Air flow bath system

Abstract

To bring a user's mind and body into a "well-ordered" state even in an environment in which the user cannot take an ambient air bath.SOLUTION: An air flow bath system 30 includes a blower 33, a heart rate sensor 34, and a control device 32. The heart rate sensor 34 acquires a heart rate of a user 100. The control device 32 calculates a heart rate stable state calculation value on the basis of the heart rate, and when the heart rate stable state calculation value falls below a threshold, reduces an air quantity of the blower 33.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an air flow bathing system for use in saunas and the like. [Background technology]

[0002] It is known that by repeating the cycle of sauna, cold bath, and outdoor bathing several times, one can achieve a state of mind and body balance (hereinafter referred to as "balance") (see, for example, Patent Document 1). In particular, it has been discovered that outdoor bathing contributes greatly to "balance." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 06-125964 Summary of the Invention [Problem to be solved by the invention]

[0004] Since the ease with which people achieve this state of "balance" varies from person to person, it is necessary to provide outdoor air bathing that is tailored to each individual. However, the outdoor air bathing of a normal sauna cannot provide the wind that is tailored to each person's condition, which means that the effects of outdoor air bathing are not fully realized. [Means for solving the problem]

[0005] In order to achieve this objective, one embodiment of the air flow bath system of the present invention is characterized by providing an air flow bath system that measures a person's heart rate and controls the air flow in accordance with the person's condition, thereby achieving the desired objective. Effect of the Invention

[0006] According to the present invention, a person's mind and body can be brought into a state that is easy to regulate. [Brief description of the drawings]

[0007] [Figure 1] A diagram showing the structure of a sauna device having an air current bathing system according to the present invention. [Diagram 2] Diagram of the airflow bath system [Diagram 3] Block diagram of the airflow bath system [Figure 4] Flowchart diagram of the airflow bath system according to the first embodiment of the present invention. [Diagram 5] Flowchart [Figure 6] Flowchart [Figure 7] Flowchart diagram of the airflow bath system according to the second embodiment of the present invention. [Figure 8] Flowchart [Figure 9] Flowchart [Figure 10] Typical heart rate waveform [Figure 11] Conceptual diagram of how autonomic nervous index (LF / HF) is calculated from frequency analysis of heart rate waveform [Figure 12] Flowchart diagram of the airflow bath system according to the third embodiment of the present invention. [Figure 13] Flowchart [Figure 14] Flowchart [Figure 15] A graph showing the change over time in average heart rate Havg(n) and air volume Y [Figure 16] A graph showing the relationship between average heart rate Havg(n) and air volume Y DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0009] (Embodiment 1) 1 is a configuration diagram of a sauna apparatus 1 having an air current bathing system 30 according to this embodiment. As shown in FIG. 1, the sauna apparatus 1 includes a sauna room 10, a cold water supply unit 20, and an air current bathing system 30.

[0010] The user 100 moves between the sauna room 10, the cold water supply unit 20, and the air flow bath system 30 in the flow indicated by the dotted arrows.

[0011] 2 is a configuration diagram of an air flow bath system 30 according to this embodiment. The air flow bath system 30 is a system including at least a control device 32, a blower 33, and a heart rate sensor .

[0012] In FIG. 2, the air flow bath system 30 includes a temperature control device 31, a control device 32, a blower 33, a heart rate sensor 34, a notification device 35, a temperature sensor 36, a humidity control device 37, and a chair 38.

[0013] The user 100 moves between the outside and inside of the air bath system 30 through a door 41 .

[0014] The control device 32 includes an airflow control unit 32a, a temperature control unit 32b, a date and time measurement unit 32c, and a threshold control unit 32d.

[0015] FIG. 3 is a block diagram of an air flow bath system 30 according to the present embodiment.

[0016] The heart rate sensor 34 measures the heart rate of the user 100 and sends the heart rate information to the threshold control unit 32d. The heart rate sensor 34 is a sensor that uses millimeter waves to measure the heart rate in a non-contact manner, but is not limited to this and may be a wristwatch-type or sheet-type contact-type heart rate sensor. In the case of a wearable type such as a wristwatch-type, the heart rate sensor 34, the control device 32, and the notification device 35 may be configured to be included in one device.

[0017] The date and time measuring unit 32c measures date and time information and sends the date and time information to the temperature control unit 32b and the threshold control unit 32d. The date and time information includes information on the date and time.

