JP2008295497A - Biometric device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biometric measurement instrument provided with a false operation prevention means for preventing the biometric measurement instrument from operating unintentionally. <P>SOLUTION: The instrument is provided with: a mounting part for mounting a measured person which is provided for a main body of the biometric measurement instrument and measures biological information; and a false operation prevention means for putting the biometric measurement instrument into a non-operation state when the biometric measurement instrument is not used. The false operation prevention means has a leaning switch for switching on/off power supply which operates the biometric measurement instrument. Also, it has a press button provided for a side part of the main body and, when the press button is pressed, the power supply is turned off. It is provided with a stand capable of holding the main body in a standing state and, when the main body is held by the stand, the press button is pressed by the stand and the power supply is turned off. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a biometric apparatus that measures biometric information, and more particularly, to a biometric apparatus that can prevent malfunction.

  Conventionally, various biometric devices for measuring biological information such as a body weight, a body fat percentage, and a body fat amount of a measurement subject have been used. For example, at home, body fat is one of the biometric devices. Scales with scales are widely used. Such a weight scale with a body fat scale generally includes a body having a mounting portion on the upper surface on which the measurement subject is placed, and an electrode member for measuring a body fat percentage of the measurement subject. It is provided at other predetermined locations. When using a weight scale with a body fat scale to obtain biometric information, the main body is placed on the horizontal floor of the room, and the subject is placed on the placement unit to measure the weight, and the sole of the subject's foot Alternatively, a weak constant current is applied from the palm of the hand to measure electrical resistance (bioimpedance), and biological information such as body fat percentage and body fat content indicating the composition of the body tissue is measured (Patent Document 1).

  Such body weight scales with body fat scales are practically used to reduce the area of the mounting portion on which the subject is placed while the thickness of the main body is reduced due to recent miniaturization of electronic components. There is a limit. Therefore, when not using the body scale with a body fat scale, the person to be measured leans with one side of the main body facing the floor and the upper surface (mounting portion) or lower surface of the main body facing the wall, or There is a tendency to place the corners of the room in contact with the walls.

JP-A-10-179536

  However, it is provided in the main body when the biometric device is not used, such as a state where the one side of the main body faces down as described above, or a state where the side is in contact with the wall. The operation unit, the foot switch, or the like may be pushed by contact with the wall, and the scale with a fat scale may operate unintentionally. As a result, in the case of a scale with a fat scale that has a built-in battery, the battery is consumed, or in the case of a scale with a fat scale that can store personal biological information, setting of operating conditions, etc. There was a risk that information could be accidentally rewritten or erased.

  Therefore, in view of the above problems, the present invention has an object to provide a biometric apparatus provided with a malfunction prevention means for preventing the biometric apparatus from operating unintentionally when the biometric apparatus is not used. And

  A biometric apparatus of the present invention for solving the above-described problem is a biometric apparatus for measuring biological information of a measurement subject, and is provided in a main body of the biometric apparatus for measuring biometric information. It is provided with the mounting part which the said to-be-measured person mounts, and the malfunction prevention means which makes the said biometric apparatus non-operation state in the state which is not using the said biometric apparatus.

  Further, the malfunction prevention means of the biometric apparatus of the present invention has a vertical switch for turning on / off the supply of electric power for operating the biometric apparatus, and the supply of electric power is turned on by the vertical switch. The biometric device is in an activated state, and is deactivated when power supply is turned off.

  The standing switch of the biometric apparatus of the present invention has a push button provided on a side portion of the main body, and the power supply is turned off when the push button is pressed. .

  In addition, the biometric device of the present invention includes a stand that can be held in a state where the main body is standing, and when the main body is held by the stand, the push button is pushed by the stand and the supply of power is turned off. It becomes the structure which becomes.

  Further, the push button of the biometric device of the present invention is disposed in a recess provided in a side portion of the main body, and the stand has a convex portion having a shape complementary to the concave portion of the main body, The main body is held by the stand in a state where the push button in the concave portion is pushed by the convex portion.

  Further, the malfunction preventing means of the biometric device of the present invention includes an attitude detection unit for detecting the presence or absence of inclination of the mounting unit, and the mounting unit tilted based on a signal from the posture detection unit. A control unit for determining whether or not the placement unit is tilted by the control unit, the control unit sets the biometric device in an inoperative state. Features.

  Further, the posture detection unit of the biometric apparatus of the present invention is a tilt sensor.

