conveying vibe (11) for sending bath water from the same pump (P) to the bathtub body (B) is interposed to form a bath water circulation flow path (D). There is.

(R1) is an infrared signal receiving section that receives an infrared signal from the remote controller (R), and is connected to the control section (C).

With the above configuration, by operating the remote controller (R), the output frequency of the inverter (+), which will be described later, can be controlled via the control unit (C), and the motor (old) for driving the nozzle valve body forward and backward. , adjust the bath water jet pressure to each jet nozzle (
The operation of the filter (F) can be controlled by changing or adjusting each of 2), (3), and (4), or by controlling the electric three-way valve (Ve).

As shown in Fig. 2 and Fig. 2a, the functional part case (E) is formed into a substantially rectangular parallelepiped shape, and has a shelf board (El) inside.
The interior space is divided into two vertically by installing an earth leakage breaker (ELB), a fan (r'l), an isolation transformer (Tl), an Ft source toshitransr r), and a noise filter on the top surface of the shelf board (Bl). (F n ), an inverter (1), and a control unit (C) are installed.

The inverter (1) changes the output frequency under the control of the control unit (C) to steplessly change the rotation speed of the pump drive motor (M), as shown in Fig. 3. , single-phase AC 100V power from the commercial power supply (S) is transferred to the power transformer (T"), rectifier ("), and smoothing capacitor (C").
) is converted to DC 200V and supplied to the switching circuit (Sv) built in the inverter (1), and the switching frequency of the switching circuit (Sv) is transmitted from the control unit (C) via the inverter control circuit (LC). By controlling in accordance with the control code, the output frequency of the inverter (1) can be changed arbitrarily.

Therefore, under control from the control unit (C), the rotation speed of the bath water circulation pump (P) connected to the pump drive motor (M) is changed to nullify the discharge pressure and discharge amount of the pump (P). It will be possible to change the stage.

The control unit (C) is provided on a substrate (CI) that stands on the inner surface of the inverter at a predetermined distance.

A filter (F), a hot water circulation pump (P), and an electric three-way valve (We) are arranged below the shelf board (El).

As shown in Fig. 4, the bath water circulation pump (P) has an upper impeller chamber (33) and a lower impeller chamber (34) connected to each other via a communication channel (32d) in a pump casing (32). and form the lower impeller chamber (34)
is communicated with the bath water suction vibe (10) via the bath water suction passage (32a) provided on the lower side of the pump casing (32), and the bath water bullet feeder provided on the other side of the lower portion of the pump casing (32). The bathing bullet sending vibrator (1
1).

Then, an impeller shaft (35) is mounted so as to vertically pass through the central part of the upper and lower impeller chambers (33) (34), and the upper impeller (33) is mounted on the impeller shaft (35).
a) and the lower impeller (34a) are installed coaxially within the upper and lower impeller chambers (33) and (34), respectively, and the impeller shaft (35) is mounted integrally and watertightly on the pump casing (32). The installed pump drive motor (M
) is interlocked and connected to the drive shaft (39).

A rectifier plate (29) is provided protruding from the end of the bath water suction path (32a) to rectify the bath water sucked into the lower impeller chamber (30), thereby increasing pump efficiency.

Further, the upper impeller chamber (33) is communicated with a lead-in pipe (41) of a filter (P), which will be described later, via a filter bullet feed path (32c) provided on the negative side of the upper impeller chamber (33).

(3B) is the mechanical seal attached to the impeller shaft (35), (39a) is the motor casing of the pump drive motor (M), (39b) is the rotor, (39c) is the fixed magnetic pole, (39d) is the water A cooling fan that also serves as a slinger, (39o) is a cooling intake port, (391') is a cooling exhaust port, (32e) is an intake port, (34b) is a communication hole, (
32g) is the upper spout, (Zl) is the circulation flow direction, (z
2) is the filtration flow direction.

With the above configuration, when the pump drive motor (M) is rotated, the rotation of the bathtub body (B) - bath water suction vibe (10) - suction port (32e) -> lower impeller chamber (34) -> bath water forced flow path (32b) )-Bathtub delivery vibrator (11)-Bathtub body (B)
It is pumped in this order. In addition, some of the bath water sucked into the lower impeller chamber (34)
) Continuous flow path (32d) - Upper impeller chamber (33) -
Lead pipe (41) → Filter machine (P) → Return pipe (4
2) - Bath water bullet feeding vibrator (11) - Bathtub body ([3)] are circulated in this order.

