This is the era of mobile payment. Are you still using cash? Then you are OUT!

This is the era of mobile payment. Are you still using credit cards? Then you are OUT!

As the pioneer users of the mobile payment era, we have already used mobile phones and bracelets to consume for a long time! Even Iron Man has changed his name to shuashua man! Have you ever heard that bracelets can be consumed? Don't worry, what will be brought to you next is the beauty responsibility of the payment bracelet world -- Brush the diamond version of the bracelet, hereinafter referred to as: [Brush]

Thank you @ Ganji.com@ Love to play computer games @Brush the bracelet and provide the evaluation products for this trial.

1、 Unpacking:

The main color of the packing box is white, with yellow and gray triangle patterns of different sizes. The upper part of the front of the package is printed with an orangutan wearing a sea urchin shirt inside the transparent plastic cover, and the [Brush] is inlaid on its chest. The lower part of the front reads "ALL IN ONE", which I understand means: [take all].

One side of the package is printed with the official account of Brushing Bracelet and the QR code downloaded from the app.

On the back is a brief introduction of the eight product features of Brush and the manufacturer information.

As an old driver who has used a variety of bracelets, these 8 functions are slightly average. The biggest highlight is APP fast recharge and balance query.

CMIIT ID：2015DP5809， Equivalent to the approval of electromagnetic radiation.

The environmental protection and recycling logo is printed on the lower right corner of the back of the packaging box.

At the bottom of the packing box is the municipal traffic all-in-one card logo, indicating that [Brush] is a product that can be consumed at any outlet with the logo. Including buses, supermarkets, shopping malls

Executive standard: GB4943-2011

[Science Popularization Time] -- Working Principle of Bus Card:

The reader/writer emits a set of electromagnetic waves with a fixed frequency. There is an LC series resonant circuit in the card, whose frequency is consistent with the frequency emitted by the reader/writer. Under the excitation of electromagnetic waves, the LC resonant circuit resonates, so that there is charge in the capacitor. The other end of this capacitor is connected with a unidirectional conduction electronic pump, which sends the accumulated charge to another capacitor for storage. When the accumulated charge reaches a certain level, the voltage will reach the voltage that IC circuit can work normally (such as 2V). This capacitor serves as a power supply to provide voltage for other circuits, reading and writing data in the card.

The technology adopted by bus IC card is non-contact IC card, not non-contact magnetic card. The difference between magnetic card and IC card lies in the storage medium. Magnetic cards store information through magnetic stripes. For example, banks use magnetic cards, not IC cards. The amount of the card is stored in the bank's system, and only your account number (card number) is stored on the card. The IC card stores information through FLASH ROM, and there is no magnetic material inside.

The contactless IC card is composed of three parts: antenna, MPU microprocessor and FLASH ROM.

If the IC card is peeled off layer by layer, the rectangular coil surrounded by several disjoint thin metal wires -- the built-in antenna. The antenna shape in the all-in-one card is similar to that of the mobile phone antenna. In addition to transmitting information, the function is also the energy device of the whole card.

MPU microprocessor and FALSH ROM are packaged in the same chip, which is the core of the whole all-in-one card. A rectangular chip with an area of about 10 mm2 inside the all-in-one card. MPU is responsible for encrypting and decrypting the signals received by the antenna, analyzing and controlling the data storage. The FLASH ROM is a storage medium, similar to a USB flash drive used to store encrypted data.

Working principle of IC card:

The card reader (that is, the machine that beeps when you swipe the card) emits a certain amount of electromagnetic waves in real time. When the IC card enters the effective range of the radio waves, the antenna will receive the electromagnetic waves. The essence of the electromagnetic waves is the alternation of electric and magnetic fields, and the changing magnetic fields will generate current in the closed loop composed of the antenna, MPU and FLASH ROM. This current provides energy for the MPU and loads certain forms of data information at the same time. The MPU first synchronizes with the card reader, obtains the card identity information from the FLASH ROM, and verifies it with the card reader. After verification, operate the amount data in the FASH ROM. After successful operation, data will be sent to the card reader, which will display balance and other information to the user.

