JPH09223214A - Vertical movement detector, pedometer, activity monitor and calorimeter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure the number of steps without caring about a posture direction by providing plural sensors for detecting vibration in a vertical direction inside a main body while making attaching directions different and selecting one of the output signals of the sensors based on the detection signals of an angle detection sensor for detecting the direction of the main body. SOLUTION: Acceleration sensors 3 and 4 and the angle detection sensor 5 are mounted to a substrate 2 arranged inside the main body of this pedometer, the acceleration sensor 3 is arranged in a horizontal direction and the acceleration sensor 4 is arranged in the vertical direction. Signals for indicating the inclination state of the pedometer main body are inputted to an MPU 16 by the angle detection sensor 5, and when it is judged that the inclination of the pedometer main body is in the horizontal direction in the MPU 16 for instance, a current is supplied from the output port of the MPU 16 to the power source of an analog amplifier circuit 11 and a comparator 12 relating to the acceleration sensor 3 in the horizontal direction. At this time, the current is not supplied to the power source of the analog amplifier circuit 14 and the comparator 15 relating to the acceleration sensor 4 in the vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical movement detecting device for detecting body movements during walking or running, a pedometer for measuring the number of steps using the vertical movement detecting device, an activity monitor and a calorimeter.

[0002]

2. Description of the Related Art A pedometer is generally provided with a main body, an acceleration sensor provided in the main body for detecting a step number signal due to body movement, and a step counting means for counting the number of steps based on the output of the acceleration sensor. The number of steps is measured from the body movement (vertical movement) associated with walking (or running).

By the way, when the vertical movement is detected, the upward movement and the downward movement greatly change depending on the condition of the walking place, the shoes worn, the way of walking, etc., so either one of the upward movement and the downward movement is performed. The conventional pedometer that counts the number of steps by detecting only the output corresponding to 1 has a problem that the number of steps cannot be accurately measured. In order to solve this problem, for example, a "pedometer" described in Japanese Patent Application Laid-Open No. 2-161932 (Prior Art) includes an upper detection unit and a lower detection unit that detect an upward acceleration and a downward acceleration, respectively. And a selection unit for selecting which of the upper and lower detection units the walking signal generated from which is to be counted,
The number of steps can be accurately measured regardless of the walking location, shoes, walking style, etc.

On the other hand, for example, the "pedometer" described in JP-A-1-287417 (prior art) uses a piezoelectric element having a one-sided support structure as a sensor, and the free end of this sensor has a weight and is fixed. An acceleration sensor whose end is supported by a shock absorbing member is used.

[0005]

However, in all of the conventional pedometers including the pedometer described in the above-mentioned prior art, the pedometer main body having the built-in acceleration sensor is mounted on the belt of the pants or the skirt. Since the number of steps is counted by using the belt, there is a problem that the main body cannot be worn and the number of steps cannot be measured in clothes that do not require a belt. Even if the main body is attached to the belt, the pedometer has a certain size and thickness, so that the pedometer stands out and it is easy for others to understand that the pedometer is measuring the pedometer. Even if you cover your clothes with clothes, there is a problem that the pedometer part swells and the appearance is bad, and the fashionability is impaired.

On the other hand, in the pedometer as described in the above-mentioned prior art, since it is necessary to bond the weight and the piezoelectric element to the weight case, there is a problem that the assemblability is poor and the processing cost is high. Further, when it is necessary to detect a plurality of virtual axis directions, the same acceleration sensor needs to be individually arranged in each axis direction, which causes a problem of high cost.

Therefore, the present invention has been made by paying attention to such a problem, and can be carried out without paying attention to the posture direction.
An object of the present invention is to provide a vertical movement detecting device, a pedometer, an activity monitor, and a calorimeter, which can measure the number of steps, improve the assemblability, and reduce the cost.

[0008]

The vertical movement detecting device according to claim 1 of the present application is arranged in the main body so that the mounting directions thereof are different from each other, and outputs according to the vertical vibration component. A plurality of sensors that output signals, an angle detection sensor that is provided in the main body and detects the orientation of the main body, and one of the output signals of the plurality of sensors based on the detection signal of the angle detection sensor And selecting means for selecting.

