JP2013188422A - Measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring device or the like capable of controlling adverse effects on each other between a radio communication device and a processing device or the like, to the minimum.SOLUTION: A measuring device includes a circuit board 10, a processing device 20 provided in the circuit board 10 for arithmetic operation on measurement information, a radio communication device 30 for radio communication on the measurement information with outside devices, and an antenna 40 connected to the radio communication device 30. Assuming that an area on a first direction DR1 side of a center axis LC of the circuit board 10 is a first area RG1 and that an area on a second direction DR2 side of the center axis LC is a second area RG2, the processing device 20 is provided in the first area RG1, the radio communication device 30 and the antenna 40 are provided in the second area RG2, and the antenna 40 is provided on the second direction DR2 side of the radio communication device 30.

Description

  The present invention relates to a measuring apparatus and the like.

  It is known that there is an appropriate heart rate range for running and jogging. If the exercise load is low, the effect of exercise cannot be expected, and it is not preferable that the exercise load is too large. For example, Patent Document 1 discloses a device that measures a heart rate and notifies an increase / decrease in the amount of exercise so as to be within an appropriate range of aerobic exercise.

  Since there are individual differences in the appropriate heart rate range, the device often measures the heart rate (the number of heart beats converted per minute) and displays it as needed. For example, in Patent Document 2, a heart rate monitor that detects a heart rate using an electrical pulse emitted by the heart is installed on the chest, and information is transmitted from the heart rate monitor to a wristwatch type display device mounted on an arm or the like wirelessly. Thus, a system for displaying a heart rate on the wristwatch type display device is disclosed.

  For example, a wristwatch-type display device is equipped with a clock and stopwatch function in addition to a heart rate display function, so that a lap time, a running time, and the like can be measured. Furthermore, there is a type that measures the number of steps taken, the distance traveled, and the like. In this case, various methods are conceivable as methods for measuring the distance.

  For example, in the first method, the travel distance and the travel speed are calculated using position information from a positioning system such as GPS (Global Positioning System). In the second method, the number of steps and the step length are measured using a foot pod type sensor (acceleration sensor or the like) attached to the foot, and the travel distance, the travel speed, and the like are calculated from the number of steps and the step length.

JP 2007-75201 PR JP 2008-18928 A

  In the case of measuring the number of steps, the travel distance, the travel speed, etc. in addition to the time and heart rate measurement, the GPS-based system described above incorporates the GPS into a wristwatch type display device.

  However, the method using GPS has a problem that the battery life is too short for a wristwatch because of the large power consumption of GPS. In addition, when running around a narrow place, the error is large, and there is a problem that measurement cannot be performed indoors or in a valley of a building.

  On the other hand, the foot pod type can solve these problems, but in addition to the heart rate monitor worn on the chest and the display device worn on the arm, it is necessary to wear a sensor on the foot, which is convenient for the user. Will be damaged.

  For this reason, it is desirable to measure the number of steps and mileage within the heart rate monitor that is worn on the chest, but the acceleration measurement at the chest, which is the point for heart rate measurement, is accurate at the same time. There is a problem that is difficult.

  In addition, heart rate measurement that handles ECG pulses that are minute analog signals, acceleration measurement with fundamental spatial anisotropy because it is a human running, and wireless communication for transmitting measurement information, respectively, The environmental conditions desirable for the circuit are different. In addition, waterproof sealing is required to protect the electronic circuit from sweat and the like during use. For this reason, in order to achieve better performance, it is important to arrange the mounting components on the circuit board. However, a wireless communication device (for example, 2.4 GHz band), a processing device such as a heartbeat measurement microcomputer, three-axis In a system in which a motion sensor such as an acceleration sensor is combined, a suitable arrangement method of such mounting components has not been disclosed.

  According to some aspects of the present invention, it is possible to provide a measuring apparatus and the like that can minimize the mutual adverse effects between the wireless communication apparatus and the processing apparatus.

  One embodiment of the present invention includes a circuit board, a processing device that is provided on the circuit board and performs arithmetic processing on measurement information, a wireless communication device that performs wireless communication on the measurement information with the outside, And an antenna connected to the wireless communication device, wherein a region on the first direction side of the central axis of the circuit board is defined as a first region, and a first direction of the central axis in a direction opposite to the first direction 2 is a second region, the processing device is provided in the first region of the circuit board, and the wireless communication device is provided in the second region of the circuit board. And the antenna, and relates to a measurement apparatus in which the antenna is provided on the second direction side of the wireless communication device.

  According to one aspect of the present invention, the measurement device includes a circuit board, a processing device, a wireless communication device, and an antenna. The processing apparatus is provided in the first region on the first direction side with respect to the central axis of the circuit board. On the other hand, the wireless communication device and the antenna are provided in a second region on the second direction side with respect to the central axis of the circuit board, and the antenna is provided on the second direction side of the wireless communication device. If it does in this way, it will become possible to arrange | position the processing apparatus which performs the arithmetic processing about measurement information, and the radio | wireless communication apparatus and antenna which perform the radio | wireless communication about measurement information at a distance in a circuit board. Accordingly, it is possible to minimize the mutual adverse effects between the wireless communication device and the processing device, and it is possible to provide a measurement device suitable for acquisition and notification of measurement information.

  In one embodiment of the present invention, the apparatus includes at least one terminal for measuring biological information of a subject, the processing apparatus is provided on a first surface of the circuit board, and the at least one terminal is the circuit. You may provide in the 2nd surface of the back surface of the said 1st surface of a board | substrate.

  In this way, while placing important mounting components such as processing devices in a concentrated manner on the first surface of the circuit board, the biological information of the subject is placed on the second surface on the back surface of the first surface. By providing at least one terminal for measurement, the biological information of the subject can be measured.

  In one embodiment of the present invention, a first terminal and a second terminal are provided as the at least one terminal, and the first terminal and the second terminal are provided on the second surface of the circuit board. A battery holder for supplying power to the measuring device may be provided between the two.

  In this way, mounting components that require a large number of signal lines are concentrated on the first surface of the circuit board, and a large number of signal lines are not required on the second surface of the circuit board. Since it is possible to dispose the first and second terminals and the battery holder that are not present, the mounting efficiency of the circuit board can be improved. In addition, the first and second terminals and the battery holder portions, which require a certain amount of component height, are concentrated on the second surface of the circuit board so that the component height is leveled and the thickness of the device is increased. Can be minimized.

  In the aspect of the invention, the first terminal and the second terminal may be terminals for measuring heartbeat information of the subject.

  In this way, heart rate information from the chest of the subject can be efficiently measured using the two first and second terminals.

