JP2003144418A - Digital height meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital height meter compact, lightweight, low in cost and used also at ordinary homes. SOLUTION: This digital height meter is provided with a level sensor 3 for detecting the levelness of an installed state, a distance measuring sensor 4 for measuring a space to a floor face 13, and a display 5 for displaying the space to the floor face 13 measured by the distance measuring sensor 4. The digital height meter is placed on the head of a subject 60 to detect the levelness by the level sensor 3. In this state, the space to the floor face 13 is measured by the distance measuring sensor 4, and the measured value of the height of the subject 60 is displayed on the display 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable and compact digital height meter.

[0002]

2. Description of the Related Art Height measurement is not only performed by using a height meter as an inspection item for physical examination, but is often performed as a growth record of children in general households. The conventional height meter 50, as shown in FIG.
1, and a column 52 that is vertically set on this step 51,
A scale bar 53, a display 54, and the like are slidably combined with the support column 52.

The height meter 50 has an adjuster (not shown) attached to the bottom of the step 51, and can be adjusted so as to be placed horizontally with respect to the floor. Height total 5
0 indicates that the scale bar 53 is manually slid by the inspector 61 while the subject 60 is on the platform 51, or the scale bar 53 is automatically slid and the subject 60 is
There is provided a device that comes into contact with the above with a predetermined pressure contact force. In the height meter 50, a scale provided on the support column 52 along the slide area of the scale bar 53 is used by the inspector 61 to read the position of the scale bar 53 for measurement, and the amount of sliding movement of the scale bar 53. Is also displayed on the display 54 after being converted into an electric signal.
Further, there is also provided one in which an electric signal is automatically transmitted to a measuring instrument or the like.

The height bar 50 has a scale bar 53.
Instead, an ultrasonic sensor is provided on the upper part of the support column 52, and ultrasonic waves are emitted to the top of the subject 60 for measurement. Furthermore, by incorporating a weight scale in the step 51 into the height gauge 50, the subject 60
There is also provided that the body weight and the body height are simultaneously measured.

In the height meter 50, the adjuster is adjusted so that the step 51 becomes horizontal with respect to the floor surface, and the scale bar 53 is moved above the support column 52 to be set in the standby state. In the height meter 50, the scale bar 53 is supported by the scale bar 53 in a state in which the subject 60 rides on the platform 51 and attaches his back and occiput to the support column 52 to extend his back muscles firmly.
It is lowered along with and is applied to the top of the subject 60. The height meter 50 measures the height of the subject 60 by displaying the height position of the scale bar 53 from the surface of the step 51 on the display 54.

[0006]

By the way, in the above-described conventional height meter 50, the step 51 is accurately manufactured while the step 51 is kept horizontal by itself, and the subject 6
It has a sufficient mechanical strength so that it will not be bent or damaged even when 0 is placed, and it is formed with a certain size. Further, in the conventional height meter 50, the support column 52 is always provided, and the support column 52 also serves as a scale member, so that it is manufactured with high precision and does not tilt or bend even if the subject 60 leans. Must have sufficient mechanical strength, and the subject 6
Must have a length greater than zero height.

The height meter is in great demand in general households because the height measurement is valuable data for knowing the growth record of a child as described above. However, since the conventional height meter 50 is heavy, large, and expensive, it is only provided for business purposes, and is not used at all in ordinary households. Further, the height meter is preferably provided with a data storage function because it is compared with past measurement data every time measurement is performed, but a height measurement device is not provided.

[0008] Therefore, the present invention provides a digital height meter which is small in size and light in weight and inexpensive, and which can be purchased even in a general household to accurately measure the height of children.

[0009]

A digital height meter according to the present invention, which achieves the above-mentioned object, comprises a horizontal sensor for detecting the levelness of an installed state, a distance measuring sensor for measuring the distance between the floor surface, and a distance measuring sensor. And a display unit that measures a distance value to the floor surface measured by the measurement sensor and displays a height value of the subject calculated based on the measured value.