In the vertical movement detecting device, when the main body moves up and down, each of the plurality of sensors outputs an output signal according to the vertical vibration component, and the angle sensor detects the angle of the main body. One of the output signals of the plurality of sensors is selected based on the angle signal detected by this angle sensor. Vertical movement can be detected regardless of the orientation of the device body. Claim 2
The pedometer according to (1) is provided in the main body such that the mounting directions thereof are different from each other, is provided in the main body with a plurality of sensors that output an output signal according to a vertical vibration component, and detects the orientation of the main body. Angle detection means, selection means for selecting one of the output signals of the plurality of sensors based on the detection signal of the angle detection means, and output signal of the sensor selected based on the selection of the selection means And a step counting means for counting the number of steps.

This pedometer uses the vertical movement detecting device according to claim 1, and similarly selects one of the output signals of the plurality of sensors based on the angle signal detected by the angle detecting means. To do. The number of steps is counted from the output signal of the selected sensor. This pedometer can count the number of steps regardless of the orientation of the main body. The wearing place of the main body is not limited to the waist belt,
For example, walking (or running) in your pocket, bag, etc.
It is possible to measure the number of steps of anything that can be possessed at times.

The plurality of sensors that output an output signal according to the vertical vibration component are, for example, acceleration sensors (claim 3). The plurality of acceleration sensors are, for example, two acceleration sensors each having a lever supported in a cantilever manner and a piezoelectric element attached to the lever, and the levers are arranged so as to face each other at right angles. (Claim 4).

The acceleration sensor may include, for example, a weight, a piezoelectric element, a weight case attached to one end of the piezoelectric element, and a support member attached to the other end of the piezoelectric element. Good (Claim 5). The pedometer according to a sixth aspect is the pedometer according to the second aspect, wherein an output signal of a tilt angle of the main body detected by the angle detection sensor at regular intervals changes, and the changed output signal is set in advance. This is to change the acceleration sensor to be used when the number of consecutive cycles continues.

A pedometer according to claim 7 is the pedometer according to claim 2.
The step count counting means has an analog circuit, and controls the power supply of the analog circuit for amplifying the output signal of the acceleration sensor based on the output signal of the angle detection sensor. A pedometer according to an eighth aspect is the pedometer according to the seventh aspect, wherein the analog circuit has a feedback circuit section and a diode is provided in the feedback circuit section.

A pedometer according to claim 9 is the pedometer according to claim 7.
In the above-mentioned one, the analog circuit has a feedback circuit section, and the feedback circuit section is provided with an analog switch. A pedometer according to a tenth aspect is the pedometer according to the second aspect, wherein the angle detecting means includes a plurality of conductive pins and a conductive ring surrounding the plurality of pins.

A pedometer according to an eleventh aspect of the present invention is a sensor provided in the main body, which outputs an electric signal according to a vertical vibration component, and a step counting means for counting the number of steps based on the output signal of the sensor. And the sensor outputs the output signal regardless of the direction of the main body. A pedometer according to a twelfth aspect includes an acceleration sensor which is provided in the main body and outputs an electric signal according to a vertical vibration component, and a pedometer for counting the number of steps based on the output signal of the acceleration sensor. The acceleration sensor is provided with a lever pivotally fixed about a support shaft, a piezoelectric element attached to the lever, and a weight attached to the support shaft in the vicinity of the support shaft for keeping the lever horizontal. And the acceleration sensor outputs an output signal from the piezoelectric element regardless of the direction of the main body by orienting the lever in the horizontal direction regardless of the direction of the main body.

A pedometer according to a thirteenth aspect is arranged such that the directions thereof are different from each other, and a plurality of sensors for outputting an electric signal according to a vibration component in the vertical direction, and a pedometer based on the output signals of the sensors. And a step counting means for counting. Further, the pedometer according to claim 14 is provided with a plurality of sensors which are arranged so that directions thereof are different from each other and which output an electric signal according to a vibration component in a vertical direction, and one of output signals of the plurality of sensors. It is provided with a selecting means for selecting and a step counting means for counting the number of steps based on the selection of the selecting means.