  In one aspect of the present invention, the apparatus includes a motion sensor for measuring movement information of the subject, and the processing device calculates the biological information of the subject based on information from the at least one terminal. Processing may be performed, and calculation processing for the motion information of the subject may be performed based on sensor information from the motion sensor.

  If it does in this way, it will become possible to give both a measurement function of movement information and a measurement function of living body information to a measuring device. When the wireless communication process, the exercise information measurement process, and the biological information measurement process are performed in parallel, for example, mutual influences can be minimized, and stable and efficient measurement can be performed.

  In the aspect of the invention, the motion sensor may be provided between the processing device and the wireless communication device on the first surface of the circuit board.

  In this way, even in the arrangement of motion sensors, efficient mounting arrangement can be achieved while suppressing the adverse effects between apparatuses.

  In one aspect of the present invention, the motion sensor is an acceleration sensor, and the processing device obtains velocity information of the subject based on an acceleration detection value from the acceleration sensor, and the obtained velocity information is included in the obtained velocity information. Based on this, the movement distance information of the subject may be obtained.

  In this way, the acceleration sensor is used to measure the movement information such as the velocity information and the movement distance information of the subject, and also measure the biological information of the subject and the like via the wireless communication device. You can communicate.

  In the aspect of the invention, the processing apparatus may perform the integration process on the acceleration detection value in a given period, thereby obtaining the velocity information of the subject and obtaining the movement distance information. Good.

  In this way, processing based on the integrated value for the acceleration detection value can be performed, so that the accuracy of speed estimation can be improved.

  In one embodiment of the present invention, the acceleration sensor is a triaxial acceleration sensor, and the acceleration sensor is arranged on the circuit board so that a Z-axis of the three axes is orthogonal to the circuit board. It may be provided on the surface.

  In this way, when the processing device performs a calculation process for obtaining the motion information of the subject based on the acceleration detection value from the acceleration sensor, the algorithm of the calculation process can be simplified.

  In one aspect of the present invention, the measurement device is a heart rate monitor installed on the chest of the subject, and the second surface of the circuit board is a surface facing the body direction side of the subject, As the at least one terminal, a first terminal and a second terminal which are terminals for measuring heartbeat information of the subject may be provided.

  If it does in this way, the 1st and 2nd terminal provided in the 2nd surface of a circuit board will turn to the body direction side of a subject at the time of wearing, and these 1st and 2nd terminals will be turned on. By using this, heart rate information can be suitably measured from the chest of the subject.

  In one aspect of the present invention, the circuit board includes a solid pattern formation region where a solid pattern for ground is formed, and a solid pattern non-formation region where the solid pattern is not formed, and the antenna includes the solid pattern You may form by the metal line pattern wired by the pattern non-formation area | region.

  In this way, since a solid pattern is not formed near the metal line pattern of the antenna, it is possible to effectively suppress a situation in which the solid pattern becomes an interference with the antenna and deteriorates the performance of the antenna.

  In one embodiment of the present invention, the wireless communication device is provided on a second circuit board attached to the circuit board, and the antenna is connected to the second circuit board in the second circuit board. It may be provided on the direction side.

  According to this configuration, the second circuit board is attached to the circuit board, and the wireless communication device and the antenna are provided on the second circuit board, so that the distance between the processing device and the wireless communication device and the antenna is increased. Can be separated to minimize the adverse effects of each other.

The perspective view at the time of seeing the measuring apparatus of this embodiment from the 1st surface side of a circuit board. The perspective view at the time of seeing the measuring apparatus of this embodiment from the 2nd surface side of a circuit board. Explanatory drawing about the mounting method of a measuring apparatus. Explanatory drawing about the mounting method of a measuring apparatus. Explanatory drawing of the method of forming an antenna in the solid pattern non-formation area | region for grounds. Explanatory drawing of the method of providing a radio | wireless communication apparatus and an antenna in a 2nd circuit board. The structural example of a measuring apparatus. 1 shows a configuration example of a communication device. The structural example of a processing apparatus. The figure which shows the relationship between the average value of an acceleration detected value, step frequency, and speed. The relationship figure of the number of axes used for the calculation of speed information, and a correlation coefficient. The relationship figure of the integrated value of an acceleration detected value, and speed information. An example of vector and angle information represented by an acceleration detection value. FIG. 6 is a relationship diagram between an integrated angle and speed information.

  Hereinafter, this embodiment will be described. In addition, this embodiment demonstrated below does not unduly limit the content of this invention described in the claim. In addition, all the configurations described in the present embodiment are not necessarily essential configuration requirements of the present invention.

1. Measuring Device FIGS. 1 and 2 are perspective views showing a configuration example of the measuring device according to the present embodiment and an arrangement example of mounted components. 1 is a perspective view of the circuit board 10 as viewed from the first surface SF1 side, and FIG. 2 is a perspective view of the circuit board 10 as viewed from the second surface SF2 side. The configuration of the measurement apparatus according to the present embodiment is not limited to the configurations of FIGS. 1 and 2, and some of the components (for example, motion sensors) may be omitted or changed, or other components may be added. Various modifications are possible.

  The measurement device of this embodiment includes a processing device 20, a wireless communication device 30, and an antenna 40. Moreover, the motion sensor 50, the analog circuit device 60, the holder part 70 of the battery 72, and the first and second terminals TM1 and TM2 can be included.

  The circuit board 10 is a plate-like board (printed board or the like) constituting an electronic circuit by fixing various mounting parts (electronic parts, circuit elements) on the surface and connecting the parts by wiring. 1 and 2, the circuit board 10 has a rectangular (substantially rectangular) shape. The circuit board 10 may have another shape such as an ellipse.

  As shown in FIG. 4 to be described later, the circuit board 10 is sealed (mounted) in a waterproof type case 80 so that the longitudinal direction is horizontal when the subject (user or the like) is attached to the chest. ) When such a subject is mounted on the chest, the surface facing outward from the body side of the subject becomes the first surface SF1 (front surface) of the circuit board 10 and the surface facing the body side is the circuit board 10. The second surface SF2 (back surface). The circuit board 10 is sealed in the case 80 of the measuring apparatus so that the longitudinal direction of the rectangular shape is the left-right direction of the body.

  The processing device 20 is provided on the circuit board 10 and performs arithmetic processing on measurement information. For example, an IC (Integrated Circuit) of the processing apparatus 20 is mounted on the circuit board 10. The processing device 20 can be realized by a processor such as a microcomputer or an ASIC, for example.

  Here, the measurement information is information obtained by the measurement apparatus performing measurement on the subject (user or the like) to be measured. Further, the calculation process for the measurement information may be a calculation process for the measurement information itself, or may be a calculation process for information obtained by performing some process on the measurement information.