[0018] The threshold control unit 32d calculates a stable heart rate calculated value, which will be described later, from the heart rate information obtained from the heart rate sensor 34. When the stable heart rate calculated value falls below a threshold, the threshold control unit 32d sends an instruction to the notification device 35 and / or the airflow control unit 32a.

[0019] The notification device 35 notifies the user 100 to urge him / her to move in response to an instruction from the threshold control unit 32d. The notification device 35 urges the user 100 to move from the air current bathing system 30 to the sauna room 10. The notification device 35 has a display and visually urges the user 100 to move by using characters or pictures on the display, but is not limited to this. It is not necessary to have a display, and notification may be by sound, light, or vibration.

[0020] Airflow control unit 32a sends airflow control information to blower 33 in response to an instruction from threshold control unit 32d. The airflow control information is a value obtained by reducing the air volume by a % from the initial value, but is not limited to this, and may be a value obtained by increasing the air volume from the initial value. Here, a is an arbitrary value from 0 to 99.

[0021] The blower 33 blows air so as to achieve an airflow amount according to the airflow control information. The blower 33 is a blower having a plurality of airflow blowing nozzles. The blower 33 does not have an exposed propeller, but may be a propeller-type blower with an exposed propeller, and is not limited thereto.

[0022] The temperature sensor 36 measures the temperature in the air bath system 30 and sends the temperature information to the temperature control unit 32b. The temperature sensor 36 is installed on a wall surface in the air bath system 30, but may be built into the control device 32.

[0023] The temperature control unit 32b generates temperature control instruction information based on the temperature information obtained from the temperature sensor 36 and the date and time information obtained from the date and time measurement unit 32c. The temperature control unit 32b sends the temperature control instruction information to the temperature adjustment device 31. The target temperature Tp in the temperature control information is determined by the date and time information obtained from the date and time measurement unit 32c. For example, the target temperature Tp in the summer season such as July to September is set to T1 (for example, 24 to 30°C, preferably 26 to 28°C) which is higher than the reference temperature T0 (for example, 22 to 28°C, preferably 24 to 26°C). The target temperature Tp in the winter season such as December to February is set to T2 (for example, 18 to 24°C, preferably 22 to 24°C) which is lower than the reference temperature T0. The target temperature Tp in other seasons is set to the reference temperature T0.

[0024] The temperature control device 31 adjusts the temperature in the room to a temperature according to the temperature control instruction information. The temperature control device 31 is an air conditioner that blows hot air and cold air, but is not limited to this. The temperature control device 31 may be a radiant heater or the like.

[0025] 4, 5 and 6 are flow charts of the air flow bath system 30 of the embodiment 1. The flow chart of FIG.

[0026] The date and time measurement unit 32c acquires the current date and time (step S101).

[0027] The threshold control unit 32d determines a threshold Hthr for the stable heart rate calculation value based on the current date and time obtained from the date and time measurement unit 32c (step S102).

[0028] The temperature control unit 32b determines the target temperature setting Tp and the allowable temperature deviation Tq from the current date and time (step S103). Here, Tp is, for example, 22 to 28°C, and preferably 24 to 26°C. Tq is, for example, 1 to 4°C, and preferably 1 to 2°C.

[0029] The temperature sensor 36 acquires the current temperature T (step S104).

[0030] It is checked whether the current temperature T is Tp-Tq≦T≦Tp+Tq, and if so, the process proceeds to step S106, and if not, the process proceeds to step S104 (step S105).

[0031] Based on information on whether the heart rate sensor 34 can detect the heart rate of the user 100, the control device 32 judges whether the user 100 is within the range of the air flow bath system 30. If it is judged that the user 100 is within the range of the air flow bath system 30, the process proceeds to step S107 (A in FIG. 5), and if it is judged that the user is not within the range of the air flow bath system 30, the process proceeds to step S104 (step S106).

[0032] The heart rate sensor 34 detects the heart rate of the user 100 and calculates the average heart rate over the time ta (step S107). Here, ta is, for example, 30 to 120 seconds, or 60 seconds.

[0033] The heart rate sensor 34 periodically acquires the average heart rate over ta. For example, the heart rate sensor 34 acquires the average heart rate over ta every minute.

[0034] The control device 32 calculates a heart rate stability state calculation value based on the acquired average heart rate.

