JP2014025857A - Device using spatial coordinate of moving body connected by cord - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of easily measuring positions and angles of respective regions of a human body.SOLUTION: There is provided a device including: a position sensor which connects at least one reference point and a moving body to each other by a cord, and acquires positioning data for finding spatial coordinates of the moving body; a sampling unit which periodically calculates spatial coordinates of the moving body in sub-second units using the positioning data, and continuously outputs coordinate data on the moving body; a switch for capturing data pieces of the continuously output coordinate data on the moving body; and a memory which stores a plurality of captured coordinate data pieces. Various data on respective regions of the human body, for example, lengths, angles, etc., can be easily measured using the plurality of captured coordinate data pieces.

Description

  The present invention relates to an apparatus suitable for measuring the movement of a human body using spatial coordinates of a moving body connected by a string.

  In Patent Document 1, a flat plate having a passage hole penetrating at a known point whose position is known in advance, a position specifying device that specifies a position in a three-dimensional space, one end of the position specifying device that is fixed to the other end, and the other end A three-dimensional structure comprising: a string passing through a through hole penetrating the flat plate; a weight attached to the other end of the string; and a rotational speed sensor mechanism for converting the linear displacement of the string into a rotational displacement amount and measuring it. A position specifying device is described.

  In Patent Document 2, for example, when a moving body is grasped by a human hand and moved to an appropriate position in a three-dimensional space, an electric wire is pulled out from the winding drum along with the movement of the moving body. Is detected by the rotary encoder, and at the same time, the movable frame is oscillated along the direction in which the moving body is positioned, and each oscillating angle thereof is detected by the rotary encoder. An apparatus for calculating coordinates in a three-dimensional space is described.

JP 2000-46540 A JP 05-296757 A

  In fields such as physical therapy and low back pain research, it is required to measure the movement of each part of the human body. Currently, when it is necessary to measure the angle of the human body part, a method is adopted in which an angle measuring instrument such as the University of Tokyo, Mr. Meltgen, or Jinchun is applied to the human body part and the angle displayed on the protractor is read. However, depending on the subject, it is difficult to take a posture suitable for applying the angle measuring device, or the angle measured by the applying method of the angle measuring device changes and it is not possible to acquire a highly accurate value. Therefore, there is a need for an apparatus that can easily measure the position and movement of a human body part.

  In one embodiment of the present invention, at least one reference point and a moving body are connected with a string, and a position sensor that obtains positioning data for which the spatial coordinates of the moving body are obtained, and the positioning data are periodically used in sub-second units. A sampling unit that calculates the spatial coordinates of the mobile object and outputs the coordinate data of the mobile object continuously, a switch that captures a data piece of the coordinate data of the mobile object that is continuously output, and a plurality of captured And a memory for storing the coordinate data pieces.

  In this device, since the moving body is connected by a tangible object such as a string (string, string), basically, the spatial position of the moving body is obtained by detecting the length of the string. Therefore, it is not necessary to obtain the length or the amount of movement by an indirect or complicated method, and the length of the string is used for subsecond units, for example, about 1 to 100 milliseconds, and further, about 1 to 10 milliseconds The position coordinates can be calculated with. Therefore, the sampling unit can calculate one data piece of coordinates in sub-second units, and can continue (continuously) output them as coordinate data, and a piece (coordinate data) with coordinate data continuously output by the switch. By selecting (piece), the position (spatial coordinates) of the moving body can be instantly stored in the memory regardless of whether the moving body is moving or stationary.

  For this reason, the user can acquire the spatial coordinates of the moving object at a desired time regardless of the movement of the moving object. For example, the spatial coordinates of the human body part can be stored in the memory simply by capturing the coordinate data piece with the switch while moving the mobile body together with the human body part by placing the mobile body on or contacting the human body part. Using this, the position and angle of the human body part can be calculated.

  The apparatus preferably includes a human body measurement unit that outputs a human body shape measurement result based on a plurality of coordinate data pieces stored in a memory. Using the captured spatial coordinates, it is possible to easily and accurately measure information related to the shape of the human body, such as height, sitting height, shoulder width, and bending angle of the joint. For this reason, it is not necessary to apply an angle measuring device to a human body part, it is not necessary to make a subject take an unreasonable posture for measurement, and an accurate value can be acquired even if it is not an expert.

