CN100417364C - Portable ultrasonic height measuring device - Google Patents

Abstract

The invention relates to a portable ultrasonic height measuring device, which consists of a display unit and a measuring unit, wherein the display unit is provided with a liquid crystal screen, a loudspeaker, a transparent panel and a non-slip pad; the measuring unit is provided with an ultrasonic transmitter, an ultrasonic receiver, an activation key and a setting keyboard, a microprocessor is arranged below the setting keyboard, the ultrasonic transmitter transmits signals and the ultrasonic receiver receives the signals to measure the height of a user, and the liquid crystal screen displays the measured value; the display unit and the measuring unit are pivoted with each other, so that the display unit can rotate and turn up or cover the measuring unit with a set opening range angle to the measuring unit.

Description

A portable ultrasonic height measuring device

technical field

The present invention relates to a portable ultrasonic height measurement device, in particular to a small portable ultrasonic device that uses an ultrasonic transmitter to emit ultrasonic waves, and then receives them by an ultrasonic receiver to calculate the height of a human body. Sonic height measuring device.

Background technique

There are not many types of commonly used height measurement devices, but there are several different measurement methods and styles; some use a tape measure to measure, some use a ruler paper attached to the indoor wall to measure, and some use a height that is integrated with a weighing scale Measuring device, there is a height measuring device using a unilateral device similar to a jumping frame, and the most invented is a coin-operated electronic digital display height measuring device placed in a public place.

Various commonly used height measuring devices have their shortcomings, which are analyzed and explained as follows:

1. Use a measuring tape to measure: This measurement method is the most commonly used method for ordinary families to understand the growth status of their children; Press a ruler or a hard plate lightly on the subject's head so that the ruler or plate is perpendicular to the wall, then use a pen to mark the height position of the subject on the wall, when the subject After leaving the wall, the measurer uses a tape measure to measure the height from the floor to the marked position. The disadvantage of this method is that the ruler or the plate is often unable to form a 90-degree vertical state with the wall, resulting in inaccurate markings, and the tape measure is often unable to be parallel to the body of the person being measured during measurement, and the angle of the tape measure Offset will lead to errors in measurement values, and with the increase in measurement frequency, the scratches on the wall will also increase, which will destroy the cleanliness and beauty of the wall.

2. Use a paper ruler attached to the wall to measure: this measurement method is mostly used in the classrooms of kindergartens and elementary schools, and it is also commonly used in the bedroom walls of ordinary family children; the measurement steps are closely related to the measured person. After standing against the wall where the paper ruler is pasted, the measurer still needs to use a ruler or a hard plate to lightly press on the head of the person being measured so that the ruler or plate is perpendicular to the wall, and then let the measurer The measured person leaves the wall, and the measurer can read the measured person's height from the scale where the lower edge of the ruler or the plate touches the paper ruler. The disadvantage of this method is the same as that of measuring with a tape measure, that is, the ruler or plate often cannot be in a vertical state of 90 degrees to the wall, resulting in deviations in the read values.

3. A height measuring device integrated with a weighing scale: this device is widely used in large and small hospitals or school health centers at all levels; its main disadvantages are that it is bulky and heavy, difficult to move, and quite expensive, which is not an ordinary activity Families with limited space and economic well-off can buy and use.

4. A height measuring device similar to the unilateral device of a high jump stand: this device is also widely used in large and small hospitals or school health rooms at all levels; its main disadvantages are that it is large and thin, and the cost of packaging and transportation is high. If it is placed in the family It also hinders the viewing of family layout, so few families buy and use it.

5. Height measuring device with coin-operated electronic digital display: This device is mainly placed in public places, such as: stations, department stores, supermarkets...etc. The general family has been excluded from the market segment, and it is bulky and expensive, and it cannot be purchased and used by ordinary families.

As far as the height measuring device is concerned, the height measuring device similar to the unilateral device of the jumping frame is the most common, and the problem of high packaging and transportation costs has been improved. The main structural features are: the upper and lower aluminum extrusions, the base, the sliding rectangular groove and the pressure plate are packaged separately to reduce the cost of packaging and transportation; when they are assembled, the folding components between the upper and lower aluminum extrusion grooves It is pivoted so that the step drill piece locked at the end of the upper aluminum extrusion just hits the concave notch at the top of the lower aluminum extrusion, and the step locking piece just hits the concave notch at the top of the lower aluminum extrusion, and The drilling holes set on the end face of the lock piece of this class correspond to the lock hole of the flat lock piece locked by the top of the lower aluminum extrusion. If it is locked with screws, the assembled lower aluminum extrusion end sleeve is placed in the longitudinal direction. The locking block, at the same time, the vertical plate of the base plate corresponds to the lock hole of the aluminum extruded type, and is locked on the end face of the longitudinal locking block with screws, and then the sliding rectangular groove is inserted on the upper and lower aluminum sections. In the extruded mold, a height measuring device is formed. Viewing the improvement of the citation case, after the establishment, it still cannot get rid of the shortcomings of being large and slender.

