JP2010029506A - Massager - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massager providing effective massage in a period shorter than a conventional massager. <P>SOLUTION: The massager includes: a biological information acquisition section 2 which acquires biological information on a person to be massaged; and a control circuit 3 which control massaging operation on the basis of the biological information acquired by the biological information acquisition section 2. The biological information acquisition section 2 includes an EDA (Electrodermal Activity) sensor 22 for detecting the EDA of the person to be massaged. The control circuit 3 estimates a plurality of psychological conditions including relax, neutral, feeling of stiffness at a point, feeling of stiffness in an area, and a pain on the basis of an EDA determination value expressing the time variation of the EDA detected by the EDA sensor 22 and an EDR (Electrodermal Response) determination value expressing the amplitude value of the EDA included in the EDA, and adjusts the massaging operation according to the result of the estimation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a massage machine capable of adjusting a massage operation according to a psychological state of a user.

Conventionally, in this type of massage machine, there is known a massage machine that controls a massage operation based on biological information such as a heart rate, a respiratory rate, and skin temperature of a user (see Patent Document 1).
Moreover, it is possible to employ | adopt the electrodermal activity detected by the electrodermal activity sensor as biometric information.

FIG. 15 shows the operation of the massage machine that controls the massage operation based on the biological information detected by the biological information sensor.
First, in step S31, when a user selects a desired operation mode from a plurality of operation modes such as a stiffness improvement mode, a refresh mode, and a relaxation mode, initialization for executing the operation mode is performed.

Next, in step S32, the body shape of the user is measured by moving the kneading balls up and down to detect the shoulder position and the acupoint (diameter hole) position, and then the preliminary massage and the main massage are repeatedly performed.
In the preliminary massage, a plurality of body parts occupying a relatively wide area such as “neck / shoulder”, “back”, “waist” and “leg / foot” are targeted for the whole body part. Gives massage stimulation by fir action.
On the other hand, in this massage, according to the estimation result of the psychological state for every body part in preliminary massage, the massage operation corresponding to the operation mode selected first is implemented for every body part.

  After starting the first preliminary massage for one body part in step S33 of FIG. 15, in step S34, biological information (skin temperature, electrical skin activity, and pulse) is acquired from the biological information sensor. Here, for electrodermal activity (EDA), the least squares method is applied to the measured value of EDA obtained during the estimation period to obtain the amount of change (ΔV / s) of EDA within the estimation period.

  In step S35, four psychological states of relaxation, neutral, refresh, and pain are estimated for one body part based on the acquired biological information. Here, “relax” refers to a state in which the activity of the autonomic nervous system decreases (sedation), and “refresh” refers to a state in which the activity of the autonomic nervous system increases (wakes up). The term “autonomous nervous system activity” refers to a state in which neither the rising direction nor the decreasing direction is directed. And the refresh reaction by a massage stimulus is called a feeling of stiffness. Pain refers to an extremely strong refresh reaction and is detected separately from refresh.

  For example, as shown in FIG. 17, when the amount of change in EDA decreases, the psychological state can be estimated as relaxed, and when the amount of change in EDA increases, the psychological state can be estimated as a sense of stiffness (refresh). When the amount of change in EDA increases significantly, it can be estimated that the psychological state is painful.

  When the preliminary massage for one part is completed in step S36 in FIG. 15, the same preliminary massage (steps S33 to S36) is repeated for the remaining parts, and then the first main massage is performed.

In this massage, first, in step S37, the estimation result of the psychological state estimated for each body part is acquired, and according to the estimation result, the massage operation corresponding to the operation mode selected first for each body part. To decide.
In step S38, the main massage is started. In the stiffness improvement mode and the refresh mode, massage is focused on the portion estimated to have a sense of stiffness (refresh). In the relax mode, massage is focused on the site estimated to be relaxed. The massage operation is performed by a combination of fir, tapping and tapping, and the adjustment of the massage operation is performed by a combination of adjustments such as speed, time, number of times, and strength.

  When the first main massage is completed in step S39, the process proceeds to the second preliminary massage shown in FIG. 16, and then the preliminary massage and the main massage are repeatedly performed for each acupoint position.

In step S40, the second preliminary massage is started. In the preliminary massage, a local scrubbing operation is performed on the acupoint position detected by body shape measurement, and massage stimulation is applied to the acupoint position. In step S41, EDA is acquired, and the amount of change in EDA within the estimation period is obtained using the least square method.
In step S42, four psychological states of relaxation, neutral, refresh, and pain are estimated for one acupoint position that has been subjected to the preliminary massage, and then the second preliminary massage is terminated in step S43.