[0035] Assuming that the average heart rate acquired at the nth time is Havg(n), the heart rate stability state calculation value is |Havg(n) - Havg(n - 1)| (step S108). That is, the heart rate stability state calculation value is the absolute value of the difference in the average heart rate. n is an arbitrary natural number.

[0036] The control device 32 determines whether or not the state where the heart rate stability state calculation value |Havg(n) - Havg(n - 1)| is less than a predetermined heart rate fluctuation threshold value Hthr has continued for the time tb (step S109). Here, tb is, for example, 60 to 600 seconds, or 300 seconds.

[0037] The heart rate fluctuation threshold value Hthr is changed according to the date and time information of the date and time measurement unit 32c. For example, the heart rate fluctuation threshold value Hthr during the summer period from July to September is set to the summer heart rate fluctuation threshold value Hthr1, and the summer heart rate fluctuation threshold value Hthr1 is set such that Hthr0 > Hthr1. Also, the heart rate fluctuation threshold value Hthr during the winter period from December to February is set to the winter heart rate fluctuation threshold value Hthr2, and the winter heart rate fluctuation threshold value Hthr2 is set such that Hthr0 < Hthr2. The heart rate fluctuation threshold value Hthr during other periods is set according to the reference heart rate fluctuation threshold value Hthr0. That is, the heart rate fluctuation threshold value Hthr is made lower than the reference value in summer and higher than the reference value in winter.

[0038] If the stable heart rate calculated value |Havg(n)-Havg(n-1)| has remained below the heart rate variability threshold Hthr for the time tb, the process proceeds to step S110; otherwise, the process proceeds to step S108 (step S109).

[0039] Airflow control unit 32a controls blower 33 to reduce the air volume to a % (for example, 30 to 70%, or 50%) (step S110).

[0040] After airflow control section 32a reduces the air volume of blower 33 to a%, control device 32 judges whether or not time tc (for example, 30 to 120 seconds, or 60 seconds) has elapsed. If time tc has elapsed, the process proceeds to step S112 (B in FIG. 6), and if time tc has not elapsed, the process proceeds to step S110 (step S111).

[0041] The notification device 35 notifies the user 100 of the suggestion to move to the sauna room 10 (step S112).

[0042] Based on information on whether the heart rate sensor 34 can detect the heart rate of the user 100, the control device 32 judges whether the user 100 is within the range of the air flow bath system 30. If it is judged that the user 100 is within the air flow bath system 30, the process proceeds to step S112, and if it is judged that the user is not within the air flow bath system 30, the process ends (step S113). (Embodiment 2) Figures 7, 8 and 9 are flow charts of the air flow bath system 30 of embodiment 2. In this embodiment, the same components as those in embodiment 1 (Figures 1 to 6) are given the same reference numerals and detailed description thereof will be omitted.

[0043] The flow chart of FIG. 7 begins when the user 100 enters the air bath system 30.

[0044] The date and time measurement unit 32c acquires the current date and time (step S201).

[0045] The threshold control unit 32d determines a threshold Nthr for the stable heart rate calculation value from the current date and time (step S202).

[0046] The temperature control unit 32b determines the target set temperature Tp and the allowable temperature deviation Tq from the current date and time (step S203).

[0047] The temperature sensor 36 acquires the current temperature T (step S204).

[0048] It is checked whether the current temperature T is Tp-Tq≦T≦Tp+Tq, and if so, the process proceeds to step S206, and if not, the process proceeds to step S204 (step S205).

[0049] Based on the information as to whether the heart rate sensor 34 can detect the heart rate of the user 100, the control device 32 judges whether the user 100 is in the air flow bath system 30 or not. If it is judged that the user 100 is in the air flow bath system 30, the process proceeds to step S207 (A' in FIG. 8), and if it is judged that the user is not in the air flow bath system 30, the process proceeds to step S204 (step S206).

[0050] The heartbeat sensor 34 acquires the heartbeat of the user 100 during the nth time ta. This heartbeat has a heartbeat waveform as shown in the typical heartbeat waveform diagram of Fig. 10. The threshold control unit 32d calculates the beat interval RRI from this heartbeat waveform. The threshold control unit 32d converts this beat interval RRI into a frequency spectrum to calculate a power spectrum.

[0051] Furthermore, the threshold control unit 32d calculates a high frequency (HF) and a low frequency (LF) based on this power spectrum.

[0052] Specifically, as shown in Fig. 11, HF is obtained by integrating the high-frequency components between frequencies F2 and F3 of the power spectrum, and LF is obtained by integrating the low-frequency components between frequencies F1 and F2 of the power spectrum.

