Measuring device

Abstract

A measurement device capable of suppressing noise originating from a body movement of a subject while ensuring a level of a measurement signal is provided. The measurement device of an embodiment includes a first fixing body, a sensor fixing body that fixes a sensor that detects a biological signal, and the sensor, and has a structure in which the first fixing body and the sensor fixing body are separated.

Description

Technical Field

[0001] This invention relates to a measuring device. Background Technology

[0002] There are known measuring devices that measure biological signals such as electrocardiograms or magnetocardiograms that originate from human heart activity.

[0003] In such measuring devices, for example, when the subject is in direct contact with the sensor, or when the subject's activity is indirectly transmitted to the sensor, noise originating from the subject's physical activities such as breathing or heartbeat may sometimes be generated in the measurement signal.

[0004] In the method described in Patent Document 1, a magnetometer system is used to analyze the magnetic field of a region of the subject's body. Furthermore, in this method, a filter is used to attenuate noise originating from the subject's bodily movements (see Patent Document 1).

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Publication No. 2020-521564 Summary of the Invention

[0008] The technical problem that the invention aims to solve

[0009] However, existing methods sometimes fail to adequately remove noise originating from physical activity.

[0010] For example, frequency filtering using high-pass or low-pass filters is known as a representative noise removal method. However, when the frequency band of the signal that is the target of measurement (the signal of interest) is close to the frequency band of noise originating from physical activity, noise removal using frequency filtering will also affect (attenuate) the signal of interest.

[0011] As a specific example, there are cases where the frequency band of the T wave (approximately 4–7 Hz) in an electrocardiogram (or magnetocardiogram) is removed due to filtering.

[0012] Furthermore, in the existing technology, when the measurement is performed without contact between the subject and the sensor, there are situations where the distance between the subject and the sensor is too far, making it impossible to detect a measurement signal of sufficient strength, or where it is difficult to maintain the subject's posture during the measurement.

[0013] The present invention was made in view of the above-mentioned problems, and aims to provide a measuring device capable of suppressing noise originating from the body activity of the subject and ensuring the level of the measurement signal.

[0014] Technical solutions for solving technical problems

[0015] As one approach, a measuring device is provided, comprising: a first fixation body; a sensor fixation body for fixing a sensor for detecting biosignals; and the sensor, wherein the measuring device has a structure in which the first fixation body and the sensor fixation body are separate.

[0016] The effects of the invention

[0017] The measuring device according to the present invention can suppress noise originating from the body activity of the subject while ensuring the level of the measurement signal. Attached Figure Description

[0018] Figure 1 This is a diagram showing a schematic structural example of a measurement system including the measuring device of the first embodiment.

[0019] Figure 2 This is a diagram showing examples of the structure of the subject fixation body and the sensor fixation body that constitute the measuring device of the first embodiment.

[0020] Figure 3 This is a diagram showing the general structure of the measuring device of the first embodiment when viewed from roughly the left.

[0021] Figure 4 This is a diagram showing the general structure of the measuring device of the first embodiment when viewed from roughly below.

[0022] Figure 5 This is a diagram showing an example of the configuration of the sensor holding part of the subject fixation body in the measuring device of the first embodiment.

[0023] Figure 6 This is a diagram illustrating an example of a measurement of a subject (person) using the measuring device of the first embodiment.

[0024] Figure 7 This is a diagram illustrating an example of a measuring device including a measuring chamber (measuring room) according to the first embodiment.

[0025] Figure 8 This is a diagram illustrating an example of the subject fixation body and sensor fixation body being fixed in the measurement chamber according to the first embodiment.

[0026] Figure 9 This is a diagram showing a schematic structural example of a measurement system including the measuring device of the second embodiment.

[0027] Figure 10 This is a diagram showing structural examples of the subject fixation body and the sensor fixation body that constitute the measuring device of the second embodiment.

[0028] Figure 11 This is a diagram illustrating a schematic structural example of a measurement system including the measuring device of the third embodiment.

[0029] Figure 12 This is a diagram showing a schematic structural example of a measurement system including the measuring device of the fourth embodiment.

[0030] Explanation of reference numerals in the attached figures

[0031] 1, 1001, 3001, 4001 measurement systems

[0032] 11, 1011, 3011, 4011 Measuring Devices

[0033] 21,1021 subjects fixed bodies

[0034] 22, 1022, 3022 sensor fixtures

[0035] 111, 1111 board

[0036] 121, 1121 Right Hand Placement Platform

[0037] 122, 1122 Left hand placement platform

[0038] 151~154, 161~164, 231, 232, 251~254, 261~264, 1151~1154, 1161~1164, 1231, 1232, 1251~1254, 1261~1264 protrusions

[0039] 211, 1211 Sensor Holding Section

[0040] 221, 222, 1221, 1222 Cable Retention Section

[0041] 311, 1311 sensors

[0042] 321, 1321 recorders

[0043] 322, 1322 computers

[0044] 331, 1331 cable

[0045] 411 chair

[0046] 421 subjects

[0047] 711, 713, 831, 833, 911, 921 brackets (also known as support brackets)

[0048] 1511 Position Adjustment Unit

[0049] 1521, 1522 Height Adjustment Section

[0050] 2011 Measurement Room

[0051] 2021 ground

[0052] 2031, 2032 sidewalls

[0053] 2033 inner side wall

[0054] 2111, 2112 Shielding components

[0055] 3121, 3122 Support parts

[0056] 3211, 3212, 4211, 4212 Reference Sensor Holding Section

[0057] Holes 3311, 3312, 4311, and 4312

[0058] 3411, 3412, 4411, 4412 reference sensors

[0059] 4111, 4112 Reference sensor support

[0060] A1, A11, B1, B11 right foot

[0061] A2, A12, B2, B12 Left foot

[0062] Platforms A3, A13, B3, B13, and B23

[0063] Distance P1

[0064] P11, P12 directions

[0065] Components Q1, Q2, Q11, Q12, and Q111. Detailed Implementation

[0066] Hereinafter, this embodiment will be described in detail with appropriate reference to the accompanying drawings.

[0067] In this embodiment, the shape or size of each component (structural part) or the relationship between two or more components are illustrated, but these are not necessarily configured as strictly as illustrated in this embodiment. For example, errors such as manufacturing errors may be included to a degree that does not hinder practical use.

[0068] As a specific example, terms used to indicate the relationship between two or more components include parallel or equal (same), but these terms are not necessarily strictly constructed as illustrated in this embodiment. For example, they may include errors such as manufacturing errors to a degree that does not hinder practical use.

[0069] (First Embodiment)

[0070] In this embodiment, refer to Figures 1 to 8 The same structure will be described. For ease of explanation, some structural parts and their reference numerals have been omitted in some of the illustrations.

[0071] [Measurement System]

[0072] Figure 1 This is a diagram showing a schematic structural example of a measurement system 1 including the measuring device 11 of the first embodiment.

[0073] exist Figure 1 In this embodiment, for ease of explanation, the XYZ Cartesian coordinate system is used as a three-dimensional Cartesian coordinate system. In this embodiment, for ease of explanation, the positive direction of the X-axis is defined as the right, the negative direction of the X-axis as the left, the positive direction of the Y-axis as the inward direction, the negative direction of the Y-axis as the forward direction, the positive direction of the Z-axis as the upward direction, and the negative direction of the Z-axis as the downward direction.

[0074] The measurement system 1 includes a measuring device 11, a recorder 321, a computer 322, and a cable 331.

[0075] Cable 331 connects sensor 311 and recorder 321 in a manner that enables communication between sensor 311 and recorder 321 provided in measuring device 11.

[0076] Sensor 311 measures (detects) a specified physical quantity and sends the measurement result information to recorder 321 via cable 331.

[0077] The recorder 321 has a memory and receives measurement result information sent from the sensor 311 via cable 331, storing (recording) the received information in the memory. A computer 322 is communicatively connected to the recorder 321, reads the measurement result information stored in the recorder 321's memory, and performs prescribed processing. This prescribed processing can be arbitrary.

[0078] Here, in Figure 1 The example illustrates a single sensor 311 installed on the measuring device 11, but multiple sensors can also be installed on the measuring device 11. In this case, for example, each sensor can be communicatively connected to a recorder 321 via a separate cable, and the recorder 321 stores information about the measurement results of the multiple sensors.

[0079] In addition, Figure 1 The example illustrates a wired cable 331, but a wireless line can also be used instead of a wired cable 331, in which case wireless communication is performed between the sensor 311 and the recorder 321.

[0080] In addition, in this embodiment, the external devices (devices) of the measuring device 11 are described as recorder 321, computer 322, cable 331 and sensor 311. However, as another example, the measuring device 11 may include more than one of recorder 321, computer 322, cable 331 and sensor 311.

[0081] Alternatively, for example, part or all of the measuring device 11 may be a jig.