Thereafter, in the second main massage, first, in step S44, an estimation result of the psychological state about the acupoint position estimated by the second preliminary massage is acquired, and in step S45, according to the estimation result. The massage operation by the acupressure operation is started for the acupoint position.
When the second main massage is completed in step S46, the preliminary massage and the main massage similar to the second preliminary massage and the main massage described above are sequentially repeated for the other acupoint positions. Pre-massage and full massage for all points are performed. As a result, for example, when there are 15 points, the preliminary massage and the main massage in steps S40 to S46 are repeated 15 times.
Finally, in step S47, a final massage is performed on the whole body, and all massage operations are completed.

According to the massage described above, the massage operation is adjusted based on the biological information of the user, so that effective massage according to the psychological state of the user is realized.
JP 2004-173873 A

  However, in the massage machine described above, the first preliminary massage shown in FIG. 15 occupies a relatively large area such as “neck / shoulder”, “back”, “waist” and “leg / foot”. After estimating the psychological state of each body part by giving massage stimulation to the whole body part for the body part, the second preliminary massage shown in FIG. 16 is repeated for all the acupoint positions. Since the psychological state for each acupoint position is estimated, the number of preliminary massages is increased to estimate the psychological state for all acupoint positions, and all massages including this massage are performed. There was a problem of long time.

  An object of the present invention is to provide a massage machine that can perform an effective massage in a shorter time than before.

  Therefore, in the present invention, the electrodermal activity EDA caused by the massage stimulus is a gradual level change reflecting the degree of refresh or relaxation and a transient reaction caused by a relatively strong massage stimulus such as acupressure. Focusing on the fact that an electrodermal response (EDR) is included, EDR was detected as an AC component of EDA detected by an electrodermal activity sensor.

  In addition, EDR changes obtained by applying massage stimulation to a body part occupying a relatively large area such as the conventional “neck / shoulder”, “back”, “waist”, and “leg / foot” include EDR. Therefore, EDA detected by the electrodermal activity sensor is a mixture of gentle level fluctuations and AC components. The psychological state estimated from such EDA is “neck / shoulder”. , Whether it is a refreshing reaction (hereinafter referred to as area stiffness) caused by applying a massage stimulus to a wide body part such as "back", "waist" and "leg / foot" Since it was not possible to clearly distinguish whether it was a refresh reaction (hereinafter referred to as point stiffness) caused by applying massage stimulation to a local body part, in the present invention, EDA and By using both EDRs, the area feeling and the point feeling were distinguished and estimated.

The massage machine according to the present invention includes a biological information acquisition unit that acquires biological information of a user and a control circuit that controls a massage operation based on the biological information acquired by the biological information acquisition unit.
The biological information acquisition unit includes an EDA sensor that detects EDA of the user.
The control circuit, based on an EDA determination value that represents the amount of time change of EDA detected by the EDA sensor and an EDR determination value that represents an amplitude value of EDR that is an AC component of the EDA, As the psychological state of the user, relaxation, neutral, sense of stiffness of the point representing the refreshing reaction of the local body part including the acupoint position, and the refreshing reaction of the wide body part wider than the local body part A plurality of psychological states including the feeling of stiffness and pain in the area representing the condition are estimated, and the massage operation is adjusted according to the estimation result.

  In the massage machine of the present invention, the control circuit estimates a psychological state by executing a preliminary massage, and executes the subsequent main massage based on the estimation result of the psychological state.

  In a specific configuration, in the control circuit, the EDA determination value and the EDR determination value are defined as two variables, and a relationship between the values of these two variables and the plurality of psychological states is defined. Using the relationship, the psychological state of the user is determined from the EDA determination value and the EDR determination value.

  More specifically, in the relationship defined in the control circuit, the relationship of the psychological state to the EDA determination value is that the psychological state is relaxed when the EDA is less than the first threshold I smaller than 0, and the EDA determination value is the first. When the threshold value is 1 or more and less than the positive second threshold value F, the psychological state is neutral, and when the EDA determination value is equal to or more than the second threshold value F and less than the third threshold value G, the psychological state is feeling of area stiffness and the EDA determination value is It is defined that the psychological state becomes painful when the third threshold G or more.

