The difference between online handwriting and offline handwriting

Offline handwritten Chinese characters are generally related to stroke recognition inventory in the local area, which occupies a certain space and is fast recognition, but the error rate is higher than that of the online handwritten version, and there are fewer associated words. The online handwritten Chinese character recognition library is read from the cloud, which occupies less local space and is slightly slower than offline recognition, while the error rate is low, and there are many associated words and frequent updates.

Pattern recognition is a technology that uses computers to automatically recognize characters.

An important area of application. In production and life, people have to deal with a large number of words, reports and texts. In order to reduce people's labor and improve processing efficiency, in the 50s, the first general text recognition method was started, and an optical character recognition device was developed.

In the 60s, practical machines with magnetic inks and special fonts appeared. In the late 60s, a variety of font and handwriting text recognition machines appeared, and their recognition accuracy and machine performance basically met the requirements. For example, the handwritten digital recognition machine and the printed English digital recognition machine used for letter sorting.

In the 70s, he mainly studied the basic theory of character recognition and developed high-performance character recognition machines, and focused on the research of Chinese character recognition.

Text recognition generally includes the collection of text information, the analysis and processing of information, and the classification and discrimination of information.

Information collection converts the grayscale of the text on the paper into an electrical signal and inputs it into the computer. The information collection is realized by the paper feeding mechanism and photoelectric conversion device in the text recognition machine, and there are photoelectric conversion devices such as flying spot scanning, video camera, photosensitive element and laser scanning.

Information analysis and processing The converted electrical signal is normalized by eliminating noise and interference caused by factors such as printing quality, paper (uniformity, stains, etc.) or writing instruments, and carrying out various normalization processes such as size, deflection, shade, and thickness. Classification and discrimination of information is performed to classify and distinguish the text information after noise removal and normalization to output the recognition result.

Offline identification and online identification are distinguished by the difference in the underlying input device.

It's no different, it's all too different. One needs to be connected to the Internet, and the other is not.

Is that okay?

There are many reasons why you can't turn on the machine, you need to check them one by one, you can charge it for half an hour first, try to see if it can be turned on, if it can't be turned on, it may be a hardware or software problem, and you need to take it to a repair shop to test.

What should I do if my vivo phone doesn't turn on.

Make sure that the battery of your phone is sufficient, and then connect your phone to a power source to charge it for a period of time before trying to turn it on. You can also press and hold the "Power Button" and "Volume + Button" at the same time to try to enter the recovery mode, select "Clear Data" first, and then select "Restart" after the interface jumps.

How long has the phone been used, if it is a new machine, hurry up and find the after-sales service that sells the mobile phone, simply change it, otherwise the trouble is still ahead, if it is a mobile phone that has been used for a long time, it may be a problem with the battery, and if you want to use it, go to the repair shop to see if there is any value in repair! If not, don't use it!

Are you sure your phone battery is charged? If there is electricity, it still can't be turned on, so you have to take it for repair. If the machine is too old, it is recommended to replace it.

Fully charge it first and then turn it on, if it still can't be turned on, then consider changing it.

If you are using a Huawei phone, pressing the power button will not turn on, the indicator light will not turn on, and the screen will not respond, please follow the steps below

1.Please check whether the power button is damaged, whether there are any problems such as insensitive pressing.

2.It could be that your phone is running out of battery, make sure your phone is fully charged. When the phone runs out of battery and may not turn on immediately when it is just plugged in to the charger, please use the standard charger to charge continuously for a period of time before trying to turn it on.

3.Some mobile phones have a smart key, and the three buttons are the volume button, the power button, and the smart key from top to bottom. Please press the power button in the middle to turn on the machine, and press the Zhiling button to turn it on.

Go flash your phone and try it, but there is always a risk in flashing it. It is possible that it will never turn on again.

It may be that the battery is not working, or there may be other problems, go fix it.

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

There may be no electricity, so flush the electricity and turn it on!

Then you can go to the business hall and consult.

The Sony Xperia M also features a system and a built-in 5-megapixel camera, an Exmor RS sensor and a Sony OmniBalance design, with LED lights and autofocus.

Apple, Huawei, Samsung, Meizu, Xiaomi, OnePlus.

Huawei, Apple, Samsung international three brands.

Objectively speaking, it's better to take a bite of the apple.

If your mobile phone cannot access the Internet normally, please check the following conditions:

After upgrading to 4G**, if you do not restart your phone, you will not be able to use the Internet function normally;

Check whether there is a network, it is recommended that you can use it in a place with a strong signal;

Check whether there is still a credit in the account, if the balance is insufficient, you need to recharge before you can use it;

Confirm whether the parameters of the mobile phone have been set;

Check whether the USIM card is inserted, if it has been inserted but still cannot be used, it is recommended that you go to the business office to check whether the USIM card is faulty, or replace the card for testing;

Check if there is any problem with the phone, it is recommended that you change the phone for testing.

If the above situation is not resolved, you can contact your local customer service to deal with it.

The best-selling phones in the first half of the year are Huawei's Mate30 series, Huawei P40 series, Xiaomi 10 series, Redmi K30 series, and Honor 30 series.

The best-selling phones in the first half of the year are Huawei P40, Samsung S20, and Little 10, and I think these phones are quite good.

Meizu Xiaomi. These two phones were the best-selling phones in the first half of the year. Because even if he is a thousand-yuan mobile phone, he still has many special advantages and is highly sought after by consumers.

If you are using a Huawei phone, we recommend that you do the following:

1. Please try to place your phone in a dry and ventilated place and use a paper towel to blot the water stains on the surface of your phone.

2. If the phone is turned on, press the power button to turn it off; If your phone is turned off, don't try to turn it on.

