JP2001054512A - Height meter utilizing level and ranging device by infrared rays - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pleasantly, easily and precisely measure a body height whenever and wherever a person to be measured stands on a horizontal floor, without requiring a wall or a pole. SOLUTION: A height meter is in the state of a half-cylindrical bar having 3.5 cm width and 20 cm length to be contact enough to allow a child to hold. The meter has a part for confirming a horizontal state by an attached level 2, a measuring start switch 3, a distance measuring part (main body rear/lower part) 4 using infrared rays, a height display part 5 for displaying a measuring result, a buzzer part for giving information of the finish of measurement, a control part for controlling each part, a power source part for supplying a power source and a power source switch 1. A height can be measured by placing the front part of a main body on the top of the head of a person to be measured from the direction of the upper part of the head of the person in a standing position, confirming the horizontal state by the level and pressing the start switch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple structure which is widely used in a construction site, but which has a compact body on which a high-precision level is installed. Height by checking the level with a level and pressing the measurement start switch to emit infrared rays from the distance measuring window and measure the height by the time difference when the light receiving sensor detects the reflection from the horizontal floor. About the total.

[0002]

2. Description of the Related Art A conventional height meter uses a columnar ruler, or in a home, a paper ruler is attached to a column or wall, and the scale is read and measured.

[0003] There is also a device using infrared rays (for example, see Japanese Utility Model Laid-Open Publication No. 1-119615). However, a vertical wall is essential, and four points at the rear of an L-shaped height meter are in contact with the wall. Then, the switch 1 is turned on, and the back is slid on the head of the subject who is standing upright with the back on the wall,
The switch 2 is turned on when the horizontal part is brought into contact with the top of the head, and by turning on both switches, infrared rays are emitted from the distance measuring window of the horizontal part protruding forward of the head, and the reflection from the horizontal floor is reflected. The height was measured based on the time difference when the light was received.

[0004]

The conventional height meter using a columnar ruler is large and bulky, and is not suitable for home use alone. Was easy to occur.

At home, a paper ruler is attached to a wall. However, the paper is easily deformed, and a thick book or the like is placed on the top of the head to make contact with the wall ruler and read the scale. In addition, there is a problem that a horizontal error is large.

The above-mentioned conventional L-shaped height meter using infrared rays (see Japanese Utility Model Laid-Open Publication No. 1-119615) is also disclosed.
Due to the principle structure, it is essential that the subject stands up against the wall, and the horizontal part to be placed on the head protrudes forward and backward of the subject's head plus the tip of the nose, the toes, and the front. It is necessary to have a length corresponding to the length of the infrared light emitting and receiving part, which is obviously longer than the horizontal part of the conventional columnar height meter. It may also not be possible to measure in late pregnancy or in people with abdominal obesity.

An object of the present invention is to measure the height of a subject easily, easily and accurately anytime, anywhere, as long as the subject is standing on a horizontal floor without requiring walls or pillars. Practical for children with significant height growth.

[0008]

In order to achieve the above object, the height meter of the present invention has a width of 3.5 c so that a child can hold it.
m, 20 cm long, semi-cylindrical rod-shaped compact body (Fig. 1), a part for easily and accurately checking the level with the attached level 2, a measurement start switch 3, and a distance measuring unit using infrared rays 4, a height display section 5 for displaying a measurement result, a buzzer section 9 for notifying the end of measurement, a control section 7 for controlling each section, a power supply section 6 for supplying power, and a power switch 1.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view of the present invention,
2 is a top view, FIG. 3 is a bottom view, and FIG. 4 is a front view. 1, 2 and 3, the left side is the front part and the right side is the rear part.

The present invention is a half-cylinder-like compact height meter having a width of about 3.5 cm and a length of about 20 cm (FIG. 1). If the length is divided into four equal parts and counted from the front, each is considered as the first, second, third, and fourth section, a 3 cm level 2 is installed at the top of the second section, and a height display of 5 cm is displayed on the side. A unit 5 and a power switch 1 are provided (FIG. 1) (FIG. 2). A measurement start switch 3 is provided above the third section (FIG. 1) (FIG. 2), and a distance measuring window (distance measuring unit) 4 is provided below the fourth section (FIG. 3). In consideration of a sense of stability, a battery filling section (power supply section) 6 is provided at the center of the lower surface (FIG. 3). It is preferable to make a recess like a groove on both sides to make it easier to hold the main body (FIG. 1) (FIG. 4).

Now, in the actual measurement procedure, the measurer stands facing the left side of the three-dimensional subject, turns on the power switch 1, and holds the fourth section from above with the right hand (right Place the thumb on the near side, the right middle, the medicine and the little finger on the opposite side, and hold it in between), and place the first and second sections on the top of the subject's head from the upper part of the occiput. Put on (only the lower part of the first section is actually in contact with the crown). Next, level 2
By pressing the measurement start switch 3 with the right forefinger (actually, it is better to be able to start with just a light touch), the infrared ray is emitted from the distance measuring window 4 and the reflection from the horizontal floor is received. The height is measured by the time difference when the sensor sensed. The measurement result is displayed on the height display unit 5 and the end of the measurement is notified by the buzzer unit 9.

FIG. 5 is a block diagram showing the configuration of the present invention. The power supply section 6 supplies operation power to each section of the present invention, and uses a dry battery or the like. When the power switch 1 is turned on, 0 cm is displayed on the height display section 5 through the control section. Then, when the level is checked with the level 2 outside the electric circuit and the measurement start switch 3 is pressed, the distance measuring unit 4 measures the distance (height) a plurality of times, and all the measurement results are stored in the storage unit 8. The average value is displayed on the height display unit 5 and the end of the measurement is notified by the buzzer unit 9.

[0013]

The present invention has the following effects.

Since the level is checked using a level, a high level of accuracy can be easily and easily secured.
Since the distance is ± 2.5 mm per m, the horizontal accuracy of a 20 cm long height meter is within ± 0.5 mm.)

As long as the subject stands on a horizontal floor without the need for walls or columns, the height can be measured anytime, anywhere, happily, easily and accurately.

In particular, it is highly practical for children whose height is remarkably increased (for example, it is useful when purchasing clothes).

Since the height can be easily measured not only at the pediatric outpatient and child medical examination sites but also at home, it is useful for early detection of congenital dwarfism and the like.

Since the main body is compact, 3.5 cm wide and 20 cm long, children can measure their height happily and have a lot of topicality.

By touching the height meter, the principle phenomena of the level and the infrared distance measuring device can be taught to the child, and the learning effect can be expected for the child.

[Brief description of the drawings]

FIG. 1 is a perspective view of a body height meter.

FIG. 2 is a top view of the body height meter.

FIG. 3 is a bottom view of the body height meter.

FIG. 4 is a front view of the body height meter.

FIG. 5 is a block diagram showing a configuration of a body height meter.

[Explanation of symbols]

 Reference Signs List 1 power switch 2 level 3 measurement start switch 4 distance measuring window (distance measuring section) 5 height display section 6 battery filling section (power supply section) 7 control section 8 storage section 9 buzzer section

Claims (1)

[Claims] 1. A part for checking the level with an attached level,
A distance measuring unit for measuring height using infrared light, a measurement start switch, and a height display unit for displaying a measurement result;
A height meter having a buzzer unit for notifying the end of measurement, a control unit for controlling each unit, and a power supply unit for supplying power.