IC card is just like a small terminal device, which can process, calculate, store and exchange data with the outside. At the same time, there is no magnetic material in the card, but the operation of the card is closely related to the magnetism, so when the external magnetic field interferes, it will still affect the work of the all-in-one card.

From the structure of the IC card, we can easily find that the failure of the IC card originates from three parts. Generally speaking, FLASH ROM is a relatively stable device. As long as the all-in-one card can be used and the amount is correct, it proves that the FLASH ROM is OK. Once the FLASH ROM goes wrong, the IC card cannot be used at all. It seems that the problem lies in the antenna or MPU. As the IC card will inevitably encounter bending and other situations during use, it is very likely that the antenna coil will be broken. This will lead to insufficient power supply or unstable data transmission. One reason may be the poor recognition ability of MPU. This is mostly related to excessive external interference during use, which is caused by long-term accumulation. For example, if the IC card is used when the mobile phone is placed close to the IC card, the signal of the mobile phone will undoubtedly have an impact on the IC card, resulting in the wrong processing of the MPU or circuit loss.

The bus card is repeatedly used, but it is also a passive card. Writing data requires special key authentication, and it is not easy to modify the data inside.

Although there are many contents, I hope you can read them patiently. After reading it, you can see that the technology of [Brush] is not comparable to other sports bracelets. On the basis of other sports bracelet functions, it also adds antenna, MPU microprocessor and FLASH ROM.

Take off the plastic shell, and you will be immediately attracted by the blazing blazing gadget!

I couldn't help showing more beautiful pictures... I was thinking about a question, why do you want to get an image of an orangutan on it? Later I realized that the reason why human beings can become human beings is through continuous evolution. After evolution, the orangutan put on the sea urchin shirt, evolved again, and finally had a heart (heart) to pay!

Unpack the packing box and take out the [Brush] and accessory box. The accessory box contains instructions, warranty card and charger.

Please note that the [Brush] package is not equipped with a power adapter.

Let's start with [Brush].

[Brush] The wrist strap is made of the first layer of calf leather. The cow leather strap is the most common strap material for middle end wristwatches. Although the calf leather is not expensive, its advantages of soft, durable, high cost performance are popular in the market. Another characteristic of the cowhide strap is that it can be used to decorate any type of watch.

The back of the watch band is marked with [Brush] LOGO and Pinyin SHUASHUA.

[Brush] It is designed with detachable ears, which is convenient for users to change watchbands of different styles according to their mood.

[Brush] The total length (including watchband) is about 23cm, the width is about 40mm, and the weight is 21.7g. The strap is about 17.69mm wide and 2.08mm thick,

It should be mentioned here that in order to cooperate with Bling Bling's [Brush], give full play to the maximum value of its appearance, and also to give users more use experience, in addition to the calf leather strap, the official has other accessories to buy.

The long one is made of silica gel, which is used for pendant; The short one can be matched with various styles of necklaces. How about putting [Brush] together with these jewelry? There is no sense of disobedience!

Long press the touch area on the four display interfaces of [Brush] to display system information, such as MAC address, movement completion, version number and bracelet model. I feel that the display of the bracelet model and version number is slightly stiff. For users, these two information do not have much practical effect.

In addition, the display screen of [Brush] can also be connected to the mobile phone to display the call number and SMS notification.

I had hoped to see the content of SMS directly on the bracelet, but unfortunately, it could not display the specific content of SMS. It is expected to be supplemented and improved in the future.

Then look at the charger:

[Brush] The charger equipped is in the form of a clamp, which is clamped when the contact is well aligned. It can be connected to the mobile phone charger or the USB interface at the PC end for charging.

This is the record of charging with QC2.0. During charging, the voltage is kept between 5.113V and 5.110V, with small fluctuations. The average voltage is 5.09V; The device detects that the charging capacity is 69mAh. It is basically consistent with 65mAh in the manual. During charging, the peak current was nearly 0.075A, and it started to enter trickle mode after 45 minutes of charging. It was fully charged in 1 hour and 14 minutes.

As a high value payment bracelet, it must be able to match various styles of users. Take myself for example, [Brush] is very compatible with my EDC.

EDC Style 1:

EDC Style 2:

EDC Style 3:

EDC Style 4:

EDC Style 5:

[Brush] In addition to the diamond version, there is also a gem version. It's also a good match.