[0082] <Measuring Device>

[0083] Figure 2 This is a diagram showing an example of the structure of the subject fixation body 21 and the sensor fixation body 22 that constitute the measuring device 11 of the first embodiment.

[0084] exist Figure 2 For ease of explanation, the image shown is similar to... Figure 1 The same XYZ rectangular coordinate system.

[0085] Here, in Figure 1 The image shows the state in which the measuring device 11 is used, with the measured object fixation body 21 and the sensor fixation body 22 combined.

[0086] On the other hand, Figure 2 In the illustration, the subject fixation body 21 and the sensor fixation body 22 are shown separately.

[0087] Explain the structural example of the fixed body 21 of the measured object.

[0088] The subject fixation body 21 includes a right foot A1, a left foot A2, and a platform A3.

[0089] The right foot A1 is composed of multiple cuboid components, and as a whole, it is a foot-shaped component with a specified height (distance in the vertical direction).

[0090] The left foot A2 is composed of multiple cuboid components, and as a whole, it is a foot-shaped component with a specified height (distance in the vertical direction).

[0091] Here, the height of the right foot A1 is equal to the height of the left foot A2.

[0092] In general, the right foot A1 and the left foot A2 each have a structure in which two cuboid components extending in the vertical direction are fixed by one or more components extending in the horizontal direction (perpendicular to the vertical direction).

[0093] The right foot A1 has two protrusions 151 and 152 protruding to the right at the lower end.

[0094] In addition, the right foot A1 has two protrusions 153 and 154 protruding to the right at a position midway in the vertical direction.

[0095] These four protrusions, 151 to 154, protrude to the right by an equal length.

[0096] The left foot A2 has two protrusions 161 and 162 at the lower end, which protrude to the left.

[0097] In addition, the left foot A2 has two protrusions 163 and 164 protruding to the left at a position midway in the vertical direction.

[0098] These four protrusions, 161 to 164, protrude to the left by equal lengths.

[0099] Furthermore, the positions of the protrusions 151-154 starting from the right foot A1 are not necessarily completely symmetrical with respect to the positions of the protrusions 161-164 starting from the left foot A2. For example, it could be a structure where some parts are symmetrical while others are not. Alternatively, the positions of the protrusions 151-154 starting from the right foot A1 and the protrusions 161-164 starting from the left foot A2 can also be completely symmetrical with respect to the left and right.

[0100] The platform A3 includes a structural part composed of multiple cuboid components arranged on the upper surface of the right foot A1 and the upper surface of the left foot A2.

[0101] In general, the platform A3 has a structure in which two cuboid components extending in the left-right direction are fixed by one or more components extending in the depth direction (connecting the front and inner sides).

[0102] In addition, the table A3 includes: a plate 111 disposed in the upper part of the center of the structure; a right hand rest 121 disposed in the upper part of the right side of the structure; and a left hand rest 122 disposed in the upper part of the left side of the structure.

[0103] Here, plate 111 includes: a frame having a rectangular (e.g., square) face; and a thin film-like component disposed on the face of the frame. The thin film-like component is, for example, transparent or translucent, and is made of a material that does not affect the measurement of sensor 311.

[0104] Plate 111 is configured such that the face of the frame is parallel to the XZ plane, and the frame is located at the front side of the platform A3. The frame extends upward from the platform A3.

[0105] The right hand rest 121 is a plate-shaped component, positioned to the right of plate 111. The surface of the right hand rest 121 is parallel to the XY plane and is rectangular in shape. This surface, for example, has a long side extending inwards from the front and short sides extending to the left and right.

[0106] The left hand rest 122 is a plate-shaped component, positioned to the left of plate 111. The surface of the left hand rest 122 is parallel to the XY plane and is rectangular. This surface, for example, has a long side extending inwards from the front and short sides extending to the left and right.

[0107] Here, the left hand placement platform 122 and the right hand placement platform 121 are arranged symmetrically about the plate 111.

[0108] Here, the right hand rest 121 and the left hand rest 122 can each be configured to be detachable from the table A3, or they can be configured to be fixed inseparably from the table A3.

[0109] The right hand rest 121 and the left hand rest 122 can each be installed on the table A3 using screws, fixing straps, single- or double-sided tape, fasteners, or adhesives.

[0110] Furthermore, in this embodiment, the right hand rest 121 and the left hand rest 122 have rectangular plates. As other structural examples, they may also have plates with shapes including curved portions.

[0111] Furthermore, for example, the surfaces of the right hand rest 121 and the left hand rest 122 can be designed to adjust their positional relationship with the upper surface of the platform A3 (e.g., their angular relationship with each other in surfaces parallel to the XY plane).

[0112] Alternatively, one or both of the right hand rest 121 and the left hand rest 122 may be connected to the front or back side of the table portion A3 via a hinge. In this case, the hand rests (one or both of the right hand rest 121 and the left hand rest 122) connected by the hinge can open and close relative to the table portion A3 by opening and closing the hinge. Thus, for example, the hinge can be in the open state when performing operations combining the measured object fixation body 21 and the sensor fixation body 22, and in the closed state when performing measurements using the measuring device 11, etc.

[0113] In addition, in this embodiment, the table A3 is shown to include two hand rests (right hand rest 121 and left hand rest 122). As other structural examples, a structure that includes either of the two hand rests but not the other, or a structure that does not include either of the two hand rests, may also be adopted.

[0114] Explain the structure of sensor fixture 22.

[0115] The sensor fixture 22 includes a right foot B1, a left foot B2, and a platform B3.

[0116] The right foot B1 is constructed by combining multiple cuboid-shaped components, and the whole is a foot-shaped component with a specified height (distance in the vertical direction).

[0117] The left foot B2 is constructed by combining multiple cuboid-shaped components, and the whole is a foot-shaped component with a specified height (distance in the vertical direction).

[0118] Here, the height of the right foot B1 is equal to the height of the left foot B2.

[0119] The right foot B1 has two protrusions 251 and 252 protruding to the right at the lower end.

[0120] In addition, the right foot B1 has two protrusions 253 and 254 that protrude to the right at a position midway in the vertical direction.

[0121] The four protrusions 251 to 254 protrude to the right by an equal length.

[0122] The right foot B1 has two protrusions 231 and 232 that protrude inward at a position along the vertical direction.

[0123] These two protrusions, 231 and 232, are positioned at different heights.

[0124] The two protrusions 231 and 232 protrude inward by equal lengths.

[0125] In addition, in this embodiment, these two protrusions 231 and 232 are omitted from detailed description, but can also be used for positioning, etc.

[0126] In general, the right foot B1 and the left foot B2 each have a structure in which two cuboid parts extending in the vertical direction are fixed by one or more parts extending in the horizontal direction (perpendicular to the vertical direction).

[0127] The left foot B2 has two protrusions 261 and 262 protruding to the left at the lower end.

[0128] In addition, the left foot B2 has two protrusions 263 and 264 that protrude to the left at a position midway in the vertical direction.

[0129] These four protrusions, 261 to 264, protrude to the left by equal lengths.

[0130] Furthermore, the positions of the protrusions 251-254 starting from the right foot B1 and the protrusions 261-264 starting from the left foot B2 can, for example, be completely symmetrical. However, the positions of the protrusions 251-254 starting from the right foot B1 and the protrusions 261-264 starting from the left foot B2 are not necessarily completely symmetrical; for example, a structure in which some parts are symmetrical while others are not can be used.

[0131] The platform B3 includes a structural part composed of multiple cuboid components arranged on the upper surface of the right foot B1 and the upper surface of the left foot B2.

[0132] In general, the platform B3 has a structure in which two cuboid components extending in the left-right direction are fixed by one or more components extending in the depth direction (connecting the front and inner sides).

[0133] In addition, the platform B3 includes a sensor holding part 211 located in the upper part of the center of the structure.

[0134] The sensor holding part 211 has a cuboid-shaped housing, inside which multiple sensors (e.g., those with...) are installed. Figure 1 The sensor 311 shown is the same sensor as the one shown.

[0135] In this embodiment, the front surface of the sensor holding section 211 is parallel to the XZ plane, allowing for the mounting of two or more sensors in both the vertical and horizontal directions. That is, multiple sensors can be arranged in a matrix on the front surface of the sensor holding section 211. The sensor holding section 211, which holds a matrix of sensors, may also be referred to as a sensor array section, for example.

[0136] Here, in this embodiment, it is shown that the frame surface of the plate 111 is parallel to the XZ plane, and the front side surface of the sensor holding part 211 is also parallel to the XZ plane, but they are not necessarily parallel to the XZ plane.

[0137] For example, the surface of the frame of plate 111 and the front side of the sensor holding part 211 can be a plane that is not parallel to the XZ plane (i.e., a plane that is not parallel to the XZ plane), or it can be a curved surface.