The activity monitor according to a fifteenth aspect is arranged such that two acceleration sensors arranged in the main body and cantilevered so as to be perpendicular to each other, and the vibration of the two acceleration sensors having the larger vibration. And a selection means for extracting an output. A calorimeter according to claim 16 is
Two acceleration sensors that are arranged in the main body and cantilevered so as to be perpendicular to each other, an angle detection sensor that is provided in the main body, and detects the orientation of the main body, and based on the output of the angle detection sensor Then, a selection means for taking out the vibration output of the larger vibration of the two acceleration sensors, and a calculation means for calculating the calorie consumption based on the output of the selection means are provided.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. The internal structure of the main body of the pedometer according to the first embodiment is briefly shown in FIG. Inside the main body 1 of the pedometer, a substrate 2 having a shape as shown in the drawing is arranged, and two acceleration sensors 3 and 4 and an angle detection sensor 5 are mounted on the substrate 2. In this embodiment, the acceleration sensors 3, 4
Are both cantilevered and swingably supported,
Two virtual axis directions perpendicular to each other (horizontal and vertical)
, The acceleration sensor 3 is arranged in the horizontal direction, and the acceleration sensor 4 is arranged in the vertical direction.

A block diagram of the structure of this pedometer is shown in FIG. The output signal of the acceleration sensor (1) 3 is amplified by the analog amplifier circuit (1) 11 of the analog circuit 10 and input to the MPU 16 via the comparator (1) 12. Similarly, the output signal of the acceleration sensor (2) 4 is amplified by the analog amplifier circuit (2) 14 of the analog circuit 13, and input to the MPU 16 via the comparator (2) 15. or,
The output signal of the angle detection sensor 5 is directly input to the MPU 16. As can be seen from this block diagram, the output signals of the acceleration sensors 3 and 4 are respectively supplied to the dedicated analog circuit 1
It is configured to be taken into the MPU 16 via 0 and 13.

In the first embodiment, the two acceleration sensors 3 and 4 are arranged in the horizontal direction and the vertical direction, respectively. However, the acceleration sensors 3 and 4 are arranged in a plurality of virtual axis directions at equal angular intervals from the center. An acceleration sensor may be arranged. For example, three acceleration sensors may be arranged at an angular interval of 120 degrees from the center. An example of the configuration of the acceleration sensor used in the pedometer according to the second embodiment is shown in FIG. 3 [exterior perspective view (a) and side view (b)] and FIG. 4 (exploded perspective view). In the acceleration sensor 20 shown here, the weight case 22 is attached to the one end 21a side of the piezoelectric element 21, and the other end 21 is attached.
The support member 23 is attached to the b side. The weight 24 and the one end 21 a side of the piezoelectric element 21 are press-fitted into the weight case 22, and the other end 21 b side of the piezoelectric element 21 is press-fitted into the support member 23. Further, the support member 23 is press-fitted into the fixture 25, and the fixture 25 is fixed to the pedometer main body by a screw 26 at a proper position.

Such an acceleration sensor 20 is incorporated in a pedometer as shown in FIG. 5, for example. Here, the acceleration sensor 20 is fixed by a fixture 25 in the main body case 30 of the pedometer so that the piezoelectric element 21 faces the horizontal direction, and the piezoelectric element 21 is connected to the substrate 31 by the lead wire 32. The substrate 31 is provided with a display 33 and a switch 34.

By the way, in the case of a pedometer provided with a plurality of acceleration sensors, the acceleration sensors are arranged in a plurality of virtual axis directions at equal angular intervals from the center, but especially when two acceleration sensors are used. , Are arranged in two virtual axis directions (horizontal direction and vertical direction) which are perpendicular to each other. In that case, the two acceleration sensors are preferably configured as shown in FIG.

In FIG. 6, two acceleration sensors 40a and 40a are provided.
0b are arranged in a horizontal direction and a vertical direction to be integrated. That is, in the acceleration sensors 40a and 40b, elastic plates (for example, shim members) 41a, which extend horizontally and vertically from the fulcrum P where one end side is integrated as a fixed end, respectively.
41b, piezoelectric elements 42a and 42b attached to the elastic plates 41a and 41b, and weights 43a and 43b provided on the other end side of the elastic plates 41a and 41b. Elastic plate 4
1a and 41b can be formed, for example, by bending one strip-shaped elastic plate at a right angle, and the bending point serves as a fulcrum P.