  In the relationship defined in the control circuit, the relationship of the psychological state to the EDR determination value is that the psychological state is neutral when the EDR determination value is less than the positive first threshold B, and the EDR determination value is equal to or greater than the first threshold B. When the psychological state is less than the second threshold C, the psychological state is defined as point stiffness, and when the EDR determination value is greater than or equal to the second threshold C, the psychological state is defined as painful.

  More specifically, in the relationship defined in the control circuit, the relationship between the EDA determination value and the EDR determination value is that the EDA determination value is less than the first threshold I and the EDR determination value is the first. When the threshold value is greater than or equal to the threshold value B and less than the second threshold value C, the psychological state is both point feeling and relaxation, the EDA determination value is greater than or equal to the second threshold value F and less than the third threshold value G, and the EDR determination value is When the first threshold value B is equal to or greater than the second threshold value C and less than the second threshold value C, the psychological state is defined to be both the area feeling and the point feeling.

  In this case, in this massage, the relaxation mode in which massage is focused on the area estimated to be relaxed, the refresh mode in which massage is focused on the area estimated to be in the area, and the feeling of stiffness in the point is estimated. Stiffness improvement mode to focus massage on the selected part and stiffness improvement (refresh) mode to focus massage on the part estimated to feel point stiffness and adjust the massage action of the part estimated to be refreshed And a stiffness improvement (relaxation) mode in which massage is focused on the part estimated to be pointy and the massage operation of the part estimated to be relaxed is adjusted selectively.

  According to the massage machine according to the present invention, EDA is detected by applying massage stimulation to a wide range of body parts such as “neck / shoulder”, “back”, “waist”, and “leg / foot”. By detecting EDR, which is an alternating current component, it is possible to simultaneously detect and estimate the sense of area and the sense of point, so that effective massage can be performed in a shorter time than before.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
As shown in FIG. 1, the massage machine according to the present invention comprises a massage unit (1) and a biological information acquisition unit (2). The massage unit (1) has a remote control device (9) for remote control (remote control). ) Is connected.

  The massage unit (1) includes a kneading motor (4) for carrying out a kneading operation with a kneading ball, a tapping motor (5) for carrying out a kneading operation and a shiatsu operation with the kneading balls, and an elevating and lowering for raising and lowering the kneading balls. A motor (6) and a control circuit (3) for controlling the operation of these motors (4), (5) and (6) are provided.

  The biological information acquisition unit (2) includes a biological information sensor (8) and an information processing circuit (7), and the biological information detected by the biological information sensor (8) is supplied to the information processing circuit (7). A determination value for determining the psychological state of the user is generated, the determination value is supplied to the control circuit (3) of the massage unit (1), and the psychological state of the user is estimated. The massage operation is adjusted based on this.

  As shown in FIG. 2, the biological information sensor (8) includes an EDA sensor (22) and a high-pass filter (23) that extracts an AC component of the output signal of the EDA sensor (22). Output signal is supplied to a change amount calculation unit (24) of the information processing circuit (7), and an EDA determination value indicating the time change amount of EDA and an EDR determination indicating an amplitude value of EDR which is an AC component of the EDA. The EDA determination value and the EDR determination value are supplied to the psychological state estimation unit (31) of the control circuit (3), and the psychological state of each body part of the user is estimated.

  FIG. 3 shows an output signal of the EDA sensor (22). The output signal is generated according to a gentle level fluctuation reflecting the degree of refresh or relaxation and a relatively strong massage stimulus such as finger pressure. EDR, which is a transient reaction, is included. Therefore, by calculating the amount of change (ΔV / s) in time of the output signal of the EDA sensor (22) during the estimation period (preliminary massage execution period (for example, 15 seconds)) by the least square method or the like, refreshing and relaxing An EDA determination value corresponding to a gradual level change reflecting the degree of.

  FIG. 4 shows an AC signal obtained by passing an output signal of the EDA sensor (22) through the high pass filter (23), that is, an EDR measurement value. Therefore, by calculating the maximum amplitude value (mV) of the EDR measurement value in the estimation period (preliminary massage execution period (for example, 15 seconds)), a transient effect that occurs in response to a relatively strong massage stimulus such as acupressure An EDR judgment value corresponding to the magnitude of the reaction is obtained.

  FIG. 5A shows a change in psychological state according to a change in EDA change amount. When the EDA change amount decreases, the psychological state can be estimated as relaxed, when the EDA change amount does not change, the psychological state can be estimated as neutral, and when the EDA change amount increases, the psychological state is estimated. It can be estimated as refreshing, and when the amount of change in EDA increases significantly, it can be estimated that the psychological state is painful.