[0138] In addition, the frame surface of plate 111 and the front side surface of sensor holding part 211 can be, for example, the same shape or different shapes, and the frame surface of plate 111 covers the front side surface of sensor holding part 211.

[0139] With the subject fixation body 21 and the sensor fixation body 22 combined, the front surface of the sensor holding part 211 is positioned opposite the inner surface of the plate 111. In this embodiment, these two surfaces have approximately the same shape. This shape is, for example, rectangular (including square).

[0140] In addition, the platform B3 includes two cable retaining parts (cable receiving components) 221 and 222 that protrude inward from the structure.

[0141] The cable holding part 221 is positioned on the right side compared to the sensor holding part 211 in the left-right direction.

[0142] The cable holding part 222 is arranged in the left-right direction at a position that overlaps with the sensor holding part 211 (for example, at the center in the left-right direction).

[0143] Additionally, in the stage B3, a cable holding part may be further provided that is disposed on the left side of the sensor holding part 211 in the left-right direction.

[0144] Here, cable retainers 221 and 222 are, for example, capable of supporting the cable connecting the sensor and the recorder 321 (e.g., with...). Figure 1 The cable shown is the same as cable 331.

[0145] Alternatively, when using a wireless line instead of a wired cable 331, or when using a wired cable 331 but without the need to support the cable 331, a structure without cable holding parts 221 and 222 can be used.

[0146] <Combination of subject fixation and sensor fixation>

[0147] In this embodiment, the subject fixation body 21 and the sensor fixation body 22 are combined to form a measuring device 11.

[0148] As a specific example, in Figure 2 The sensor fixture 22 shown is in a state where components Q1 and Q2 are removed, and Figure 2 With the right hand rest 121 and left hand rest 122 of the subject fixation body 21 removed, the sensor fixation body 22 is installed from top to bottom on the subject fixation body 21. When the right hand rest 121 and left hand rest 122 of the subject fixation body 21 are installed, it becomes... Figure 1 The state of the measuring device 11 shown.

[0149] In this embodiment, the right foot B1 and left foot B2 of the sensor fixture 22 are arranged on the outer side in the left-right direction and on the inner side in the depth direction (the direction of the front and inner sides) relative to the right foot A1 and left foot A2 of the subject fixture 21.

[0150] Furthermore, the lower surfaces of the right hand rest 121 and the left hand rest 122 of the subject rest 21 are positioned above the upper surface of the stage B3 of the sensor fixture 22.

[0151] Here, in this embodiment, a structure is shown in which the subject fixation body 21 and the sensor fixation body 22 can be installed and removed (can be separated and combined), but it is also possible for the subject fixation body 21 and the sensor fixation body 22 to be integrally formed and inseparable.

[0152] That is, as long as it constitutes Figure 1 The measuring device 11 shown is sufficient; it is not necessary for the measured object fixation 21 and the sensor fixation 22 to be separable from each other.

[0153] In this embodiment, in the measuring device 11, the measured object fixation body 21 and the sensor fixation body 22 do not contact each other at any part.

[0154] Figure 3 This is a diagram showing the general structure of the measuring device 11 of the first embodiment when viewed from roughly the left.

[0155] exist Figure 3 For ease of explanation, the image shown is similar to... Figure 1 The same XYZ rectangular coordinate system.

[0156] Figure 4 This is a diagram showing the general structure of the measuring device 11 of the first embodiment when viewed from roughly below.

[0157] exist Figure 4 For ease of explanation, the image shown is similar to... Figure 1 The same XYZ rectangular coordinate system.

[0158] Here, in Figure 3 and Figure 4 In order to make the illustrations easier to understand, some structures (such as the right hand placement platform 121, the left hand placement platform 122, and the cable holding parts 221 and 222) have been omitted from the illustrations.

[0159] <Example of sensor holding unit configuration>

[0160] Figure 5 This is a diagram showing an example of the configuration of the sensor holding part 211 of the subject fixation body 21 of the measuring device 11 in the first embodiment.

[0161] exist Figure 5 The image shows the measuring device 11 of the first embodiment viewed from approximately the right side.

[0162] exist Figure 5 For ease of explanation, the image shown is similar to... Figure 1 The same XYZ rectangular coordinate system.

[0163] In this embodiment, the front surfaces of the right foot A1 and left foot A2 of the subject fixation body 21 are parallel to the vertical direction.

[0164] Moreover, in Figure 5 In the example, the heel-facing surface of the sensor holding part 211 is configured to protrude a predetermined distance P1 toward the heel-facing surfaces of the right foot A1 and the left foot A2.

[0165] Furthermore, when the subject fixation body 21 and the sensor fixation body 22 are combined, the sensor holding part 211 and the plate 111 are configured not to contact each other.

[0166] <Examples of measurements performed using measuring devices>

[0167] Figure 6 This is a diagram illustrating an example of a measurement of a subject (person) 421 using the measuring device 11 of the first embodiment.

[0168] exist Figure 6 For ease of explanation, the image shown is similar to... Figure 1 The same XYZ rectangular coordinate system.

[0169] exist Figure 6 The diagram shows a general layout of the chair 411, the person being measured 421, and the measuring device 11. The person being measured 421 is a person sitting on the chair 411.

[0170] The measurement is performed with the front surface (the face) of the subject 421 facing the front side (the side where the plate 111 is located) of the measuring device 11.

[0171] exist Figure 6 In the example, it represents the use of measuring device 11 to measure information about the magnetic field (magnetic signal) originating from the heart activity of the subject 421.

[0172] As sensor 311, a magnetic sensor is used.

[0173] With the subject 421 seated on the chair 411, the chest of the subject 421 is facing the inside of the frame of the board 111. For example, the measurement can also be performed with the chest of the subject 421 in contact with the front surface of the board 111.

[0174] The subject 421 can place part of its right arm and right hand on the upper surface of the right hand placement platform 121, and similarly, can place part of its left arm and left hand on the upper surface of the left hand placement platform 122.

[0175] Even if the measured object 421 comes into contact with the measured object fixture 21, the sensor fixture 22 remains stationary because the measured object fixture 21 does not come into contact with the sensor fixture 22. Therefore, the measuring device 11 can stably measure the sensor 311 mounted on the sensor fixture 22.

[0176] Thus, in this embodiment, the subject fixation body 21 can be used to assist in maintaining the posture of the subject 421.

[0177] In this embodiment, when measuring with the measuring device 11, the measured object 421 does not contact the sensor fixture 22, and the measured object fixture 21 also does not contact the sensor fixture 22.

[0178] Thus, in this embodiment, the subject fixation body 21 and the sensor fixation body 22 are completely separated at the point of contact.

[0179] In addition, when measuring with the measuring device 11, the subject fixation body 21 and the sensor fixation body 22 may sometimes come into contact.

[0180] Here, the chair 411 is not particularly limited. For example, a chair that can adjust the height of the part (seat surface) where the person being measured 421 sits can be used, or a chair whose seat height is fixed at a certain height can be used.

[0181] By using a chair with an adjustable seat height as chair 411, the height relationship between the measured person 421 and the sensor 311 (or the sensor holding part 211) can be adjusted.

[0182] <Measuring apparatus including the measuring chamber>

[0183] Figure 7 This is a diagram showing an example of a measuring device 11 having a measuring chamber 2011 according to the first embodiment.

[0184] exist Figure 7 For ease of explanation, the image shown is similar to... Figure 1 The same XYZ rectangular coordinate system.

[0185] In this embodiment, the measuring chamber 2011 has a cuboid shape, with one of its six faces open.

[0186] The measuring chamber 2011 has: a floor 2021 on the lower side, a top surface 2022 on the upper side, a side wall 2031 on the right side, a side wall 2032 on the left side, and an inner side wall 2033 on the inner side.

[0187] exist Figure 7 In the example, the front opening of the measuring chamber 2011.

[0188] Here, Figure 7 In the example, the ground surface 2021 and the top surface 2022 are surfaces parallel to the XY plane, the two side walls 2031 and 2032 are surfaces parallel to the YZ plane, and the inner side wall 2033 is a surface parallel to the XZ plane, but it is not limited to these.

[0189] Inside the measuring chamber 2011, there are a subject fixation body 21 and a sensor fixation body 22 that constitute the measuring device 11.

[0190] In the measurement chamber 2011, the subject fixation body 21 is positioned in front of the subject, and the sensor fixation body 22 is positioned inside the subject.

[0191] The subject 421 enters the measuring chamber 2011 through the opening. The measuring device 11 is used to measure the subject 421 with the subject fixed body 21 in front of it.

[0192] Here, Figure 7 The illustration of chair 411 is omitted, but the measurement is performed using measuring device 11 with the subject 421 sitting on chair 411.

[0193] Alternatively, as another example, the measuring device 11 can be used to perform the measurement without using a chair 411, with the person being measured 421 standing.