  This human body measurement unit preferably includes a function of determining the distance between the first coordinate data piece and the second coordinate data piece as the circumference of the part of the human body. The positioning data output from the position sensor includes string length information. Therefore, in this apparatus, length information can be extracted from the coordinate data piece and converted into data such as a circumference that is difficult to calculate from two spatial coordinates, for example, arm circumference and waist circumference. Not only the circumferential length but also a non-linear length such as a length on an arc or a curved surface can be measured in the same manner.

  The anthropometric unit includes a first part specified by the third coordinate data piece and a fourth coordinate data piece, a second part specified by the fifth coordinate data piece, and a sixth coordinate data piece. It is preferable that the function of outputting the angle of the 3rd site | part specified by is included. Even when the position of the apex between the first part and the second part cannot be indicated by the moving body, the angle formed by the first part and the second part can be acquired.

  When the position of the torso part is specified by a plurality of coordinate data pieces, the human body measurement unit automatically determines a part indicated by the subsequent coordinate data piece as a specific part of the human body based on the position of the torso part. It preferably includes a function. Since the relative position of the part (measurement target part) indicated by the subsequent coordinate data piece with respect to the body part is known, it is possible to automatically determine which part of the human body the measurement target part is, and the name of the measurement target part It is possible to reduce the work that the user inputs.

  An example of the position sensor includes a plurality of strings that connect at least three reference points at different positions and the moving body, and at least three first points that detect the lengths of the strings that connect the at least three reference points and the moving body, respectively. Sensor. The spatial coordinates can be obtained from the distances (lengths) between the three reference points whose position information is known in advance and the moving object.

  Other examples of this position sensor include a first sensor that detects the length of the first string connecting the reference point and the moving body, and a second sensor that detects the two-direction angles of the first string, respectively. Sensor. Spatial coordinates can be obtained from the polar coordinates of the moving object.

  An example of the moving body is a ring shape in which a string is attached at a first position, and a pointer such as a protrusion is attached at a second position opposite to the first position. On the other hand, it is desirable to include a function of outputting, as coordinate data, a position extended by the length of the moving body in the direction of the first position. Since the moving body can be put on the finger and the measurement site can be indicated by the pointer located on the opposite side of the string, the measurement can be performed stably.

  One of the other aspects of the present invention is to use a position sensor that connects at least one reference point and a moving body with a string and obtains positioning data for which the spatial coordinates of the moving body are obtained, and uses the positioning data to This is a device having a sampling unit that periodically calculates the spatial coordinates of the moving body in units of seconds and continuously outputs the coordinate data of the moving body.

FIG. 1A is a diagram showing an outline of the appearance of a human body measuring device, and FIG. The block diagram which shows the structure of a human body measuring apparatus. FIG. 3A is a diagram illustrating an example of measuring a human body, and FIG. 3B is a diagram illustrating another example of measuring a human body. The figure which shows the example which measures an arm periphery. The figure which shows the example which measures the position of each site | part around a trunk | drum. The figure which shows the example from which a human body measuring apparatus differs.

  1A and 1B show an outline of a human body measuring apparatus. FIG. 1A shows the external appearance of the human body measuring device 1, and FIG. 1B shows the schematic configuration inside the human body measuring device 1 in a watermarked state. This human body measuring device 1 has a pointer 20 connected to three reference points 5a, 5b and 5c by three strings 10a, 10b and 10c, respectively, and acquires the spatial coordinates of the pointer 20 which is a moving body. It is a device that measures each part of the human body and their movement.