  Further, the malfunction prevention means of the biometric device of the present invention includes a foot switch for turning on and off the biometric device, and a control unit that receives a signal from the foot switch, and the foot switch When is pressed for a long time, the control unit puts the biometric device into an inoperative state.

  Further, the malfunction prevention means of the biometric device of the present invention includes a plurality of foot switches for turning on and off the biometric device, and a control unit that receives a signal from the foot switch, and at least When the two foot switches are pressed, the control unit deactivates the biometric device.

  In this specification, the state in which the biometric device is not used includes a state in which the biometric device is stored, a state in which the mounting portion of the main body is inclined with respect to a horizontal plane, a state in which the biometric device is upright, It means not only the state in which the measuring device is turned over, but also the state in which the placement unit is arranged horizontally but the biometric device is in contact with an obstacle.

  According to the present invention, when the biometric device is not used, the malfunction preventing means makes the biometric device inoperative, so there is no malfunction that the biometric device operates unintentionally. . As a result, the measurement subject can store the biometric device in a desired position in a desired location without worrying about malfunction.

  A weight scale with a body fat scale according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a weight scale 1 with a body fat scale according to the first embodiment. FIG. 2 is a view showing a state in which the weight scale 1 with a body fat scale is held by a stand 61. FIG. Side view, (b) is an enlarged cross-sectional view taken along the plane IIb in FIG. 2 (a) at a position corresponding to the line II-II in FIG. 1, and FIG. 3 is the body of FIG. It is a block diagram of the scale 1 with a fat scale.

  As shown in FIGS. 1 to 3, a weight scale 1 with a body fat scale (hereinafter referred to as a weight scale 1) according to the first embodiment is provided on a main body 3 formed in a substantially box shape and a back surface 3 b of the main body 3. A leg portion 53 that is provided and supports the main body 3. The main body 3 includes a placement unit 3a, a measurement unit 47 having electrode members 30 (current supply electrodes 31a and 32a, measurement electrodes 31b and 32b) for acquiring biological information, a display unit 21, and an operation unit 22. The foot switch 23, the storage unit 25, the control unit 29, the standing switch 39 provided on the side portion 5 of the main body 3 for turning on / off the power supply for operating the weight scale 1, and the power source for supplying power 51. The scale 1 of the present embodiment has a configuration in which a path for supplying power can be mechanically cut by a standing switch 39 as a malfunction prevention means. Below, the detailed structure of each member is demonstrated.

  The main body 3 is formed in a substantially box shape by combining rectangular plate members (cover member and bottom plate member) formed by molding a resin (for example, ABS resin (acrylonitrile / butadiene / styrene copolymer)). On the upper surface of 3, a placing portion 3 a on which a person to be measured is placed is formed. In consideration of the strength of the weight scale 1 as a product, the main body 3 has the rectangular plate-like member (cover member) on the mounting portion 3a side made of the resin, and the rectangular plate-like member (bottom plate) on the opposite side. These may be combined to form a member made of metal.

  Further, as shown in FIG. 1, four electrode members 30 (energization electrodes 31 a and 32 a and measurement electrodes 31 b and 32 b) are held on the mounting portion 3 a of the main body 3, and these are mounted. They are spaced apart from each other on the surface of the portion 3a. The structure for holding the electrode member 30 can be selected as appropriate. For example, a recess (not shown) into which the electrode member 30 can be fitted is formed in the mounting portion 3a of the main body 3, and the electrode member 30 and the mounting portion are formed. It is preferable to fit and hold so that it is flush with 3a (see FIG. 1). The electrode member 30 becomes a structure of the measurement part 47 as mentioned later.

  Furthermore, as shown in FIG. 1, the placement unit 3 a of the main body 3 includes a display unit 21 and an operation unit 22 in addition to the electrode member 30. A foot switch 23 composed of a plurality of switches is disposed on the side surface of the main body 3. The display unit 21 mainly displays biological information, and employs a display using liquid crystal such as a full dot LCD (Liquid Crystal Display), for example. For example, a button type, a touch sensor type, a dial type, or the like can be used as the operation unit 22.