  The wireless communication device 30 performs wireless communication on measurement information with the outside. For example, wireless communication about measurement information is performed with an external device of the measurement apparatus. For example, an IC of the wireless communication device 30 or a wireless module incorporating the IC is mounted on the circuit board 10. As will be described later, the radio communication device 30 may be mounted on a second circuit board attached to the circuit board 10. The wireless communication device 30 performs wireless communication in a radio frequency band near 2.4 GHz, for example. The radio frequency band of the wireless communication device 30 is not limited to 2.4 GHz, and may be another radio frequency band such as a 5 GHz band.

  The antenna 40 is connected to the wireless communication device 30. For example, in wireless communication at 2.4 Hz or the like, the antenna 40 for wireless communication can be realized by the metal wire pattern formed on the circuit board 10.

  The motion sensor 50 is a sensor for measuring exercise information of the subject. Here, the exercise information is, for example, speed information, acceleration information, movement distance information (movement distance of walking or running) of a subject such as a user, or movement state discrimination information (discrimination information on running state or walking state). is there. As the motion sensor 50, for example, an acceleration sensor such as a triaxial acceleration sensor can be used. The motion sensor 50 is not limited to an acceleration sensor, and various sensors can be used as long as they can measure motion information of a subject. The motion sensor 50 can be realized by, for example, a package of a motion sensor device body and a detection device thereof.

  The analog circuit device 60 (analog front-end circuit) performs analog processing such as amplification processing and filter processing based on signals from the first and second terminals TM1 and TM2 in FIG. The analog circuit device 60 may have a one-chip configuration or a plurality of discrete ICs.

  2 is a member for holding the battery 72, and is called a battery holder or a battery socket, for example. As the battery 72, for example, a CR-type circular battery can be used.

  Terminals TM1 and TM2 are terminals for measuring biological information of the subject. In FIG. 2, two first and second terminals TM1 and TM2 are provided as at least one biological information measurement terminal. Depending on the type of biological information, the at least one measurement terminal may be a single terminal.

  1 and 2, the central axis of the circuit board 10 is LC. The central axis LC is an axis that bisects (substantially bisects) the circuit board 10 having a rectangular shape or the like in the longitudinal direction. For example, when the circuit board 10 is mounted on a subject, the longitudinal direction of the circuit board 10 is horizontal. In some cases, the central axis LC is an axis along the vertical direction.

  A region on the first direction DR1 side of the central axis LC of the circuit board 10 is defined as a first region RG1, and a region on the second direction DR2 side of the central axis LC is defined as a second region RG2. Here, the second direction DR2 is a direction opposite to the first direction DR1, and the first and second directions DR1 and DR2 are directions along the longitudinal direction of the circuit board 10 (horizontal direction). For example, the first direction DR1 is the left direction, and the second direction DR2 is the right direction. In this case, the first region RG1 is a left-side region (left half region) with respect to the central axis LC, and the second region RG2 is a right-side region (right half region) with respect to the central axis LC. Become. Note that the first direction DR1 may be the right direction and the second direction DR2 may be the left direction.

  As shown in FIG. 1, in this embodiment, a processing device 20 that performs measurement information calculation processing is provided in the first region RG <b> 1 of the circuit board 10.

  On the other hand, in the second region RG2 of the circuit board 10, a wireless communication device 30 and an antenna 40 that perform wireless communication processing with the outside are provided. An antenna 40 connected to the wireless communication device 30 is provided on the second direction DR2 side of the wireless communication device 30. That is, in FIG. 1, the processing device 20 is disposed on the first direction DR1 side with respect to the central axis LC, and the wireless communication device 30 and the antenna 40 are disposed on the second direction DR2 side with respect to the central axis LC. The

  With such an arrangement, it is possible to increase the distance between the processing device 20 and the wireless communication device 30 and the antenna 40. Therefore, it is possible to effectively suppress a situation in which noise or the like generated by the arithmetic processing of the processing device 20 is transmitted to the wireless communication device 30 or the antenna 40 and adversely affects the wireless communication processing.

  As shown in FIG. 1, the processing apparatus 20 is provided on the first surface SF <b> 1 of the circuit board 10. The wireless communication device 30 and the antenna 40 are also provided on the first surface SF1 side.

  On the other hand, as shown in FIG. 2, the first and second terminals TM <b> 1 and TM <b> 2 that are at least one terminal for measuring the biological information of the subject are the second on the back surface of the first surface SF <b> 1 of the circuit board 10. Is provided on the surface SF2. Here, as described above, the first surface SF1 is a surface facing from the body direction of the subject (user) toward the outside when the measuring apparatus is mounted, and the second surface SF2 is the body direction side. It is the surface that faces.

  By providing the first and second terminals TM1 and TM2 on the second surface SF2 which is a surface facing the body direction side, as will be apparent from FIG. 4 described later, the first and second terminals TM1 and TM2 It is possible to suitably measure biological information such as heartbeat information using TM2. On the other hand, since the wireless communication device 30 communicates information with the outside, the wireless communication device 30 is preferably disposed on the first surface SF1, which is a surface facing from the body direction to the outer side, for communication. .

  That is, the measurement apparatus of the present embodiment is, for example, a heart rate heart rate monitor for a subject. The second surface SF2 of the circuit board 10 is a surface facing the body direction side of the subject, and as at least one terminal, the first and second terminals TM1 that are terminals for measuring heartbeat information of the subject. , TM2 is provided.

  Further, as shown in FIG. 2, on the second surface SF2 of the circuit board 10, a holder part 70 of a battery 72 for supplying power to the measuring apparatus is provided between the first terminal TM1 and the second terminal TM2. . That is, on the second surface SF2 of the circuit board 10, the holder part 70 of the battery 72 is provided near the center (near the central axis LC).

  The first terminal TM1 is provided on the holder part 70 in the first direction DR1 side, and the second terminal TM2 is provided on the holder part 70 in the second direction DR2 side. That is, on the second surface SF2 which is the back surface of the circuit board 10, the first and second terminals TM1 and TM2 are mounted on the right and left, respectively. For example, the first and second terminals TM <b> 1 and TM <b> 2 are disposed on the central axis in the direction orthogonal to the short side of the circuit board 10.

  These first and second terminals TM1 and TM2 are terminals (connection terminals) for measuring heartbeat information of a subject, for example. That is, by mounting the measurement device as shown in FIG. 4, it is possible to suitably realize measurement of heartbeat information of the subject using the first and second terminals TM1 and TM2 as electrodes.

  As described above, in the present embodiment, as shown in FIGS. 1 and 2, the main mounting components such as the processing device 20 and the wireless communication device 30 are provided on the first surface SF1 side of the circuit board 10, The holder part 70 of the battery 72 and the first and second terminals TM1 and TM2 are provided on the second surface SF2 side of the circuit device.