In today's developed economy and social progress, parents pay special attention to the growth status and process of their children. The growth status of children is mainly based on regular measurement of their height. The above-mentioned five commonly used height measurement devices all have the same or different shortcomings, but their common shortcoming is that after the height measurement, the measurement date and the measurement value must be recorded in a notebook, otherwise it will affect the child's growth process. It is difficult to accurately grasp whether it is normal or abnormally slow.

Therefore, in view of the shortcomings derived from the above-mentioned conventional height measuring device, the inventor of this case wanted to innovate. After years of painstaking research, he finally developed a completely new ultra-small, precise measurement, and multi-function device that broke the tradition. A portable ultrasonic height measuring device with person and multi-stroke memory functions. We hope that this invention will allow every family to easily, quickly and accurately grasp the growth status of their children, and contribute to the health promotion of the future masters; we also hope that every family can easily enjoy the benefits brought by innovative technology. Come for convenience.

Contents of the invention

The purpose of the present invention is to provide a portable ultrasonic height measuring device, which adopts an ultrasonic transmitter to emit a fixed wavelength, and then receives the reflected ultrasonic wave by the ultrasonic receiver, and then precisely Calculate the user's height.

The second purpose of a portable ultrasonic height measuring device of the present invention is to provide an extremely small portable height measuring device whose volume is equivalent to that of a general mobile phone, so as to completely subvert the conventional height measuring device. The traditional image of being large and slender.

Another purpose of the portable ultrasonic height measurement device of the present invention is to provide a height measurement that can memorize the measurement date, memorize the value of the measured height, and can accommodate multiple data for multiple people to use. device to save the trouble of recording the measurement date and measurement value with a notebook.

A portable ultrasonic height measuring device that can achieve the above-mentioned purpose of the invention includes:

A display unit, the display unit has a first upper cover and a first bottom cover that are corresponding and can be covered, and the first upper cover has an accommodating groove relative to the first bottom cover, The accommodating groove is provided with an accommodating hole for accommodating a liquid crystal screen, and a loudspeaker fixing groove that can make the present invention sound, and a transparent panel that can protect the liquid crystal screen is provided at a position opposite to the accommodating hole, and A non-slip pad is embedded on the surface away from the first bottom cover and away from the first upper cover;

A measurement unit, the measurement unit has a second upper cover and a second bottom cover that are corresponding and can be covered, and a groove is provided at the place where the second upper cover faces the second bottom cover, In the groove, an ultrasonic transmitter, an ultrasonic receiver, a setting keyboard, a microprocessor, and an activation key are accommodated, and the second bottom cover corresponds to the transmitting sensor and the receiving sensor. The positions are respectively provided with an accommodating part for the ultrasonic transmitter to transmit signals and then receive the signals by the ultrasonic receiver, and a power supply device box, and the corresponding place of the power supply device box is provided with a matching second upper cover. The keyway is activated, and the second upper cover is provided with more than one keyboard hole corresponding to a setting keyboard for accommodating the setting keyboard, and a microprocessor is placed under the setting keyboard;

The display unit and the measurement unit are pivotally connected to each other, so that the display unit can rotate and turn up the measurement unit at a set opening angle, or cover the measurement unit.

Description of drawings

Please refer to the following detailed description of a preferred embodiment of the present invention and the accompanying drawings, will further understand the technical content of the present invention and its purpose effect; the accompanying drawings of the relevant embodiment are:

Fig. 1 is a three-dimensional exploded view of a display unit of a portable ultrasonic height measuring device of the present invention;

Fig. 2 is a three-dimensional exploded view of a measuring unit of a portable ultrasonic height measuring device of the present invention;

Fig. 3 is a combination diagram of a portable ultrasonic height measuring device of the present invention;

Fig. 4A, B, C, D are the use schematic diagrams of a kind of portable ultrasonic height measuring device of the present invention;

Fig. 5 is a circuit flow diagram of a portable ultrasonic height measuring device of the present invention; and

Fig. 6 is a program flow chart of a portable ultrasonic height measuring device of the present invention.

