Background: The steady development of China's economy has significantly improved our quality of life, but at the same time, safety and protection also occupy an increasingly important role in our lives. In daily life, the road to development of access control is becoming wider and wider, and various types of markets are available. Such access control products come one after another, from "door lock" to "access control", different application sites, customer needs are not the same. For the average family, the use of door locks is more advantageous than the use of access control, and the use of access control is not too much use for small families, and the cost is also high. For places with a lot of traffic and management, access control is more convenient and smart than door locks. For example, enterprises and communities need to apply the access control management scheme. Below we will focus on the advantages of access control.
Access control has many different functions, such as face access control, fingerprint access control, stand-alone password, swipe access control, and sometimes more popular QR code access control. Different users choose access control products to evaluate from different aspects, such as cost, selection requirements, product performance and adaptability to the installation environment.
Face access control, fingerprint access control cost is high, safety star rating can be 5 stars, the two are the same using biometric technology to identify personal identity, human biometrics usually have wei, can be measured or automatically recognized And the characteristics of verification, hereditary or life-changing are not easy to be copied, but the products on the market are diverse and the quality is also uneven. Therefore, many products can be opened by copying fingerprints and image recognition, and the safety is greatly reduced. Therefore, it is necessary to understand clearly when selecting products. Faces and fingerprint access control are generally used in places with strong confidentiality, such as banks, supervisors, etc., and also the first xuan products of company attendance.
Single-machine version password, credit card access control, this access control is mostly used in residential buildings, some office buildings, etc. The advantage is that the product cost is low, this product can only be used to open the door, which is equivalent to the upgraded version of the door lock, which solves the problem of carrying a large number of keys. The sense of weight, only 2 stars in terms of security, can not record the information of people entering and leaving, and the password is easy to be leaked, the card is easy to be copied and lost, etc. It is suitable for places with low budget and low security requirements.
The two-dimensional code access control belongs to the current popular products, mainly in the aspects of convenient use, high efficiency and intelligence, etc., mainly taking the two-dimensional code access control system as an example.
Material preparation:
Hardware: QR code reader, access controller, exit button, switch, magnetic lock, etc. You can also use the QR code cloud access control to replace the QR code reader and the access controller. The CR02E&CR02EU, which has been developed and put into production by Sebrus, has been launched on all platforms. The product is an integrated QR code reader. The pure hardware products of the device and the access controller are provided by the Sebres-related SDK development kit to the user for secondary development, which reduces the difficulty of product installation and greatly shortens the time required for product installation.
Software: background management software, micro xin applet
The background management software adopts B/S architecture, which is convenient for management. It can view personnel access records anytime and anywhere, and can add personnel access rights in the background. You can also use the pre-sales technology to understand relevant information and use the simulation account to operate in advance; The micro-xin applet is mainly used to generate the two-dimensional code. First, the personnel's shou machine number is authorized in the background management software, and then the shou machine number is registered on the micro-xin program to generate a time-sensitive two-dimensional. The code can also set the effective time and effective number of the shared code. You can search for “scan code access controlâ€.
The two-dimensional code access control system uses dynamic two-dimensional code to open the door, and the security level is 4 stars. The main advantages of the product are convenient for visitor management, simple operation, and the use of two-dimensional code. It is generally used for visitor visits, personnel access management, etc. Used in major communities, shared places, etc.
Perilla Powder
Perilla seed powder has the functions and effects of clearing away heat and dispersing cold, antibacterial and antiviral. Perilla seed powder is rich in nutritional value and is a plant that can be used both as medicine and food. After consumption, it can supplement the nutritional needs of the body. Perilla seed powder has a certain effect on improving symptoms caused by colds and symptoms such as edema and numbness of the lower limbs caused by dampness. In addition, perilla seed powder can also improve memory, enhance brain development and brain nerve function.