  On the other hand, in the estimation of the feeling of area stiffness, refresh (tension response corresponding to the massage stimulus) is detected as the feeling of area stiffness in the estimation of the psychological state. That is, when the EDA change amount decreases, the psychological state can be estimated to be relaxed, and when the EDA change amount increases, the psychological state can be estimated as the feeling of area stiffness, and the EDA change amount is remarkably large. When it increases, it can be estimated that the psychological state is painful. Note that neutral is not estimated only by the amount of change in EDA.

  On the other hand, FIG. 5B shows a change in the psychological state according to a change in the EDR amplitude value. The EDR amplitude value reflects the degree of refresh response (strength of the tension response) caused by applying massage stimulation to a local body part including the acupoint position. The state can be estimated as relaxed or neutral, the psychological state can be estimated as a sense of stiffness when the EDR amplitude value is large, and the psychological state can be estimated as painful when the EDR amplitude value is extremely large. I can do it. Note that the psychological state such as relaxation or refresh is not estimated only by the EDR amplitude value.

6, the EDA change amount shown in FIG. 5A is plotted on the vertical axis, the EDR amplitude value shown in FIG. 5B is plotted on the horizontal axis, and the psychological state change shown in FIG. ), The relationship between the psychological states having the EDA change amount and the EDR amplitude value as two variables is represented.
According to this relationship, it is possible to distinguish and estimate area feeling (refresh) and point feeling. It is determined that two psychological states coexist in an area where the area feeling (refreshing) and the point feeling are overlapping. Moreover, it is estimated to be neutral except for the four areas of relaxation, area feeling (refreshing), point feeling, and pain.

  FIG. 7 illustrates an example in which the area feeling of area feeling and the point feeling feeling feeling area in FIG. As a result, it is possible to determine a region that could not be conventionally determined, such as “determined that there is a sense of stiffness (relaxed)”.

  FIG. 8 shows the operation of the massage machine. First, in step S1, when a user selects a desired operation mode from a plurality of operation modes such as a stiffness improvement mode, a refresh mode, and a relaxation mode, initialization for executing the operation mode is performed.

Next, in step S2, the body shape of the user is measured by moving the kneading balls up and down to detect the shoulder position and the acupoint (diameter hole) position, and then the preliminary massage and the main massage are repeatedly performed.
In the preliminary massage, a plurality of body parts occupying a relatively wide area such as “neck / shoulder”, “back”, “waist” and “leg / foot” are targeted for the whole body part. Gives massage stimulation by fir action.
On the other hand, in this massage, according to the estimation result of the psychological state for every body part in preliminary massage, the massage operation corresponding to the operation mode selected first is implemented for every body part.

After starting preliminary massage for one body part among “neck / shoulder”, “back”, “waist” and “leg / foot” in step S3 of FIG. 8, in step S4, an EDA sensor is used as biometric information. The EDA measurement value is obtained from the EDA, and the change amount (ΔV / s) of the EDA within the estimation period is calculated by applying the least square method to the EDA measurement value obtained within the estimation period.
Also, the EDR measurement value obtained from the EDA sensor (22) through the high-pass filter (23) is acquired, and the EDR amplitude value (mV) obtained within the estimation period is calculated.
In step S5, the psychological state of the body part is estimated based on the calculated amount of change in EDA (ΔV / s) and the amplitude value (mV) of EDR. In step S6, a preliminary massage is performed on the part. Exit.

  In the estimation of the psychological state based on the amount of change of EDA and the amplitude value of EDR, as shown in FIG. 6, a relationship representing a plurality of psychological states is used with the amount of change of EDA and the amplitude value of EDR as two variables. Specifically, as shown in FIGS. 11 and 12, for the EDA change amount (ΔV / s), five threshold values (−J, −I, + F, + G, and + H) are defined, and the EDR amplitude is changed. For the value (V), five threshold values (−E, + A, + B, + C, and + D) are defined, and the calculated EDA change amount (ΔV / s) and the EDR amplitude value (V) are set as the respective threshold values. By comparing, it is determined which psychological state it corresponds to.

