What technology is applied to smart bracelets

What technology does a smart bracelet rely on to count steps?

Smart bracelets rely on sensors to count steps, such as:

1. 3-D Rhythmic Motion Sensor (3-axis acceleration sensor)

This kind of sensor is able to sense different directions of acceleration or vibration through the capacitive accelerometer.

Three-dimensional rhythmic motion sensor is divided into three-axis and six-axis, three-axis will generally record our data when we swing our arms, while six-axis will be through walking, running, cycling, climbing stairs to enhance the movement of the best data recording and accuracy.

2, green light photoelectric measurement (photoelectric effect)

Green light photoelectric measurement is composed of two green wavelength light-emitting LEDs and a photosensitive sensor, located in the back of the heart rate table.

The principle is based on the fact that blood in the vessels of the arm undergoes a change in density when pulsating, causing a change in light transmission. The light emitting LED emits green wavelength light waves, and the photosensitive sensor receives the reflected light from the arm skin and senses the change in light field intensity and converts it to heart rate. It can continuously measure the heart rate, calculate the average heart rate, and record the maximum heart rate.

Huawei 50 waterproof smart bracelet core technology

May 26, Huawei smart wearable series ushered in another heavyweight product - Huawei sports bracelet was officially unveiled at the launch of HUAWEInova2, Huawei Consumer Business cell phone product line president He Gang on-site to explain the product. This sports bracelet adheres to the high quality of Huawei's manufacturing, with a stylish appearance and a rich color scheme, available in five colors: black, red, blue, orange and green. As Huawei's first sports bracelet, it features 50 meters waterproof, heart rate monitoring, sleep monitoring, etc. The GPS version is equipped with an independent GPS, which can record the movement track. The above functions are designed to fully meet the needs of young people running, swimming and other different scenarios. It is reported that Huawei sports bracelet will be officially listed on July 14, the standard version and GPS version priced at 298 yuan and 388 yuan respectively.

Huawei's first sports bracelet was officially unveiled

Fashionable appearance: handmade color and texture are from famous designers

With the rapid development of smart wearable devices, the application scenarios are also becoming more and more rich. Based on this, Huawei has spared no effort in the design of smart bracelets. On the exterior design, Huawei adopts the design concept of "nature and harmony", combining square parallel lines with standard arcs, and at the same time bringing in a strong sense of technology, adopting precision machining technology, and making full use of the internal space structure, Huawei Sports Bracelet is built to be exquisite and durable.

In terms of the body, each bracelet has been handcrafted by 9 craftsmen with 9 repeated grinding and polishing, and the surface of the bracelet shows a silky luster and suppleness. Huawei's designers from the FashionDesign family have also worked their magic, tailoring the texture as well as the color palette for this product according to the latest trends. The texture arrangement of the bracelet is inspired by Italian perforated leather, and the color is in French high-grade grey tones, which highlights the wearer's style and temperament. The distinctive design, fine workmanship and fashionable and colorful color scheme make Huawei Sports Bracelet both stylish and practical, which fits the needs of the current young crowd in pursuit of individuality.

Powerful waterproof function: 50 meters waterproof to go swimming

In order to create this wrist artwork, Huawei has adopted complex and precise processing methods. The bottom case, including the heart rate measurement device, is molded in one piece through two-color injection molding, ensuring a seamless wrist contact surface. The face shell is also welded with high-frequency ultrasonic welding methods, making the bracelet smooth and refined. High-end craftsmanship allows Huawei Sport Bracelet to achieve an industry-leading 50M waterproof reliability and waterproof rating. This means that Huawei Sports Bracelet can be worn in swimming and hand washing scenarios, and does not need to be taken off for all-day use under normal circumstances, even after swimming in seawater, it only needs to be cleaned with water and wiped clean. For young people who like water sports, this bracelet will be the finishing touch to a swimsuit look.

Huawei sports bracelet with 50M waterproof

Independent GPS + running data analysis with a key away from the people

In order to allow users to record the track of movement in the running at the same time can get rid of the cell phone's constraints, Huawei sports bracelet specially launched the GPS version. The built-in GPS allows Huawei Sports Bracelet to not only realize independent GPS positioning and record the movement track, but also view the data such as pace and distance in real time.

The heart rate monitoring function of the bracelet is another great assistant for running. The bracelet adopts the innovative PPG module, and the 24-hour heart rate tracking function is comparable to a heart rate belt. When exercising, the heart rate monitoring not only reminds the user of the exercise heart rate zone to understand the exercise status, but also receives a heart rate warning when the heart rate is too fast to ensure the safety of the exercise.

