JP3535806B2 - Pedometer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] The present invention relates to a camera or the like.
Use a tilt detector to detect the tilt by attaching
Related to the pedometer to generate. [0002] The pedometer is generally used for walking.
And generates a walking signal. FIG.
Shows a block diagram of the walking signal generator of the conventional pedometer.
You. The walking signal generator is in contact with the spring b with the weight a.
Place electrode c close to each other and turn spring b and contact electrode c
The wiring is connected to the road d. When you walk with this pedometer on your waist,
Each time the spring b vibrates up and down and walks, the spring b and the contact electrode c
Contact. The number of times that the spring b contacts the contact electrode c is
Count and count the steps. A weight a and a spring used in a walking signal generator
b is such that the spring b moves up and down once each time a person steps forward
It is necessary to increase the weight of the weight a and the length of the spring b to some extent.
It is necessary. For this reason, if the mounting space becomes large,
There was a problem. The contact electrode c is located above and below the spring b.
Do not obstruct movement and do not cause poor contact.
Need to be placed. For this reason, the contact electrode c is placed at an appropriate position.
Assembly accuracy required to be installed in the factory was required. Also conventional walking
Since the signal generator uses such special parts, cost
Was overpriced. On the other hand, it is attached to a camera or the like to detect inclination.
High-quality, low-cost parts
It is commercially available as a product. This tilt detector is
Normal position, lower left vertical position, lower right vertical position, downward, upward, etc.
Direction of the camera
Of gravity due to the exposure control of the
Performs lens drive control that is affected. [0005] The tilt detector is rotatably connected to the inside of the container.
It accommodates a point ball and arranges contact electrodes on the front, rear, left and right of the contact ball.
I have. When the container is tilted, the contact ball rolls and is placed in front, back, left and right
Contacts one of the contact electrodes
Therefore, the front, rear, left and right inclination directions can be detected. This tilt detector
Is not only tilted, but also vibrated
The contact ball rolls and turns the switch on and off.
Therefore, it is simple enough to accommodate the contact electrode and the contact ball in the container.
Detecting vertical movement by walking using a simple structure tilt detector
You can know. This tilt detector is small and light.
It does not require a large mounting space because of its volume. [0006] Therefore, the present invention is to walk a commercially available tilt detector.
Easy to assemble by applying to signal generator
To provide a compact and low-cost pedometer
It was done for the purpose. [0007] In order to achieve the above object,
For this purpose, the present invention is configured as follows. That is,ContentInsideTurn toMoveable sphere accommodated
Touch the sphere and activate the switchContact
Touch switchWhen,ThisBy touch switch on / off
A counting circuit that counts the number of input pulses
From when the input pulse turns on until the specified time elapses.
When the count value of the counting circuit is larger than a predetermined value,
A step counting circuit for adding 1 to und
Pedometer characterized byIt is. [0009] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment will be described. FIG. 1 is a block diagram of a pedometer embodying the present invention.
Fig. The pedometer measures the input circuit 2 of the tilt detector 1.
To the input circuit 2 and the input / output port.
Connect to the MPU 5 via the port 4. FIGS. 2 and 3 are a plan view and a side view of the tilt detector 1. FIG.
FIG. The tilt detector 1 is located at a corner of the insulating case 11.
Four contact electrodes 12 are embedded in the corners, and one end is a case 11.
And the other end is exposed outside the case 11. Case
A contact ball 13 is accommodated in the case 11 so that it can roll freely.
The contact ball 13 is locked inside the upper lid 14 and the bottom lid 1
A recess 16 is provided. The contact electrode 12 inside the case 11 is a contact ball.
13 together with a contact switch.
Sometimes switch on when it comes into contact with the contact ball 13,
When one or both are separated from contact ball 13, switch
Switch off. The contact electrode 12 outside the case 11
External connection terminal for touch switch. When attaching the tilt detector 1 to the pedometer
Is installed at an angle of 45 ° and the outside of the case 11
The contact electrode 12 is cross-connected between the load resistance R and the ground.