  For example, in main mounting components such as the processing device 20 and the wireless communication device 30, it is necessary to wire a large number of signal lines in a complicated manner between the devices. Accordingly, by arranging these main mounting components together on the first surface SF1 side, efficient layout wiring of these signal lines and the like becomes possible.

  On the other hand, the holder part 70 and the terminals TM1 and TM2 do not require so complicated signal line wiring. For example, the first and second terminals TM1 and TM2 may be connected to the analog circuit device 60 through, for example, via holes in the circuit board 10 as shown in FIG. Wiring is simple. Further, since the wiring from the holder part 70 of the battery 72 may be connected to the power supply pattern on the first surface SF1 through, for example, the via hole of the circuit board 10, the wiring of the signal line is simple. Therefore, the mounting efficiency can be improved by arranging the holder part 70 and the terminals TM1 and TM2 together on the second surface SF2.

  Moreover, the holder part 70 and the terminals TM1 and TM2 have a predetermined component thickness. Therefore, if the holder part 70 and the terminals TM1 and TM2 having such a component thickness are arranged together on the second surface SF2, they are compared with the case where they are separately arranged on the first and second surfaces SF1 and SF2. Thus, the thickness of the measuring device can be reduced. This makes it possible to reduce the thickness of a measuring device such as a heart rate monitor in which the measuring device is incorporated, and to make the measuring device compact.

  As shown in FIG. 1, the measurement apparatus of the present embodiment includes a motion sensor 50 for measuring motion information of the subject.

  Then, the processing device 20 performs a calculation process on the biological information of the subject based on information from the terminals TM1 and TM2 (at least one terminal) provided on the surface SF2 of the circuit board 10. Specifically, calculation processing for obtaining a heart rate and the like is performed.

  On the other hand, based on the sensor information from the motion sensor 50, the processing device 20 performs a calculation process on the motion information (speed information, movement distance information) of the subject. For example, the motion sensor 50 is an acceleration sensor, and the processing device 20 obtains velocity information of the subject based on an acceleration detection value (sensor information) from the acceleration sensor. Then, based on the obtained speed information, the moving distance information of the subject is obtained. Specifically, as will be described later, the processing device 20 obtains velocity information of the subject and obtains movement distance information by performing integration processing on the acceleration detection value in a given period. As will be described later, the integration process for the acceleration detection value in this case may be an integration process of the acceleration detection value or its average value, or an integration process of the angle information of the acceleration vector corresponding to the acceleration detection value. There may be.

  Further, as shown in FIG. 1, the motion sensor 50 is provided between the processing device 20 and the wireless communication device 30 on the surface SF <b> 1 of the circuit board 10. Specifically, the motion sensor 50 is provided in a region RG1 on the direction DR1 side with respect to the central axis LC. That is, it is mounted in a region RG1 opposite to the region RG2 in which the wireless communication device 30 is provided. By doing in this way, the situation where the signal noise from the motion sensor 50 adversely affects the wireless communication device 30 can be suppressed. However, a modification in which the motion sensor 50 is arranged in the region RG2 on the wireless communication device 30 side is also possible.

  The motion sensor 50 is, for example, a three-axis (X-axis, Y-axis, Z-axis) acceleration sensor. In FIG. 1, the circuit board is configured such that the Z-axis of these three axes is orthogonal to the circuit board 10. An acceleration sensor (motion sensor 50) is provided for the ten surfaces SF1. That is, the acceleration sensor is mounted so that the Z-axis among the three axes is oriented in a direction orthogonal to the circuit board 10. Here, the direction orthogonal to the circuit board 10 is a forward direction when viewed from the body, and is a traveling direction during running or walking.

  In this way, when the processing device 20 performs a calculation process for obtaining speed information and movement distance information of the subject based on the acceleration detection value from the acceleration sensor, the algorithm of the calculation process can be simplified. It becomes like this. That is, in the algorithm of the arithmetic processing, it is possible to perform the arithmetic processing of the speed information and the moving distance information on the assumption that the acceleration detection value is the Z component and the acceleration in the traveling direction. Therefore, it is possible to simplify the algorithm of the arithmetic processing compared to the case where it is unknown which axial component each acceleration component is, and the processing load can be reduced and the processing speed can be increased. It becomes like this. In FIG. 1, the Y-axis direction is the vertical direction (vertical direction of the body) and the X-axis direction is the horizontal direction (horizontal direction of the body). However, the present invention is not limited to this. For example, the Y-axis direction may be the horizontal direction and the X-axis direction may be the vertical direction.

  FIG. 3 and FIG. 4 are explanatory diagrams for the mounting method of the measuring apparatus of the present embodiment. For example, when the measurement apparatus of the present embodiment is applied to a heart rate heart rate monitor for a subject, the circuit board 10 of FIGS. 1 and 2 is sealed and mounted in a case 80 shown in FIG. The

  In this case, the battery 72 of FIG. 2 can be taken out by opening and closing the lid 81 of the case 80 of FIG. Further, the terminals TM1 and TM2 of the circuit board 10 of FIG. 2 are exposed to the outside of the case 80 as shown in FIG.

  The belt 82 is for fixing the measuring device to the chest of the subject. The belt 82 includes first and second receiving portions corresponding to the first and second terminals TM1 and TM2. TN1 and TN2 are provided. Then, the terminals TM1 and TM2 exposed to the outside of the case 80 are connected to the receiving portions TN1 and TN2, so that a measuring device as a heart rate monitor is attached to the belt 82.

  For example, the terminals TM1 and TM2 are realized by a convex portion of a button for clothes, and the receiving portions TN1 and TN2 are realized by a concave portion of the button. Then, the measuring device (case 80) is attached and fixed to the belt 82 as shown in FIG. 3 by fitting the convex portions of the buttons to be the terminals TM1 and TM2 into the concave portions of the buttons to be the receiving portions TN1 and TN2. It becomes possible.

  Specifically, as shown in FIG. 4, the user HM who is the subject wraps and fixes the belt 82 around his chest. Then, the measuring device is attached to the belt 82 by fitting the terminals TM1 and TM2 of the measuring device into the receiving portions TN1 and TN2 of the belt 82. Then, using the terminals TM1 and TM2 (receiving portions TN1 and TN2) of the measuring device, it is possible to measure heart rate information of the user who is the subject.

  In the measurement apparatus of the present embodiment described above, the distance between the wireless communication apparatus and the processing apparatus or motion sensor can be secured, so that adverse effects on each other can be suppressed. That is, according to the present embodiment, when wireless communication, heart rate measurement, and three-dimensional acceleration measurement are operated in parallel, mutual influences can be minimized and stable and efficient measurement can be performed. .