  The human body measuring apparatus 1 is a rectangular parallelepiped as a whole, and includes a position sensor 2 including a measurement reference plane 2a on which three reference points 5a to 5c are arranged, and coordinates output from a sampling unit 45 built in the position sensor 2. And an analysis unit 30 that performs various processes using the data φ1. In this apparatus 1, a tablet-type personal computer 3 (hereinafter referred to as a PC) is used, and an analysis unit 30 is realized by computer resources (CPU, memory, etc.) and software resources (programs, program products) of the PC 3. Further, the PC 3 captures a part (data piece) φ10 of the coordinate data φ1 continuously sent from the position sensor 2 by a capturing signal φ2 supplied from the switch (external switch) 4, And a memory 39 for storing the captured coordinate data piece φ10. The PC 3 is mounted on the upper surface 2b of the position sensor 2, but the installation position of the PC 3 is not limited to this, and may be built in the position sensor 2, and the PC 3 and the position sensor 2 are connected wirelessly. Also good. Note that the PC 3 may not be a tablet-type personal computer, but may be a notebook-type or desktop-type personal computer. Further, it may be of a type that connects to a server via the Internet or the like, or may be realized by a chip such as an LSI.

  The measurement reference plane 2a of the position sensor 2 includes three different reference points 5a to 5c provided at positions that are not linearly arranged, that is, at the positions of the respective vertices of the triangle. In this position sensor 2, the three reference points 5a to 5c are respectively arranged at the positions of the vertices of the equilateral triangle, and for example, the distance from the center of the equilateral triangle is 25 cm. Each of the reference points 5a to 5c is provided with a hole 7 through which a string (string, string, tex) 10a to 10c passes, and one end (tip) 18 of each of the strings 10a to 10c is united to be a moving body. It is attached to a certain pointer 20.

  The position sensor 2 acquires the lengths L1, L2 and L3 (see FIG. 2) from the tip 18 of each of the strings 10a to 10c to the reference points 5a to 5c, as schematically shown in FIG. Measurement units (measuring units) 11a, 11b and 11c and a data processing unit 40 are included. The data processing unit 40 is realized by an LSI or a microcomputer, and uses the lengths L1 to L3 as the positioning data φ9 of the pointer 20 to periodically calculate the spatial coordinates of the moving body 20 in subsecond units and continuously ( It includes a function as a sampling unit 45 that continuously outputs coordinate data φ1 of the moving body. The data processing unit 40 further receives a function 44 for receiving the capturing signal φ2 supplied from the external switch 4, and the coordinate data φ1 and the capturing signal φ2 via the USB interface 3b through the analysis unit 30 (PC3 in this example). And a communication function 49 to be provided.

  Any external switch 4 may be used as long as it can supply the capturing signal φ2 to the data processing unit 40 through an appropriate path. In this example, a handy switch 4a connected by a wire 4b is employed. The external switch 4 may be connected wirelessly or may supply the capturing signal φ2 directly to the analysis unit 30.

  Each of the distance measuring units 11a to 11c has the same configuration, and a pulley (reel, coil) 12 wound with the end opposite to the tip 18 of each of the strings 10a to 10c connected thereto, and a constant winding around the pulley 12 A tension controller 13 that supplies a take-up tension and an encoder unit 17 that detects the amount of rotation (rotation angle and number of rotations) of the pulley 12 are included. In this example, the tension controller 13 includes a wire 15 connected to the shaft 14 of the pulley 12 and a low-load spring 16 wound in a coil shape that applies a certain tension to the wire 15.

  As the encoder unit 17, a potentiometer connected to the shaft 14 is adopted, and voltage signals are supplied to the sampling unit 45 as outputs (length, distance) L1 to L3 of the distance measuring units 11a to 11c. The distance measuring units 11a to 11c and the pointer 20 are physically (mechanically) connected to each other by the strings 10a to 10c, and the tension controller 13 does not cause slack in the strings 10a to 10c or is difficult to occur. Yes. For this reason, the strings 10a to 10c are pulled out from the distance measuring units 11a to 11c following the movement of the pointer 20, and are rewound to linearly shorten the distance between the reference points 5a to 5c and the pointer 20. Tie. Therefore, the distances L1 to L3 between the reference points 5a to 5c and the pointer 20 can be obtained by measuring the lengths of the strings 10a to 10c by the distance measuring units 11a to 11c. Depending on the moving speed of the pointer 20, the pulley 12 may rotate excessively due to its own moment of inertia or the rewinding timing may be delayed. Therefore, it is desirable that the mass of the pulley 12 be as small as possible. For example, it is desirable that the pulley 12 is made of a lightweight material such as polystyrene foam and designed to have a small moment of inertia.