Here, when the EDA change amount is greater than or equal to the threshold −J and less than the threshold −I, and the EDR amplitude value is greater than or equal to the threshold + B and less than the threshold C, the psychological state is determined as both feeling of point stiffness and relaxation.
Further, when the EDA change amount is not less than the threshold value + F and less than the threshold value G, and the EDR amplitude value is not less than the threshold value + B and less than the threshold value C, the psychological state is expressed by the area feeling (refreshing) and the point feeling feeling. Judge as both.
Furthermore, it does not correspond to the six psychological states shown in FIG. 12, such as relax, area feeling (refresh), point feeling, point feeling + relax, area feeling (refresh) + point feeling, and pain. In the case, it is determined as neutral.
For example, + D or more, −E or less, + H or more, and −J or less are invalid, and the psychological state is determined to be neutral.

  The preliminary massage (steps S3 to S6) shown in FIG. 8 is sequentially performed on the four body parts “neck / shoulder”, “back”, “waist” and “leg / foot”, and then the book shown in FIG. Transition to massage.

First, in step S7, a psychological state estimation result for each body part is acquired, and a massage operation corresponding to the first selected operation mode is determined for each body part according to the estimation result. And this massage is started in step S8.
The massage operation in this massage is performed by a combination of fir, tapping, tapping, and acupressure, and the adjustment of the massage operation is performed by a combination of adjustments such as speed, time, number of times, and strength.

  For example, in the stiffness improving mode, as shown in FIG. 10 (a), the massage operation of the part determined to have a sense of stiffness increases, the massage operation of the part determined to be refreshed is maintained, and the massage operation of the part determined to be relaxed Is maintained, and massage is performed so that the massage operation of the part determined to be pain is reduced. In the stiffness improvement (refresh) mode, as shown in FIG. 10 (b), the massage operation of the part determined to have a sense of stiffness increases, the massage operation of the part determined to be refreshed increases, and the massage of the part determined to be relaxed Massage is performed so that the movement decreases and the massage movement of the part determined to be painful decreases. In the stiffness improving (relaxing) mode, as shown in FIG. 10 (c), the massage operation of the part determined to be a feeling of stiffness increases, the massage operation of the part determined to be refreshed decreases, and the part determined to be relaxed. The massage operation is increased so that the massage operation at the site determined to be painful is decreased.

FIG. 13 shows seven psychological states (pain, area feeling + point feeling, area feeling, point feeling, point feeling, EDA change amount and EDR amplitude value as two variables). 7 points (P1 to P7) are plotted corresponding to the point feeling of stiffness + relaxation, relaxation, neutral).
FIG. 14 shows the adjustment of massage operation in each operation mode (relaxation mode, refresh mode, stiffness improvement mode, stiffness improvement (refresh) mode, stiffness improvement (relaxation) mode) for the seven psychological states represented by these seven points. Represents the method.

  As a massage for each part, in the relax mode, the massage that is presumed to be relaxed is focused on. In the refresh mode, massage is given mainly to the area estimated to have a sense of stiffness in the area. In the stiffness improvement mode, a massage centered on acupressure is applied to a portion estimated to be a sense of stiffness at the point. In the stiffness improvement (refresh) mode, massage is focused on the area estimated to be a feeling of stiffness in the area, and massage centered on acupressure is applied to the area estimated to be a feeling of stiffness at the point. Further, in the stiffness improvement (relaxation) mode, massage centered on acupressure is applied to a portion estimated to be point stiffness, and massage is focused on a portion determined to be relaxed.

When the main massage for all the parts is completed in step S9 of FIG. 8, the same preliminary massage (steps S3 to S6) and the main massage (steps S7 to S9) are repeated a plurality of times (for example, three times), and then a series of End the massage operation.
In the repetition of the preliminary massage and the main massage, the same adjustment may be performed for all the main massages, or the adjustment may be changed for each main massage.

  FIG. 9 shows the operation of the massage machine that automatically selects the operation mode. First, after performing the necessary initialization in step S11, in step S12, the body shape of the user is measured to detect the shoulder position and the acupoint (diameter hole) position, and then the preliminary massage and the main massage are repeatedly performed. To do.

In the pre-massage, after starting pre-massage for each body part of “neck / shoulder”, “back”, “waist”, and “leg / foot” in step S13, in step S14, the EDA sensor sends EDA as biometric information. Is obtained, and the change amount (ΔV / s) of EDA within the estimation period is calculated by applying the least square method to the measurement value of EDA obtained within the estimation period.
Also, the EDR measurement value obtained from the EDA sensor (22) through the high-pass filter (23) is acquired, and the EDR amplitude value (mV) obtained within the estimation period is calculated.
In step S15, the psychological state of each body part is estimated based on the calculated change amount (ΔV / s) of EDA and the amplitude value (mV) of EDR.