  In addition, the mounting components can be concentrated on the first surface, which is the front surface, and the terminals and battery holders that are the connection points with the outside can be concentrated on the second surface, which is the back surface. It becomes easy to perform, and the part height can be leveled, so that the thickness of the apparatus can be minimized.

  In addition, as described with reference to FIGS. 3 and 4, the measuring apparatus according to the present embodiment is configured to be easily mechanically connected to a chest wearing belt.

  In addition, the antenna can be separated from the substrate pattern or battery that may interfere with the antenna, and communication quality and the like can be improved.

2. Antenna Next, specific implementation examples of the antenna and the wireless communication device will be described.

  For example, in 2.4 Hz radio communication, as shown in FIG. 1, the radio communication antenna 40 can be realized by a metal line pattern formed on the circuit board 10.

  However, when the antenna 40 is realized by the metal line pattern of the circuit board 10 as described above, it is desirable to consider various interferences with the antenna 40.

  On the other hand, in the circuit board 10, a solid ground pattern is formed in an empty space on the board. That is, a solid metal pattern set to the ground potential is formed on the entire surface of the substrate except for the signal wiring region.

  For example, in FIG. 5, the circuit board 10 has a solid pattern formation region RB where a solid pattern for ground is formed, and a solid pattern non-formation region RNB where a solid pattern is not formed. In the solid pattern formation region RB, solid patterns PG1, PG2, and PG3 of the metal layer set to the ground are formed on one surface with respect to the region excluding the signal wiring regions indicated by A1 and A2. By forming such solid patterns PG1 to PG3 on the substrate, it is possible to suppress a situation in which signal noise or the like is superimposed on the signal lines in the signal wiring areas indicated by A1 and A2.

  However, when the antenna 40 is formed with a metal line pattern, if a solid pattern of the metal layer exists in the immediate vicinity of the antenna 40 of the metal line pattern, various performances such as reception sensitivity of the antenna 40 may be deteriorated.

  Therefore, in the present embodiment, as shown in FIG. 5, the antenna 40 is formed by a metal line pattern wired in the solid pattern non-formation region RNB.

  That is, in the present embodiment, a solid pattern formation region RB that permits the formation of a solid pattern and a solid pattern non-formation region RNB that does not allow the formation of a solid pattern are set for the circuit board 10. For example, in FIGS. 1 and 5, the solid pattern non-formation region RNB is set at the end of the circuit board 10 on the direction DR2 side. Specifically, as shown in FIG. 5, a region from the end side SD (right side or left side) of the circuit board 10 to the distance LD is set as the solid pattern non-formation region RNB. In the solid pattern non-formation region RNB, the solid patterns PG1 to PG3 like the solid pattern formation region RB are not formed and are excluded.

  And the metal line pattern used as the antenna 40 is formed with respect to the solid pattern non-formation area | region RNB set in this way as shown in FIG. 1, FIG.

  In this way, no solid pattern is formed near the metal line pattern of the antenna 40. Therefore, it is possible to effectively suppress a situation in which the solid pattern becomes an obstacle to the antenna 40 and the performance such as the reception sensitivity of the antenna 40 is deteriorated.

  As shown in FIG. 2, also on the surface SF2 which is the back surface of the circuit board 10, it is desirable to set the region corresponding to the arrangement position of the antenna 40 to the solid pattern non-forming region RNB. By doing in this way, it can be expected that the performance deterioration of the antenna 40 can be further suppressed.

  1 and 2 show an example of a two-layer multilayer substrate in which the first metal layer is formed on the surface SF1 of the circuit board 10 and the second metal layer is formed on the surface SF2. However, the present embodiment is not limited to this, and may be a multilayer substrate having three or more layers. For example, in a three-layer multilayer substrate, a third metal layer is formed between the first metal layer that forms the wiring of the surface SF1 and the second metal layer that forms the wiring of the surface SF2. In this case, a solid ground pattern can be formed by the third metal layer.

  At this time, in the present embodiment, it is desirable that the solid pattern of the third metal layer is not formed in the arrangement region of the antenna 40. By doing in this way, when a multilayer substrate of three or more layers is used, a situation in which the solid pattern becomes an obstruction to the antenna 40 and the performance of the antenna 40 is deteriorated can be effectively suppressed.

  1, 2, and 5 show the case where the wireless communication device 30 is mounted on the circuit board 10 and the antenna 40 is formed by a metal line pattern on the circuit board 10, this embodiment is not limited to this. It is not limited to.

  For example, in FIG. 6, the second circuit board 12 is attached to the circuit board 10. The wireless communication device 30 (wireless module) is mounted on the second circuit board 12. The antenna 40 is provided on the second circuit board 12 on the second direction DR2 side of the wireless communication device 30. Specifically, as shown in the DRP of FIG. 6, the second circuit board 12 in which the antenna 40 does not overlap the lower circuit board 10 when the circuit board 10 is viewed in a plane perpendicular to the board. The antenna 40 is formed at the upper position. In other words, the antenna 40 is formed at a position on the second circuit board 12 that protrudes toward the second direction DR2 with respect to the circuit board 10.

  In this way, it is possible to effectively suppress a situation in which noise from the signal lines and the mounted parts of the circuit board 10 adversely affects the antenna 40 and degrades the performance of the antenna 40.

3. Detailed Configuration of Measurement Device and Wireless Communication Device Next, a detailed configuration example of the measurement device and the wireless communication device of the present embodiment will be described. For example, FIG. 7 is a detailed configuration example showing the electrical configuration and connection of the measurement apparatus of the present embodiment.

  7 includes a processing device 20, a wireless communication device 30, an acceleration sensor 52, and an analog circuit device 60. FIG. 7 shows an example in which the motion sensor 50 is an acceleration sensor 52.

  For example, the analog circuit device 60 includes an amplifier 62, a filter unit 64, and an A / D conversion unit 66. A terminal TM1 is connected to the amplifier 62. On the other hand, the terminal TM2 is set to the ground potential. The amplifier 62 amplifies the heartbeat detection signal from the terminal TM1. The filter unit 64 performs filter processing on the amplified signal. Specifically, band-pass filter processing is performed to pass only signals near the heartbeat frequency. The A / D conversion unit 66 performs A / D conversion of the signal after the filter processing, and outputs the obtained digital signal to the processing device 20.

  The processing device 20 receives the heartbeat detection value signal from the analog circuit device 60 and the acceleration detection value signal from the acceleration sensor 52 and performs various arithmetic processes. For example, the processing device 20 obtains the speed information of the subject based on the acceleration detection value, and obtains the moving distance information of the subject based on the obtained speed information. Specifically, the processing device 20 obtains the velocity information of the subject and obtains the moving distance information by performing an acceleration detection value integration process in a given period. Also, a calculation process for obtaining the pulse rate based on the heartbeat detection value is performed.