In addition, as shown in Fig. 5, the pressure transmission path of the pressure sensor (Sp) that detects the water level of the bath water is connected to the bath water circulation pump (P).
Bath temperature suction path (32a) side wall I, J opening (Spl) L
A temperature sensor (T) for detecting the bath water temperature is provided in the lower impeller chamber (34). Therefore, the bathtub body (1
3) The water level and temperature of the bath water inside is controlled by the bath water circulation pump (1).
) no m! 1111 will be determined.

Therefore, the water level and temperature of the bath water in the bathtub body <8) will be measured at the position of the bath water circulation pump (P).

The filter (F) is a downflow type filter that can backwash the filter medium,
As shown in Fig. 6, the assembly bolt (28c) is made by inserting the upper and lower shells (28r) (28g), each formed into a substantially cylindrical shape with a bottom, through the upper and lower flanges (28d) (28e) provided around each opening. Connect to the filter body (43a)
, and a support net (
43b), and upper and lower baffle plates (
43d) (43r) are stretched at intervals, and bead-shaped filter media (43c) are filled on the net (43b) between the lower baffle plate (43r) and the support net (43b). ing.

A lead-in pipe connecting portion (4) is connected to the upper end of the filter body (43a) through a lead-in pipe (41) to the upper impeller chamber (33) of the bath water circulation pump (P).
1a) and a bath water bullet delivery vibe (
An exhaust pipe connection part (Ha) communicating with the main body (43a) is provided, and a return pipe connection part (42a) is provided at the lower end of the main body (43a) and communicating with the bath water bullet feeding pipe (11) via a return pipe (42). ) has been established.

(28b) is a reinforcing rib, and (29a) is an O-ring.

The electric three-way valve (We) is connected to the middle part of the lead-in pipe (41), and a drain pipe (46) is connected to one end of the three-way valve (Ve) to open the flow path of the three-way valve (We). By switching, the bath water from the upper impeller chamber (33) is filtered by passing it through four layers formed of filter media (43c) from top to bottom, or backwashing is performed, that is, the bath water is The bath water from the lower impeller chamber (34) of the circulation pump (P) is made to rise in the filter main body (43a) to break up the four layers and flow the filter material (43c).
3c) Clean the filter slag that has accumulated or adhered to the drain pipe (
46) to be discharged.

Next, various devices installed in the bathtub body (B) will be explained.

The foot side, chest side, and dorsal side jet nozzles (2), (3), and (4) are
Each uses an automatically variable spout nozzle having the same construction that can automatically change the spout amount and jet pressure of bath water, and will be explained with reference to FIG. 7.

The spout nozzles (2), (3), and (4) are connected to a bottomed cylindrical nozzle body (20) attached to a spout nozzle connection port (9) formed on the side wall of the bathtub body (B), and the nozzle body (20). (
The valve seat forming cylinder (2I) fitted into the bathtub body (B) from the valve seat forming cylinder (2I)
1a), a jet m adjusting valve body (22) that approaches and separates from the rear of the nozzle valve body (22), and a nozzle valve body advancing/retracting drive motor (Ml) that causes the jet amount adjusting valve body (22) to perform the above-mentioned approaching/separating operation; It consists of a throat (24) swingably supported at the front part of the valve seat forming cylinder (21).

In addition, an intake pipe connection part (20b) is opened in the inner circumferential wall of the central part of the nozzle body (20), and the inside of the valve seat forming cylinder (21) and the air intake part (5) are connected via the intake pipe (8). are communicating.

In addition, a bullet-feeding vibration connecting part (20c) is opened in the inner circumferential wall of the rear part of the nozzle body (20), and the inside of the rear part of the valve seat forming cylinder (21) and the bath water bullet-feeding vibe (11) are communicated with each other. ing.

The motor (Ml) for driving the forward and backward movement of the valve body for the nozzle is a stepping motor, and a ball screw mechanism (BS) is interposed between the valve body (22) for adjusting the jet amount and the valve body (Ml) for adjusting the jet m. 22) can be brought into and out of contact with the valve seat (21a).