Next, in step S16, after determining the operation mode of this massage based on the estimation result of the psychological state about each body part, preliminary massage is complete | finished in step S17.
In the determination of the operation mode, for example, when a sense of stiffness is detected, the stiffness improvement mode is set. If many senses of stiffness and refresh are detected, set the refresh (collision improvement) mode. If a lot of sense of stiffness and relaxation is detected, set the relaxation (collision improvement) mode. When the sense of stiffness is hardly detected and a lot of refreshes are detected, the refresh mode is set. Also, when the feeling of stiffness is hardly detected and a lot of relaxation is detected, the relaxation mode is set.

  In this massage, in step S18, a psychological state estimation result for each body part is acquired, and a massage operation corresponding to the determined operation mode is determined for each body part according to the estimation result. And this massage is started in step S19.

In step S20, when the main massage for all the parts is completed, the same preliminary massage (steps S13 to S17) and the main massage (steps S18 to S20) are repeated a plurality of times (for example, three times), and then a series of massages are performed. End the operation.
In the repetition of the preliminary massage and the main massage, the same adjustment may be performed for all the main massages, or the adjustment may be changed for each main massage.

  According to the massage machine of the present invention, in preliminary massage, EDA is detected by applying massage stimulation to a wide body part such as “neck / shoulder”, “back”, “waist” and “leg / foot”. By detecting the EDR included in the EDA, it is possible to simultaneously detect and estimate the area feeling and the point feeling, so that the “neck / shoulder”, “back”, “waist” as in the past. ”And“ Leg / Foot ”After the first pre-massage, it is not necessary to perform the second pre-massage for the acupoint position. Can be transferred to.

  Further, according to the massage machine of the present invention, the EDR amplitude value is estimated based on the EDA change amount while estimating the stiffness of the area caused by the massage stimulus for the muscle fatigue or tension in the body part of a relatively large region. Is used to estimate the point feeling due to massage stimulation to local body parts such as acupoints, so it is possible to distinguish between area feeling and point feeling, and more accurate psychology. A state estimation result can be obtained. As a result, it is possible to finely adjust the massage operation, thereby obtaining a higher massage effect than before.

For example, as shown in FIGS. 18 (a) and 18 (b), when both EDA and EDR are constant, if the level fluctuation of EDA is substantially constant as shown in FIG. However, in this case, there was a possibility that the relaxed feeling and the point feeling were offset.
On the other hand, in the present invention, as shown in FIG. 18 (b), it is determined that there is no point feeling from EDR, and as shown in FIG. It is determined that there is no (neutral). Then, it is determined that there is no sense of stiffness (neutral).

As shown in FIGS. 19 (a) and 19 (b), when EDA gradually increases and there is a response to EDR, if the gradual level fluctuation of EDA is substantially constant as shown in FIG. In the determination using only EDA, it was determined that there was a sense of stiffness (refresh), but no distinction was made as to whether it was a sense of point or a sense of area.
On the other hand, in the present invention, as shown in FIG. 19 (b), it is determined from EDR that the point has a sense of stiffness, and as shown in FIG. 19 (a), EDA reacts from EDA. In spite of the fact that there is a small increase in the amount of change, it is determined that there is no sense of stiffness in the area (neutral). Overall, it is determined that there is a sense of stiffness (neutral).

As shown in FIGS. 20 (a) and 20 (b), when EDA increases gradually and there is no response to EDR, if the level fluctuation of EDA increases as shown in FIG. 20 (c). In the conventional determination using only EDA, it was determined that there was a sense of stiffness (refresh), but no distinction was made as to whether it was a sense of point or a sense of area.
On the other hand, in the present invention, as shown in FIG. 20 (b), it is determined from EDR that there is no point feeling, and as shown in FIG. 20 (a), there is area feeling from EDA. (Refresh) is determined. Overall, it is determined that there is a sense of stiffness (refresh).

Further, as shown in FIGS. 21 (a) and 21 (b), when the EDA is remarkably increased and the EDR also has a reaction, if the level fluctuation of the EDA is increased as shown in FIG. 21 (c). In the conventional determination using only EDA, it was determined that there was a sense of stiffness (refresh), but no distinction was made as to whether it was a sense of point or a sense of area.
On the other hand, in the present invention, as shown in FIG. 21 (b), it is determined from EDR that there is a sense of point stiffness, and as shown in FIG. Since it is large, it is determined that there is a sense of stiffness in the area (refresh). Overall, it is determined that there is a sense of stiffness (refresh).