According to the digital height meter according to the present invention having the above-described structure, the horizontal sensor detects the level of the horizontal level while it is placed on the head of the subject standing upright with the wall surface or the like as the back. After confirming such a state, the distance measuring sensor is operated to measure the distance from the floor surface. According to the digital height meter, the height of the subject is measured by processing the measured value of the distance measuring sensor and displaying it on the display. The digital height meter is relatively expensive, large and heavy, and does not require a step and a pillar, so it is significantly smaller and lighter and can be easily carried without taking up space for installation or storage. Since it is available and inexpensive, it can be used in general households.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A digital height meter 1 shown in the drawings as an embodiment of the present invention will be described in detail below. Although not described in detail, the digital height meter 1 is provided with a thin box-shaped hermetically-sealed case 2 configured by combining an upper half and a lower half formed of, for example, synthetic resin or the like. As shown in FIG. 1, the digital height meter 1 includes a horizontal sensor 3, a distance measuring sensor 4, and a liquid crystal display 5 in a case 2.

The digital height meter 1 is provided with a changeover switch 6 for turning the power on and off and for switching functions, and also has a control CPU 7 in the case 2, a memory 8 for recording measurement data, and a time for the CPU 7. And a clock 9 for supplying data. In the digital height meter 1, a case 2 is partially openable and provided with a battery storage portion, and the battery 10 that supplies power to each portion via a power supply circuit portion (not shown) is replaced in the battery storage portion. Can be stored freely. The digital height meter 1 is provided with a data input unit 11 including, for example, 10 keys.

As shown in FIG. 2, in the digital height meter 1, one main surface of the case 2 is constructed as an operation surface 2a. On the operation surface 2a, the display surface of the liquid crystal display 5, the operation portion of the switch 6 or data. The input unit 11 is arranged. Although not shown in detail on the operation surface 2a of the digital height meter 1, a display unit 12 for displaying a horizontal state detected by the horizontal sensor 3 is provided.
Are arranged. The digital height meter 1 is configured as a mounting surface 2b when a bottom surface orthogonal to the operation surface 2a is mounted on the head of the subject 60 as described later.
The sensor portion of the distance measuring sensor 4 is arranged at one end side of.

The horizontal sensor 3 is a sensor for detecting whether or not the digital height meter 1 is installed in a horizontal state or a vertical state, and is constituted by, for example, a gyro type, a pendulum type, or air bubbles enclosed in a liquid. . Horizontal sensor 3
Detects the digital height meter 1 when the digital height meter 1 is installed in a horizontal state and outputs an output signal, or outputs an output signal indicating the degree of inclination with respect to a reference position.

In the digital height meter 1, the inclining level is displayed on the display section 12 provided on the operation surface 2a based on the output signal of the horizontal sensor 3, so that the examiner 61 can adjust the mounting state. To be done. Note that the digital height meter 1 may output the OFF information to the CPU 7 to disable the measurement operation, for example, when the horizontal sensor 3 detects a tilt amount of a certain amount or more. The digital height meter 1 may detect the amount of tilt by, for example, the horizontal sensor 3 and output the detection information to the CPU 7 so that the CPU 7 corrects the measurement data from the distance measurement sensor 4 described later.

The distance measuring sensor 4 measures the distance to the object by a wireless method such as a reflection type triangular measurement method using infrared rays, a reflection type measurement method using ultrasonic waves, or a measurement method using laser light. It is a sensor to measure. The distance measuring sensor 4 has one end of the mounting surface 2b as described above in order to prevent the sensor unit from being covered by the head when the digital height meter 1 is mounted on the head of the subject 60. It is located on the side. The distance measuring sensor 4 is, for example, arranged at the tip of an arm portion provided in the case 2 so as to be foldable or extendable, and the sensor portion is not covered by the head by extending the arm portion from the case 2 during use. It may be configured as follows.