(230 is a valve body position sensor consisting of a magnet and a magnetic Hall element.

With the above configuration, the bath water from the bath water circulation pump (P) passes through the gap between the valve seat (21a) and the jet amount regulating valve body (22), and the bath water jets out from the valve seat (21a). Negative pressure is generated, allowing air from the air dust inlet (5) to be mixed into the spouting bath water, and furthermore, by operating the nozzle valve body advance/retreat drive motor (Ml), the strength of the bath water spout can be increased. can be adjusted.

Although each of the jet nozzles (2), (3), and (4) have the same configuration, the motor (Ml) for driving the nozzle valve body forward and backward of each jet nozzle (2), (3, and 4) is controlled by the control unit ( C)
Therefore, each of the jet nozzles (2), (3), and (4) can be made to take on a different bath water jetting form.

As shown in FIG. 8, the air intake part (5) is connected to the bathtub body (
D) is provided on the edge (1), and the top opening of the air intake body (80) is covered with the lid body (82) with left and right openings, and only on the outside of the body (82). The formed air intake port (82a) allows the inside of the air intake portion main body (80) to communicate with the outside air.

In addition, the central part of the bottom of the air intake main body (8o) is connected to each of the jet nozzles (2), (3), and (4) through the intake high (8).
1. : Communicating. (92) is a silencer.

The control unit (C) is disposed on the substrate (Ct), and as shown in FIG. 1, includes a microprocessor (5o),
Input/output interfaces (51) (52) and memory (
53) and an input interface (53).
I) includes a valve body position sensor (23j) and a pressure sensor (
Sp), temperature sensor (T) and infrared signal receiver (R1)
is connected to.

The output interface (52) includes an inverter (1)
, a motor for driving the nozzle valve body forward and backward (Ml), an electric three-way valve (Ve), various display lamps, etc. are connected.

The memory (53) controls each motor (M) (Ml), electric three-way valve (Ve), etc. based on the signals from each of the above-mentioned sensors and the signal from the remote controller (R), and controls each jet nozzle. (2), (3), and (4) stores a program that can execute six types of bath blow modes and three types of variations for each blow mode.

Note that the detected values of the pressure sensor (Sp) and temperature sensor (T) connected to the human power interface (51) tend to vary due to chance factors, and the detected values are transmitted to the control unit (C) as a data signal. However, noise is likely to be mixed in during the bubble generation bathtub (A), and if the operation of the bubble generating bathtub (A) is controlled based on the accuracy of the detection value data of - times, there is a possibility that malfunctions may occur.

Therefore, in the present invention, each time the detected value data is read,
The detected values of each sensor (Sp) (T) are read into the control unit (C) four times in succession at very short time intervals (approximately 100 g+see) as data signals, and the maximum and minimum values are rounded down. By using the average value of the two intermediate detected value data as the final detected value data, large variations in the data signal caused by chance factors can be eliminated,
The detected value can be determined statistically with sufficient accuracy.

In other words, the control unit (C)
The four data signals manually input are detected at sufficiently short time intervals compared to the rate at which the bath water condition changes, so it is safe to assume that they are detecting the same bath bath condition. , it is reasonable to assume that the variation in the data signal follows a normal distribution.

Therefore, the probability that large variations will occur in the middle two data signals excluding the maximum and minimum values of these four data signals due to chance factors is extremely low, and the average value of these two data signals is adopted. By doing so, the probability of determining detected value data close to the true value becomes extremely high.

The detected value data of each sensor (Sp) (T) is used for the operation of the bubble generating bathtub (^), which will be explained later, and contributes to accurate operation.

The remote controller (R), as shown in Figure 9,
On the front are various switches (R4) for controlling the bubble generating bathtub (^), such as ON/OFF switches and blow mode switches, and a liquid crystal panel (R5) that displays the operating status of the bathtub (A). In addition, an infrared signal transmitter (R3) is provided at the front end of the infrared signal transmitter (R3), which converts the electrical signals from each of the above switches into a serial code signal set in advance for each δ switch, and transmits the infrared signal. Part (R3)
transmits infrared rays as a carrier.

