【  Foreword: seduce your heart 】

  USENSE (small U for short) is a badminton sensor. A sensor fixed on a badminton racket, which uses six axis sensors to conduct professional data analysis, capture and analyze the user's movement track in real time, help you record the speed and passion of each racket, comprehensively display the individual's hitting characteristics, offensive and defensive strategies and physical fitness, and provide users with professional advice to help improve and optimize, so that skill improvement can be seen! It can comprehensively count the players' hitting data, and specifically push the recorded teaching videos. It can also 3D reproduce the service process, and estimate the potential ball speed and other results. However, compared with these cool functions, its practical value attracts my experience more.

  【  Packaging: Love for the first time 】

  The badminton sensor is a simple and clear outer package. The packaging box is the same size as an ordinary mobile phone box. Mainly white. The trademark of the badminton sensor printed with USENSE. A small badminton is printed in the upper left corner. Then you will see a big red flower (Lei Feng tries it out).

The basic functions of the badminton sensor are introduced at the bottom. Contact details with merchants.

Sports artifact is printed on the left side The intelligence follows the "core" and app function icons and system requirements. On the right is the exclusive download app of USENSE badminton sensor's WeChat official account.

【  Appearance: Goodbye obsession 】

The first thing we see in the packaging box of USENSE badminton sensor is the instruction manual of the quick start guide.

I can't wait to take out the manual and see the little guy.

Small U The package contains sensor, elastic base, charging line and instructions; Users need to provide their own USB charging head device.

The charging line is connected with the sensor through two contact angle connectors, and the computer will not recognize it. When charging, all the light strips in the middle of the fuselage will light up gradually. It takes about 2.5 hours to fully charge once; It can be used for 5 to 8 hours (depending on the usage of Bluetooth).

Small U badminton Sensor weight 8g The elastic base weighs 12.5g, which is about 7% of the static weight of the racket. It seems small in the hand, but it still has a little weight. Family portraits

After assembly, the sense of visual presence is strong, and the touch of the end of the racket handle is also significantly changed.

【  Performance: feel attentively 】

The ultra light weight of 8g will never affect your swing;

Super adaptability: applicable to badminton rackets of any model and brand;

Detailed data: clearly check the swing speed, local distribution, match winning and losing, and playing history, so as to easily master your own playing characteristics and sports types;

Personal trainer: select equipment for you, push event information, and provide professional technical guidance training with video tutorials;

Social interaction and sharing: WeChat leaderboard, point challenge, sharing sports enthusiasm with friends, and making friends in competitions.

【  app： Functional core 】

    Small U The interface style of the app has changed dramatically, and it is decorated with black and green, which is consistent with the overall design. The client home page (top left) highlights Small U The core characteristics of (such as the flickering ECG curve). You can simply start the machine by gently shaking it. Click the link between this phone and the sensor. Successfully connected. After connecting, you will be prompted to upgrade the firmware. I chose to upgrade (the upgrade process takes about 3-5 minutes).

The functions of app client are divided into six categories: statistical analysis, practice mode, discovery, account, calendar and sharing.

Statistical analysis (displayed by a very eye-catching wheel icon): the content includes the maximum beat speed, swing times, heat consumption, and exercise time. The details include the total number of maximum beat speeds, the total number of swing times and the total number of heat consumption recorded in a clear table. The first round (the system automatically recognizes the next round after every interval). The movement time is accurate to minutes and seconds. The chart can show the number of shots by month. If the table slides to the left, the words "win" and "lose" will be displayed. Click the right arrow of the table to display the "round report" of the first round results. It is divided into two parts: first, the "hitting speed" of the players is measured by the scoring rate, with short comments. On the basis of "speed decomposition" (including killing, overhand and reverse handball), the column chart and the percentage of hitting speed (purple is overhand, blue is underhand, red is killing) are also given. There are also recommended videos for learning relative needs. In fact, the "hitting level" of players is measured by percentage, and is accompanied by short comments. On the basis of "type decomposition" (including kill ball, flat draw, small ball, pick ball, high distance ball), the spider web chart and the speed percentage of hit type (green part) are also given. There are also recommended videos for learning relative needs. The overall performance of "round highlights" (expressed in time, percentage, hitting speed and type respectively).

Practice mode (reflected in 3D mode): swing speed, maximum speed, swing times, average kill, and movement time. After entering the practice mode, there will be the words of 3D mode. Click in to see the manikin ready. There is an operation bar at the bottom of the interface. Every time you swing the racket, it will record the arc of your swing in great detail.

Discovery: It has rich content, including short films of playing badminton, funny short films, awards in the competition, and wonderful reports about Xiaou. Video, equipment, challenge, purchase of small U. Popular information, usage tips, video recommendation, equipment recommendation

Account: user information, history, WeChat leaderboard, firmware, about, purchase, last synchronization, later, exit.

Calendar: click the calendar in the upper right corner of the home page to view the history of exercise records. Each time you play badminton, there will be a record, and a circle will be drawn on the relative=date. If you want to view the record of the day, click in to see the details of the exercise time of the day. If there is no feather on the next day, there will be no record on the date.

Willing to share: there are four small characters "Willing to share" in the upper right corner of the main interface statistical analysis. Click to enter, the interface that needs to be shared will be displayed, including QQ space, WeChat friends, WeChat friends QQ、Facebook、Google+。 I shared my WeChat friends and recommended them.

【  Experience: happy to use 】

Installation steps: first, take out the badminton racket you want to test, Since it is installed at the bottom of the racket handle, I think it will have a great impact on the swing of the racket. I have a concern~waiting for the test!

1. The strength (swing speed) and 3D trajectory should be fairly accurate. The motion state of a rigid body can be described by the motion state of a point on the rigid body. In other words, as long as the sensor is "firmly" connected to the racket, and its six motion parameters (translation and rotation in three directions in space) are accurately measured, then the racket's motion state can be accurately calculated from this.

2. The intensity (active time) and hitting type are more reliable. These automatic state judgments based on racket motion parameters (possibly including hitting position) have the technical difficulty of shoulder to shoulder sports bracelets.

3. Stability (hitting position) is basically reliable. At the same time, the motion parameters of the racket and the vibration signal of the racket handle are analyzed. The sensor can also calculate the hitting position more carefully by analyzing the vibration signal in time and frequency domain. However, the movement bracelet used for deformable body may not analyze the vibration signal.

4. The potential ball speed and rotation are for reference only. The movement of badminton is calculated from the racket movement,

[Suggestion: I understand your heart]

1. It is better to configure it as a pair, so that two people can feel and improve their playing skills together. Otherwise, we should all rush to play ha ha!

2. A location function can be added to the app. If the small U is too small, it will not be found by accident.

【  Conclusion: expressing sincerity]

In the past, playing badminton was just for fun. I didn't think about its sports effect, let alone whether it played well or not. Play badminton blindly and simply. I am also a professional badminton player when I have little U, so I can consider playing games. Ha ha!!! Small U uses six axis sensors to conduct professional data analysis, capture and analyze the user's movement track in real time, help you record the speed and passion of each shot, comprehensively display the personal hitting characteristics, offensive and defensive strategies and physical condition, and provide users with professional ideas to help improve and optimize, so that skill improvement can be seen!