[0194] A plate-shaped shielding member 2111 is provided on a portion of the right-side side wall 2031 of the measuring chamber 2011. The surface of the shielding member 2111 is arranged parallel to the side wall 2031.

[0195] A plate-shaped shielding member 2112 is provided on a portion of the left-side wall surface 2032 of the measuring chamber 2011. The surface of the shielding member 2112 is arranged parallel to the side wall surface 2032.

[0196] Two shielding components 2112 are positioned opposite each other in the left-right direction.

[0197] For example, two shielding components 2111 and 2112 are at least positioned to cover the location of the sensor 311 in the left-right direction. Figure 7 In the example, it is the sensor holding part 211.

[0198] In this embodiment, a magnetic sensor is used as sensor 311, and magnetic screens (magnetic shielding components) are used as two shielding components 2111 and 2112 respectively.

[0199] Alternatively, when using a sensor other than a magnetic sensor as sensor 311, shielding components other than a magnetic shield can also be used as shielding components 2111 and 2112.

[0200] Furthermore, if shielding components 2111 and 2112 are not required, shielding components 2111 and 2112 may be omitted from the measuring chamber 2011.

[0201] The case in which the measured object fixation body 21 and the sensor fixation body 22 constituting the measuring device 11 are fixed in the measuring chamber 2011 will be described.

[0202] In this embodiment, in the measuring device 11, the four protrusions 151 to 154 of the right foot portion A1 of the measured subject fixation body 21 and the four protrusions 251 to 254 of the right foot portion B1 of the sensor fixation body 22 are arranged to contact the side wall surface 2031 on the right side of the measuring chamber 2011.

[0203] Furthermore, in this embodiment, in the measuring device 11, the four protrusions 161 to 164 of the left foot portion A2 of the measured subject fixation body 21 and the four protrusions 261 to 264 of the left foot portion B2 of the sensor fixation body 22 are arranged to contact the side wall surface 2032 on the left side of the measuring chamber 2011.

[0204] Furthermore, the subject fixation 21 and the sensor fixation 22 are positioned within the measurement chamber 2011, for example, using a bracket. That is, the positions of the subject fixation 21 and the sensor fixation 22 within the measurement chamber 2011 are fixed.

[0205] exist Figure 7 In the example, regarding the subject fixation body 21, a bracket 711 is shown that fixes the protrusion 151 of the right foot A1 and the right side wall 2031, and a bracket 713 that fixes the protrusion 153 of the right foot A1 and the right side wall 2031, etc.

[0206] In addition, Figure 7 In the example, regarding the subject fixation body 21, it is shown that a bracket (bracket 911, etc.) is used to fix the two components constituting the right foot A1.

[0207] Here, regarding the fixed body 21 of the measured object, a portion of the right foot A1 is described, but the other portions of the right foot A1 and the left foot A2 are also described in the same way.

[0208] exist Figure 7 In the example, regarding the sensor fixture 22, a bracket 831 is shown that fixes the protrusion 261 of the left foot part B2 and the left side wall 2032, and a bracket 833 that fixes the protrusion 263 of the left foot part B2 and the left side wall 2032, etc.

[0209] In addition, Figure 7 In the example, regarding the sensor fixture 22, it is shown that a bracket (such as bracket 921) is used to fix the two components constituting the left foot B2.

[0210] Here, regarding the sensor holder 22, a portion of the left foot B2 is described, but the other portions of the left foot B2 and the right foot B1 are also described in the same way.

[0211] Figure 8 This is a diagram illustrating an example of the subject fixation body 21 and sensor fixation body 22 in the first embodiment being fixed in the measurement chamber 2011.

[0212] exist Figure 8 In the example, regarding a portion of the left foot B2 of the sensor fixture 22, it will be compared with an example of the way the measuring chamber 2011 is fixed. Figure 7 The example is shown in an enlarged form.

[0213] In this embodiment, a bracket is shown as a fixing member for positioning. However, as other examples of fixing the parts to each other, it is also possible to fix the parts to each other by screws without using a bracket, or by gluing or welding the parts to each other.

[0214] In addition, Figure 7 and Figure 8 In the example shown, the subject fixation body 21 and the sensor fixation body 22 are fixed using the right side wall 2031 and the left side wall 2032 of the measuring chamber 2011. As another example, the measuring device 11 can also be fixed using one or more of the surfaces of the measuring chamber 2011, namely the floor 2021, the top surface 2022 and the inner side wall 2033.

[0215] In addition, the measuring chamber 2011, the subject fixation body 21, and the sensor fixation body 22 can be, for example, a structure that can be installed and removed (separate and combined), or a structure in which the measuring chamber 2011, the subject fixation body 21, and the sensor fixation body 22 are integrally formed and cannot be separated.

[0216] Here, in Figure 7 The example shown illustrates the use of a dedicated room in the shape of a box with an opening as the measurement room 2011. However, the measurement room 2011 can also be a room existing in a typical building, such as a large building. Shielding components can also be installed in this room.

[0217] Furthermore, in this embodiment, as the parts for fixing the subject fixation body 21 and the sensor fixation body 22 to the measurement chamber 2011, protrusions 151-154 and 161-164 are provided on the subject fixation body 21, and protrusions 251-254 and 261-264 are provided on the sensor fixation body 22. Various positions can be used as the positions of each protrusion.

[0218] For example, in the subject fixation body 21, if one or more protrusions are provided on the right foot A1 and one or more protrusions are provided on the left foot A2, these protrusions can be all located in symmetrical positions, or some or all of them can be located in asymmetrical positions. For example, a structure can be adopted in which the protrusions located on the lower side of the right foot A1 and the left foot A2 are arranged, and the protrusions located on the upper side are arranged, with one being symmetrical and the other being asymmetrical.

[0219] Similarly, for example, in the sensor fixture 22, if one or more protrusions are provided on the right foot B1 and one or more protrusions are provided on the left foot B2, these protrusions can be all located in symmetrical positions, or some or all of them can be located in asymmetrical positions. For example, a structure can be adopted in which protrusions are located on the lower side of the right foot B1 and the left foot B2 and protrusions are located on the upper side, one of which is symmetrical and the other is asymmetrical.

[0220] Furthermore, when both the subject fixation body 21 and the sensor fixation body 22 have protrusions, the protrusions of the subject fixation body 21 and the sensor fixation body 22 do not interfere with each other when they are combined (i.e., they avoid colliding at the same position).

[0221] Furthermore, in this embodiment, as a part for fixing the subject fixation body 21 and the sensor fixation body 22 to the measurement chamber 2011, it is shown that the subject fixation body 21 is provided with protrusions 151-154, 161-164, and the sensor fixation body 22 is provided with protrusions 251-254, 261-264. However, as other structural examples, some or all of these protrusions may not be provided.

[0222] Here, in this embodiment, a sensor holding part 211 is provided on the upper part of the sensor holder 22, and the sensor 311 is held by the sensor holding part 211. As another structural example, a structure without the sensor holding part 211 may also be adopted.

[0223] In this structure, for example, one or more sensors can be installed on the upper part of the platform B3 of the sensor holder 22, or the upper part of the platform B3 of the sensor holder 22 and the sensors can be fixed by any fastener (fixture). As such a fastener, for example, screws, fixing straps, single-sided or double-sided tape, face fasteners, or adhesives can be used.

[0224] As described above, in the measurement system 1 of this embodiment, noise originating from the body activity of the subject 421 can be suppressed in the measurement device 11 while ensuring the level of the measurement signal.

[0225] In the measuring device 11 of this embodiment, there are: a subject fixation body 21 for maintaining the posture of the subject 421; and a sensor fixation body 22 for fixing the sensor 311 for detecting the biosignals of the subject 421.

[0226] Furthermore, it has a structure in which the subject fixation body 21 and the sensor fixation body 22 are separate.

[0227] Therefore, in the measuring device 11 of this embodiment, measurement can be performed in a state where the subject 421 is not in contact with the sensor 311 (and the sensor holding part 211), and the body movements of the subject 421 are not transmitted to the sensor 311 (and the sensor holding part 211). Thus, by using the measuring device 11, noise originating from the body movements of the subject 421 can be prevented from being superimposed on the measurement results of the biosignal.

[0228] Furthermore, the measuring device 11 of this embodiment can be used to perform measurements when the distance between the measured object 421 and the sensor 311 is short.

[0229] Furthermore, the measuring device 11 of this embodiment can easily maintain the posture of the subject 421.

[0230] In the measuring device 11 of this embodiment, a sensor holding part 211 for holding the sensor 311 is provided in the sensor fixing body 22.

[0231] In addition, the sensor holding part 211 has a mechanism for holding one or more sensors 311.

[0232] Therefore, the sensor 311 can be easily installed using the measuring device 11 of this embodiment.

[0233] In the measuring device 11 of this embodiment, a plate 111 is provided in the subject fixation body 21 between the subject 421 and the sensor 311.