The distance measuring sensor 4 emits, for example, infrared rays from the sensor section to the floor surface and receives infrared rays reflected by the floor surface in the sensor section. The distance measurement sensor 4 outputs the infrared emission information and the light reception information to the CPU 7.

The liquid crystal display 5 has a subject 6 as will be described later.
When the height of 0 is measured, the measured value is digitally displayed as shown in FIG. 2 based on the measured data signal sent from the CPU 7. The liquid crystal display 5 is held until the display of the measurement value is reset by the changeover switch 6. The liquid crystal display 5 is operated by the changeover switch 6 to change the CPU.
The predetermined information transmitted from 7 is displayed. Liquid crystal display 5
Displays the date and the current time output from the clock 9 via the CPU 7 when no measurement operation is performed, for example.

The change-over switch 6 is operated in a standby state together with the power-on / off operation so that the distance measuring sensor 4 performs the measuring operation. The changeover switch 6 is, for example, in a power-on state,
The CPU 7 is instructed to switch the display of the liquid crystal display 5, determines the input information set by the data input unit 11, and performs an input operation. Note that, for the changeover switch 6, for example, a power switch and a display changeover switch or a reset switch may be provided separately for easier operation.

The CPU 7 is in charge of overall control of the digital height meter 1, and is supplied with the detection signal in the horizontal state from the horizontal sensor 3 as described above and outputs the control signal to the horizontal sensor 3. The CPU 7 is the distance measuring sensor 4
The measurement information is supplied from the device and the control signal is output to the distance measuring sensor 4. The CPU 7 supplies a drive output to the liquid crystal display 5 so that the liquid crystal display 5 displays a predetermined display. When the power switch on / off operation or a predetermined switching operation is performed by the changeover switch 6, the CPU 7 outputs a control signal so that each unit performs a predetermined operation. The CPU 7 instructs the memory 8 to store the measurement information and read the stored information.

The memory 8 is, for example, a flash memory or an EEPROM (Electrically E
rasable and Programmable Read Only Memory). When the measurement operation is performed, the memory 8 stores the measurement information of the subject 60 based on an instruction from the CPU 7 based on the registration operation by the changeover switch 6, for example. Further, the memory 8 is stored in the memory 60 based on an instruction from the CPU 7 based on a calling operation by the changeover switch 6, for example.
The past measurement information of (3) is called and displayed on the liquid crystal display 5 via the CPU 7. In the memory 8, for example, the past measurement information displayed on the liquid crystal display 5 is erased based on an instruction from the CPU 7 based on an erase operation by the changeover switch 6.

In the digital height meter 1, the memory 8 is built in the case 2. However, for example, the case 2 is provided with a detachable portion for the external memory module, and the external memory module loaded in the detachable portion is described above. The measurement information of the subject 60 may be sequentially stored. In this case, the operation of storing, reading or erasing the measurement information is performed by operating the changeover switch 6 in the digital height meter 1. The digital height meter 1 stores, for example, average height data for ages and sexes in the whole country in the memory 8, the CPU 7 compares the measured height data with the subject 60, and the comparison result is displayed on the liquid crystal display 5. You may do it.

In the digital height meter 1, the date information output from the clock 9 in the CPU 7 and various input information set by the data input unit 11 are combined with the measurement information of the subject 60 and accumulated. It is recorded in the memory 8 as information. Although the details of the digital height meter 1 are omitted, the character conversion data is stored in the memory 8, and by operating the 10 key of the data input unit 11, appropriate character conversion is performed together with the numerical information. From the data input unit 11, for example, the name, age, code number, etc. of the subject 60 are input.

Digital height meter 1 constructed as described above
Operates the changeover switch 6 to turn on the power from the battery 10 to each unit. Digital height meter 1 is the subject 6
After standing 0 with columns and walls attached to the back and occiput with the back muscles firmly extended, the examiner 61 places the placing surface 2b on the top of the subject 60 as shown in FIG. Placed. According to the installation state displayed on the display unit 12, the digital height meter 1 is adjusted by the inspector 61 so that the mounting posture is horizontal. When the horizontal state of the digital height meter 1 is confirmed, the changeover switch 6 is operated to measure the height of the subject 60.