  Note that the tension controller 13 and the encoder unit 17 shown in this example are merely examples, and other sensors such as a rotary encoder may be employed for the encoder unit 17, for example.

  The pointer 20 connected by the distance measuring units 11a to 11c and the strings 10a to 10c includes a ring 21 through which a finger can pass and a protrusion (pointer, pointing unit) provided at a second position 23 of the ring 21. 24, and the tips 18 of the strings 10a to 10c are combined and attached to a first position 22 opposite to the second position 23 of the ring 21. When measuring the form of the human body, the ring 21 of the pointer 20 is put on a finger, or the pointer 20 is moved by holding the ring 21, and the protrusion 24 is brought into contact with or contacted with the part to be measured of the human body H. The external switch 4 is operated to capture the coordinate data φ1 at that time. The external switch 4 may be attached to the pointer 20.

  FIG. 2 shows a block diagram of the device 1. The sampling unit 45 of the data processing unit 40 of the apparatus 1 uses the lengths (distances) L1 to L3 output from the three distance measuring units 11a to 11c as the positioning data φ9, and sets the spatial coordinates of the pointer 20 to 1 / 500 seconds, that is, every 2 msec (milliseconds), and output as coordinate data φ1. A method of calculating spatial coordinates using distances from three or more reference points as positioning data φ9 is known in radio wave positioning and the like, and is also disclosed in Patent Document 1.

That is, the coordinates of the three reference points 5a to 5c are (x1, y1, z1), (x2, y2, z2), and (x3, y3, z3), respectively, and the distance from the coordinates of each reference point to the pointer 20 Is L1, L2, and L3, the spatial coordinates P (x, y, z) of the pointer 20 are expressed by equations (1) to (3).
(X−x1) ² + (y−y1) ² + (z−z1) ² = L1 ² (1)
(X−x2) ² + (y−y2) ² + (z−z2) ² = L2 ² (2)
(X−x3) ² + (y−y3) ² + (z−z3) ² = L3 ² (3)
Therefore, the spatial coordinates P of the pointer 20 can be obtained by solving the equations (1) to (3) by an appropriate method, such as matrix transformation.

  The sampling unit 45 acquires the combinations L1, L2, and L3 of the positioning data φ9 from the distance measurement units 11a to 11c at a frequency (interval) of 2 msec (1/500 second), and calculates the spatial coordinate P. Further, the sampling unit 45 outputs the calculated spatial coordinates P as coordinate data φ1 continuously (continuously) to the PC 3 via the communication function 49 regardless of whether or not they are used. The sampling frequency at which the sampling unit 45 performs coordinate calculation is preferably every 1 to 100 msec, and more preferably every 1 to 10 msec. The pointer 20 and the switch 4 that captures specific coordinates as the data piece φ10 from the coordinate data φ1 are also manually moved by the measurer, and if the resolution is 100 msec or less, preferably 10 msec, the pointer 20 manually moved The spatial coordinates P can be acquired without delay with respect to the intention of the measurer or the movement of the hand.

  In this position sensor 2, the pointer 20 and the distance measuring units 11a to 11c are mechanically connected by strings (threads) 10a to 10c, and a reference point (position) is measured by measuring the length of the strings 10a to 10c. The distances L1 to L3 between 5a to 5c and the pointer 20 can be acquired. Therefore, the coordinate data φ1 can be output at short intervals of subseconds or less, and the desired coordinate data can be captured from the coordinate data φ1 so that the coordinate data of the place intended by the measurer can be accurately and easily acquired. .

  The sampling unit 45 includes a data correction function 45a and a pointer position correction function 45b. The data correction function 45a outputs the coordinate data φ1 as invalid data when the coordinate in the minus direction is calculated with respect to the measurement reference plane 2a of the position sensor 2, or forcibly on the measurement reference plane 2a. Convert to coordinate data and output. Further, the data correction function 45a utilizes the fact that the coordinate data φ1 is continuously calculated in a short time, and there is an abnormality in the positioning data L1 to L3 due to some factor, and there is a certain sampling. When the coordinate data φ1 calculated at the timing is significantly different from the previous and subsequent appropriate coordinate data φ1, a function for automatically correcting the coordinate data φ1 with a high probability may be provided. Therefore, the sampling unit 45 can output coordinate data φ1 having high accuracy and reliability from the positioning data φ9 of the position sensor 2.

