JPS6017046B2 - pedometer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pedometer that measures the number of steps taken when walking outdoors, etc., and relates to a so-called pedometer.

Conventional pedometers are mechanical, with a mass that moves according to the vertical acceleration of a person's walking, and a dial-type counter directly connected to the pedometer that totals the number of steps. It has the disadvantage of being heavy, and also has the disadvantage of not being very sensitive, such as not operating at very weak accelerations.

The present invention eliminates the above-mentioned drawbacks and provides a small, lightweight, and low power consumption pedometer that can also display the walking distance according to the stride length of the user. explain.

1 to 3 show embodiments of the present invention. In the figure, 1 and 1' are permanent magnets, 2 is a separator, 3 is a spring, 4a is a detailed magnetic wire, and 4b is a magnetic wire 4a.
5 is a tube that houses the above step count detector,
6 is a display, 7 is a circuit section, 8 is a battery, 9 is a case for storing the above, 10 is a mounting clip, and 11 is a switch. The permanent magnets 1, 1' and the separator 2 constitute a slider. Permanent magnets 1 and 1' are attached to the upper and lower surfaces of a separator 2 made of an insulating material, with different polarities facing each other. And this Tsuneko Numa has been remounted on top of Spring 3. The magnetic wire 4a and the coil 4b are attached to the wall of the cylinder 5 located in the middle part of the spring 3. The magnetic wire 4a is a rod-shaped magnetic body configured in the same circular shape, and the core has low coercive property against magnetization.
The outer shell covering the core has greater antimagnetic properties than the core, and both are magnetized in the opposite direction by an external magnetic field. A coil 4b is wound around this magnetic wire 4a. In the state shown in FIG. 1, both the core and the outer shell of the magnetic wire 4a are magnetized in the same direction, but when Tomoko Numa comes down and the permanent magnet 1 passes through the magnetic wire 4a, the core of the magnetic wire 4a The magnetization direction of is reversed.

The magnetization direction of the outer shell can also be reversed, but since the number of pulses generated in the coil 4b increases, only the magnetization direction of the core is reversed. This reversal generates a pulse in the coil 4b. When the permanent magnets 1 and 1' return to their original positions, the coil 4b
A pulse of opposite polarity is obtained. It is sufficient to count one of these positive and negative pulses. The detection means using the magnetic wire 4a and the coil 4b is advantageous because the reversal of the magnetization direction is performed sharply and a detection pulse with a large amplitude can be obtained. Therefore, the pedometer according to the present invention is attached to the human body with a clip 10, and the magnet 1
, 1' are displaced.

When magnet 1' passes in front of the magnetic wire and magnet 1 comes, the magnetic wire 4a is reversely magnetized left and right, and the coil 4
An induced voltage pulse is generated at b, and this pulse is integrated in the circuit section and displayed on the display 6. FIG. 3 is a block diagram of the circuit section.

4 is a detection unit consisting of a magnetic wire 4a and a coil 4b; 7a;
7b is a counter, 7c is a decoder, and 9 is a display.

The pulses generated by the detection section 4 are shaped by the waveform shaping section 7a, and the numerical value integrated by the counter 7b is converted into display characters by the decoder 7c and displayed on the display 9.

11 is a switch for resetting the integrated frequency of the counter 7c.

As described above, the frequency is integrated and displayed based on the acceleration caused by vibration with each step when a person walks.

Another embodiment is shown in FIG.

12 is a step length setting dial, and 13 is a step length display board.

FIG. 5 is a block diagram of this embodiment. 14 is an oscillator, 15 is an oscillation frequency adjuster, 16 is an arithmetic unit, 17 is a counter, and 19 is a mono-multivibrator for extending the pulse of the detection section as shown at 18 in FIG. 6a.

FIG. 6b shows the output waveform of the oscillator 14. This frequency can be varied by a frequency adjuster 15 connected to the step length setting dial 12. The arithmetic circuit 16 is the dark b of the pulse 18.
The pulse is measured and sent to the counter 17. This is displayed on the display 6 as a walking distance obtained by multiplying the stride length by the number of steps. Since the stride length is varied by the frequency adjuster 15, the number of pulses b between the pulses 18 changes depending on the stride length, and the walking distance is indicated accordingly. As described above, according to the present invention, since a detection unit consisting of a magnetic wire and a coil is used, a pulse with a large amplitude can be obtained in the coil, and this pulse does not need to be amplified, so power consumption can be reduced. If a liquid crystal is used as the display and a CMOS counter is used to integrate the pulses, the power switch can also be omitted, making the overall system smaller and smaller.
You can get a lightweight pedometer.

Furthermore, since an electrical detection means is used, the sensitivity is also good.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional front view of a pedometer in an embodiment of the present invention;
Figure 2 is a perspective view of the same, Figure 3 is a flock diagram of the pedometer,
FIG. 4 is a perspective view of a pedometer in another embodiment, FIG. 5 is a block diagram of the pedometer, and FIGS. 6a and 6b are waveform diagrams for explaining the pedometer. 1, 1'...Permanent magnet, 2...Separator, 3...Spring, 4a...Magnetic wire, 4b...Coil,
7b...Counter, 7c...Decoder, 6...Display device, 17...Counter, 16...Arithmetic unit. Figure 1 Figure 2 Figure 4 Figure 3 Figure 5 Figure 6

Claims (1)

[Claims] 1. A slider in which two permanent magnets are arranged with opposite poles facing each other with a gap between them, and a spring that supports this slider;
a detecting section configured by winding a coil around a magnetic wire in which the axial coerciveness of the core is smaller than the coerciveness of the outer shell, and the detecting section is configured to detect movement of the slider. . A pedometer comprising: an electric circuit for integrating pulse signals obtained from the coil of the detection section; and a display for displaying the signals obtained by the electric circuit. 2. A pedometer according to claim 1, comprising a setting device that can set the stride length of a person, and an arithmetic circuit that multiplies the number of steps and the stride length.