Huawei Sports has a built-in independent GPS version

Breathing, sleep full coverage of the screen, battery life double upgrade

Huawei Sports Bracelet also uses a number of industry-leading technologies in the health function. The bracelet can guide users to perform breathing exercises, relax tense muscles, release life stress, and make the mood comfortable and calm. At the same time, Huawei has been certified by the Harvard Medical School CDB Center for HUAWEITrusleep呒嗖饧际酰梢晕没_峁┚杆呓峁雇迹庖踩没硕只吩谥诙嗑哂兴呒嗖夤δ艿氖只分型延倍觥

Huawei Sports Bracelet is equipped with a large screen not only to make the bracelet more convenient to operate, but also allow the bracelet to display more information in the caller ID, message synchronization. Along with the large screen, the battery life of Huawei Sports Bracelet has also been improved, and it can be used normally for about 21 days on a single charge, which is an industry-leading level.

Huawei sports bracelet can be used normally for about 21 days on a single charge

Fashionable sports accessory: value burst powerful

Not long ago Huawei released the HUAWEIWATCH2 widely acclaimed, its cell phone information synchronization, speed monitoring, continuous heart rate monitoring and other features have been favored by consumers, the Huawei sports bracelet with the Huawei sports bracelet and HUAWEIWATCH2 are in the same family, with similar information synchronization and heart rate monitoring functions. For young people who chase the trend, like sports and pay attention to health, this kind of face value, powerful and cost-effective bracelet is undoubtedly the most worthwhile fashion sports accessories in this summer.

Huawei Sports Bracelet will be available on July 14th at Huawei Mall and other major e-commerce platforms, Huawei Authorized Experience Stores and other authorized retailers.

Smart bracelet application of the Internet of Things technology are: sensing technology, cloud management technology, big data analysis technology, Internet of Things technology can be referred to the Internet of Things platform - electronic people networking.

What is the working principle of the smart bracelet

With a whirlwind of smart wearable devices blowing through the IT industry, Google Glass and smart watches have sustained exposure and high attention, the smart bracelet seems to be on fire. Many people must have questions, see these smart watches and smart bracelets sold on the market, saying that they can detect the state of movement and detect sleep through Bluetooth, what is its working principle? How is the function realized? I will introduce you in detail below.

What is the working principle of the smart bracelet1

One, the principle of the smart bracelet

Smart bracelet motion monitoring function through the gravity acceleration sensor to realize. Gravity sensor has been a very mature technology, cell phones have also been applied early, for example, the screen flip function of the current smartphone is realized through the sensor. The sensor gets some basic data by judging the movement of people, and then combines the basic information of personal physical characteristics entered by the user before, according to some specific algorithms, to get personalized monitoring data for individuals, such as the number of steps, distance, and calories consumed, etc., so as to judge the frequency and intensity of the movement. Since each person's movement has different effects depending on the individual's physical characteristics, users need to enter their gender, age, height, weight and other information in the APP before using the bracelet for monitoring, and the information is automatically synchronized to the bracelet, which monitors the movement through the sensors to ultimately achieve the function of movement monitoring through specific algorithms.

Sleep monitoring is also realized through the same sensor technology. Human sleep can be divided into five stages according to brainwave signals: sleep onset, light sleep, deep sleep, and rapid eye movement (REM). In different stages human brain waves can change rapidly, it is interesting to note that the gravity acceleration sensor does not have the function of directly detecting brain waves, so it is the amplitude and frequency of human movements in sleep as a measure of sleep to determine which stage of sleep is in the smart alarm function of the bracelet, which will wake up the user in the REM period, "because in the REM period the sleeper will experience high-frequency, low-amplitude brain waves similar to those when awake, which are easier to wake up, and if woken up at this time, the sleeper will feel refreshed and have a good sleep."

Two, what is the working principle of the smart bracelet

Heart rate: with two electrodes (electrocardiographic principle), you check online there are ready-made programs;

Respiratory rate: you can use the three-dimensional acceleration sensor (the principle of vibration), but there is nothing ready-made program, you need to do their own hands to do the model, vibration clutter, a lot of better 'filtering algorithms, do a good job is quite a prospect!

Blood pressure, in such a simple way I do not know what to do.

Difficulty: But the difficulty of this product is, how to realize a simple product to achieve a variety of data collection without interfering with the user? The data here involves blood pressure, blood glucose, blood oxygen, pulse rate and other data. These data our normal measurement process is to draw blood to measure blood glucose blood oxygen level, containing thermometer to measure body temperature, pressure blood pulse measurement of blood pressure.