[0053] Furthermore, the threshold control unit 32d calculates the autonomic nerve index LF / HF (step S207).

[0054] In FIG. 11, F1 is 0.04 Hz, F2 is 0.15 Hz, and F3 is 0.40 Hz, but it is not limited thereto.

[0055] The threshold control unit 32d calculates the autonomic nerve index LF(n) / HF(n) during the n-th ta, and calculates a heart rate stability state calculation value. The heart rate stability state calculation value is calculated by |LF(n) / HF(n) - LF(n - 1) / HF(n - 1)| (step S208). That is, the heart rate stability state calculation value is the absolute value of the difference in the autonomic nerve index LF / HF.

[0056] The control device 32 determines whether or not the heart rate stability state calculation value |LF(n) / HF(n) - LF(n - 1) / HF(n - 1)| has continued for a time tb in a state where it is less than the autonomic nerve index fluctuation threshold Nthr (step S209).

[0057] The autonomic nerve index fluctuation threshold Nthr is changed according to the date and time information of the date and time measurement unit 32c. For example, the autonomic nerve index fluctuation threshold Nthr during the summer period from July to September is set to the summer autonomic nerve index fluctuation threshold Nthr1, and the summer autonomic nerve index fluctuation threshold Nthr1 is set such that Nthr0 > Nthr1. Also, the autonomic nerve index fluctuation threshold Nthr during the winter period from December to February is set to the winter autonomic nerve index fluctuation threshold Nthr2, and the winter autonomic nerve index fluctuation threshold Nthr2 is set such that Nthr0 < Nthr2. The autonomic nerve index fluctuation threshold Nthr for other periods is set according to the reference autonomic nerve index fluctuation threshold Nthr0. That is, the autonomic nerve index fluctuation threshold Nthr is set lower than the reference value in summer and higher than the reference value in winter. 。

[0058] If the heart rate stability state calculation value |LF(n) / HF(n) - LF(n - 1) / HF(n - 1)| has continued for a time tb in a state where it is less than the autonomic nerve index fluctuation threshold Nthr, the process proceeds to step S210, and if it has not continued, the process proceeds to step S208 (step S209).

[0059] Airflow control unit 32a controls blower 33 to reduce the air volume to a % (step S210).

[0060] After airflow control section 32a reduces the air volume of blower 33 to a%, control device 32 judges whether or not time tc has elapsed. If time tc has elapsed, the process proceeds to step S212 (B' in FIG. 9), and if time tc has not elapsed, the process proceeds to step S210 (step S211).

[0061] The notification device 35 notifies the user 100 of the suggestion to move to the sauna room 10 (step S212).

[0062] Based on information on whether the heart rate sensor 34 can detect the heart rate of the user 100, the control device 32 judges whether the user 100 is inside the air flow bath system 30 or not. If it is judged that the user 100 is inside the air flow bath system 30, the process proceeds to step S212, and if it is judged that the user is not inside the air flow bath system 30, the process ends (step S213). (Embodiment 3) Figures 12, 13 and 14 are flow charts of the air flow bath system 30 of embodiment 3. In this embodiment, the same components as those in embodiments 1 and 2 (Figures 1 to 11) are given the same reference numerals and detailed descriptions thereof will be omitted.

[0063] The flowchart in FIG. 12 starts at the point where the process moves to S108 in the flowchart in FIG.

[0064] The control device 32 determines whether or not the normal average heart rate H0, which was acquired before the user 100 entered the sauna room 10, has been input to the control device 32. If the normal average heart rate H0 has not been input to the control device 32, the process proceeds to step S108b, and if the normal average heart rate H0 has already been input to the control device 32, the process proceeds to step S108c.

[0065] The normal average heart rate H0 is the normal average heart rate of the user 100 acquired in advance before the user 100 enters the sauna room 10. H0 may be a value acquired and calculated by the heart rate sensor 34. However, H0 does not necessarily have to be a value acquired and calculated by the heart rate sensor 34, and may be a value self-reported by the user 100 (step S108a).

[0066] The normal average heart rate H0 is input to the control device 32 (step S108b). This may be input automatically by the control device 32, or may be input manually by the user 100.

[0067] The control device 32 determines whether the difference between the average heart rate H1 (Havg(1)) calculated initially in step S107 and the normal average heart rate H0 is equal to or greater than a threshold value. If equal to or greater than the threshold value, the process proceeds to S108d.