  The standing switch is disposed in a recess 41 provided on the side portion 5 of the main body 3 and has a push button 39 that can be pushed down. The push button 39 and the recess 41 constitute the malfunction prevention means of the first embodiment. The push button 39 can be expanded and contracted by an urging means such as a spring, and is dimensioned so as not to protrude out of the recess 41 even in the extended state. As long as the push button 39 is not depressed, the leaning switch is in an on state, power is supplied to operate the weight scale 1, and the weight scale 1 is in an activated state. When the push button 39 is pushed down, the power supply path is cut and the weight scale 1 is inactivated. In the case where the main body 3 is composed of a rectangular plate-like member (cover member) on the mounting portion 3a side and a rectangular plate-like member (bottom plate member) on the opposite side, the concave portion 41 is formed in any rectangular plate shape. It does not specifically limit whether it provides in a member, What is necessary is just to be comprised in either of the side parts 5 of the main body 3. FIG.

  As shown in FIG. 3, the display unit 21, the operation unit 22, the foot switch 23, and the measurement unit 47 are connected to a control unit (control circuit) 29 and control each operation. Further, a power source 51 and a storage unit (for example, a RAM (Random Access Memory)) 25 are connected to the control unit 29. As the power source 51, a battery or an external power source that supplies power for operating the scale 1 can be used.

  The measuring unit 47 of the scale 1 according to the present embodiment uses a known body weight measuring unit for measuring the body weight of the subject and a bioimpedance measuring unit for measuring the body fat percentage of the subject. That's fine.

  The weight measuring unit may use, for example, a load cell including a strain body made of a metal member that deforms in response to a load and a strain gauge attached to the strain body. By fixing the end portion to the main body 3 and fixing the movable end portion of the strain generating body to the leg portion 53, when the measurement subject is placed on the mounting portion 3a of the main body 3, the measurement subject's The body weight is measured by utilizing the fact that when the strain body is bent by a load, the strain gauge expands and contracts and the resistance value of the strain gauge changes.

  The bioelectrical impedance measurement unit includes an electrode member 30, a constant current supply unit (not shown) for applying a weak high-frequency constant current, and a voltage measurement unit (not shown in the drawing) for measuring the potential difference of the living body. And). The electrode member 30 includes current-carrying electrodes 31a and 32a and measurement electrodes 31b and 32b that can come into contact with the measurement subject's feet.

  The operation unit 22 is input means for inputting personal biometric information such as height, sex, and age, and setting items tailored to the individual. The input personal biometric information and setting items are stored in the storage unit 25 (for example, RAM (Random Access Memory)) or displayed on the display unit 21. The foot switch 23 is connected to the control unit 29 and sends a signal to the control unit 29 to turn on / off the biometric device, or store personal biometric information and setting items in the storage unit 25 in advance. If there is, personal biometric information and setting items can be called up. For example, when a plurality of measured persons use the scale 1, each of the plurality of foot switches 23 is assigned to each measured person, and the measured person presses the assigned foot switch 23, It is configured so that its own biometric information and setting items can be called.

  Here, the setting item is a setting item when the measurement subject (user) uses the scale 1. For example, the size of characters and symbols of biometric information displayed on the display unit 21 and the type of biometric information.

  The measuring unit 47 sends a signal related to the weight of the person to be measured to the control unit 29, and the weight is calculated by the control unit 29 based on the signal. The obtained weight is displayed on the display unit 21 or stored in the storage unit 25.

  In the present embodiment, the pair of energizing electrode 31a and measurement electrode 31b is disposed so as to contact the back of the left foot, and the pair of energizing electrode 32a and measurement electrode 32b is disposed so as to contact the back of the right foot. A weak constant current is applied from the constant current supply unit through the left and right foot conducting electrodes 31a and 32a, and bioimpedance is measured. Based on the signal indicating the bioimpedance acquired by the voltage measurement unit connected to the measurement electrodes 31b and 32b, the control unit 29 calculates the body fat percentage or the body fat mass. The body fat percentage obtained by calculation is displayed on the display unit 21 or stored in the storage unit 25.

  Next, with reference to FIG. 2, a stand 61 that holds the weight scale 1 in a standing manner will be described. The stand 61 is substantially L-shaped in a side view, and includes a plate-like base 63 that extends in the horizontal direction and a plate-like support 65 that extends from one end of the base 63 in the vertical direction. As shown in FIG. 2B, a convex portion 57 is provided on the upper surface 63 a of the base 63, that is, the surface in contact with the side portion 5 of the main body 3. The concave portion 41 and the convex portion 57 of the main body 3 have complementary shapes that can be fitted to each other. Therefore, when the side portion 5 of the placement portion 3 is placed so as to be engaged with the convex portion 57 on the base 63, the push button 39 is pushed down, and the supply of power is turned off.