[0234] Therefore, by using the measuring device 11 of this embodiment, it is possible to prevent the person being measured 421 from coming into contact with the sensor 311 (or the sensor holding part 211). Furthermore, by using the measuring device 11 of this embodiment, the person being measured 421 can be measured in a comfortable posture.

[0235] In the measuring device 11 of this embodiment, the sensor holding part 211 extends from the end of the sensor fixing body 22 (at... Figure 5 In this example, the end on the negative side of the Y-axis protrudes towards one side of the plate 111. Furthermore, the sensor holding part 211 does not contact the plate 111.

[0236] Therefore, by using the measuring device 11 of this embodiment, measurements can be performed with the subject 421 close to the sensor 311, thereby obtaining a high level of biosignal.

[0237] In the measuring device 11 of this embodiment, a hand placement platform (right hand placement platform 121, left hand placement platform 122) for placing the hand of the subject 421 is provided on the subject fixation body 21.

[0238] Therefore, by using the measuring device 11 of this embodiment, the person being measured 421 can place their hand on the hand resting platform during the measurement, which helps the person being measured 421 to accept the measurement in a stable posture.

[0239] In the measuring device 11 of this embodiment, cable holding parts 221 and 222 for holding the cable 331 of the sensor 311 are provided on the sensor fixing body 22.

[0240] Therefore, by using the measuring device 11 of this embodiment, the cable 331 can be placed in the cable holding parts 221, 222, for example, to prevent the cable 331 of the sensor 311 from contacting the feet of the person being measured 421.

[0241] In the measuring device 11 of this embodiment, a positioning fastener (protrusions 151-154, 161-164, 251-254, and 261-264 in this embodiment) is provided in one or both of the subject fixation body 21 and the sensor fixation body 22.

[0242] Therefore, the measuring device 11 of this embodiment can be used to fix the subject fixation body 21 or the sensor fixation body 22 in any location.

[0243] In the measuring device 11 of this embodiment, a measuring chamber 2011 is also provided. One or both of the subject fixation body 21 and the sensor fixation body 22 (in...) Figure 7 In the example, both of them are used), and the positioning fasteners (in this embodiment, protrusions 151-154, protrusions 161-164, protrusions 251-254, and protrusions 261-264) are used to fix one or both of the wall and floor of the measuring chamber 2011. Figure 7 In the example, the side walls 2031 and 2032 are fixed as the wall surface.

[0244] Therefore, by using the measuring device 11 of this embodiment, one or both of the subject fixation body 21 and the sensor fixation body 22 can be fixed in the measuring chamber 2011 by means of a positioning fastener, and misalignment of the positional relationship between one or both of the subject fixation body 21 and the sensor fixation body 22 and the measuring chamber 2011 can be prevented.

[0245] Furthermore, in the measuring device 11 of this embodiment, by using a positioning fastener to fix both the subject fixation body 21 and the sensor fixation body 22 in the measuring chamber 2011, it is possible to prevent misalignment of the positional relationship between the subject fixation body 21 and the sensor fixation body 22, and to perform stable measurements.

[0246] In the measuring device 11 of this embodiment, the sensor 311 is a magnetic sensor.

[0247] Therefore, by using the measuring device 11 of this embodiment, when measuring biosignals using a magnetic sensor, noise originating from the body activity of the subject 421 can be suppressed, while ensuring the level of the measurement signal.

[0248] Here, the measurement results of a typical magnetic sensor are greatly affected by vibration, but in this embodiment, such effects can be suppressed.

[0249] In addition, in this embodiment, as an example of the biosignal of the subject 421, the measurement of a magnetic signal originating from the heart activity of the subject 421 is shown. However, as a biosignal, there is no particular limitation. For example, it can be a signal about the brain, not just the heart. Furthermore, it can be applied not only to magnetic signals but also to electrical signals.

[0250] Furthermore, in this embodiment, the term "measurement" is used, and it can also be replaced by terms such as determination, detection, acquisition, or observation.

[0251] (Second Implementation)

[0252] In this embodiment, refer to Figures 9-10 The same structure will be described in detail. For ease of explanation, some structural parts and their reference numerals have been omitted from some of the illustrations.

[0253] [Measurement System]

[0254] Figure 9 This is a diagram showing a schematic structural example of a measurement system 1001 including a measuring device 1011 according to the second embodiment.

[0255] exist Figure 9 For ease of explanation, the XYZ Cartesian coordinate system is shown as a three-dimensional Cartesian coordinate system. In this embodiment, for ease of explanation, the positive direction of the X-axis is defined as the right, the negative direction of the X-axis as the left, the positive direction of the Y-axis as the inward direction, the negative direction of the Y-axis as the forward direction, the positive direction of the Z-axis as the upward direction, and the negative direction of the Z-axis as the downward direction.

[0256] In the measurement system 1001 of this embodiment, generally speaking, the position of the sensor holding part 1211 of the sensor holder 1022 constituting the measurement device 1011 can be adjusted, which is different from the measurement system 1 of the first embodiment, but the other aspects are the same. Therefore, in this embodiment, detailed descriptions of the similarities with the first embodiment are omitted.

[0257] The measurement system 1001 includes a measuring device 1011, a recorder 1321, a computer 1322, and a cable 1331.

[0258] Here, in Figure 9 In the example shown, one sensor 1311 is installed on the measuring device 1011, but multiple sensors can also be installed on the measuring device 1011.

[0259] In addition, in this embodiment, the recorder 1321, computer 1322, cable 1331 and sensor 1311 are described as external devices (devices) of the measuring device 1011. However, as another example, the measuring device 1011 may include more than one of the recorder 1321, computer 1322, cable 1331 and sensor 1311.

[0260] <Measuring Device>

[0261] Figure 10 This is a diagram showing an example of the structure of the subject fixation body 1021 and the sensor fixation body 1022 that constitute the measuring device 1011 of the second embodiment.

[0262] exist Figure 10 For ease of explanation, the image shown is similar to... Figure 9 The same XYZ rectangular coordinate system.

[0263] Here, in Figure 9 In the image, the state in which the measuring device 1011 is used is shown, showing the state in which the subject fixation body 1021 and the sensor fixation body 1022 are combined.

[0264] On the other hand, Figure 10 In the illustration, for ease of explanation, the subject fixation body 1021 and the sensor fixation body 1022 are shown separately.

[0265] Explain the structural example of the subject fixation body 1021.

[0266] The subject fixation body 1021 includes a right foot A11, a left foot A12, and a platform A13.

[0267] The right foot A11 includes four protrusions 1151 to 1154 that protrude to the right.

[0268] The left foot A12 includes four protrusions 1161 to 1164 that protrude to the left.

[0269] The table A13 includes a board 1111, a right hand placement table 1121, and a left hand placement table 1122.

[0270] Explain the structure of sensor fixture 1022.

[0271] The sensor fixture 1022 includes a right foot B11, a left foot B12, and a platform B13.

[0272] The right foot portion B11 includes four protrusions 1251 to 1254 that protrude to the right.

[0273] The right foot portion B11 includes two protrusions 1231 and 1232 that protrude inward.

[0274] In addition, in this embodiment, these two protrusions 1231 and 1232, without detailed description, can also be used for positioning, etc.

[0275] The left foot portion B12 includes four protrusions 1261–1264 that protrude to the left.

[0276] The platform B13 includes a structural part composed of multiple cuboid components arranged on the upper surface of the right foot B11 and the upper surface of the left foot B12.

[0277] In addition, the platform B13 includes: a position adjustment section 1511 disposed on the upper part of the structure; height adjustment sections 1521 and 1522 disposed on the upper part of the position adjustment section 1511; and a sensor holding section 1211 installed on the height adjustment sections 1521 and 1522.

[0278] In addition, the platform B13 includes two cable retaining parts (cable receiving components) 1221 and 1222 that protrude inward from the structure.

[0279] Here, the structure of the sensor holding part 1211 is the same as that of the sensor holding part 211 in the first embodiment.

[0280] The position adjustment unit 1511 has a plate-like shape, and the plate-like surface is arranged parallel to the upper surface of the platform B13. The position adjustment unit 1511 has a mechanism on the upper side of the platform B13 that can move in the left-right direction (direction P11). This mechanism may, for example, be a track-like mechanism extending in the left-right direction.

[0281] The movement of the position adjustment unit 1511 can be either manually operated by an operator (person) who operates the measuring device 1011, or electrically operated.

[0282] As an example, a structure can also be adopted in which the position adjustment unit 1511 is changed by direct contact between a person and the position adjustment unit 1511.

[0283] As another example, a structure can also be adopted in which a handle or the like is provided on the platform B13 of the sensor fixture 1022, and the position of the position adjustment unit 1511 is changed by a person operating the handle or the like.

[0284] As another example, a structure can also be adopted in which a switch is provided on the platform B13 of the sensor fixture 1022, and the position of the position adjustment unit 1511 is changed by human operation of the switch.