  The wireless communication device 30 performs processing for wirelessly communicating the measurement information obtained by the processing device 20 to the outside via the antenna 40. For example, speed information and movement distance information (motion information) obtained by the arithmetic processing of the processing device 20 are wirelessly communicated as measurement information. In addition, heart rate information (biological information) obtained by the arithmetic processing of the processing device 20 is wirelessly communicated as measurement information.

  FIG. 8 shows a configuration example of the wireless communication device 30. The wireless communication device 30 includes a reception circuit 31, a transmission circuit 35, a synthesizer unit 38, and a control unit 39.

  The reception circuit 31 includes a low noise amplifier LNA, a mixer unit 32, a filter unit 33, and a demodulation unit 34. The low noise amplifier LNA amplifies an RF reception signal (differential reception signal) input from the antenna 40 with low noise. The mixer unit 32 performs down-conversion by performing mixing (mixing) processing of the amplified received signal and a signal (local signal, local frequency signal) from the synthesizer unit 38 (clock generation circuit). The filter unit 33 performs a filtering process on the received signal after the down conversion. Specifically, the filter unit 33 performs band-pass filter processing realized by a complex filter or the like, and extracts a baseband signal while performing image removal. The demodulation unit 34 performs demodulation processing based on the signal from the filter unit 33. For example, the transmission side performs demodulation processing of a signal modulated by GFSK (Gaussian Frequency Shift Keying) or FSK (Frequency Shift Keying), and outputs the demodulated reception data to the control unit 39.

  The transmission circuit 35 includes a power amplifier PA, a transmission signal generation unit 36, and a modulation unit 37. The modulation unit 37 receives transmission data from the control unit 39 and performs modulation processing such as GFSK and FSK. The modulated transmission data is input to the transmission signal generator 36. The transmission signal generator 36 receives a carrier signal (eg, 2.4 GHz) from the synthesizer 38 and outputs a transmission signal based on the modulated transmission data to the power amplifier PA. The power amplifier PA amplifies the transmission signal (differential transmission signal) and outputs it to the antenna 40.

  The control unit 39 (link controller) performs, for example, link layer processing. Specifically, transmission packet generation processing, reception packet analysis processing, error check processing, and the like are performed. The control unit 39 performs various control processes of the wireless communication device 30.

4). Exercise Information Calculation Processing Next, details of exercise information calculation processing performed by the processing device 20 will be described. FIG. 9 shows a functional block diagram of the processing device 20. 9 includes an acquisition unit 110, a speed information calculation unit 130, a storage unit 150, a determination unit 160, and a distance information calculation unit 170. The function of the processing device 20 can be realized by various processors such as a microcomputer and a program operating on the processor. Note that the configuration of the processing device 20 is not limited to that shown in FIG. 9, and various modifications may be made such as omitting or changing some of these components or adding other components.

  The acquisition unit 110 acquires an acceleration detection value from the acceleration sensor 52. The acquisition unit 110 is an interface unit that communicates with the acceleration sensor 52, and may use a bus or the like.

  The speed information calculation unit 130 calculates speed information based on the acceleration detection value. Here, the speed information may be the speed itself, or information for obtaining the speed (for example, a magnification with respect to a reference value of speed).

  The storage unit 150 stores parameters such as coefficients used when speed information is obtained and serves as a work area for each unit. The function of the storage unit 150 can be realized by a memory such as a RAM or an HDD (hard disk drive).

  The determination unit 160 determines the user's exercise state. Specifically, the walking state and the running state are determined based on the sign of a given coordinate axis component of the acceleration detection value.

  The distance information calculation unit 170 calculates distance information representing the movement distance of the user accompanying walking or running. Here, the distance information may be the distance itself or information for obtaining the distance (for example, a magnification with respect to the reference value of the moving distance).

  The acceleration sensor 52 is composed of an element whose resistance value is increased or decreased by an external force, for example, and detects triaxial acceleration information. However, the number of axes of the acceleration sensor 52 in the present embodiment is not limited to three axes.

  Next, a method for estimating motion information such as a moving speed and a moving distance of the user based on the detected acceleration value from the acceleration sensor 52 will be described.

  Specifically, a method for obtaining based on the detected acceleration value and a method for obtaining based on the angular change of the acceleration vector corresponding to the detected acceleration value will be described.

4.1 Method Based on Average Acceleration Value First, a method based on the average value of acceleration detection values will be described. FIG. 10 shows an example of an average value of acceleration detection values when walking motion is performed in various combinations of walking pitch (corresponding to step frequency) and speed. As can be seen from FIG. 10, when the speed is constant, the average value of the acceleration detection values in a predetermined time is almost constant regardless of the step frequency (walking pitch). Further, the average value of acceleration detection values tends to increase as the speed increases.

  Various methods for calculating the average value of the acceleration detection values can be considered here. As described above, if the acceleration sensor 52 is an N-axis acceleration sensor, the acceleration detection value is an N-dimensional vector. In FIG. 10, for example, assuming N = 3 (three axes of X, Y, and Z), the magnitude (vector magnitude) Va of the acceleration detection value is obtained by the following equation (1), and each timing within a given period is obtained. It is assumed that the average value of Va obtained in (1) is used. However, you may obtain | require the average value of an acceleration detected value by methods other than the following Formula (1).

図１０より、加速度検出値の平均値と移動速度との間には高い相関があると考えられるため、その関係が求まれば加速度検出値の平均値に基づいて速度情報を演算することが可能になる。ここでは、加速度検出値の平均値をＳ、速度情報（ここでは速度そのものを想定）をＴとした場合に、１次式Ｔ＝ａＳ＋ｂを想定し、速度情報演算用パラメーターａ、ｂを適切に設定することで速度情報を演算する。

From FIG. 10, it can be considered that there is a high correlation between the average value of the acceleration detection values and the moving speed. Therefore, if the relationship is obtained, the speed information can be calculated based on the average value of the acceleration detection values. become. Here, assuming that the average value of the acceleration detection values is S and the speed information (here, the speed itself is assumed) is T, the linear expression T = aS + b is assumed and the speed information calculation parameters a and b are appropriately set. Speed information is calculated by setting.

  As a and b, even when a plurality of users are targeted, general-purpose values that can ensure a certain degree of accuracy may be set. However, since there are individual differences for each user, there is a limit in terms of accuracy when using common parameters. Therefore, depending on the case, a different value may be set for each user, and calibration processing may be performed for that purpose. Since it is necessary to determine two unknowns a and b, it is necessary to acquire two different combinations of (S, T). For example, a user may walk a known distance (for example, 100 m) at two different speeds and use the information. In this case, S can be acquired from the information of the acceleration sensor 52, and since the walking is performed at a known distance, the speed T can also be acquired by dividing the distance by the required time. That is, since two relational expressions a and b can be acquired for two unknowns, a and b can be uniquely determined.