  Further, when the concave portion 41 of the base 63 is placed so as to engage with the convex portion 57 in this way, the mounting portion 3 a of the main body 3 is dimensioned so as to be supported by the support portion 65. Accordingly, by adopting a configuration in which the convex portion 57 is fitted to the concave portion 41, a positioning function that the weight scale 1 is securely held by the stand 61 can be provided. In addition, by providing the push button 39 in the recess 41, it is possible to prevent the push button 39 from being unintentionally pressed during measurement of biological information.

  As shown in FIG. 3, a power source 51 that supplies power for operating the scale 1 and other components such as a display unit 21, a control unit 29, an operation unit 22, a storage unit 25, and a measurement unit 47. Are electrically connected via a push button 39. Therefore, when the push button 39 is depressed, the power supply from the power source 51 is turned off, and the scale 1 is not activated.

  On the other hand, when the push button 39 is not pressed down, the power from the power source 51 is supplied to the other components. Therefore, when the person to be measured presses the foot switch 23, the weight scale 1 is activated, and it becomes possible to perform measurements such as weight measurement.

  As described above, by adopting a configuration in which the weight scale 1 and the stand 61 are combined, it is possible to prevent a malfunction in which the power is erroneously turned on when standing on the stand 61. In addition, since the connection with the power source is mechanically disconnected, it is possible to prevent the standby power consumption of the scale 1 from being consumed.

  Further, in the first embodiment, the push button 39 as the malfunction preventing means is provided on one side of the main body 3 of the scale 1, but the present invention is not limited to this configuration. For example, a push button may be provided on each side portion or the placement unit upper surface 3a, and power supply may be turned off when any push button is pressed. Furthermore, when a push button is provided on the back surface 3b of the weight scale 1 and the main body 3 is installed in a state where it can be measured, the power supply is turned on by being pushed, and the power supply is turned on. In some cases, the power supply may be turned off when the button is not pressed.

  Next, a second embodiment in which the biometric apparatus according to the present invention is applied to a weight scale with a body fat scale will be described with reference to the drawings. 4 is a perspective view of a weight scale 101 with a body fat scale according to the second embodiment, FIG. 5 is a partial cross-sectional view illustrating a configuration example of the posture detection unit 141 according to the second embodiment, and FIG. FIG. 7 is a flowchart of the control system of the weight scale with body fat scale of FIG. 4. In addition, about the structure and function of the weight scale 101 which concerns on Embodiment 2, a different point from the weight scale 1 by 1st Embodiment shall be mainly demonstrated, and it demonstrates in detail about the component similar to 1st Embodiment. Is omitted.

  As shown in FIGS. 4 and 6, a weight scale 101 with a body fat scale (hereinafter referred to as a weight scale 101) is provided on a substantially box-shaped main body 103 and a back surface 103 b of the main body 103 as in the first embodiment. And a leg portion (not shown) for supporting the main body 103. Further, the main body 103 is provided with a malfunction prevention means 139 that activates or deactivates the biometric device based on the posture of the main body 103, and prevents the depression or malfunction of the main body side provided in the first embodiment. There is no stand-up switch to prevent it. The malfunction prevention means 139 in the present embodiment is configured by a control unit 129 built in the main body 103 and an attitude detection unit 141 (tilt sensor). As in the first embodiment, the main body 103 includes a placement unit 3a and a measurement unit 147 having electrode members 130 (conduction electrodes 131a and 132a and measurement electrodes 131b and 132b) for acquiring biological information. , A display unit 121, an operation unit 122, a foot switch 123, a storage unit 125, a control unit 129, a storage unit 25, a control unit 29, and a power source for supplying power for operating the scale (shown in the figure) And).

  As the attitude detection unit 141, a known tilt sensor can be used. For example, as shown in FIG. 5, a fixing member 141a fixed to the lower surface (back surface) of the placement unit 103a and one end of the fixing member 141a are separated from the fixing member 141a. And a strain sensing element 141c having a weight 141b attached to the other end thereof, and a strain detecting element 141d attached to the strain sensing element 141c, and the fixing member 141a is tilted together with the mounting portion 103a. The strain amount of the strain body 141c may be measured by the strain detection element 141d. Based on the amount of deflection measured by the strain detecting element 141d, the controller 129 determines whether the main body 103 is inclined.

