When I was young, my father measured my height and always asked me to stand in the corner in front of the kitchen door. My father took out a tape measure and a ballpoint pen and asked me to stand straight. After careful comparison with the tape measure, he drew a horizontal line on the wall with a ballpoint pen and wrote the measured data and measurement date beside it. With the pace of time, I gradually grew taller, There are more and more horizontal lines on the wall, but because of the wind, the sun and the rain, the horizontal lines drawn earlier have gradually blurred into a warm memory in my heart.

Now I am also a new father. Every time I measure my child's height, I will think of the scene when my father measured my height. I won't draw lines on the wall anymore, but every time I record the measured child's height data in my notebook, and will search the height data of children of the same age on the Internet, carefully compare them, for fear that the child's development will lag behind. But sometimes the book recording the height data of the child cannot be found, and the precious data is also difficult to find, which is very annoying.

Now, these frustrations have become a thing of the past, because I have a magic tool for measuring children's height - the smart ultrasonic height meter for home guests. Its function is very powerful. It can not only easily measure the accurate height data of children, but also synchronously save these data to the supporting APP through Bluetooth, even to the cloud, APP will generate a growth curve with the collected data as a unit of day and month, so that children can fully grasp the growth. Now, let me introduce this height measurement artifact to you.

The outer packing box of the smart height measuring instrument is made of hard cardboard with enough hardness. On the front is the product's propaganda picture and functional feature illustration. On the back, in addition to the brand logo, the manufacturer's website, contact number and other information, I was surprised by the small line "Protect the environment, please reuse the packaging as much as possible" in the lower right corner of the back of the packing box, It seems that the manufacturer has a strong awareness of environmental protection.

Open the box and you can see the products placed in it, including measuring instruments, bases, batteries, instructions, certificates, etc. What I got is a emerald green measuring instrument, and there are pink, light black and other different colors for consumers to choose from.

First of all, let's take a look at the appearance of the measuring instrument. It looks like a wired phone on the table. The emerald green backplane is equipped with a battery slot at the bottom. On the other hand, the front is made of white plastic. Two bright "big eyes" (ultrasonic transmitter) and a smiling "mouth" (speaker) look very happy, dull Cute.

There is a round button on the top of the meter, which is the function button for height measurement.

Now let's talk about the base matched with the measuring instrument, which is also emerald green. The front is a groove, in which the measuring instrument can be stably placed; A level gauge is located in the middle below the card slot to ensure the levelness of the base when it is installed on the wall; The back of the base is made of strong adhesive to ensure that the base can be firmly adhered to the wall.

When using the measuring instrument to measure height, we first need to install the base on a suitable wall. The installation is very simple. Tear off the back glue of the base and paste the base horizontally on the wall. One thing to note is the installation height of the base. Follow the instructions and the author's repeated tests, The measured data is most accurate when the base is installed at a height of 1.8-2 meters.

After installing the base, insert the height meter with battery installed into the groove of the base to complete the preparation for height measurement. Of course, when not in use, we'd better take the measuring instrument out of the base and save it separately.

It is very simple and convenient to measure the height with the smart ultrasonic height meter. First, press the button on the top of the measuring instrument. After hearing the prompt tone of "Di", let the measuring object go to the bottom of the measuring instrument, look at the front with both eyes squarely, stand up, and wait for about ten seconds. The measuring instrument will automatically voice the measured height data. What about? Isn't it amazing?

In fact, the principle of the smart ultrasonic height measuring instrument for house guests is very simple. It uses acoustic technology to measure height wirelessly. The measuring instrument is equipped with an ultrasonic transmitting device. The emitted ultrasonic waves are reflected back by the measured object, and the built-in chip will calculate the height of the measured object. This principle is the same as the ranging principle of bats in nature. It is also a bionic design.

The smart ultrasonic height measuring instrument for homestead has a built-in Bluetooth module, so after each height measurement, the measured data can be saved in the supporting APP - "homestead growth" installed on the mobile phone via Bluetooth transmission.

The above figure is a screenshot of the Zaiker Growth APP, which is divided into four modules: home page, briefing, growth circle and more. The home page will display the baby's height, weight (you need to fill in), health index, height prediction, growth suggestions, etc. in the form of pictures and texts; The briefing module will display the data measured each time in the form of daily report and monthly report, so as to track the growth of children and timely understand whether the growth and nutrition of children meet the normal indicators.

The growth circle section is a place for users to communicate with each other, and there is also the staff's careful guidance.

The health description section in the APP can not only display the height, weight, BMI index and other indicators of children directly, but also introduce these three indicators in detail, so that parents can better understand the meaning of these indicators.

In addition, there are some fun and useful small functions in the APP, such as growth suggestions, children's long and high exercises, height prediction and other functions. It is very useful for children to do gymnastics according to the graphic prompts; Height prediction is to predict the future height level of children according to their parents' height.

Through the relevant introduction of the author, I believe that all parents have a deeper understanding of this product, the smart ultrasonic height measuring instrument for homesteaders. The author summarizes the advantages and disadvantages of this product based on personal experience.

advantage:

1. The modelling is dull and cute, easy to win children's favor, and the workmanship is also quite exquisite.

2. The installation and measurement are very convenient, and the voice prompt is very considerate.

3. The APP has powerful functions. Data can be saved in the cloud and never lost.

Insufficient:

1. The height measurement is inaccurate. The author has tested for many times, and sometimes the measured data has a large gap with the actual height.

2. Once the base is installed, it is difficult to move again, and you cannot measure your height anywhere at any time.

   Of course, the flaws do not cover the flaws. This product is very practical in general, and the price of 99 yuan is not expensive. In terms of functions, it comprehensively surpasses the traditional way of measuring the height of children, and brings many convenient and practical functions for parents. If we can continue to optimize and improve the shortcomings, the market prospect will be very broad.