  In addition, you may change the combination of a and b according to a walk state or a running state. In that case, the walking parameters a1 and b1 are used during walking, and the traveling parameters a2 and b2 are used during traveling. At this time, if calibration is performed, a1 and b1 are determined based on two motions at different speeds by walking, and a2 and b2 are determined based on two motions at different speeds by running. Conceivable.

4.2 Method based on the value corresponding to the absolute value of the coordinate axis component When using the average value of the acceleration detection value, the square root operation is required as shown in the above equation (1), and the average value is further obtained. There is a problem that the amount of calculation is large because division is required.

  Here, a speed information calculation method that does not involve square root calculation or division will be described. Further, in this method, if at least one coordinate axis component of one or a plurality of axes (for example, three axes) of the acceleration sensor 52 is used, the speed information can be calculated, so that further reduction in calculation amount is expected. it can. However, the accuracy increases as the number of axes used for processing increases as shown in FIG. The correlation coefficient in FIG. 11 represents the correlation value between the calculated speed information and the actual user moving speed. As the correlation coefficient increases, the estimated speed value approximates the actual user moving speed. It shows that. A, B, and C represent trial results by three different users.

  The speed information calculation unit 130 in FIG. 9 obtains an integrated value I by integrating acceleration detection values in at least one coordinate axis component of the acceleration sensor 52 for a given period. FIG. 12 shows the relationship between the integrated value I and the speed information, and square points such as P1 represent the actual measurement results. As can be seen from FIG. 12, the relationship between I and speed information can be well expressed by the curve indicated by S1.

  Therefore, here, the speed information r is obtained according to the relational expression r = cI2 + dI + e. The speed information r here may be the speed itself, or may be information corresponding to a ratio with respect to a standard speed. When r is information such as a ratio, for example, if the reference speed is Vs and the estimated speed is Vd, the speed itself is obtained from an expression such as Vd = rVs.

  Note that c, d, and e (and Vs) are preferably set to different values depending on the number of axes to be used and a predetermined period during which integration processing is performed. Furthermore, considering individual differences among users, it is desirable to set a value suitable for each user to be used. In that case, the calibration process may be performed based on the actual measurement value of the user. Moreover, the point which may switch the value of c, d, e (and Vs) according to an exercise | movement state (especially walking state or running state) is the same as that of above-mentioned a and b.

  Note that the coordinate axis component of the acceleration detection value is not always a positive (or always negative) value. Therefore, if the signs of the first acceleration detection value and the second acceleration detection value to be integrated are different from each other, they cancel each other out and the integrated value becomes small, and appropriate speed estimation cannot be performed. Therefore, the integration process may be performed using a value corresponding to the absolute value instead of the coordinate axis component itself of the acceleration detection value. Here, in view of the fact that all signs to be integrated need only match (or may include 0), the value corresponding to the absolute value may be the absolute value of the acceleration detection value itself, and is always non-negative. A value obtained by multiplying the detected acceleration value, which is the value of, by an even power.

  Further, when the number of coordinate axes used for the processing is reduced (for example, only one axis is used), the magnitude of the acceleration detection value on the axis needs to be large to some extent in order to ensure the accuracy of speed estimation. In particular, when the acceleration sensor 52 is mounted on the chest or waist, the detected acceleration value in the horizontal direction becomes very small, and therefore the coordinate axis used for processing is preferably an axis corresponding to the direction of gravity. In that case, if the deviation from the gravitational direction is allowed to some extent (for example, about 45 degrees as described above in the walking / running determination), the one closest to the gravitational direction (or the opposite direction) among the axes of the sensor coordinate system. It is enough to choose. However, when more accuracy is required, it is necessary to suppress the deviation from the gravitational direction (or the opposite direction) as much as possible, and there is no guarantee that the axes included in the sensor coordinate system satisfy the condition. Therefore, in some cases, coordinate conversion to the analysis coordinate system may be performed, and in that case, one axis of the analysis coordinate system is sufficiently small from the viewpoint of ensuring accuracy in terms of deviation from the gravity direction or the like. It is good to do.

  Also, when the number of coordinate axes used for processing is increased, it is preferable to preferentially use an axis corresponding to the direction of gravity. The integrated value I in the case of using a plurality of axes may be the sum of the integrated values obtained for each axis, or may be obtained by other methods.

4.3 Method Based on Angle Change of Acceleration Vector Speed information may be calculated based on the angle change of the acceleration vector corresponding to the detected acceleration value instead of the detected acceleration value. Specifically, angle information corresponding to an angle formed by the first acceleration vector corresponding to the acceleration detection value at the first timing and the second acceleration vector corresponding to the acceleration detection value at the second timing is obtained. The speed information is calculated based on the acquired angle information.

  When the acceleration sensor 52 is a three-axis acceleration sensor, the acceleration detection value corresponds to a vector in a three-dimensional space, and this is set as an acceleration vector corresponding to the acceleration detection value. FIG. 13 shows a specific example of the first and second acceleration vectors and angle information. A corresponding acceleration vector V1 is determined from the detected acceleration value acquired at time ST1, and a corresponding acceleration vector V2 is determined from the detected acceleration value acquired at time ST2. Here, considering V1 as the first acceleration vector and V2 as the second acceleration vector, the angle information is an angle formed by V1 and V2, and V1 = (x1, y1, z1), V2 = (x2, If y2, z2), the angle information θ is obtained by the following equation (2).

但し、角度情報はこれに限定されるものではなく、数学的にこれと等価な情報であればよい。例えば、角度情報として上式（２）で求められるθの補角を用いてもよい。その場合、角度情報の値、或いは後述する積算角度の値が上式（２）のθを用いた場合に比べて大きくなるため、後述するパラメーターｍ、ｎの値を小さくする等の処理が必要となる。或いは、Ｖ１とＶ２の内積等を角度情報としてもよい。

However, the angle information is not limited to this, and may be information that is mathematically equivalent to this. For example, a complementary angle of θ obtained by the above equation (2) may be used as the angle information. In that case, since the value of angle information or the value of the integrated angle described later is larger than when θ in the above equation (2) is used, processing such as decreasing the values of parameters m and n described later is required. It becomes. Alternatively, the inner product or the like of V1 and V2 may be used as the angle information.