With such a configuration, a plurality of acceleration sensors can be provided at a low price, as compared with the case where the acceleration sensors are individually arranged in a plurality of virtual axis directions.
Although FIG. 6 shows an example of two acceleration sensors,
When using more than one acceleration sensor, that is, when detecting accelerations in the directions of three or more axes, a corresponding number of elastic plates may be provided radially from the fulcrum P.

7 and 8 show an example of the configuration of the acceleration sensor used in the pedometer according to the third embodiment and an example of attachment to the pedometer main body. Here, bearings 51 and 52 are fixed to a pair of opposing walls of the pedometer main body 50, respectively.
A shaft (+ pole) 53 and a shaft (-pole) 54 are supported by 52, and an acceleration sensor 60 is provided so as to project in a direction perpendicular to the axial directions of the shafts 53 and 54. However, the acceleration sensor 60 and the negative pole shaft 54
Are electrically insulated. The acceleration sensor 60 has a strain gauge 61, and a weight 62 is attached to the tip thereof. In addition, the shafts 53 and 54 which are fulcrums of the acceleration sensor 60
Of these, a weight 55 is attached to the negative pole shaft 54 by a weight 62.

As a result, the acceleration sensor 60 has the axis 5
Since the weight 55 is located in the vertical direction (downward) regardless of the direction of the main body 50, the acceleration sensor 60 is always supported by a horizontal cantilever. Keep (parallel to the ground). In this case, since the acceleration sensor 60 is rotatable by 360 degrees, one acceleration sensor is sufficient, and the angle detection sensor used in the pedometer of the first (and second) embodiment is unnecessary. Is.

Next, FIG. 9 shows an example of the form of the angle detecting sensor 5 in the pedometer of the first embodiment. The angle detection sensor shown in FIG. 9 has four conductive pins arranged equidistantly from the center, and these pins are located on the inner side and are rotatable around the pins to come into contact with the pins. And a conductive ring 70 disposed on the. Of the four pins, the pin and the pin are electrically connected to each other. It should be noted that the pins (1) to (4) are fixed in a protruding manner on a substrate incorporated in the pedometer main body.

Here, when the pedometer main body rotates counterclockwise, as shown in FIG. 9, the four pins to rotate in the same manner. In the states of A and B of FIG. 9, the ring 70 contacts the pin and all four pins are electrically connected, so it can be determined that the main body is oriented in the horizontal direction. On the other hand, in the C, D, and E states of FIG. 9, the ring 70 only contacts the pins, and in the F and G states, the ring 70 contacts the pins, both of which are electrically connected to the pins. Since it is not connected, it can be determined that the main body is oriented in the vertical direction. This makes it possible to detect whether the main body is inclined in the horizontal direction or in the vertical direction. Of course, the same applies when the main body rotates clockwise.

In FIG. 2, a signal indicating the tilted state of the pedometer main body is input to the MPU 16 by the angle detection sensor 5 configured as shown in FIG. For example, if the MPU 16 determines the inclination of the pedometer main body in the horizontal direction, a current is supplied from the output port of the MPU 16 to the power supplies of the analog amplifier circuit 11 and the comparator 12 associated with the horizontal acceleration sensor 3. At this time, the vertical acceleration sensor 4
No current is supplied to the power supplies of the analog amplifier circuit 14 and the comparator 15 associated with the. On the contrary, if the inclination of the pedometer body is determined to be the vertical direction by the MPU 16, the MPU1
Current is supplied from the output port of 6 to the power supplies of the analog amplifier circuit 14 and the comparator 15, but no current is supplied to the power supplies of the analog amplifier circuit 11 and the comparator 12. In this way, the power supplies of the analog circuits 10 and 13 are controlled according to the output of the angle detection sensor 5.

In connection with the power supply control of the analog circuits 10 and 13, when the acceleration sensor to be used is changed, that is, when the current is cut off from the analog circuit, the quick response performance is secured. In order to achieve this, it is desirable to minimize the rise time during power supply. For example, in the circuit as shown in FIG. 10, when no signal is input, the reference voltage V1 is output to V _OUT . When power is supplied to the operational amplifier without the diode D, it takes several seconds for V _OUT to reach V 1. This is because the capacitor C1 is used to increase the amplification factor in the low frequency region.
This is because the constant of 1 and the constant of the resistor R2 become large, so that the charging time to the capacitor C1 becomes long. As a result,
The rise time when power is supplied becomes longer.