In the digital height meter 1, the distance measuring sensor 4 from the CPU 7 is operated by the measurement operation of the changeover switch 6.
In response to the operation instruction, infrared rays are emitted from the sensor portion of the distance measuring sensor 4 toward the floor surface 13 and the emission information is transmitted to the CPU 7, as shown in FIG. In the digital height meter 1, when the infrared light reflected on the floor surface 13 is incident on the sensor unit, the distance measuring sensor 4 sends the infrared light reception information to the CPU 7. In the digital height meter 1, the CPU 7 determines the distance measurement sensor 4 and the floor surface 13 from the infrared emission information and the infrared reception information.
Is calculated, that is, the height of the subject 60 is calculated and displayed on the liquid crystal display 5. The liquid crystal display 5 has, for example, FIG.
As shown in, the display of "175.5 cm" is performed.

The digital height meter 1 is lowered from the head of the subject 60 with the measured value displayed on the liquid crystal display 5 after the measurement operation of the changeover switch 6. In the digital height meter 1, when it is necessary to store the measurement value, the changeover switch 6 is registered to record the value in the memory 8. In the digital height meter 1, when the changeover switch 6 is reset, the display of the liquid crystal display 5 is reset.

In the digital height meter 1 described above, the data input unit 11 having 10 keys is provided on the operation surface 2a of the case 2, but the data input unit 11 is not essential. When the digital height meter 1 is used exclusively for personal use and does not require a large amount of information to be stored in the memory 8, the digital height meter 1 has a code number of, for example, about 2 digits in order to be simpler, more compact, and less expensive. The data input unit 11 capable of inputting may be provided.

The digital height meter 1 has a small digital camera such as a solid-state image pickup device camera (CCD camera) in which an image pickup portion is arranged in the operation portion 2a of the case 2, for example. The captured image of the person 60 may be stored in the memory 8 together with the measurement information. The digital height meter 1 can create a more complete growth record, for example, by storing a record of the growth of children with images and numerical values. In addition, the digital height meter 1 is provided with an external connection terminal,
The measurement information of the subject 60 may be supplied to a personal computer or the like connected via the external connection terminal.

[0029]

As described in detail above, according to the digital height meter according to the present invention, the height is measured by placing it on the head of the subject, so that it is relatively expensive, large and heavy. It does not require a large step and a pillar, and can be manufactured at a low price while achieving a large reduction in size and weight. Therefore, since the digital height meter can be easily carried without taking up a place for installation and storage, it can be used in general households, etc., and the growth record of children can be enhanced. In addition, it is highly used as a household health appliance. Further, the digital height meter can perform highly accurate height measurement by detecting the levelness of the horizontal sensor and highly accurate measurement of the distance measuring sensor.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a digital height meter shown as an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation unit of the digital height meter.

FIG. 3 is an explanatory diagram of a usage state of the digital height meter.

FIG. 4 is an explanatory view of a usage state of a conventional height meter.

[Explanation of symbols]

1 Digital height meter 2 cases 3 Horizontal sensor 4 distance measuring sensor 5 Liquid crystal display 6 changeover switch 7 CPU 8 memory 9 clocks 10 batteries 11 Data input section 12 Display 13 floor

Claims (2)

[Claims] 1. A horizontal sensor for detecting the levelness of an installed state, a distance measuring sensor for measuring a distance from a floor surface, and a display for displaying a distance value to the floor surface measured by the distance measuring sensor. While mounted on the subject's head, the horizontal sensor detects the levelness, the distance measuring sensor measures the distance from the floor, and the height of the subject is calculated based on the measured value. The digital height meter is characterized by displaying on the display device. 2. The digital height meter according to claim 1, further comprising a memory function of accumulating and storing a measured value by the distance measuring sensor.