  Next, the control system of the weight scale 101 will be described. As shown in FIG. 6, the control unit 129 is electrically connected to the posture detection unit 141, the display unit 121, the operation unit 122, the foot switch 123, the storage unit 125, and the measurement unit 147.

  When the foot switch 123 is pressed, a signal for turning on / off the weight scale 1 is sent from the foot switch 123 to the control unit 129. In addition, the control unit 129 that has received a signal related to posture information from the posture detection unit 141 determines whether or not the main body 103 is tilted, and puts the scale 101 into an activated state or an inoperative state. .

  6 shows the control unit 129, the storage unit 125, the posture detection unit 141, and the measurement unit 147 arranged inside the main body 103, but they are omitted in FIG.

  Below, the control process of the weight scale 101 is demonstrated with reference to FIG. First, when the foot switch 123 is pressed, the control unit 129 receives a signal for turning on the weight scale 101 (step S1). Next, the control part 129 acquires the signal regarding the attitude | position of the main body 103 from the attitude | position detection part 141 (step S2). Based on the signal relating to the posture, the control unit 129 determines whether or not the main body 103 is tilted with respect to a horizontal posture, that is, an appropriate posture for measuring biological information such as weight measurement (step S3).

  Specifically, if the angle of the main body 103 with respect to the horizontal plane is within a predetermined range, the main body 103 is determined to be in an appropriate posture, and if it exceeds the predetermined range, the main body 103 is in an inappropriate posture for measurement. It has come to be judged. When it is determined that the main body 103 is in the proper posture, the control unit 129 validates the signal from the foot switch 123 and puts the weight scale 101 into an operating state (step S4). When the weight scale 101 is activated, the functions of the operation unit 122, the measurement unit 147 for measuring body weight and bioelectrical impedance, the display unit 121, and the like can be activated.

  On the other hand, when the control unit 129 determines that the main body 103 is in an unsuitable posture for performing biological information measurement (step S3), the control unit 129 invalidates the signal from the foot switch 123, and the weight scale 101 is put into an inoperative state (step S5). Therefore, the functions of the operation unit 122, the measurement unit 147 for measuring body weight and bioelectrical impedance, the display unit 121, and the like do not operate.

  In the present embodiment, a tilt sensor is used as the posture detection unit 141 to determine whether the main body 103 is tilted. However, the present invention is not limited to this configuration. For example, the foot switch 123 may be used as the posture detection unit 141. In this case, if the state where the foot switch 123 is pushed down exceeds a predetermined time (for example, 30 seconds) without providing a tilt sensor (which can of course be used together), the main body 103 is The control unit 129 determines that the posture is not suitable for the measurement of the biological information, and the weight scale 101 is made inoperative. In addition, even when the main body 103 is in a horizontal state, if the foot switch 123 is pressed against an obstacle such as a wall for a predetermined time, the measured person does not intentionally press the weight scale 101. In other words, it is determined that the main body 103 is not in a posture suitable for measurement, and the weight scale 101 may be inactivated by the control unit 129.

  Further, when a plurality of foot switches 123 are provided as in the present embodiment, at least two foot switches 123 are pressed at the same time, and the control unit 129 that receives the signals does not indicate that the main body 103 is not in a posture suitable for measurement. It is good also as a structure which judges and puts the weight scale 101 into a non-operation state.

  As described above, according to the configuration of the second embodiment, when it is determined that the main body 103 is not in an appropriate posture for measuring biological information, the weight scale 101 is controlled not to operate. Therefore, the weight scale 101 malfunctions, and for example, it is possible to realize an easy-to-use weight scale without unintentionally consuming electric power.

  In the second embodiment, the control unit receives a signal to turn on the scale from the foot switch 123 and then determines whether the posture of the main body 103 is appropriate. However, the present invention is not limited to this configuration. . Regardless of whether or not the ON signal is received, it is possible to determine whether or not the posture of the main body is appropriate at all times or every predetermined time, and put the biometric device into an operating state or an inoperative state. In addition, instead of starting up the weight scale with a foot switch or the like, the biometric device is configured to perform initial setting of the biometric device every predetermined period and to start measurement immediately when the measurement subject uses (for example, A so-called step-on weight scale) can be configured so that the posture of the main body is appropriate before the execution of the initial setting is started.