Further, as shown in FIGS. 22 (a) and 22 (b), when EDA is reduced and there is no response to EDR, if the level fluctuation of EDA is reduced as shown in FIG. In the determination based only on EDA, it was determined that there was no sense of stiffness (relaxed), but there was a possibility that the sense of stiffness at the point was canceled.
On the other hand, in the present invention, as shown in FIG. 22B, it is determined that there is no point feeling in EDR, and as shown in FIG. Judged as none (relaxed). Overall, it is determined that there is no sense of stiffness (relaxed).

Furthermore, as shown in FIGS. 23 (a) and 23 (b), EDA contains an alternating current component but is substantially constant. When EDA has a reaction, the EDA is slowly contained in EDA as shown in FIG. 23 (c). Assuming that the level fluctuation has decreased, it has been determined that there is no sense of stiffness (relaxation) in the conventional judgment using only EDA, but there is a possibility that the sense of sense of stiffness has been canceled.
On the other hand, in the present invention, as shown in FIG. 23 (b), it is determined that there is a point feeling from EDR, and as shown in FIG. Judged as none (relaxed). Overall, it is determined that there is a sense of stiffness (relaxed).

  As described above, according to the massage machine of the present invention, it is possible to distinguish between the point feeling and the area feeling, and the determination result is more accurate than the conventional case as in FIG. Therefore, a high massage effect can be obtained by adjusting the massage operation based on the determination result.

  In addition, while giving a focus on the area where there is a sense of stiffness, and adjusting the massage operation for the relaxed or refreshed part, a refresh (collision improvement) mode, a relaxation (collision improvement) mode, etc. are realized. As a result, it is possible to obtain a refreshing effect and a relaxing effect while improving the stiffness that is the original purpose of the massage machine.

  Furthermore, since it is possible to simultaneously estimate the area feeling and the point feeling, for example, it is possible to determine that the area is relaxed and the acupressure point is determined to have a feeling of stiffness. Since there is no change in biological reaction that occurs when there is a time difference in the estimation of feeling, effective massage treatment is realized.

  In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim. For example, in the operation of the massage machine shown in FIG. 8, in the pre-massage for a wide body part such as “neck / shoulder”, “back”, “waist” and “leg / foot”, pre-massage is performed on all parts. In addition to the method of estimating the psychological state of all body parts after applying, it is possible to adopt a method of repeating for each body part the operation of estimating the psychological state of the body part after preliminarily massaging one body part I can do it.

It is a block diagram which shows the structure of the massage machine which concerns on this invention. It is a block diagram which shows the structure of a biometric information acquisition part and a control circuit. It is a graph which shows the change of EDA. It is a graph which shows the change of EDR. It is a figure explaining the change of the psychological state corresponding to an EDA variation | change_quantity and an EDR amplitude value. It is a figure showing the area | region of several psychological states in the orthogonal coordinate system which uses an EDA variation | change_quantity and an EDR amplitude value as two axes. FIG. 7 is a diagram in which areas of feeling of stiffness are combined into one in FIG. 6. It is a flowchart showing the operation example of the massage machine which concerns on this invention. It is a flowchart showing the other operation example of the massage machine which concerns on this invention. It is a figure explaining massage operation to a psychological state in a plurality of operation modes. It is a graph explaining the threshold value at the time of discriminating a psychological state from an EDA variation | change_quantity and an EDR amplitude value. It is a figure showing the relationship between the several area | region divided by the threshold value, and a psychological state in the orthogonal coordinate system which makes an EDA variation | change_quantity and an EDR amplitude value two axes. It is a figure which shows the representative point of each area | region in the orthogonal coordinate system same as the above. It is a chart showing the adjustment method of massage operation in a plurality of operation modes. It is a flowchart which shows the first half of the operation | movement in the conventional massage machine. It is a flowchart which shows the second half of the operation | movement in the conventional massage machine. It is a figure explaining the change of the psychological state corresponding to the amount of EDA change in the conventional massage machine. It is a figure showing an example which compared the determination result of the psychological state of the massage machine which concerns on this invention, and the conventional massage machine. It is a figure showing the other example which compared the determination result of the psychological state of the massage machine which concerns on this invention, and the conventional massage machine. It is a figure showing the other example which compared the determination result of the psychological state of the massage machine which concerns on this invention, and the conventional massage machine. It is a figure showing the other example which compared the determination result of the psychological state of the massage machine which concerns on this invention, and the conventional massage machine. It is a figure showing the other example which compared the determination result of the psychological state of the massage machine which concerns on this invention, and the conventional massage machine. It is a figure showing the further another example which compared the determination result of the psychological state of the massage machine which concerns on this invention, and the conventional massage machine.