  The pointer position correction function 45b is a space from the coordinate reference point of the measurement reference plane 2a (for example, the center point of the triangle formed by the reference points 5a to 5c) with respect to the spatial coordinate P obtained from the positioning data L1 to L3. The position extended by the length of the pointer 20 in the direction of the coordinate P (the direction of the first position 22 of the pointer 20) is output as the actual coordinate data φ1. The pointer position correction function 45b can output coordinate data φ1 with higher accuracy that takes the shape of the pointer 20 into account.

  The coordinate data φ1 continuously provided from the sampling unit 45 is captured by the capturing unit 38 at a timing designated by the measurer. The analysis unit 30 performs a predetermined process using some data (data pieces) φ10 of the captured coordinate data φ1. The analysis unit 30 of this example includes a function as a human body measurement unit 31 that outputs a human body shape measurement result based on a plurality of coordinate data pieces φ 1 stored in the memory 39. The human body measurement unit 31 includes, for example, a function 32 for measuring an angle formed by the captured coordinate data pieces Pc1, Pc2, and Pc3, a function 33 for measuring the circumference of each part, and the positions of other parts with respect to the body. And a function 34 for automatic detection.

  FIG. 3A shows an example of measuring a human body using the function 32 for measuring an angle. The function 32 for measuring the angle includes the first part (for example, the upper arm) of the human body H specified by the first data piece Pc1 (fourth coordinate data piece) and the second data piece Pc2 (fifth coordinate). A second part (for example, a shoulder) of the human body H specified by the data piece) and a third part (for example, a part of the trunk) specified by the third data piece Pc3 (sixth coordinate data piece) Can be output. Therefore, the length and angle of the desired part can be obtained by applying the pointer 20 to the desired part of the human body H several times without using the angle measuring device.

  Specifically, when sampling is started in a state (initial state) where the pointer 20 is placed at an appropriate location on the measurement reference plane 2a of the position sensor 2, the sampling unit 45 has the pointer 20 on the measurement reference plane 2a. Output of the coordinate data φ1 is started with the position as the temporary measurement reference position 9 (time t0 in FIG. 2). The provisional measurement reference position 9 does not have to be at the center of the three reference points 5a to 5c, and if it is on the measurement reference surface 2a, even if it is in a position close to any of the reference points 5a to 5c, Can be measured as the temporary measurement reference position 9. Thereafter, whether the pointer 20 is moved or not, the sampling unit 45 continuously outputs the coordinate data φ1 at intervals of 2 msec.

  The pointer 20 is moved, for example, the projection 24 is applied to the upper arm or elbow when the arm is raised, and at that time (time t1), the switch 4 is operated to output the capture signal φ2. The capturing unit 38 captures the coordinate data (data piece) φ10 at that time and stores it in the memory 39 as the first data piece Pc1. Similarly, when the pointer 20 is moved and the projection 24 is put on the shoulder (time t2), the switch 4 is operated and stored in the memory 39 as the second data piece Pc2. Next, the projection 24 of the pointer 20 is applied to the upper arm or elbow when the arm is lowered, and at that time (time t3), the switch 4 is operated and stored in the memory 39 as the third data piece Pc3.

  The function 32 for measuring the angle of the human body measuring unit 31 includes a line connecting the first data piece Pc1 and the second data piece Pc2, and a line connecting the second data piece Pc2 and the third data piece Pc3. It is preset to automatically calculate the angle. Therefore, when the third data piece Pc3 is acquired, the angle θs of the upper arm or elbow with respect to the shoulder when the arm is raised and lowered with the shoulder as the center is automatically calculated. For this reason, for example, the movable range of the upper arm portion of the subject can be measured and stored in the memory 39 or displayed on the display of the PC 3 by the function 32 for measuring this angle.