Detailed ways

Please refer to Fig. 1 to Fig. 3, which is a portable ultrasonic height measuring device provided by the present invention, which mainly includes:

A display unit 1, as shown in Figure 1, this display unit 1 has a first upper cover 11 and a first bottom cover 12 that are corresponding and can be covered. In this embodiment, the display unit 1 is a The shape of the rectangle is an illustrative example, but it can also be applied to a variety of regular or irregular designs, and the first upper cover 11 has an accommodating groove 121 relative to the first bottom cover 12, and The accommodating groove 121 is provided with an accommodating hole 123 for accommodating a liquid crystal screen 122, and a loudspeaker fixing groove 125 for fixing a loudspeaker 124, thereby making the ultrasonic height measuring device sound, and communicating with the accommodating A transparent panel 13 that can protect the liquid crystal screen 122 is provided at the opposite position of the hole 123; and the surface of the first bottom cover 12 away from the first upper cover 11 is embedded with a surface that can make the present invention have an anti-slip effect during operation. Anti-slip pad 14;

A measuring unit 2, as shown in Figure 2, the measuring unit 2 has a corresponding second upper cover 21 and a second bottom cover 22 that can be covered, and in this embodiment the measuring unit It is a rectangular shape as an illustrative example, but it is also applicable to various regular or irregular designs, and the position of the second upper cover 21 relative to the second bottom cover 22 has a groove 221, And in this groove 221, accommodate an ultrasonic transmitter 223, an ultrasonic receiver 224, a setting keyboard 226, a microprocessor 227, and an activation key 228, the second bottom cover 22 corresponds to the ultra-sonic The positions of the sonic transmitter 223 and the supersonic receiver 224 are respectively provided with an accommodating portion 225 for the supersonic transmitter 223 to transmit a signal and receive its signal by the supersonic receiver 224; There is a power supply device box 222 that can be closed or opened, and the power supply device box 222 in the present invention accommodates a battery pack (not shown) as an example, and the second bottom cover 22. The upper end far away from the second upper cover 21 is provided with more than one keyboard hole 211 corresponding to a setting keyboard 226 for accommodating the setting keyboard 226, and a microprocessor 227 is placed below the setting keyboard 226; Where the second bottom cover 22 and the second upper cover 21 cooperate with each other, a semicircular slot 229 is provided for an activation key 228 to be inserted.

And the display unit 1 and the measurement unit 2 are in a mutually pivoted form, as shown in FIG. 90 degrees or 270 degrees), or cover the measurement unit 2 . When the present invention is in operation, as shown in Figures 4A-B, the operator opens the display unit 1 and turns it over to form a 90-degree vertical position with the measuring unit 2; Stand its back against the wall, and make the back of its body parallel to the wall, then the operator 41 places a portable ultrasonic height measuring device of the present invention on the top of the subject 40 and The first bottom cover 11 of the display unit 1 is leaned against the wall, and the measurement unit 2 is held at a perpendicular angle to the wall. At this time, the portable ultrasonic height measuring device of the present invention is fixed, and then as shown in the figure After the operator 41 shown in 4D asks the subject 40 to leave, the operator 41 presses the on/off key of the activation key 228 with his index finger, and when he hears the sound of "beep" from the speaker 124, it means that the measurement is completed, and the operator can The measured height value can be seen from the LCD screen 122 .

The basic principle of the portable ultrasonic height measuring device of the present invention is to use the microprocessor 227 to output a digital signal, and then the digital signal is amplified by the transmitter to convert the numerical value into an analog voltage, and then output the digital signal corresponding to the measurement. The ultrasonic transmitter 223 of the unit 2, when the emitted ultrasonic signal uses the air as the medium, it is reflected back through the ground, and then received by the ultrasonic receiver 224 of the measurement unit 2, and the distance is calculated through the time difference The length of the signal is converted into a value that can be read directly through the calculation and processing of the microprocessor 227, and displayed on the LCD screen 122; and, when the measurement of the ultrasonic measuring device is completed, the loudspeaker 124 emits a "beep" sound to indicate that the measurement is completed, and the user 41 can see the correct value of the measured height from the liquid crystal screen 122 .

Furthermore, a portable ultrasonic height measuring device of the present invention can input the name of each representative by the microprocessor 227, and can memorize the height value and measurement date of this measurement, and the measuring device of the present invention can simultaneously Record more than one person's data, and check past height records anytime, anywhere.

As shown in Figure 5, it is the circuit flowchart of the portable ultrasonic height measuring device of the present invention, and the actuation of the whole circuit is controlled by activation key 228, and after pressing the action key of activation key 50, this The microprocessor receives the signal, that is, transmits the reference frequency 51 (40KHz square wave), amplifies the ultrasonic signal through the transmitter amplifying circuit 52 and then transmits the signal 53 through the ultrasonic transmitter, and when the ultrasonic signal encounters a reflector 54 (ground) obstruction, the ultrasonic signal will be reflected, and after receiving the signal 55 through the ultrasonic receiver, the measurement parameter is converted into a digital signal through the receiver amplification circuit 56, and after the digital signal is amplified, It is sent to the voltage boosting circuit 57, and then the signal is sent to the microprocessor processing 58 to calculate the time difference from the transmitted signal to the received signal, and then calculate the distance of the difference, and then the liquid crystal screen displays the distance measurement value 59 to judge the detected value. The height value measured by the measurer.