  The angle information may be information that approximates the angle formed by V1 and V2. For example, the angle information may be obtained as an integer type in the system. If the value of the angle information is expressed using a floating point number, the angle information can be obtained with high accuracy, but the calculation with the floating point number has a high processing load. Therefore, the processing load may be reduced by using an integer index value as angle information. Simply, if the value obtained by rounding down the decimal point of the angle formed by V1 and V2 is δ degrees (δ is an integer), the angle information may be δ. However, in this case, since the angle can be expressed only in units of one degree, an error occurs between the actual angle and the value represented by the angle information, leading to a decrease in accuracy of speed estimation. Therefore, some conversion may be performed. For example, an integer type index value in which 0.5 degree is 1 may be used as the angle information. In this case, the index value of 20 represents 10 degrees, and an angle can be expressed in units of 0.5 degrees. In addition, the angle information is not limited to that described above, and may be information corresponding to an actual angle.

  Details of the processing for obtaining the speed information based on the angle information θ will be described. For example, the user may instantaneously accelerate due to the user's body shaking from side to side while moving. At this time, when the speed estimation process is performed only from the angle information obtained at a certain time, the speed information may be erroneously estimated larger than when the user's body is not shaken. Therefore, it can be expected that the occurrence of such an error can be prevented if not only angle information at a certain time but also angle information acquired within a given period can be used for the speed estimation process.

  Therefore, the speed information calculation unit 130 in FIG. 9 obtains an integrated angle θsum by integrating the values represented by the angle information θ obtained within a given period, and obtains the speed information V from the relational expression of V = mθsum + n. You may ask for it. The fact that the speed information is expressed by a linear expression of the integrated angle is obtained experimentally. A specific example is shown in FIG. FIG. 14 is a graph showing the relationship between the integrated angle and the actually measured speed value. Each series data represents walking data (I_WALK, H_WALK, F_WALK, K_WALK) and running data (I_RUN, H_RUN, F_RUN, K_RUN) for each of four subjects I, H, F, and K. . As can be seen from FIG. 14, when attention is paid to one user data, the relationship between the accumulated angle and the speed is well represented by a given straight line during walking, and the relationship is represented by a straight line different from that during walking when running. Expressed well. Specifically, it shows a high correlation such as a correlation coefficient of 0.98 to 0.99.

  Note that general-purpose values (for example, m and n corresponding to the straight line TR1 when walking and TR2 when running) may be used as m and n, or different values may be set for each user. Similar to the above-described example, m and n may be determined by performing a calibration process based on points, actual measurement values, and the like. As can be seen from FIG. 14 and the like, since it is known that typical values of m and n are different between the walking state and the running state in this method, the walking state or the running state is determined based on the determination result in the determination unit 160. It is desirable to switch the values of m and n according to the state.

  Although the present embodiment has been described in detail as described above, it will be easily understood by those skilled in the art that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention. For example, a term described at least once together with a different term having a broader meaning or the same meaning in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings. Further, the configuration and operation of the measuring device, processing device, wireless communication device, etc. are not limited to those described in this embodiment, and various modifications can be made.

LC central axis, DR1 first direction, DR2 second direction,
RG1 first region, RG2 second region, SF1 first surface, SF2 second surface,
TM1 first terminal, TM2 second terminal,
TN1 first receiving part, TN2 second receiving part,
RN solid pattern formation region, PG1 to PG3 solid pattern,
RNB solid pattern non-formation area, HM user,
LNA low noise amplifier, PA power amplifier,
10 circuit board, 12 second circuit board, 20 processing device, 30 wireless communication device,
31 receiving circuit, 32 mixer, 33 filter unit, 34 demodulating unit,
35 transmission circuit, 36 transmission signal generation unit, 37 modulation unit, 38 synthesizer unit,
39 control unit, 40 antenna, 50 motion sensor, 52 acceleration sensor,
60 analog circuit device, 70 holder part, 72 battery, 80 case,
81 lid part, 82 belt, 110 acquisition part, 130 speed information calculation part,
150 storage unit, 160 determination unit, 170, distance information calculation unit

Claims (12)

A circuit board;
A processing device that is provided on the circuit board and performs arithmetic processing on measurement information;
A wireless communication device for performing wireless communication on the measurement information with the outside;
An antenna connected to the wireless communication device;
Including
A region on the first direction side of the central axis of the circuit board is defined as a first region, and a region on the second direction side of the central axis opposite to the first direction is defined as a second region. If
The processing device is provided in the first region of the circuit board;
The wireless communication device and the antenna are provided in the second region of the circuit board;
The measurement apparatus, wherein the antenna is provided on the second direction side of the wireless communication apparatus. In claim 1,
Including at least one terminal for measuring biological information of the subject;
The processing apparatus is provided on a first surface of the circuit board,
The measurement apparatus according to claim 1, wherein the at least one terminal is provided on a second surface of the back surface of the first surface of the circuit board. In claim 2,
As the at least one terminal, a first terminal and a second terminal are provided,
A measuring apparatus, wherein a holder for a battery for supplying power to the measuring apparatus is provided between the first terminal and the second terminal on the second surface of the circuit board. In claim 3,
The measuring apparatus, wherein the first terminal and the second terminal are terminals for measuring heartbeat information of the subject. In any of claims 2 to 4,
A motion sensor for measuring movement information of the subject,
The processor is
Based on information from the at least one terminal, calculation processing is performed on the biological information of the subject, and calculation processing is performed on the motion information of the subject based on sensor information from the motion sensor. A measuring device. In claim 5,
The motion sensor is provided between the processing device and the wireless communication device on the first surface of the circuit board. In claim 5 or 6,
The motion sensor is an acceleration sensor;
The processor is
A measurement apparatus characterized in that velocity information of the subject is obtained based on an acceleration detection value from the acceleration sensor, and movement distance information of the subject is obtained based on the obtained velocity information. In claim 7,
The processor is
A measuring apparatus characterized in that the moving distance information is obtained by obtaining the velocity information of the subject by performing an integration process on the acceleration detection value in a given period. In claim 7 or 8,
The acceleration sensor is a triaxial acceleration sensor,
The measurement apparatus, wherein the acceleration sensor is provided on the first surface of the circuit board so that a Z-axis of the three axes is orthogonal to the circuit board. In any one of Claims 2 thru | or 9.
The measuring device is a heart rate monitor installed on the chest of the subject,
The second surface of the circuit board is a surface facing the body direction side of the subject,
A measuring apparatus comprising a first terminal and a second terminal which are terminals for measuring heart rate information of the subject as the at least one terminal. In any one of Claims 1 thru | or 10.
The circuit board has a solid pattern formation region in which a solid pattern for ground is formed, and a solid pattern non-formation region in which the solid pattern is not formed,
The antenna is formed by a metal line pattern wired in the solid pattern non-formation region. Any one of claims 1 to 10,
The wireless communication device is provided on a second circuit board attached to the circuit board,
The measurement apparatus, wherein the antenna is provided on the second circuit board on the second direction side of the wireless communication device.

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