3. Please take out the SIM card and microSD card.

4. Take your phone to a Huawei customer service center as soon as possible to avoid unnecessary losses.

Precautions: 1. Do not move or shake the mobile phone frequently after entering the water, so as to avoid the spread of moisture inside the mobile phone.

2. Do not bake with a hair dryer or stove after entering the water, so as to avoid the liquid being blown into the inside of the mobile phone and damaging the mobile phone at high temperature.

3. Some mobile phones can be turned on and used normally after simple treatment, but the mobile phone is composed of precision electronic components, and there is a hidden risk after water ingress, so it is recommended not to try to turn it on.

4. During the after-sales maintenance process, data may be lost.

1. Water ingress and crashing are the two taboos of mobile phone use, and the water ingress of mobile phones is particularly serious. According to an engineer from Guoxin, after the mobile phone gets into the water, the first thing to do is to turn off the power, of course, not to press the shutdown button, but to remove the battery. Because as soon as you press the shutdown button, the mobile phone will be powered on, and it is likely that a short circuit will occur, causing damage to the mobile phone, and then send it for repair as soon as possible.

If your phone's warranty has expired and you don't want to send it for repair, you can boldly take it apart! Wipe the parts of the phone with a tissue, and then blow it with a hair dryer for a few minutes, in order to ensure that all the internal parts are dry, it is advisable to air dry the phone for a few more days before you can turn it on again.

2. Once the mobile phone gets into the water, the battery should be removed immediately, and the mobile phone must not be turned on immediately to understand the condition of the mobile phone. After removing the battery, do not use a hair dryer to deal with it, and immediately send it to the repair professional to disassemble the machine for water treatment, such as falling into sewage or corrosive liquid, and use ultrasonic cleaning and drying before proceeding to the next step of maintenance. If the mobile phone can still be used after water penetration, it should be sent to a professional to deal with it to avoid corrosion of the circuit board and make it impossible to repair.

3No matter what kind of water the phone falls into, you should remove the phone battery first and no longer power the phone. If it falls into clean water, remove the battery and clean the phone with anhydrous alcohol, because the alcohol volatilizes quickly, and the water on the circuit board can be volatilized together. Then use a heat gun or hair dryer to dry the circuit board, and then power up the test machine, and most mobile phones will work normally.

If it falls into the sewage, it should be cleaned immediately, and the dirt that can be seen should be cleaned first. Use a brush to brush off the impurities attached to the pins of the components. Then, the circuit board is scrubbed with an alcohol cotton ball, and if the pollution is serious, the impurities must be vibrated out with the help of an ultrasonic washing instrument.

Then use an air gun to dry the circuit board, and then repair all the chips.

You should take the battery off and dry it with a hair dryer, don't turn it on, and wait for tomorrow to go to the after-sales service, and let them wipe the circuit board clean with alcohol for you. You should not wipe it dry after booting it, it is easy to burn the phone motherboard. There is also the mobile phone after the water, to the after-sales must be honest, the current mobile phone has a test strip thing, that is, to see whether it enters the water, it is generally white, and it turns red after entering the water.

Water ingress on the phone. Whether it falls into a basin of water or is covered with water, it is a serious problem. If it is more serious, it is likely to lead to the direct scrapping of the mobile phone.

After the phone gets into the water.

Get off the battery immediately.

Don't go up again.

Because after you get into the water.

Motherboard wiring is prone to short circuits.

Your symptom now is a short circuit in the circuit.

If you can't send it to a mobile phone repair shop right away.

Dry it first with a blow dryer.

Tomorrow I will send it to the mobile phone store for repair.

That's basically no problem.

I'm a phone fixer.

Like some customers' mobile phones get into the water.

Blow yourself with a hair dryer.

Then let it out in the sun.

I don't think there's a problem.

Just take the battery and try it on.

As a result, some of them can be turned on.

And everything works fine.

It won't take long.

It won't turn on again.

Take it to me for repairs.

As a result, the mobile phone power supply IC burned and changed to 80 yuan.

If you start to repair it, you can fix it for 30 yuan.

If the phone accidentally gets into water, you can try the following ways to deal with the phone urgently to avoid secondary injury: Take the phone to a dry and ventilated place, and use a dry paper towel or towel to blot the water stains on the surface of the phone. If the phone is turned on, press the power button to power off; If the phone is turned off, please do not try to turn it on, and do not shake or shake the phone frequently after the phone gets into the water to avoid moisture in the phone.

Signs of water ingress were found.

Don't turn it on like this.

Shut down immediately. Remove the battery.

Send it to the place of repair.

Let him turn the machine on for you.

Wash with alcohol.

Blow dry and pack. Turn it on again and try to turn it on yourself several times before.

It is estimated that the inside of the phone is seriously damaged.

Because water ingress can cause a short circuit.

It will corrode the circuit board.

Many people think that the mobile phone is broken, but in fact, there is no need to repair it, and it is good to use it at home.

Quickly take off the battery, and then blow it vigorously with a hair dryer, about 15 minutes to half an hour, pause to see if there are any water droplets in the phone, you can see it in the mirror. If you have it, you can leave it for 2 hours and blow it.

What should I do if my phone gets water? You must know this first aid method!

My own original method of dealing with the water after the phone gets into the water.

Yesterday, the phone accidentally fell into the basin, and there was no way to do some simple treatment by myself, but I found it more effective, and there was no problem with the phone afterwards.

1 First of all, find a container with a good seal, not too big, it can hold the phone is almost the same!

2 Find a few packets of desiccant, as for desiccant, you can find it inside the puffed food! Rely on lime powder 3Find an electric grill and heat it slightly.

3 Put the phone in a cup with the desiccant, seal it well, and it will be almost good the next day.

Blow with a hair dryer. You can also put it on for a while, and it will be fine in a few days.