Therefore, by wiring the diode D as shown in FIG. 10, the capacitor C1 is charged through the diode D without passing through the resistor R2, so that the charging time is shortened and the power is supplied at the time of power supply. The rise time becomes 1/2 or less. Instead of the diode D, an analog switch SW1 controlled by the MPU may be arranged as shown in FIG. In this case, if the analog switch SW1 is kept in the ON state for a certain period of time after the power supply to the amplifier circuit is turned on, the charging time is shortened and the rising time at the time of power supply is shortened by the same operation as described above.

The angle detection processing operation of the pedometer according to the first embodiment will be described with reference to the flow charts of FIGS. 12 and 13 and the timing chart of FIG. Of course, prior to the step count measurement, the pedometer main body 1 is attached to a belt or put in a pocket, a bag, or the like. First, in step (hereinafter abbreviated as ST) 1, it is asked whether it is a processing timing,
If NO, the process ends. If YES, the circuit power of the angle detection sensor 5 is turned on (ST2). Here, the processing timing is, for example, 250 ns (sampling 4 Hz).
The angle detection process is performed for each. Angle detection sensor 5
Is output to the MPU 16, the MPU 16 reads the signal as data D (ST3), and then the circuit power of the angle detection sensor 5 is shut off (ST4). At the processing timing, the angle detection sensor 5 is turned on, the data D is extracted, and then the angle detection sensor 5 is turned off in order to reduce current consumption.

At the next step ST5, it is judged whether or not the acceleration sensor 3 is used, and if so, it is judged whether the read data D is low (ST6). If this is YES, the counter i ≧ 4. Determine whether (ST
7) If this is also YES, the used acceleration sensor is changed to the acceleration sensor 4 (ST10), the counter i is initialized to 0 (ST11), and the process ends. That is, the output signal of the inclination angle of the main body detected by the angle detection sensor 5 at regular intervals changes, and the changed output signal continues for a preset number of cycles (here, four times). To change. If NO in ST6, the counter i is set to 0 (ST8), and if NO in ST7, the counter is set to i = i + 1 (ST9), and the processing ends.

On the other hand, if NO in ST5, the data D is H
It is determined whether or not i (ST12), and if it is YES, it is determined whether or not the counter i ≧ 4 (ST13).
If it is ES, the acceleration sensor used is changed to the acceleration sensor 3 based on the above reason (ST16), and the counter i = 0.
Then (ST11), the process ends. NO in ST12
In the case of, the counter i is set to 0 (ST14), and in the case of NO in ST13, the counter is set to i = i + 1 (ST15), and the processing ends.

As can be seen from the processing of the above flow diagram, M
The PU 16 determines, based on the data D from the angle detection sensor 5, which of the acceleration signals in the horizontal direction or the vertical direction is to be selected, and counts the number of steps according to the output signal from the selected acceleration sensor. . Further, when the angle change by the angle detection sensor 5 is continuously detected a predetermined number of times (4 times), since the acceleration sensor to be used is changed, the signal (noise) of the angle detection sensor due to body movement such as walking is changed. It is possible to cancel and prevent erroneous recognition of the angle detection sensor 5 (see FIG. 14).

Although each of the above embodiments has been described with respect to the pedometer, as another embodiment of the present invention, the pedometer is arranged in the main body so that the mounting directions thereof are different from each other, and the output signal according to the vertical vibration component is output. A plurality of sensors (for example, the acceleration sensors 3 and 4 in FIG. 1) to be output, and provided in the main body,
An angle detection sensor (for example, FIG.
The vertical movement detecting device can be constituted by the angle detecting sensor 5) and the selecting means for selecting one of the output signals of the plurality of sensors based on the detection signal of the angle detecting sensor.

Further, as another embodiment of the present invention, the two acceleration sensors specifically described in the pedometers of the above embodiments, that is, the two acceleration sensors, which are arranged in the main body and cantilevered so as to be perpendicular to each other. An activity monitor is composed of a single acceleration sensor and a selection means for taking out the vibration output of the larger vibration of the two acceleration sensors. For example, various motions such as a vertical movement of a person can be performed by the two acceleration sensors. It is possible to monitor the activity status of a person by detecting and outputting the vibration output of the larger vibration, calculating the exercise amount, and displaying or printing out the activity amount, and also displaying the living activity index and its rank based on the exercise amount.