[0285] As another example, a structure can also be adopted in which the computer 1322 is communicatively connected to the position adjustment unit 1511 via wired or wireless means, and the computer 1322 is used to control the movement of the position adjustment unit 1511.

[0286] Alternatively, a structure in which the position adjustment part 1511 and the base part B13 are fixed by threads can be adopted. For example, multiple parts for mounting the position adjustment part 1511 can be provided on the base part B3, and the position of the position adjustment part 1511 can be changed by switching the mounting parts of the position adjustment part 1511 among these multiple parts.

[0287] In this embodiment, as the position adjustment unit 1511 moves, the sensor holding unit 1211 also moves accordingly. This allows adjustment of the left-right position of the sensor holding unit 1211.

[0288] In addition, in this embodiment, the position adjustment unit 1511 has the function of adjusting the position in the left and right directions, but for example, it can have the function of adjusting the position in the depth direction (the direction of the front and the inside), and it can also have both of these functions.

[0289] Height adjustment units 1521 and 1522 are each in the shape of a cuboid, and are arranged such that the long side of the cuboid extends upward from the face of position adjustment unit 1511.

[0290] The right-side height adjustment section 1521 and the left-side height adjustment section 1522 are arranged at a predetermined interval in the left-right direction. Furthermore, a sensor holding section 1211 is installed between the right-side height adjustment section 1521 and the left-side height adjustment section 1522.

[0291] The height adjustment units 1521 and 1522 may also have a mechanism that allows the installed sensor holding unit 1211 to move in the vertical direction (direction P12).

[0292] The movement of the sensor holding unit 1211 using the height adjustment units 1521 and 1522 can be either manually operated by an operator (person) operating the measuring device 1011, or electrically operated.

[0293] As an example, a structure can also be adopted in which the position of the sensor holding unit 1211 changes by having a person directly contact the height adjustment units 1521 and 1522.

[0294] As another example, a structure can also be adopted in which a switch is provided on the platform B13 of the sensor fixture 1022, and the position of the sensor holding part 1211 is changed by the height adjustment parts 1521 and 1522 when the switch is operated by a person.

[0295] As another example, a structure can also be adopted in which the computer 1322 is communicatively connected to the height adjustment units 1521, 1522 via wired or wireless means, and the computer 1322 controls the movement of the sensor holding unit 1211 based on the height adjustment units 1521, 1522.

[0296] In this embodiment, the sensor holding unit 1211 is moved by utilizing the functions of the height adjustment units 1521 and 1522. This allows for adjustment of the vertical (height) position of the sensor holding unit 1211.

[0297] <Combination of subject fixation and sensor fixation>

[0298] In this embodiment, the subject fixation body 1021 and the sensor fixation body 1022 are combined in the same way as in the first embodiment to form a measuring device 1011.

[0299] exist Figure 10 In the example, regarding sensor fixture 1022, it is shown that... Figure 2 The components Q1 and Q2 shown are the same as the components Q11 and Q12.

[0300] In addition, Figure 9 In one example, a structural example is shown where, after the subject fixation body 1021 and the sensor fixation body 1022 are combined, a component Q111 is embedded at the lower left end.

[0301] In addition, component Q111 may or may not be provided in the measuring device 1011.

[0302] In this embodiment, in the measuring device 1011, no part of the measured object fixation body 1021 and the sensor fixation body 1022 is in contact with each other.

[0303] As described above, the measurement system 1001 of this embodiment and the measurement device 1011 are able to suppress noise originating from the body activity of the subject 421 while ensuring the level of the measurement signal.

[0304] In the measuring device 1011 of this embodiment, the sensor holder 22 is provided with: height adjustment parts 1521 and 1522 for adjusting the height of the sensor holding part 211; and position adjustment part 1511 for adjusting the position of the sensor holding part 211 in a direction other than the height (in this embodiment, the left and right direction).

[0305] Therefore, by using the measuring device 1011 of this embodiment, for example, the height of the sensor 311 and its position other than height can be adjusted according to the physique of the subject 421 or the location where the target biosignal is generated (e.g., the heart).

[0306] (Third Implementation)

[0307] In this embodiment, a method for implementing the first embodiment is shown. Figure 1 The measurement device 11 of the measurement system 1 shown is a structural example of a measurement device that further mounts a reference sensor. Furthermore, the reference sensor can be, for example, an external device (device) of the measurement device, or it can be included within the measurement device.

[0308] In this embodiment, for ease of explanation, the same reference numerals are used to describe the same structural parts as in the first embodiment.

[0309] [Measurement System]

[0310] Figure 11 This is a diagram showing a schematic structural example of a measurement system 3001 including the measurement device 3011 of the third embodiment.

[0311] exist Figure 11 For ease of explanation, the XYZ Cartesian coordinate system is shown as a three-dimensional Cartesian coordinate system. In this embodiment, for ease of explanation, it is used in conjunction with... Figure 1 Similarly, the positive direction of the X-axis is taken as the right, the negative direction of the X-axis as the left, the positive direction of the Y-axis as the inward direction, the negative direction of the Y-axis as the forward direction, the positive direction of the Z-axis as the upward direction, and the negative direction of the Z-axis as the downward direction.

[0312] The measurement system 3001 includes a measuring device 3011, a recorder 321, a computer 322, and a cable 331.

[0313] Here, the structure of the recorder 321, the computer 322, and the cable 331, roughly speaking, is similar to... Figure 1 Similar to the previous example, in this embodiment, the detection signal (reference signal) of the reference sensor is also processed.

[0314] <Measuring Device>

[0315] exist Figure 11 The image shows the combined state of the subject fixation body 21 and the sensor fixation body 3022 when the measuring device 3011 is used.

[0316] The structure of the subject fixation body 21 and Figure 1 Same as shown.

[0317] The sensor holder 3022 includes a right foot B1, a left foot B2, a platform B23, and reference sensor holding parts 3211 and 3212 for holding the reference sensor.

[0318] Alternatively, the reference sensor holding part may also be referred to as a reference sensor holding body.

[0319] The structure of the sensor fixture 3022, roughly speaking, is relative to... Figure 1 and Figure 2 The structure of the sensor holder 22 shown is configured to be more advanced than that of the sensor holder 22 shown. Figure 2 The stage B23, which extends to the left and right of the stage B3 shown, and the reference sensor holding parts 3211 and 3212 disposed above the stage B23 are different in this respect, but the same in other respects.

[0320] The sensor fixture 3022 has a support portion 3121 on the right side and a support portion 3122 on the left side of the platform B23.

[0321] The support portion 3121 on the right side has a shape that supports the reference sensor holding portion 3211 disposed on its upper part on the right side. In this embodiment, the support portion 3121 has a planar shape that is perpendicular to the vertical direction, but other shapes may also be used.

[0322] The reference sensor holding part 3211 on the right side has a cuboid shape. In this embodiment, the reference sensor holding part 3211 is arranged such that each face of its cuboid shape faces the upper side, lower side, left side, right side, front side, and inner side, respectively. Furthermore, in this embodiment, the upper and lower faces are square faces, and the other faces are rectangular faces whose vertical direction is the length direction.

[0323] The reference sensor holding part 3211 on the right side has multiple holes on its inner surface for mounting a reference sensor.

[0324] exist Figure 11 In the example, on this surface, there are 4 holes arranged at a specified interval in the vertical direction and 2 holes arranged at a specified interval in the horizontal direction, for a total of 8 holes. For ease of illustration, only one hole 3311 is labeled with the reference numeral.

[0325] In addition, Figure 11 In the example shown, only one reference sensor 3411 is installed by inserting it into the hole 3311. However, reference sensors can be installed in any number of holes.

[0326] Furthermore, the shape of the reference sensor holding part 3211, the mechanism for mounting each reference sensor (in this embodiment, the hole part), the location of the mechanism, and the number of the mechanism can be used in any manner.

[0327] For example, in this embodiment, the reference sensor holding part 3211 is a structure that can hold multiple reference sensors, while as another example, a structure that can only hold one reference sensor may also be adopted.

[0328] Furthermore, in this embodiment, the reference sensor holding part 3211 is a structure that allows the reference sensor to be attached and detached. As another example, the reference sensor holding part 3211 and the reference sensor can also be integrally formed.

[0329] In this embodiment, the structures of the left-side support portion 3122, the left-side reference sensor holding portion 3212, and the hole portion 3312 are each symmetrical to the structures of the right-side support portion 3121, the right-side reference sensor holding portion 3211, and the hole portion 3311. Alternatively, a structure that is not symmetrical on the right and left sides can also be used.

[0330] As described above, in the measurement system 3001 of this embodiment, the measurement device 3011 is able to suppress noise originating from the body activity of the subject while ensuring the level of the measurement signal.