As shown in Figure 6, it is a program flow chart of a portable ultrasonic height measuring device of the present invention, which is to wait for the activation key signal 612 of the controller after the program starts to initialize the setting 611, but if the time exceeds Set the value, the microprocessor will automatically shut down 613, and when there is a control signal, it is judged whether it is the execution item 614 of the activation key input, and if the signal is correct, the action item 615 of the controller is executed, and the distance measurement signal 616 is generated at 40KHz. Wave 617, then judge whether it is a 40KHz square wave 618, judge whether a correct ultrasonic signal is received 619, start to execute 620, use the LCD screen to display the measurement result 621, and then end the program 622, and when the above-mentioned judgment result is incorrect, Use the LCD screen 122 to display an error message, and end the program 623 .

A portable ultrasonic height measuring device provided by the present invention has the following advantages when compared with the aforementioned cited case and other conventional technologies:

1. The present invention uses ultrasonic waves not emitted and received by reflection from the ground. It does not need to use the base of the height measuring device, the rectangular column and the sliding rectangular slot. It can be extremely miniaturized in volume and is convenient to carry and store.

2. The lower cover group of the measuring device of the present invention can be rotated and opened in a predetermined opening range, so that it is 90 degrees away from the display unit. By virtue of the display unit being close to the wall and the measuring unit lightly pressing on the top of the person being measured, it can avoid Measure the deviation of the position.

3. The present invention uses ultrasonic waves to transmit and receive, and utilizes digital display to obtain highly accurate height data.

4. This portable ultrasonic height measurement device can memorize the date and height data of many people, and provide parents with the ability to query the child's personal height record and understand the child's growth situation.

Claims (5)

1. A portable ultrasonic height measuring device, characterized in that: it comprises: A display unit, the display unit has a first upper cover and a first bottom cover that are corresponding and can be covered, and the first upper cover has an accommodating groove opposite to the first bottom cover, the The accommodating groove is provided with an accommodating hole for accommodating a liquid crystal screen, and a speaker fixing groove for fixing a loudspeaker that can emit sound, and a transparent panel that can protect the liquid crystal screen is provided at a position opposite to the accommodating hole. And the surface of the first upper cover which is far away from the first bottom cover is embedded with a non-slip pad; A measurement unit, the measurement unit has a second upper cover and a second bottom cover that are corresponding and can be covered, and on the second bottom cover, the second upper cover faces the second bottom cover A groove is provided, and an ultrasonic transmitter, an ultrasonic receiver, a setting keyboard, a microprocessor, and an activation key are accommodated in the groove, and the second bottom cover corresponds to the ultrasonic transmitter and the position of the ultrasonic receiver are respectively equipped with a housing part for the ultrasonic transmitter to transmit signals and then receive the signals by the ultrasonic receiver, and a power supply device box is also accommodated in the groove of the second bottom cover , and the corresponding position of the power supply device box is provided with an activation keyway that cooperates with the second upper cover, and the second upper cover is provided with more than one keyboard hole corresponding to the setting keyboard for the setting keyboard to accommodate, and the setting keyboard A microprocessor is placed under the fixed keyboard; Wherein, the display unit and the measurement unit are in a form of mutual pivot connection, so that the display unit can rotate and turn up the measurement unit at a set opening range angle, or cover the measurement unit; the display The opening angle of the unit to the measurement unit is 90 degrees or 270 degrees depending on the flip design. 2. A portable ultrasonic height measuring device as claimed in claim 1, characterized in that: the setting keyboard and the microprocessor corresponding to the bottom of the setting keyboard can be used for height measurement before setting Set the input code, number and year, month, day, and can set the measurement of metric or imperial, as well as operation clear, memory and data reading functions. 3. A portable ultrasonic height measuring device as claimed in claim 1, characterized in that: the anti-slip pad is formed of a soft plastic or rubber. 4. A portable ultrasonic height measuring device as claimed in claim 1, characterized in that: the display unit and the measuring unit can be accommodated in the same box with regular or irregular appearance design. 5. A portable ultrasonic height measuring device as claimed in claim 1, characterized in that: the power supply device box contains a manganese dry battery, a lithium battery, or various rechargeable and reusable power supply devices. Battery.

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