This problem is actually a lot of smart devices are now facing the problem, sports bracelet is still stuck in the gyroscope to obtain position information changes in the analysis of various complex human body state from sports to sleep and other functions, the accuracy of the data is limited.

Imagine:

1, through the principle of reflection, to detect the oxygen content of human red blood cells.

2, through the method of detecting the pulse conduction rate, calculate the time difference between ECG detection and pulse detection to get the blood pressure information.

3.Get more accurate human body temperature value by temperature sensing inside and outside sides.

4, through the metabolic heat integration method, after detecting the metabolic growth of heat, blood oxygen saturation, blood flow rate, calculate the value of blood glucose concentration.

The biggest breakthrough of this principle is to realize the non-invasive of the physical signs data obtained, with little interference to the person. Blood pressure, blood glucose, body temperature changes in the value of high blood pressure patients, diabetics, pregnant women and these categories of people to detect their own body data will be very helpful. Guo Hui said, this principle has passed the theoretical certification is planning to hardware design, of course, he also hopes to have more investment to promote the development of the project. Now most of the bottlenecks in smart devices in access to information, if Guo Hui team can realize this vision, in fact, do bracelets, watches are not a problem.

The core is a 3-axis gravity acceleration sensor, through the algorithm will be the output value converted to activity, the basic principle is to calculate the amount of overcoming gravity and inertia to do work, so you need to bring into the amount of weight to participate in the calculation, and now under the eye of all the bracelets ah tracker ah what, regardless of the brand model is synchronized with the external incoming user's own body weight set. Formulas and so on can refer to some papers in the sports profession. In addition, the bracelet has a special place is only to stay on one side of the hand, so the algorithm is more than the ordinary preset user will wear the center of gravity of the human body again tracker will not be able to, need to go through a special algorithm to correct, algorithm of the specific is a trade secret can not be said.

Basically a three-axis accelerometer, and then through the algorithm to determine the number of steps, the algorithm is the core, so you can not tell you.

What is the working principle of the smart bracelet2

One, the introduction of the smart bracelet

Smart bracelet is a kind of wearable smart device. Through this bracelet, users can record real-time data such as exercise, sleep and diet in daily life, and synchronize these data with iOS or Android devices, playing a role in guiding a healthy life through data. The main smart bracelets under the spotlight are Nike+Fuelband, FitbitFlex, JawboneUp2 and a few follow-up national brand products.

"GoogleGlass" is still on sale, "smart bracelet" is here. When the traditional e-commerce is still for the price of a certain type of home appliances, which is higher or lower "really", Tencent's e-commerce under the Yi Xun network to take a different approach, the focus will be shifted to the joint development and introduction of high-tech products. Yesterday in the domestic exclusive sale of smart bracelet "Jawboneup", become the first domestic formally enter the Internet "wearable smart devices" market e-commerce enterprises[.

It is reported that the network debut of the "Jawboneup" smart bracelet is a very popular wearable smart devices on the market. By the white-collar consumers widely popular.

Second, the construction of the smart bracelet

The main body of the smart bracelet is generally made of medical rubber, memory rubber material.

Natural non-toxic, high-grade fashionable appearance design, generous, not only has the function of sports health secretary, but also has the function of fashion accessories, the appearance of streamlined wreaths, a variety of colors.

The two ends are equipped with silver-colored coated metal caps, perfect for wearing, which makes it different from traditional bracelets with card locks or buttons.

Inside the smart bracelet is a lithium-ion battery that lasts up to 10 days, a vibration motor and a motion-sensing accelerometer. A small silver cap at the end of the bracelet houses buttons for changing settings, and another section houses a 3.5-millimeter plug for connecting to your phone.

Third, the function of the smart bracelet

Smart bracelets of this design style is quite tempting for users who are used to wearing jewelry. What's more, the design style of the bracelet is very versatile. Moreover, don't look at the small size of the little bracelet, its function is still relatively powerful, for example, it can be said to be a high-grade pedometer, with the general pedometer of the ordinary pedometer, measuring the distance, calories, fat and other functions, but also has a sleep monitoring, high-grade waterproof, Bluetooth 4.0 data transmission, fatigue reminder and other special features.

Its built-in battery can last up to 10 days, the vibration motor is very practical, and the simple design style can also play a decorative role as an accessory.

