When it comes to QR codes, many people think of QR code payment and QR code ride, but now... QR code can also open the door! Two-dimensional code has long been a common occurrence. It can be said that the use of two-dimensional code has accelerated the death of card-like substances. More and more people are more inclined to use QR codes for the simple reason: the picture is convenient.
There are a wide variety of access control products, there is always one that is suitable for you; the access control on the market has a card type, a password type, a fingerprint machine, a face machine, a two-dimensional code, etc. but there are also composite types, such as a two-dimensional code. , swipe, password integration; fingerprint, card integration; face, card integration, etc. ... first talk about the QR code access control, after all, so popular
I don’t want to talk about how widely the coverage is used. Look around you, the low-headed people are always so eye-catching. Especially for the application of QR code payment, hand ji is your wallet, which leads us to be more inseparable; hand ji is also your life, because your friends are in hand. Therefore, using the hand ji QR code to open the door is to meet the needs of most people, because your hand is about to act as a key.
Suddenly I thought of a sentence: "The so-called red is not much." The same is true for the items. When more and more people pay attention to you, some people start to pick faults. Of course, not all suggestions should be denied. Some suggestions It is worthy of being adopted.
You said, "What should I do if I lose my hand and lose power?"
This is a question that many people want to ask. In fact, it is very simple to solve.
If the hand is lost, the bright person does not say slang - you can't open the door with the QR code. However, you can use the “recryption password†of the back-up army. Although the two-dimensional code access control supports a variety of identification methods, but for ordinary people, there is a hand ji will not carry the second thing to open the door, such as IC card, identity zheng , CPU card, etc.; if the hand ji does not have electricity, it is ok to use the QR code to open the door, because the two-dimensional code access is opened by the micro-xin program, because the QR code is registered by the hand number. Therefore, the hand ji number is placed on the other hand ji, and the two-dimensional code generated after logging in using the ji number to obtain the verification code is the same.
If you are really worried, there are other solutions, such as:
The use of face recognition, fingerprint machines and other biometric access control, no need to take the door, as long as people do not lose. Each product has its own unique advantages, but also has its own corresponding disadvantages. These are inevitable, we can do it, and strive for stability in product quality!
You said, "The QR code is not safe to open, what if you copy it?"
This problem actually hurts many people's pain points, because your products are convenient, if not safe, it is no good. But it can't be partial, because the places you use are different, and the needs are different. Just some of them need static QR code to open the door. The two-dimensional code access control on the market is divided into dynamic two-dimensional code and static two-dimensional code. The dynamic two-dimensional code is opened with a two-dimensional code that is refreshed from time to time. Just like the two-dimensional code of the ride, it refreshes every minute and shares the two-dimensional code. The code is valid for 10 minutes, but it can also be selected according to the individual needs of the customer. If you don't believe it, try it, and you can understand it by searching for the “scan code access†registration.
Therefore, please do not use your mind to limit the two-dimensional code access control.
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During the maintenance of the mixing station, the main power supply must be cut off, the door of the distribution cabinet must be locked, and the key should be kept by the electrician.Power cutting and transmission must be operated by electrician.When starting the belt conveyor, mixing host, and other motors, it is necessary to observe whether there are people or other sundry things on the motor, in order to prevent injury or damage to the equipment when starting. When cleaning, it is strictly prohibited to flush the electric motor, electrical switch, solenoid valve and other electrical appliances with water to prevent electric shock and damage to electrical equipment.When the mixer is working, it is forbidden to stand in the discharging area.Non-operators are forbidden to enter the control room, smoking and doing things unrelated to the operation are prohibited.There is no operator in the operating room. Power must be cut off and doors and Windows must be locked before leaving.
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