[0331] In the measuring device 3011 of this embodiment, for example, one or more reference sensors that acquire environmental signals without interest signals (biological signals in this embodiment) are configured using reference sensor holding units 3211 and 3212. This allows for the removal of environmental noise, thereby improving the noise suppression effect.

[0332] Here, in the measuring device 3011 of this embodiment, in order to suppress noise superimposed on the biological signal detected by the measuring sensor, reference signals are measured (detected) using each reference sensor.

[0333] The reference signal is used, for example, to remove noise components contained in the biological signal detected by the measurement sensor (in this embodiment, the same sensor 311 as in the first embodiment). As an example, when detecting a biological signal using the measurement sensor, the reference sensor detects a signal originating from the environment other than the organism as the reference signal. As an example, when the magnetic signal originating from the organism is the signal of interest, the magnetic signal originating from the environmental magnetic field can also be used as the reference signal.

[0334] In this embodiment, the computational processing of the biological signal detected by the measurement sensor and the reference signal detected by the reference sensor is not particularly limited, and any computational processing can be performed.

[0335] Such computational processing is performed, for example, by a computing device such as a computer (computer 322 in this embodiment).

[0336] In the measuring device 3011 of this embodiment, for example, in order to reduce environmental noise, a reference sensor can be used to reduce environmental noise through signal processing such as adaptive noise cancellation (ANC).

[0337] For example, each reference sensor can also send measurement results to recorder 321 via wired cable or wirelessly, but in Figure 11 Illustrations are omitted in the example. In this case, it is possible that the recorder 321 stores the information and the computer 322 processes the information.

[0338] Here, in this embodiment, an example is shown of a structure in which the sensor holder 3022, the support portions 3121, 3122 and the reference sensor holding portions 3211, 3212 are integrated, but it is not limited to this and other structures may be used.

[0339] For example, in this embodiment, the structure of the first embodiment is shown to be applied with respect to the structure of the reference sensor, but the structure of the second embodiment can also be applied with respect to the structure of the reference sensor.

[0340] (Fourth implementation)

[0341] In this embodiment, a method for implementing the first embodiment is shown. Figure 1 The measurement device 11 of the measurement system 1 shown is a structural example of a measurement device that further mounts a reference sensor. Furthermore, the reference sensor can be, for example, an external device (device) of the measurement device, or it can be included within the measurement device.

[0342] In this embodiment, for ease of explanation, the same reference numerals are used to describe the same structural parts as in the first embodiment.

[0343] [Measurement System]

[0344] Figure 12 This is a diagram showing a schematic structural example of a measurement system 4001 including the measuring device 4011 of the fourth embodiment.

[0345] exist Figure 12 For ease of explanation, the XYZ Cartesian coordinate system is shown as a three-dimensional Cartesian coordinate system. In this embodiment, for ease of explanation, and Figure 1 Similarly, the positive direction of the X-axis is considered to the right, the negative direction of the X-axis is considered to the left, the positive direction of the Y-axis is considered to the inside, the negative direction of the Y-axis is considered to the front, the positive direction of the Z-axis is considered to the top, and the negative direction of the Z-axis is considered to the bottom.

[0346] The measurement system 4001 includes a measuring device 4011, a recorder 321, a computer 322, and a cable 331.

[0347] Here, the structure of the recorder 321, the computer 322, and the cable 331, roughly speaking, is similar to... Figure 1 Similar to the previous example, in this embodiment, the detection signal (reference signal) of the reference sensor is also processed.

[0348] <Measuring Device>

[0349] The measuring device 4011 includes a subject fixation body 21, a sensor fixation body 22, a reference sensor support part 4111 and a reference sensor holding part 4211 on the right side, and a reference sensor support part 4112 and a reference sensor holding part 4212 on the left side.

[0350] Alternatively, the reference sensor holding part may also be referred to as a reference sensor holding body.

[0351] exist Figure 12 In the diagram, the combined state of the subject fixation body 21 and the sensor fixation body 22 is shown as the state when using the measuring device 4011.

[0352] The structure of the subject fixation body 21 and the sensor fixation body 22 are similar to Figure 1 Same as shown.

[0353] In addition, Figure 12 In the diagram, as shown when the measuring device 4011 is used, the reference sensor support 4111 and reference sensor holding part 4211 on the right and the reference sensor support 4112 and reference sensor holding part 4212 on the left are arranged near the subject fixation body 21 and the sensor fixation body 22.

[0354] exist Figure 12 In the example, the reference sensor support 4111 and reference sensor holding part 4211 on the right and the reference sensor support 4112 and reference sensor holding part 4212 on the left are provided without contacting the subject fixation body 21 and the sensor fixation body 22.

[0355] The reference sensor support 4111 on the right side has the shape of supporting the reference sensor holding part 4211 on the right side disposed on its upper part.

[0356] In this embodiment, the reference sensor support portion 4111 is configured to have a base portion disposed below it and a rod-shaped portion extending upward from the base portion, supporting the reference sensor holding portion 4211 disposed above the rod-shaped portion; however, other structures may also be used.

[0357] The reference sensor holding part 4211 on the right side has a cuboid shape. In this embodiment, the reference sensor holding part 4211 is arranged such that each face of the cuboid faces the top, bottom, left, right, front, and inside sides, respectively. Furthermore, in this embodiment, the top and bottom faces are square faces, and the other faces are rectangular faces whose vertical direction is the length direction (long side direction).

[0358] The reference sensor holding part 4211 on the right side has multiple holes on its inner side for mounting a reference sensor.

[0359] exist Figure 12 In the example, on this surface, there are 4 holes arranged at a specified interval in the vertical direction and 2 holes arranged at a specified interval in the horizontal direction, for a total of 8 holes. For ease of illustration, only one hole 4311 is labeled with the reference numeral.

[0360] In addition, Figure 12 In the example shown, only one reference sensor 4411 is installed by inserting it into the hole 4311. However, reference sensors can be installed in any number of holes.

[0361] Furthermore, the shape of the reference sensor holding part 4211, the mechanism for mounting each reference sensor (in this embodiment, the hole part), the location of the mechanism, and the number of the mechanism can be used in any manner.

[0362] For example, in this embodiment, the reference sensor holding part 4211 is a structure that can hold multiple reference sensors, while as another example, a structure that can only hold one reference sensor may also be adopted.

[0363] Furthermore, in this embodiment, the reference sensor holding part 4211 is a structure that allows the reference sensor to be attached and detached. As another example, the reference sensor holding part 4211 and the reference sensor can also be integrally formed.

[0364] Furthermore, in this embodiment, the reference sensor support 4111 and the reference sensor holding part 4211 can be either detachable from each other or integral.

[0365] In this embodiment, the structures of the left-side reference sensor support 4112, the left-side reference sensor holder 4212, and the hole 4312 are symmetrical about left and right compared to the structures of the right-side reference sensor support 4111, the right-side reference sensor holder 4211, and the hole 4311. Alternatively, a structure that is not symmetrical about left and right on the right side may also be adopted.

[0366] As described above, in the measurement system 4001 of this embodiment, the measurement device 4011 is able to suppress noise originating from the body activity of the person being measured, while ensuring the level of the measurement signal.

[0367] In the measuring device 4011 of this embodiment, for example, one or more reference sensors for acquiring environmental signals that do not contain interest signals (biological signals in this embodiment) can be configured through reference sensor holding units 4211 and 4212, thereby enabling the removal of environmental noise and improving the noise suppression effect.

[0368] Here, in the measuring device 4011 of this embodiment, reference signals are measured (detected) using various reference sensors in order to suppress noise superimposed on the biological signals detected by the measuring sensors.

[0369] The reference signal is used, for example, to remove noise components contained in the biological signal detected by the measurement sensor (in this embodiment, the same sensor 311 as in the first embodiment). As an example, when detecting a biological signal using the measurement sensor, the reference sensor detects signals originating from the environment other than the organism as a reference signal. As an example, when the magnetic signal originating from the organism is the signal of interest, the magnetic signal originating from the environmental magnetic field may also be used as the reference signal.

[0370] In this embodiment, the computational processing performed using the biosignal detected by the measurement sensor and the reference signal detected by the reference sensor is not particularly limited, and any computational processing can be performed.

[0371] Such computational processing is performed, for example, by a computing device such as a computer (computer 322 in this embodiment).

[0372] In the measuring device 4011 of this embodiment, for example, in order to reduce environmental noise, a reference sensor can be used to reduce environmental noise through signal processing such as adaptive noise cancellation (ANC).

[0373] For example, each reference sensor can also send measurement results to recorder 321 via wired cable or wirelessly, but in Figure 12 Illustrations are omitted in the example. In this case, it can be configured such that recorder 321 stores the information and computer 322 processes the information.

[0374] Here, in this embodiment, an example is shown where the reference sensor support portions 4111, 4112 and the reference sensor holding portions 4211, 4212 are separately provided with respect to the sensor fixture 22. However, this is not a limitation and other structures may be used.