Taking sleeping as an example, set Jawboneup to sleep mode before going to bed, and then synchronize it with your iPhone device when you wake up the next day, you can see your sleeping time, awake time, deep/light sleep, overall sleep quality and other information. For weight loss and fitness people, "JawboneUP" smart bracelet is a responsible personal trainer, can tell you the daily exercise path, calories burned and calorie intake. You can also set exercise goals, such as how many steps to walk, how many calories to consume, etc., and also real-time display of the completion rate of exercise, exercise and weight loss can be quantified, for those who can not adhere to the people is a great blessing. Smart bracelet with high-grade waterproof function, you can wear a bracelet within 10 meters of the shallow sea or river swimming, overcoming the traditional pedometer can not track the defects of swimming movement, the use is also more extensive.

Smart bracelets also have social networking features, such as the ability to share sleep quality, diet and exercise, as well as mood records via Facebook or Twitter. It's also a protector for seniors. With the built-in GPS connector, it can keep the hospital or family informed of the physical condition and location at any time.

Four, how the smart bracelet works

Covered by a one-meter-deep waterproof rubber material all over the body, it is said that the texture is skin-friendly and very comfortable to wear. Offering a variety of colors to choose from, the S, M, L three sizes also meet the needs of different people. 3.5mm headphone jack can not only be used for charging, but also synchronize data with the phone. A full charge can be used for up to 10 days. The two sections of silver-coated metal caps with the Jawbone logo, accompanied by the flashing of the breathing light in different states, make the whole bracelet look very fashionable and exquisite.

Specifically configured mobile apps, by connecting to your iPhone, you can easily view your daily exercise data (including exercise time, kilometers and steps walked, calories burned, etc.) as well as sleep data (total sleep time, awake time, number of times waking up during the night, etc.), and dietary data can also be entered through your phone, and the bracelet will give you nutritional information based on the type of food you are eating, for users to refer to and adjust their dietary habits. for users to refer to and adjust their dietary habits.

Smart bracelet application development reflects what the application of data acquisition technology

Smart health bracelet application development reflects the application of "sensor" data acquisition technology; smart bracelet is a wearable smart device; smart bracelet, the user can record daily life exercise, Sleep, part of the diet and other real-time data, and synchronize these data with the phone, play a role in guiding a healthy life through data.

The application development of smart health bracelet reflects the application of "sensor" data collection technology.

Application of smart sports bracelet

Introduction: With the development of digital technology, digital has been integrated into us. With the arrival of the intelligent era, the application of intelligent electronic products in people's lives is becoming more and more popular, intelligent products are also constantly updated with the continuous updating of technology and the growing demand of users. Smart wearable devices into the people's field of vision, smart sports bracelet because of its simple operation, easy to carry and so on the advantages of the consumer's favorite. The following is the popularization of the smart sports bracelet`s application?

Applications of smart sports bracelets

The specific applications of smart sports bracelets are reflected in the following aspects:

1. Smart bracelets are not only a smart device, but also a charming accessory for users who are used to wearing jewelry.

2. Pedometer. Smart bracelet is a high-grade pedometer, which can not only accurately calculate the user's exercise steps through vibration sensing, but also accurately measure the user's exercise distance, calories burned, fat and so on.

3. Alarm clock. Smart bracelet can not only play the role of a general alarm clock, but also be able to set the fatigue time to remind the user to rest.

4, remote control. Remote control is supported by the software through the smart bracelet can realize the function of remote control. Due to the multi-brand collaboration involved, this function has not yet appeared universally on the smart bracelet.

5, through its built-in GPS connector, the user's physical condition and location information can be sent to family members or hospitals at any time, this function is very useful for elderly users.

6, the smart bracelet is waterproof, you don't have to worry about being damaged even if you wear it swimming, while the pedometer is not waterproof.

7. Health management. Smart bracelet in this regard is more like a private health butler, whether it is daily pedometer, or sleep monitoring, exercise heart rate monitoring, smart bracelet through the device to accurately monitor these data for the user's health.

8, answer calls. Answer the phone is the standard of the smart watch, do not need to take out the phone from the pocket to answer the phone, in extremely crowded places can come in handy. Currently, smart bracelets with the ability to answer calls are relatively rare.

9, sleep monitoring. Users can set their smart bracelets to sleep mode before going to bed, and then synchronize them with their smartphones when they get up, which will visually display the user's sleeping time, waking time, or deep sleep/light sleep, as well as the overall quality of sleep and other information.

With the constant upgrading of technology and the increasingly diverse and personalized needs of users, it is believed that the functionality of smart sports bracelets will continue to be enriched and more powerful in the future, and will be able to meet the ever-increasing needs of users.