[0068] If the difference is less than the threshold, the process proceeds to step S108j(D). If the difference between H1 and the normal average heart rate H0 does not reach the threshold, the control device 32 determines that there is no change in the average heart rate and does not control the airflow according to the average heart rate. The threshold (average heart rate difference) of the difference between the average heart rate H1 and the normal average heart rate H0 is, for example, 20 bpm, but is not limited to this (step S108c).

[0069] The heart rate sensor 34 acquires the heart rate of the user 100, and periodically calculates the average heart rate Havg(n) during the period ta (step S108d).

[0070] The control device 32 determines the current air volume Y of the blower 33 according to the value of the average heart rate Havg(n). Then, the process proceeds to step S108f(C). Here, the air volume Y is changed between the maximum air volume Y1 and the lower limit air volume 0.25Y1 according to the average heart rate Havg(n) of the user 100 from the time of entering the air flow bathroom, as shown in Fig. 15. At this time, the lower limit air volume is set to, for example, 25% of the maximum air volume Y1 set to 100%, but is not limited to this, and the lower limit air volume may be set to a value larger than 25% of Y1 (step S108e).

[0071] Here, Fig. 16 is a diagram showing the relationship between the average heart rate Havg(n) and the air volume Y. The relationship between the average heart rate Havg(n) and the air volume Y in Fig. 16 is the same as Fig. 15. The control device 32 controls the blower 33 according to the average heart rate Havg(n) so that the air volume Y falls within the shaded area Z. In this case, the lower limit of the average heart rate in the air volume control range is set to, for example, 50% when the initial average heart rate H1 is 100%, but is not limited to this.

[0072] In FIG. 16, a shaded area Z is an area that satisfies all of formulas 1, 2, 3, and 4, which will be described later.

[0073] 13, the control device 32 judges whether or not the formula 1: Y≧{Y1 / (H1−H0)}·{0.75·Havg(n)+0.25H1−H0} is satisfied. If it is satisfied, the process proceeds to step S108g. If it is not satisfied, the process proceeds to step S108j(D) (step S108f).

[0074] The control device 32 determines whether or not the formula 2: Y≦{Y1 / (H1−H0)}·{0.75·Havg(n)+0.25H1−0.625H0} is satisfied. If it is satisfied, the process proceeds to step S108h. If it is not satisfied, the process proceeds to step S108k(E) (step S108g).

[0075] The control device 32 judges whether or not the formula 3: Y≦Y1 is satisfied. If it is satisfied, the process proceeds to step S108i. If it is not satisfied, the process proceeds to step S108j(D) (step S108h).

[0076] The control device 32 judges whether or not the formula 4: Y≧0.25Y1 is satisfied. If it is satisfied, the process proceeds to step S108l(F). If it is not satisfied, the process proceeds to step S108k(E) (step S108i).

[0077] 14, step S108j is a step in which the control device 32 sets the air volume Y to, for example, the maximum air volume Y1 if the air volume Y does not fall within the shaded area Z. However, since it is only necessary that the air volume Y falls within the shaded area Z, the air volume Y may be set to a value other than the maximum air volume Y1. In particular, if setting the air volume Y to the maximum air volume Y1 would result in the air volume not falling within the shaded area Z, the control device 32 may set the air volume Y to a value other than the maximum air volume Y1 so that the air volume falls within the shaded area Z.

[0078] Step S108k is a step in which the control device 32 sets the air volume Y to, for example, a lower air volume limit of 0.25Y1 when the air volume Y does not fall within the shaded area Z. However, since it is sufficient that the air volume Y falls within the shaded area Z, the air volume Y may be set to a value other than the lower air volume limit of 0.25Y1. In particular, when the air volume Y does not fall within the shaded area Z when the air volume Y is set to the lower air volume limit of 0.25Y1, the control device 32 may set the air volume Y to a value other than the lower air volume limit of 0.25Y1 so that the air volume Y falls within the shaded area Z.

[0079] Then, airflow control unit 32a controls blower 33 to achieve set air volume Y. Blower 33 blows air to user 100 at a volume according to average heart rate Havg(n) (step S108l).