  FIG. 3B shows a different example of the function 32 for measuring the angle. In this example, the function 32 for measuring the angle acquires the first to fourth data pieces Pc1 to Pc4 and calculates the angle. Therefore, the angle between the part defined by the data pieces Pc1 and Pc2 and the part defined by the data pieces Pc3 and Pc4 can be obtained. For this reason, even if it is a site | part from which the coordinate of the site | part used as the center of turning cannot be obtained correctly, a turning angle and the angle at the time of bending or extending | stretching can be acquired accurately and easily.

  FIGS. 4A and 4B show an example in which the arm circumference is measured by the function 33 for measuring the circumference. The function 33 for measuring the circumference is that when the first captured data piece Pc1 and the second captured data piece Pc2 are stored in the memory 39, the first data piece Pc1 and the second data piece are stored. The distance from the piece Pc2 is determined as the circumference of the part of the human body, and the circumference is calculated and stored in the memory 39 or displayed on the PC3.

  That is, the pointer 20 is connected to the reference points 5a to 5c by the strings 10a to 10c, the length is obtained as the positioning data L1 to L3, and the coordinate position is calculated based on the positioning data L1 to L3. Therefore, it is possible to calculate the lengths of the strings 10a to 10c, which are positioning data, from the coordinate position (data piece). Furthermore, the strings 10a to 10c connect the shortest distance in the space, but if there is an obstacle, the string 10a to 10c is detoured. Can do.

  FIG. 5 shows an example in which the position of each part around the trunk is measured by the function 34 for automatically detecting the position of each part of the body. In this example, the detecting function 34 grasps the size and position of the torso of the subject from the four data pieces Pc1 to Pc4 captured in order. The detecting function 34 is for the data pieces Pc5 to Pc7 captured thereafter, based on the coordinates of the data pieces Pc5 to Pc7, and the positional relationship between the body indicated by the data pieces Pc5 to Pc7 and the body Are determined, and the parts indicated by the respective data pieces Pc5 to Pc7 are automatically determined, and the values of the data pieces Pc5 to Pc7 are stored or output as the positions of the parts.

  For example, the detecting function 34 determines that the data pieces Pc1 to Pc4 captured in order are the coordinates of the left shoulder, the right shoulder, the right hip bone, and the left hip bone, and determines the position and size of the trunk. Next, when the fifth data piece Pc5 is captured, the detecting function 34 determines that it is a coordinate indicating the left arm since it is a left coordinate from the left shoulder coordinate, and when the sixth data piece Pc6 is captured, Since it is a coordinate right from the shoulder coordinate, it is determined as a coordinate indicating the right arm, and when the seventh data piece Pc7 is acquired, it is determined to be a coordinate indicating the neck because it is above the coordinates of the left shoulder and the right shoulder. The detecting function 34 can associate the automatically determined part name and position with each other and store them in the memory 39 or display them on the PC 3. Therefore, the measurer can save the trouble of inputting the part being measured.

  As described above, by using the apparatus 1 including the human body measurement unit 31, the subject does not take an excessive posture to wear the angle measuring device, and the measurer also applies the angle measuring apparatus to the human body. It is possible to easily and accurately measure various data of a human body part, for example, relative position, length, angle, movable range, etc. without taking the trouble of measuring.

  FIG. 6 shows a different example of the measuring apparatus 1. This measuring apparatus 1 includes a pyramidal (regular tetrahedron) shaped position sensor 2, and a PC 3 having a function as a human body measuring unit is mounted on one surface of the position sensor 2. In this measuring apparatus 1, one of the other surfaces serves as a measurement reference surface 2a, three reference points 5a to 5c are arranged, and three strings 10a to 10c are arranged through holes 7 arranged at these reference points 5a to 5c. Come and go. The tips 18 of the three strings 10a to 10c are connected to the grip 51 of the tennis racket 50 of the user 55. This position sensor 2 includes three distance measuring units in the same manner as the position sensor described above. Therefore, the position sensor 2 can output the positioning data φ9 using the grip 51 as a moving body, and the sampling unit 45 built in the position sensor 2 uses the positioning data φ9 to determine the spatial coordinates of the grip 51. The indicated coordinate data φ10 is continuously output.