Further, as another embodiment of the present invention, the two acceleration sensors specifically described in the pedometers of the above embodiments, that is, the two acceleration sensors, which are arranged in the main body and cantilevered so as to be perpendicular to each other. Acceleration sensors, an angle detection sensor provided in the main body for detecting the orientation of the main body, and a vibration output of one of the two acceleration sensors having a larger vibration based on the output of the angle detection sensor. A calorimeter composed of a selecting means for taking out and an operating means for calculating the calorie consumption based on the output of the selecting means is realized, and calorie consumption is calculated from the vibration output from the selecting means, and the calorie is calculated within a fixed time. The total calorie consumption can be calculated.

[0039]

According to the invention of claim 1, the vertical vibration component can be detected regardless of the orientation and posture of the main body. Further, claim 2, claim 3, claim 4, claim 1
According to the inventions according to claim 1, claim 12, claim 13, and claim 14, the vertical vibration component can be detected regardless of the orientation and posture of the main body, so that the mounting location of the main body is limited to the waist belt. There is no need to take the pedometer, and even if you put the pedometer in your clothes or pants pocket or bag, you can measure your steps.

According to the invention of claim 5, since the acceleration sensor having a simple structure is adopted, the assembling property is improved and the processing cost is reduced. Further, according to the invention of claim 6, it is possible to prevent erroneous recognition of the tilted state of the main body (that is, erroneous recognition of the angle detection sensor). According to the invention of claim 7, the current consumption in the analog circuit can be reduced, and the life of the power supply can be extended.

According to the inventions of claims 8 and 9, the rise time of the analog circuit can be shortened. According to the fifteenth aspect of the invention, the activity status of the living body can be accurately monitored regardless of the orientation and posture of the main body. According to the invention of claim 16,
Since the momentum of the living body can be measured regardless of the orientation and posture of the main body, it is possible to obtain an accurate calorie consumption.

[Brief description of drawings]

FIG. 1 is a diagram briefly showing an internal structure of a main body of a pedometer according to a first embodiment.

FIG. 2 is a block diagram showing a configuration of a pedometer according to the first embodiment.

FIG. 3 is an external perspective view (a) and a side view (b) of an acceleration sensor in a pedometer according to a second embodiment.

FIG. 4 is an exploded perspective view of the acceleration sensor of FIG.

5 is a diagram showing a state in which the acceleration sensor of FIG. 3 is incorporated in a pedometer main body.

FIG. 6 is a diagram showing an example in which two acceleration sensors are integrated.

FIG. 7 is an external perspective view of an acceleration sensor in a pedometer according to a third embodiment.

8 is a diagram showing a state in which the acceleration sensor of FIG. 7 is incorporated in a pedometer main body.

9A and 9B are diagrams for explaining a form example of an angle detection sensor in the pedometer according to the first embodiment and an operation thereof.

FIG. 10 is a circuit diagram showing an example of an analog circuit associated with an angle detection sensor in the pedometer according to the first embodiment.

FIG. 11 is a circuit diagram showing another example of the analog circuit associated with the angle detection sensor in the pedometer according to the first embodiment.

FIG. 12 is a flowchart showing an example of an angle detection processing operation of the pedometer according to the first embodiment.

FIG. 13 is a flowchart following FIG. 12;

FIG. 14 is a timing chart of angle detection processing of the pedometer according to the first embodiment.

[Explanation of symbols]

 1 Pedometer main body 2 Substrate 3,4 Acceleration sensor 5 Angle detection sensor 10,13 Analog circuit 20,60 Acceleration sensor 21 Piezoelectric element 22 Weight case 23 Support material 24,55,62 Weight 41a, 41b Elastic plate 42a, 42b Piezoelectric element 43a, 43b weight

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shinya Tanaka 24 Yamanouchi Yamanoshitamachi, Ukyo-ku, Kyoto City Omron Life Science Research Institute Co., Ltd.