[0080] The control device 32 calculates a stable heart rate calculation value based on the acquired average heart rate Havg(n). Then, the process proceeds to step S109 in Fig. 4. If the average heart rate acquired the nth time is Havg(n), the stable heart rate calculation value is |Havg(n)-Havg(n-1)| (step S108m). After moving to S109, if the stable heart rate calculated value |Havg(n)-Havg(n-1)| has not remained below the heart rate variability threshold Hthr for the time tb, the process moves to step S108 again. When moving to S108 again, the normal heart rate H0 has already been input to the control device 32 in S108a, so the process moves to step S108c. After proceeding to step S108c, the flow proceeds in the same manner as the first time, changing the air volume Y according to the reacquired average heart rate Havg(n) and controlling the air volume according to the average heart rate Havg(n). This step S108 (steps 108a to 108m) is repeated until the stable heart rate calculated value |Havg(n)-Havg(n-1)| remains below the heart rate variability threshold Hthr for time tb (transition from S109 to S110).

[0081] In the third embodiment, the process has been described in terms of the case where the process has proceeded to S108 in the flowchart of FIG. 4, but the process can also be similarly applied to the case where the process has proceeded to S208 in the flowchart of FIG.

[0082] The following provides additional information regarding each embodiment.

[0083] An air flow bath system 30 according to one embodiment of the present invention comprises a blower 33, a heart rate sensor 34, and a control device 32. The heart rate sensor 34 acquires the heart rate of the user 100. The control device 32 calculates a stable heart rate calculation value based on the heart rate, and reduces the air volume of the blower 33 when the stable heart rate calculation value falls below a threshold value.

[0084] According to this configuration, the airflow bath is adapted to the condition of each user, which has the effect of making it easier for the mind and body to be "balanced" regardless of the person.

[0085] Furthermore, the heart rate sensor 34 may acquire an average heart rate from the heart rate, and if the average heart rate acquired the nth time is Havg(n), then the calculated stable heart rate value is |Havg(n)-Havg(n-1)|, and the control device 32 may be configured to reduce the airflow of the blower 33 when |Havg(n)-Havg(n-1)| falls below the threshold value Hthr.

[0086] According to this configuration, the airflow bath is adjusted to match the heart rate of each user, which has the effect of making it easier for the mind and body to be in a "balanced" state regardless of the person.

[0087] The control device 32 also obtains HF (High Frequency) and LF (Low Frequency) obtained by integrating the high frequency components of the power spectrum obtained by performing a step of frequency spectrum conversion of the heartbeat interval. The HF and LF obtained at the nth time are designated as HF(n) and LF, respectively. (n), the calculated stable heart rate value is |LF(n) / HF(n)-LF(n-1) / HF(n-1)|, and the control device 32 may be configured to reduce the airflow of the blower 33 when |LF(n) / HF(n)-LF(n-1) / HF(n-1)| falls below a threshold value Nthr.

[0088] According to this configuration, the airflow bath is tailored to the autonomic nervous system of each user, which has the effect of making it easier for the mind and body to be "balanced" regardless of the person.

[0089] Also, a notification device 35 may be provided, and the control device 32 may be configured to control the notification device 35 to issue a notification urging the user 100 to move after a predetermined time has elapsed since the air volume of the blower 33 was reduced.

[0090] With this configuration, the user is notified of the completion of a milestone in the series of steps toward a state of "balance" and is prompted to move on to the next step, thereby making it easier for the mind and body to reach a "balance" state efficiently.

[0091] The control device 32 may also include a threshold control unit 32d, which may be configured to obtain the current date and time and change the threshold value depending on the date and time.

[0092] According to this configuration, the influence of the surrounding environment due to the time and date can be reduced, which has the effect of making it easier to achieve a "ready" state regardless of the time and date.

[0093] Moreover, the heart rate sensor 34, the control device 32, and the notification device 35 may be integrated into one device.

[0094] This configuration has the advantage that the user can use part of the air flow bath system as a wearable terminal.

[0095] In addition, the heart rate sensor 34 acquires an average heart rate from the heart rate. Let Havg(n) be the average heart rate acquired the nth time, H0 be the average heart rate of the user 100 under normal circumstances, H1 be Havg(1), Y be the current air volume of the blower 33, and Y1 be the maximum air volume of the blower 33. Before "reducing the air volume of the blower 33 when the calculated heart rate stable state value falls below the threshold value (S109, S110)", the control device 32 Formula 1: Y≧{Y1 / (H1-H0)} {0.75 Havg(n)+0.25H1-H0} Equation 2: Y≦{Y1 / (H1-H0)} {0.75 Havg(n)+ 0.25H1-0.625H0} Formula 3: Y≦Y1 Formula 4: Y≧0.25Y1 The air volume Y of the blower 33 may be controlled so as to satisfy all of the formulas 1 to 4.