The serial code signal is received by an infrared signal receiving unit (R1), which will be described next, is converted into an electrical signal, and is input to the input interface (51,) of the control unit (C),
By controlling the operation of the corresponding actuator according to the control program stored in the memory (53) using the human power signal, the bubble generating bathtub (^) can be brought into the operating state corresponding to the operation of each switch.

As shown in FIG. 10, the infrared signal receiving section (old) has an operation panel (9
3), and the same panel (93) is equipped with various switches similar to the remote controller (R), an LED for displaying the operating status corresponding to each switch, and a filter cleaning switch. There is.

With the above configuration, actuators such as the pump drive motor (M) and the nozzle valve advancement/retraction drive motor (old) can be operated by operating the remote controller (R) on the bath water surface or the switch on the operation panel (93). control,
The rotation speed of the bath water circulation pump (P), each jet nozzle (2) (
3) Adjust the opening/closing amount of the jet volume regulating valve body (22) in (4) to control the jet volume and jet pressure of the bath water spouted from each jet nozzle, and correspond to the various blow mode switches described above. You can select the bath blow mode and its variations.

In addition, by turning on and off the filter cleaning switch provided on the operation panel (93), the timer function of the control program is used to switch the electric three-way valve (vO) for a certain period of time to clean the filter (P). Filter media can be backwashed.

Hereinafter, the operation of the bubble generating bathtub (A) will be explained based on the flowchart of FIG. 11.

Figure 11 shows the main routine, turning on the power
(200) Then all the jet nozzles (2) (3)
(4) The output frequency, etc. of the motor (old) for driving the nozzle valve forward and backward and the inverter (1) are initialized (2■)
.

In addition, in the above initialized state, each jet nozzle (2)
(3) The valve body (22) in (4) is 6mm from the fully open position.
-The valve is open, allowing smooth supply and drainage of bath water.

During the above initialization, the bath water circulation pump (P) maintains the stopped state (215), and the control unit (C) controls the pressure sensor (Sp
) and temperature sensor (T), the temperature sensor (T) detects the bath water temperature (220
), If this is within the range of 5°C to 50°C (Y), detect the state of the operation switch (225), and if it is ON (Y), detect the bathtub water level from the output of the pressure sensor (Sp). (227), the water level is above which blow operation is possible (Y), and the temperature sensor (T) detects the bath water temperature (
230) If the water temperature is such that blowing operation is possible (Y), the subroutine is executed in accordance with input instructions for various blowing operations, filter cleaning, etc. from the remote controller or operation panel (500).

Next, detect ON/OFF of the operation switch (99
5) If it is ON (Y), the process returns to step (230) and continues execution of the above subroutine.

Also, in step (220), if the water temperature does not allow blow operation (N), the bath water level is detected (235), and if it is higher than the water level that allows blow operation (Y), the bath water temperature is detected (237). ), if the temperature is less than 5° C. (Y), the freeze prevention operation subroutine (300) is executed.

Note that if the bath water temperature is not below 5° C. in step (237) (N), a high water temperature warning (400) is issued and the operation is stopped (215).

In addition, if the water level is below which blow operation is possible in step (235) (N), a water level drop warning (410) is issued.
The blowing operation is stopped (215).

Note that the water level at which blow operation is possible means that the water level of the bath water is at least at the water intake port (94) provided in the bathtub body (B), and
Conditions such as the location being higher than the top of the highest jet nozzle are met, and the temperature of the bath water is 5.
A water temperature within the range of 50°C to 50°C is considered to be a water temperature that allows blowing operation.

Claims (1)

[Scope of Claims] 1) A bath water circulation flow path is interposed between the bathtub body and a bath water circulation pump installed outside the bathtub body, and an air intake section connected to the flow path is provided. In a bubble-generating bathtub that is configured to be able to eject air-filled bathwater from multiple jetting nozzles installed in the bathtub body while inhaling air, sensors are installed at predetermined locations to detect bathwater conditions such as water temperature and water pressure. The sensor is arranged so that a plurality of data signals obtained by the sensor can be output to the control unit to control the operation of various devices, and among the data signals obtained by the sensor, four
Data signal processing control for various detection sensors in a bubble-generating bathtub, which controls to discard the maximum value and minimum value data signals of the times and adopt the average value of the two intermediate data signals.