You. The input circuit 2 is a CR integration circuit or a free circuit.
It is composed of a flip-flop latch circuit, and the contact ball 13 is a contact
Chattering that occurs when contacting / separating from electrode 12
To eliminate the effects of The counting circuit 3 has a contact point after chattering processing.
ON / OFF of the contact switch composed of the electrode 12 and the contact ball 13
Counts input pulses generated by turning off. Ma
Also, the counter is reset by the control signal from MPU5.
To The pedometer embodying the present invention has the above configuration.
By turning on and off the contact switch of the tilt detector 1.
The number of steps is measured by counting the input pulses generated by the operation.
FIGS. 4 (a) and 4 (b) show vertical acceleration changes due to walking.
And turning on and off the contact switch of the tilt detector 1
4 shows a timing chart of input pulses generated by the above. Addition
The speed is such that a big wave is generated every time you start walking and step on your foot.
And a small repetitive wave is generated at each landing. Meanwhile, static
At the time of stopping and when starting walking and stepping on the foot, the contact ball 13
Penetrates between the adjacent contact electrodes 12 so that the tilt detector 1
Contact switch remains on and an input pulse is generated
No, but the contact ball 13 rolls up, down, left and right with landing.
Generates a plurality of short input pulses. MPU5 has
A plurality of input pulses generated at the time of landing are determined as one step and the
Count numberYouTo(Step counting circuit). Referring to the flowchart of FIG.
(Step counting circuit)Will be described. Processing
First, the input pulse switches from off to on
It is determined whether the user has touched (step 101)
When the switch is on, a control signal is output to the
After resetting the counter (step 102),
The number of resources is counted (step 103). Then enter
Whether a predetermined time has elapsed since the start of pulse counting
Is determined (step 104), and a predetermined time has elapsed.
Next, when the count value of the counting circuit 3 exceeds the predetermined value,
It is determined whether it is larger (step 105). Soshi
If the count value is larger than the predetermined value,
Increment the number of steps by adding 1 to the
106). [0018] As described above, according to the present invention,Pedometer
IsA sphere is rollably housed in a container, and
A contact switch that activates the switch by touching the body,Thisof
By touch switch on / offGenerated input pulse
Counting circuit that counts the number of
Count of the counting circuit until the specified time elapses after
If the value is greater than a predetermined value, add 1 to the step count
A step counting circuit.Therefore, Occurs at landing
Judging multiple input pulses as one step and counting the number of steps
it can. ContentSimple enough to accommodate contact electrodes and contact balls in the vessel
As it is simple and compact and lightweight, it can be assembledIs easy andStep
Lightweight and compactInWear.Also, count the number of steps
Depending on the road, the number of steps can be measured using a commercially available inclinometer.
Can count.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a pedometer embodying the present invention. FIG. 2 is a plan view of an inclination detector embodying the present invention. FIG. 3 is a side view of FIG. 2; FIG. 4 is a timing chart of a vertical acceleration change and an input pulse. FIG. 5 is a flowchart of a pedometer embodying the present invention. FIG. 6 is a block diagram of a walking signal generator of a conventional pedometer. [Description of Signs] 1 Tilt detector 11 Case 12 Contact electrode 13 Contact ball 14 Top cover 15 Bottom cover 16 Depression 2 Input circuit 3 Counting circuit 4 Input / output port 5 MPU a Weight b Spring c Contact electrode d Counter circuit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-187621 (JP, A) JP-A-8-221542 (JP, A) JP-A-10-260204 (JP, A) 70106 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06M 7/00 G01C 22/00 A61B 5/22

Claims (1)

(57) accommodates the Patent Claims 1. A container in the rollably sphere, a contact touch switch you activate the switch in contact with the sphere, on the contact switch of this・Input signal generated by turning off
A counting circuit that counts the number of pulses and a predetermined time after the first input pulse turns on
When the count value of the counting circuit is larger than a predetermined value, the number of steps
Pedometer, characterized in that it comprises a step count circuit adding 1 to the count, the.