[0096] According to this configuration, the air volume of the blower 33 can be precisely controlled in accordance with the heart rate of the user 100, so that the user 100 can be brought into a state where the mind and body are more easily balanced.

[0097] Also, although a chair 38 is provided as a place for the user 100 to rest, it may be replaced by a bed on which the user can lie down.

[0098] The airflow bath system 30 may also be an airflow bathroom system that constitutes a room.

[0099] Based on the information from the heart rate sensor 34, the control device 32 judges whether the user 100 is within the range of the air flow bathing system 30, but this is not limited to the above. A human presence sensor or a position information sensor may be provided separately so that the control device 32 can judge whether the user 100 is within the range of the air flow bathing system 30. In the case of a wearable type, the heart rate sensor 34, control device 32, notification device 35, and position information sensor may be included in one device.

[0100] The airflow bathing system according to the present invention has been described above based on the embodiment, but the present invention is not limited to the embodiment. As long as it does not deviate from the spirit of the present invention, various modifications conceivable by those skilled in the art to the present embodiment and configurations constructed by combining components of different embodiments are also included within the scope of the present invention. [Industrial Applicability]

[0101] The air flow bathing system of the present invention makes it possible for anyone to easily achieve a state of mind and body "in balance" even in environments where outdoor air bathing is not possible, and is therefore useful as an air flow bathing room for use in saunas, etc. [Explanation of symbols]

[0102] 1. Sauna equipment 10 Sauna Room 20 Chilled water supply unit 30 Airflow Bath System 31 Temperature control device 32 Control device 32a Airflow control section 32b Temperature control unit 32c Date and time measurement section 32d Threshold control section 33 Blower 34 Heart Rate Sensor 35 Notification device 36 Temperature Sensor 37 Humidity Control Device 38 chairs 41 doors 100 users Z Field

Claims

1. An airflow bath system comprising a blower, a heart rate sensor, and a control device, The heart rate sensor acquires the heart rate of the user, The control device calculates a stable heart rate calculation value based on the heart rate, and reduces the air volume of the blower when the stable heart rate calculation value falls below a threshold value.

2. The heart rate sensor obtains an average heart rate from the heart rate; Let Havg(n) be the average heart rate obtained at the nth time. the calculated heart rate stability value is |Havg(n)-Havg(n-1)|, 2. The airflow bath system according to claim 1, wherein the control device reduces the air volume of the blower when |Havg(n) - Havg(n-1)| falls below a threshold value Hthr.

3. The control device obtains HF and LF from the heart rate; Let HF and LF obtained at the nth time be HF(n) and LF(n), respectively. the calculated stable heart rate value is |LF(n) / HF(n)-LF(n-1) / HF(n-1)|, The airflow bath system of claim 1, characterized in that the control device reduces the air volume of the blower when |LF(n) / HF(n)-LF(n-1) / HF(n-1)| falls below a threshold value Nthr.

4. Equipped with a notification device, The airflow bath system according to claim 1, characterized in that the control device controls the notification device to issue a notification urging the user to move after a predetermined time has elapsed since the air volume of the blower was reduced.

5. The control device includes a threshold control unit, The airflow bath system according to claim 1, characterized in that the threshold control unit obtains a current date and time and changes the threshold value in accordance with the date and time.

6. 6. The airflow bath system according to claim 1, wherein the heart rate sensor, the control device, and the notification device are integrated together.

7. The heart rate sensor obtains an average heart rate from the heart rate; The average heart rate obtained at the nth time is denoted by Havg(n), H0 is the user's average normal heart rate, Let H1 be Havg(1), Let Y be the current air volume of the blower, If Y1 is the maximum air volume of the blower, Before the control device "reduces the air volume of the blower when the heart rate stable state calculation value falls below a threshold value," Formula 1: Y≧{Y1 / (H1-H0)}・{0.75・Havg(n)+0.25H1-H0} Formula 2: Y≦{Y1 / (H1-H0)}・{0.75・Havg(n)+0.25H1-0.625H0} Formula 3: Y≦Y1 Formula 4: Y≧0.25Y1 2. The airflow bath system according to claim 1, wherein the air volume Y of the blower is controlled so as to satisfy all of the formulas 1 to 4.

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