Explanation of symbols

(1) Massage unit
(2) Biometric information acquisition unit
(3) Control circuit
(7) Information processing circuit
(22) EDA sensor
(23) High pass filter
(31) Psychological state estimation unit

Claims (6)

  In a massage machine comprising a biological information acquisition unit that acquires biological information of a user and a control circuit that controls a massage operation based on the biological information acquired by the biological information acquisition unit, the biological information acquisition unit includes: An electrical skin activity sensor for detecting electrical skin activity of the user, and the control circuit includes a skin electrical activity determination value representing a temporal change amount of electrical skin activity detected by the electrical skin activity sensor, and the skin Based on the skin electrical response determination value that represents the amplitude value of the electrical skin reaction included in the electrical activity, the psychological state of the user in response to the massage stimulus is neutral, which represents a neutral state between relaxation and relaxation, and an acupoint A sense of stiffness at the point representing the refresh reaction of the local body part including the position, and a wider area than the local body part. Specific and stiffness feeling of the area representing the refresh response of the body part, and estimates the plurality of psychological conditions including painful City, massage machine and adjusting the massage action in accordance with the estimation result.   In the control circuit, the skin electrical activity determination value and the skin electrical reaction determination value are defined as two variables, and the relationship between the values of these two variables and the plurality of psychological states is defined. The massage machine of Claim 1 which discriminate | determines a to-be-treated person's psychological state from the said electrodermal activity determination value and an electrodermal reaction determination value using this relationship.   In the relationship defined in the control circuit, the relationship of the psychological state to the skin electrical activity determination value is such that the psychological state is relaxed when the skin electrical activity determination value is less than a first threshold I smaller than 0, When the activity determination value is greater than or equal to the first threshold I and less than the positive second threshold F, the psychological state is neutral, and when the electrodermal activity determination value is greater than or equal to the second threshold F and less than the third threshold G, the psychological state is area The massage machine according to claim 2, wherein the psychological state is specified to be painful when the skin electric activity determination value is equal to or greater than a third threshold value G.   In the relationship defined in the control circuit, the relationship of the psychological state to the skin electrical reaction determination value is that the psychological state is neutral when the skin electrical reaction determination value is less than a positive first threshold B, and the skin electrical reaction determination When the value is greater than or equal to the first threshold value B and less than the second threshold value C, the psychological state is sense of point stiffness, and when the skin electrical response determination value is greater than or equal to the second threshold value C, the psychological state is prescribed to be painful. The massage machine according to claim 2 or claim 3.   In the relationship defined in the control circuit, the relationship between the skin electrical activity determination value and the skin electrical reaction determination value is such that the skin electrical activity determination value is less than a first threshold I and the skin electrical response When the determination value is greater than or equal to the first threshold value B and less than the second threshold value C, the psychological state is both point stiffness and relaxation, and the skin electrical activity determination value is greater than or equal to the second threshold value F and less than the third threshold value G. And when the skin electrical reaction determination value is equal to or greater than a first threshold value B and less than a second threshold value C, the psychological state is defined to be both an area feeling and a point feeling. The massage machine according to any one of claims 2 to 4.   The control circuit estimates a psychological state by executing a preliminary massage, and executes a subsequent main massage based on the estimation result of the psychological state. In the main massage, the control circuit focuses on a portion estimated to be relaxed. Relax mode that gives massage to the body, Refresh mode that focuses massage on the area estimated to be a feeling of stiffness in the area, Collision improvement mode that focuses massage on the area that is estimated to feel the stiffness of the point, and points A massage improvement (refresh) mode that adjusts the massage operation of the part estimated to be refreshed while giving a massage mainly to the part estimated to have a feeling of stiffness, and a massage focused on the part estimated to be point feeling To improve the stiffness of the body that is estimated to be relaxed ) Mode and is, massage machine according to claim 5 which is selectively set.

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