II APP：

Registration: mobile phone number and WeChat registration are provided. The screenshots of two different mobile phones are shown above. WeChat is not installed on the left mobile phone, and WeChat is installed on the right mobile phone. I guess the app of [Brush] can automatically identify whether WeChat is installed in the system, and then give the user's third-party login information. Not bad, not bad.

After binding the bracelet, you can add additional functions such as call display, SMS reminder, alarm clock, long sitting reminder, and turning the wrist to light the screen.

According to the age, height and weight information filled in by users when registering, calculate their body health index, and give reasonable suggestions on exercise and sleep.

The first screen of the app mainly shows the amount of activity and sleep quality of the user that day. After completing the amount of exercise at the corresponding level, you can get the corresponding medal as a reward, and also get a certain amount of health coins to exchange for prizes.

The daily amount of exercise will enter the system ranking list. Click your own ranking to see the details of the day's exercise; A weekly exercise report and a line chart of health report will also be generated every week according to your different amount of exercise.

[Brush] APP will hold some activities irregularly to encourage people to do sports. I will also share some health&sports tips for you.

In addition to sports related content, the [Brush] APP also has a [Car Coming] built-in for you who often travel by bus, which is convenient for you to find the route.

How about exchanging exercise steps for health insurance? Haven't you heard of it? [Brush] It can be done.

In addition to insurance, [Brush] also gives corresponding diet, exercise, sleep prescriptions and more medical services according to your physical fitness information and sleep status.

Since [Brush] is a bracelet for payment, it is necessary to recharge the bracelet. Different from the first generation product, the new [Brush] not only provides traditional outlets and e-Music recharge, but also provides convenient ways to recharge, such as WeChat recharge and Baidu Wallet recharge. You can store full energy (balance) for your [Brush] in minutes!

If you have money in the bracelet, you have to spend it. It doesn't matter that you can't take out the remaining change when you take the bus every day. [Brush] has specially prepared a pocket money financing project for you. So that you can both spend money and make money.

3、 Disadvantages:

1. Hardware:

(1) [Brush] is not provided with screen protective film for users randomly. Take the first generation product as an example. Once the surface of the bracelet is worn, the replacement cost is about tens of yuan. The replacement cost of the second generation gemstone after polishing is about 120 yuan, and the diamond version is more expensive. (It's better to buy a new one)

(2) The diamond model cannot be seen clearly in the bright light. Due to the appearance and material problems of the diamond model, the diamond model can not be seen clearly under the same lighting conditions.

(3) . No wireless charging mode is used, and once the charger is lost or damaged, there is no other way except official purchase.

(4) The function of the three-axis digital sensor has not been brought into full play. for instance:

Although this is a wearable somatosensory game console for children, it also uses a three-axis digital sensor. Using sensors, we can get more information about children's movement, not just counting steps. It is hard for anyone to persist in running or walking. In addition, once the outdoor weather is bad, it is more difficult to exercise. Therefore, to fully tap the role of three-axis digital sensors, we can use [Brush] to provide users with collection and statistics of more kinds of motion modes.

2. Software:

（1）、

Although [Brush] can give the health index according to the physique information filled in by the user when registering. But it is only the health index. As shown in the figure above, the exercise&sleep suggestions are not tailored for different users according to their health index. It should be more intelligent here.

（2）、

Don't you think it's strange here? It is the same as the locked excel table. The same problem also appears in the ranking list. Only the position changed from the header to the footer.

（3）、

Here are the step count of January 14 and January 15. It is obvious that the interface is divided into upper and lower parts. The upper part (red) can be scrolled left and right to view the movement history. However, the lower part shows the completion status of the current date rather than the completion status of the corresponding date.

(4) Lack of diversified sports methods:

Some of them have already been mentioned, and will not be repeated here. Only two apps from friends are provided for [Brush] engineers to study carefully.

a、  Moov now

b、 Yunmai Body Fat Scale

In terms of the products I have experienced so far, these two devices both maximize the sports content in the app. Whether from the type of sports, or from the teaching of sports.