Claims (16)

[Claims] 1. A plurality of sensors which are arranged in the main body such that the mounting directions thereof are different from each other, and which output signals according to vertical vibration components, and an angle which is provided in the main body and detects the orientation of the main body. An up-and-down movement detection device comprising a detection sensor and a selection unit that selects one of the output signals of the plurality of sensors based on a detection signal of the angle detection sensor. 2. A plurality of sensors which are arranged in the main body such that the mounting directions thereof are different from each other, and which output signals according to vertical vibration components, and an angle which is provided in the main body and detects an orientation of the main body. Based on the detection means, the selection means for selecting one of the output signals of the plurality of sensors based on the detection signal of the angle detection means, and the output signal of the sensor selected based on the selection of the selection means. A pedometer provided with a step counting means for counting the number of steps. 3. A plurality of acceleration sensors, which are arranged in the main body such that the mounting directions are different from each other, and which output an electric signal according to a vertical vibration component, and a plurality of acceleration sensors which are provided in the main body and detect the direction of the main body. Angle detecting means, selecting means for selecting one of the output signals of the plurality of acceleration sensors based on the detection signal of the angle detecting means, and the acceleration sensor selected based on the selection of the selecting means. A pedometer including: a step counting means for counting the number of steps from an output signal. 4. The plurality of acceleration sensors each include a cantilevered lever and a piezoelectric element attached to the lever, and two accelerations arranged so that the levers are oriented in a direction perpendicular to each other. The pedometer according to claim 2, comprising a sensor. 5. The acceleration sensor includes a weight, a piezoelectric element, a weight case attached to one end of the piezoelectric element, and a support member attached to the other end of the piezoelectric element. The pedometer according to claim 2. 6. When the output signal of the tilt angle of the main body detected by the angle detection sensor at regular intervals changes, and the changed output signal continues for a preset number of cycles,
The pedometer according to claim 2, wherein the acceleration sensor used is changed. 7. The step counting means has an analog circuit,
The pedometer according to claim 2, wherein a power supply of the analog circuit that amplifies an output signal of the acceleration sensor is controlled based on an output signal of the angle detection sensor. 8. The pedometer according to claim 7, wherein the analog circuit has a feedback circuit section, and a diode is provided in the feedback circuit section. 9. The pedometer according to claim 7, wherein the analog circuit has a feedback circuit section, and the feedback circuit section is provided with an analog switch. 10. The pedometer according to claim 2, wherein the angle detecting means comprises a plurality of conductive pins and a conductive ring surrounding the plurality of pins. 11. A sensor provided in the main body, which outputs an electric signal according to a vertical vibration component, and a step counting means for counting the number of steps based on the output signal of the sensor, wherein the sensor is the main body. A pedometer which outputs the output signal regardless of the direction. 12. An acceleration sensor provided on the main body, which outputs an electric signal according to a vertical vibration component, and a step counting means for counting the number of steps based on the output signal of the acceleration sensor. A lever pivotally fixed about a support shaft, a piezoelectric element mounted on the lever, and a weight mounted near the support shaft for keeping the lever horizontal, A pedometer in which the acceleration sensor outputs an output signal from the piezoelectric element regardless of the direction of the main body by orienting in a horizontal direction regardless of the direction of the main body. 13. A plurality of sensors, which are arranged so that directions thereof are different from each other, and which output an electric signal according to a vertical vibration component, and a step number counting means for counting the number of steps based on an output signal of the sensor. Pedometer. 14. A plurality of sensors which are arranged so that directions thereof are different from each other, and which output an electric signal according to a vibration component in a vertical direction, and a selection means for selecting one of output signals of the plurality of sensors. A pedometer including: a step counting means for counting the number of steps based on the selection made by the selecting means. 15. An acceleration sensor, comprising: two acceleration sensors arranged in a main body and supported in a cantilever manner so as to be perpendicular to each other; and a selection means for extracting a vibration output of one of the two acceleration sensors having a larger vibration. Activity monitor. 16. An acceleration sensor, which is disposed in the main body and is cantilevered so as to be perpendicular to each other, an angle detection sensor which is provided in the main body, and which detects the orientation of the main body, and the angle detection sensor. A calorimeter provided with a selecting means for taking out the vibration output of the larger vibration of the two acceleration sensors based on the output of the sensor, and a calculating means for calculating the calorie consumption based on the output of the selecting means. .