  Moreover, in the said 2nd Embodiment, although it was set as the structure which acquires several biometric information, even if it is a weight scale which measures only a to-be-measured person's weight as single biometric information, it says that this invention is applicable. Not until.

  In the case of a configuration that prevents malfunctions in software as in the second embodiment, whether the switch is turned on and whether the tilt sensor emits a signal indicating a tilt greater than a predetermined value is determined by the microcomputer or the control unit. In order to monitor, it is necessary to flow a current constantly, which leads to battery consumption. However, as in the first embodiment, the power supply is mechanically turned off to prevent malfunction. Thus, unnecessary power consumption for the monitoring can be avoided.

  Furthermore, it is good also as a weight scale which combined 1st Embodiment and 2nd Embodiment. In this case, not only can the weight scale be turned off softly, but the weight scale can also be turned off mechanically. This prevents malfunction of the meter.

  The present invention can be embodied in many forms without departing from its essential characteristics. Therefore, it is needless to say that the above-described embodiment is exclusively for description and does not limit the present invention.

It is a perspective view of the weight scale with a body fat scale which concerns on 1st Embodiment of this invention. It is a figure which shows the state with which the weight scale with a body fat scale was hold | maintained at the stand, (a) is a side view, (b) is the position corresponding to the II-II line | wire of FIG. It is the expanded sectional view which cut | disconnected the IIb part by the surface parallel to a paper surface. It is a block diagram of the weight scale with a body fat scale of FIG. It is a perspective view of the weight scale with a body fat scale by 2nd Embodiment of this invention. It is a partial cross section figure which shows the structural example of the attitude | position detection part 141 by 2nd Embodiment of this invention. It is a block diagram of the weight scale with a body fat scale of FIG. It is a flowchart of the control system of the weight scale with a body fat scale of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Weight scale with a body fat scale 3, 103 Main body 3a, 103a Placement part 21, 121 Display part 22, 122 Operation part 23, 123 Foot switch 25, 125 Storage part 29, 129 Control part 39 Push button (malfunction Prevention measures)
41 Concavity (Malfunction prevention means)
47, 147 Measurement unit 61 Stand 139 Malfunction prevention means 141 Attitude detection unit

Claims (9)

A biometric apparatus for measuring biometric information of a measurement subject,
A mounting unit provided in a main body of the biometric device, on which the measurement subject is placed to measure biometric information;
A biological measurement apparatus comprising: a malfunction prevention means for bringing the biological measurement apparatus into an inoperative state when the biological measurement apparatus is not used.   The malfunction prevention means has a vertical switch for turning on and off the supply of power for operating the biometric device, and when the power supply is turned on by the vertical switch, the biometric device is activated. The biometric apparatus according to claim 1, wherein when the power supply is turned off, the biometric apparatus is in an inoperative state.   The biometric apparatus according to claim 2, wherein the leaning switch has a push button provided on a side portion of the main body, and when the push button is pushed, the supply of the electric power is turned off. .   A stand that can be held in a state where the main body is stood up is provided, and when the main body is held by the stand, the push button is pushed by the stand and the power supply is turned off. The biometric apparatus according to claim 3.   The push button is disposed in a recess provided in a side portion of the main body, and the stand has a convex portion having a shape complementary to the concave portion of the main body, and the convex portion has a convex portion in the concave portion. The biometric apparatus according to claim 4, wherein the main body is held by the stand in a state where the push button is pressed.   The malfunction prevention means includes a posture detection unit for detecting the presence or absence of inclination of the mounting unit, and a control unit that determines whether the mounting unit is tilted based on a signal from the posture detection unit. The control unit puts the biometric device into an inoperative state when the control unit determines that the mounting unit is tilted by the control unit. The biometric apparatus according to any one of 5.   The biometric apparatus according to claim 6, wherein the posture detection unit is a tilt sensor.   The malfunction prevention means includes a foot switch for turning on and off the biometric device, and a control unit that receives a signal from the foot switch. When the foot switch is pressed and held, the control The biometric apparatus according to any one of claims 1 to 7, wherein the unit makes the biometric apparatus inoperative.   The malfunction prevention means includes a plurality of foot switches for turning on and off the biometric device and a control unit that receives a signal from the foot switch, and when at least two of the foot switches are pressed The biometric apparatus according to any one of claims 1 to 8, wherein the control unit deactivates the biometric apparatus.

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