(5) The content in the APP is not well classified, and some places are in disorder, such as sports weekly reports appearing in two places of the APP; In some places, there is duplication. For example, the content of exchanging steps for health insurance appears in three places in the APP.

(5) BUG 1:

Location: Service - stock reminder.

4、 More about the three-axis digital sensor: (These contents were put forward by me when I evaluated the 2nd generation gem model of the brush bracelet, but there is still not much change at present.)

1. Sensor:

According to the characteristics of the 3-axis acceleration sensor, there are still some areas that need to be improved.

(1) With the help of 3-axis acceleration sensor, the handheld device can realize automatic picture steering. This function is built into the iPod Touch, and the pictures and information displayed by the device will automatically rotate according to the user's actions. It determines whether the equipment is in horizontal or vertical state through the direction detection of gravity vector by internal sensors, and automatically adjusts the display state, bringing convenience to users. With this point, users can make the display content face up no matter how they wear the bracelet. Not like now. In addition, this function can also be extended to the manipulation of user interface elements. For example, you can tilt the handheld device to browse the contents displayed on the screen in the up, down, left, right and other directions.

(2) At present, some professional sports bracelets on the market have already started to use nine axis sensors to automatically identify the type of movement, swimming, running, cycling, etc. through the perception of movement. With professional sports apps, users can get more professional exercise. This is also the lack of brushing bracelets. For example, the indoor 7-minute fitness in the moov now bracelet is like playing a game. It needs to be unlocked one level at a time to complete the task. With the 7-minute content, there will be a teaching video on the mobile phone screen, which can be done with the coach. Another example is the free fight in the moon now bracelet, which requires users to wear the same two bracelets to complete the task together. (This is a disguised promotion, ha ha)

(3) Algorithm: algorithm is the root of everything. The inaccurate algorithm will directly lead to the deviation of subsequent data.

Three aspects shall be taken into consideration in reasonable calculation steps:

A、 The bracelet is worn on the wrist, and the direction of movement is uncertain. The vector length change of acceleration in three directions shall be calculated comprehensively, and the walking track shall be recorded.

B、 Peak detection: through the change of vector length, the current acceleration direction can be judged and compared with the last saved acceleration direction. If it is the opposite, that is, it has just passed the peak state, it will enter the step counting logic for step counting, otherwise it will be discarded. The user's walking pace can be obtained by accumulating the peak times.

C、 Remove the interference. When judging the peak value, remove the interference by setting the threshold and step frequency, so that the step count is more accurate.

2. Sleep monitoring:

Sleep monitoring is a major function of smart watches and bracelets. It analyzes sleep status through an Actigraph. But most products are judged by body movement, which is not scientific and accurate.

The following three aspects are involved in the recording of sleep with bracelets:

1. Most bracelets need to manually turn on/off the sleep mode. Once you forget, you cannot record the sleep status. Or the record is inaccurate

2. Once you roll over, the bracelet will think that you have shallow sleep, but rolling over does not affect the quality of sleep

3. Are you used to sleeping with a bracelet? Can you persist?

In fact, the current smart bracelet is only a reference tool, which cannot replace professional medical examination. Relevant data can only be used as a reference. How about the quality of sleep? It is too limited to judge by only one bracelet.

Another point is that I have fed back since the first generation of products. When I brush the bracelet to judge the sleep time, 24 o'clock is the critical point. The sleep before 24 o'clock is recorded as the sleep of the day, and the sleep after 24 o'clock is recorded as the sleep of the next day.

3. Wearing method:

I have also tested and used some professional motion monitoring bracelets before. For those devices, the most effective way to record steps (walking and running) is to wear the bracelet on your ankle. In addition to recording the number of steps, it can also record the motion track in combination with GPS, and give a most detailed motion report in combination with the step frequency. If it is simply worn on the wrist, it is really a bit inaccurate. It is also hoped that you can pay attention to brushing the bracelet.

As a VIP user of [Brush], I have been using the current diamond model from the brush generation. After using it for so long, I have some feelings for brushing the bracelet. At the beginning, I was the first person who proposed to make the bracelet into jewelry (now you can use accessories as necklaces). I want to see the change of the brush bracelet as a sports+payment bracelet, not just as a payment bracelet.

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