  The measurement apparatus 1 further includes a voice response unit 6 built in the pyramid apex of the position sensor 2, and the voice response unit 6 outputs a capture signal φ 2 in response to a voice instruction from the user 55. For example, the voice response unit 6 continuously outputs the capture signal φ2 between the “start” and “stop” instructions of the user 55. Thus, the capturing unit 38 built in the PC 3 can store the coordinate data φ1 output between “start” and “stop” in the memory 39 as the movement of the grip 51. The human body measurement unit 31 of the PC 3 can output the movement of the grip 51 as the hand movement of the user 55, and the user 55 confirms the movement of his hand (three-dimensional hand movement) by the output of the PC 3. Or compare with the movements of other people's hands.

  In the above description, the position sensor 2 is described based on the type of calculating the spatial coordinates of the moving object using the distances from the three reference points to the moving object. However, the polar coordinates of the moving object are obtained to obtain the space of the moving object. It may be a type of position sensor that forms coordinates. Further, the shape of the position sensor 2 is not limited to a rectangular parallelepiped and a regular tetrahedron, and may be another polygon or a sphere. The position sensor 2 may be moved. When the position sensor 2 moves, the spatial coordinates of the position sensor 2 can be acquired with a moving body connected by a string as a reference (fixed point). is there. In the above description, an apparatus having a human body measurement function is described as an example. However, an apparatus that measures and records the shape and position of an object other than a human body may be used.

1 measuring device, 2 position sensor, 3 PC, 4 switch 20 pointer (moving body), 45 sampling unit

Claims (11)

A position sensor that connects at least one reference point and a moving body with a string, and obtains positioning data for which a spatial coordinate of the moving body is obtained;
A sampling unit that periodically calculates the spatial coordinates of the moving body in sub-second units using the positioning data, and continuously outputs the coordinate data of the moving body;
A switch for capturing data pieces of coordinate data of the moving object that is continuously output;
And a memory for storing a plurality of captured coordinate data pieces. In claim 1,
The sampling unit outputs the coordinate data of the moving body continuously every 1 to 100 milliseconds. In claim 2,
The sampling unit outputs the coordinate data of the moving body continuously every 1 to 10 milliseconds. In any of claims 1 to 3,
An apparatus comprising a human body measurement unit for outputting a human body shape measurement result based on the plurality of coordinate data pieces stored in the memory.   5. The apparatus according to claim 4, wherein the human body measurement unit includes a function of determining a distance between the first coordinate data piece and the second coordinate data piece as a circumference of a human body part.   6. The human body measurement unit according to claim 4, wherein the anthropometric unit includes a first part specified by a third coordinate data piece and a fourth coordinate data piece, a second part specified by a fifth coordinate data piece, And a function of outputting the angle of the third part specified by the sixth coordinate data piece.   7. The human body measuring unit according to claim 4, wherein when the position of the trunk portion is specified by the plurality of coordinate data pieces, the position indicated by the subsequent coordinate data pieces is referred to the position of the trunk portion. As a device, including the function of automatically determining as a specific part of the human body. In any one of Claims 1 thru | or 7,
The position sensor detects at least three reference points having different positions and a plurality of strings that connect the moving body, and at least three lengths that respectively connect the at least three reference points and the moving body. A device comprising: a first sensor; In any one of Claims 1 thru | or 7,
The position sensor includes a first sensor that detects a length of a first string that connects the reference point and the moving body, and a second sensor that detects an angle in two directions of the first string. Including the device. In any one of Claims 1 thru | or 9, the said mobile body is ring shape, the said string is attached to the 1st position, and the pointer is attached to the 2nd position on the opposite side to the said 1st position,
The sampling unit includes a function of outputting, as the coordinate data, a position extended by the length of the moving body in the direction of the first position with respect to the spatial coordinates. A position sensor that connects at least one reference point and a moving body with a string, and obtains positioning data for which a spatial coordinate of the moving body is obtained;
A sampling unit that periodically calculates the spatial coordinates of the moving body in sub-second units using the positioning data and continuously outputs the coordinate data of the moving body.

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