[0375] For example, in this embodiment, the structure of the first embodiment is shown to be applied with respect to the structure of the reference sensor, but the structure of the second embodiment can also be applied with respect to the structure of the reference sensor.

[0376] Alternatively, the program used to implement the function of any structural part in any of the devices described above can be recorded on a computer-readable recording medium, allowing the computer system to read and execute the program. Furthermore, the term "computer system" here includes hardware such as an operating system or peripheral devices. Additionally, "computer-readable recording medium" refers to storage devices such as floppy disks, optical disks, ROMs, CDs (Compact Discs), ROMs (Read Only Memory), and hard disks built into the computer system. Further, "computer-readable recording medium" also includes media that retain programs for a certain period of time, such as volatile memory within a server or a computer system acting as a client, when transmitting programs via networks such as the Internet or communication lines such as telephone lines. This volatile memory can, for example, be RAM (Random Access Memory). The recording medium can also be a non-transitory recording medium.

[0377] Furthermore, the aforementioned program can also be transmitted from a computer system storing the program in a storage device or similar device to other computer systems via a transmission medium, or via transmission waves in the transmission medium. Here, the "transmission medium" for transmitting the program refers to a medium with the function of transmitting information, such as a network like the Internet or a communication line like a telephone line.

[0378] Furthermore, the program described above can also be a part of a program used to implement the functions described above. Further, the program described above can also be a so-called difference file, capable of implementing the functions described above in combination with programs already recorded in the computer system. A difference file can also be called a difference program.

[0379] Furthermore, the functions of any structural component in any of the devices described above can also be implemented by a processor. For example, each process in the embodiments can also be implemented by a processor that operates based on program information and a computer-readable recording medium that stores program information. Here, the processor can implement the functions of each component either by individual hard disks or by an integrated hard disk. For example, the processor may include a hard disk that includes at least one of circuits for processing digital signals and circuits for processing analog signals. For example, the processor may also be constructed using one or more circuit devices mounted on a circuit board, or one or more circuit elements, or both. As circuit devices, ICs (Integrated Circuits) or resistors or capacitors may be used as circuit elements.

[0380] Here, the processor can be, for example, a CPU. However, the processor is not limited to a CPU; for example, various processors such as GPUs (Graphics Processing Units) or DSPs (Digital Signal Processors) can also be used. Furthermore, the processor can also be, for example, a hard disk drive circuit utilizing an ASIC (Application Specific Integrated Circuit). Furthermore, the processor can be, for example, composed of multiple CPUs, or it can be composed of hard disk drives utilizing multiple ASICs. Furthermore, the processor can also be, for example, composed of a combination of multiple CPUs and hard disk drives utilizing multiple ASICs. In addition, the processor can also include one or more of the following: amplifier circuits or filter circuits for processing analog signals.

[0381] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the specific structure is not limited to this embodiment and also includes designs that do not depart from the scope of the present invention.

[0382] [Postscript]

[0383] Represented as (Structure Example 1) to (Structure Example 12).

[0384] (Structure Example 1)

[0385] A measuring device, characterized in that it comprises:

[0386] First fixed body;

[0387] A sensor fixation body that immobilizes a sensor for detecting biological signals; and

[0388] The aforementioned sensors,

[0389] It has a structure in which the first fixing body and the sensor fixing body are separate.

[0390] (Structure Example 2)

[0391] The measuring device described in (Structural Example 1) is characterized in that:

[0392] The aforementioned sensor holder is provided with a sensor holding part for holding the sensor.

[0393] The aforementioned sensor holding section has a mechanism for holding one or more of the aforementioned sensors.

[0394] (Structure Example 3)

[0395] The measuring device described in (Structural Example 1) or (Structural Example 2) is characterized in that:

[0396] The first fixing body is provided with a plate positioned at a location corresponding to the sensor.

[0397] Here, the plate is positioned between the measured object and the sensor during measurement.

[0398] (Structure Example 4)

[0399] The measuring device described in (Structural Example 2) is characterized in that:

[0400] The first fixing body is provided with a plate positioned corresponding to the sensor.

[0401] The aforementioned sensor holding part protrudes from the end of the aforementioned sensor fixing body toward one side of the aforementioned plate.

[0402] The sensor holding part mentioned above does not contact the plate mentioned above.

[0403] (Structure Example 5)

[0404] The measuring device described in (Structural Example 2) or (Structural Example 4) is characterized in that:

[0405] The aforementioned sensor holder is provided with: a height adjustment part for adjusting the height of the aforementioned sensor holding part; and a position adjustment part for adjusting the position of the aforementioned sensor holding part in a direction other than the height.

[0406] (Structure Example 6)

[0407] The measuring device described in any one of (Structural Examples 1) to (Structural Examples 5) is characterized in that:

[0408] A platform is provided above the first fixed body mentioned above.

[0409] Here, for example, the table is a hand resting table for placing the hand of the person being measured.

[0410] (Structure Example 7)

[0411] The measuring device described in any one of (Structural Examples 1) to (Structural Examples 6) is characterized in that:

[0412] The aforementioned sensor fixture is provided with a cable holding part for holding the cable of the aforementioned sensor.

[0413] (Structure Example 8)

[0414] The measuring device described in any one of (Structural Examples 1) to (Structural Examples 7) is characterized in that:

[0415] One or both of the first fixing body and the sensor fixing body mentioned above are provided with positioning fixing members.

[0416] (Structure Example 9)

[0417] The measuring device described in (Structural Example 8) is characterized in that:

[0418] It also includes a measuring room,

[0419] One or both of the first fixing body and the sensor fixing body are fixed to one or both of the wall and the floor of the measuring chamber by the positioning fixing member.

[0420] (Structure Example 10)

[0421] The measuring device described in any one of (Structural Examples 1) to (Structural Examples 9) is characterized in that:

[0422] The aforementioned sensor is a magnetic sensor.

[0423] (Structure Example 11)

[0424] The measuring device described in any one of (Structural Examples 1) to (Structural Examples 10) is characterized in that:

[0425] The first fixation body mentioned above is a fixation body for maintaining the posture of the subject being measured, and the sensor mentioned above is a sensor used to detect the aforementioned biosignals of the subject being measured.

[0426] (Structure Example 12)

[0427] The measuring device according to any one of (Structural Examples 1) to (Structural Examples 11) is characterized in that it comprises:

[0428] A reference sensor for detecting a reference signal in order to suppress noise superimposed on the biosignal detected by the aforementioned sensor; and

[0429] The reference sensor holding section maintains the aforementioned reference sensor.

Claims

1. A measuring device, characterized in that, include: First fixed body; A sensor fixture that holds a sensor for detecting biological signals in place; The sensor; and The sensor holding part holds the sensor in the sensor holder. It has a structure in which the first fixing body is separate from the sensor fixing body. The first fixing body includes a right foot part, a left foot part, and a platform part. The platform is disposed on the upper surface of the right foot and the upper surface of the left foot. The platform includes: an upper plate disposed in the center of the platform, a right hand rest disposed on the upper right side of the platform, and a left hand rest disposed on the upper left side of the platform. The plate is positioned corresponding to the sensor. The plate includes a frame with rectangular surfaces and a thin-film component disposed on the surfaces of the frame. With the first fixing body and the sensor fixing body combined, the front side of the sensor holding part is positioned opposite the inner side of the plate.

2. The measuring device as described in claim 1, characterized in that: The sensor holding part has a mechanism for holding one or more of the sensors.

3. The measuring device as described in claim 2, characterized in that: The sensor holding part protrudes from one end of the sensor fixing body toward one side of the plate. The sensor holding part does not contact the plate.

4. The measuring device according to any one of claims 1 to 3, characterized in that: The sensor holder is provided with: a height adjustment part for adjusting the height of the sensor holding part; and a position adjustment part for adjusting the position of the sensor holding part in a direction other than the height.

5. The measuring device as described in claim 1 or 2, characterized in that: The sensor holder is provided with a cable holding part for holding the cable of the sensor.

6. The measuring device as described in claim 1 or 2, characterized in that: One or both of the first fixing body and the sensor fixing body are provided with positioning fasteners.

7. The measuring device as described in claim 6, characterized in that: It also includes a measuring room, One or both of the first fixing body and the sensor fixing body are fixed to one or both of the wall and the floor of the measuring chamber by the positioning fixing member.

8. The measuring device as described in claim 1 or 2, characterized in that: The sensor is a magnetic sensor.

9. The measuring device as described in claim 1 or 2, characterized in that: The first fixation body is a subject fixation body that maintains the posture of the subject being measured. The sensor is used to detect the biosignals of the person being measured.

10. The measuring device as described in claim 1 or 2, characterized in that, include: A reference sensor for detecting a reference signal in order to suppress noise superimposed on the biological signal detected by the sensor; and The reference sensor holding part holds the reference sensor.

Images