Wireless Access Control Technical Note


Wireless Access Control Technical Note
Wireless Access Control Technical Note
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The access control system, as the name implies, is a system for controlling the entrance and exit passages, which is developed on the basis of the traditional door lock. The traditional mechanical door lock is just a simple mechanical device, and today’s access control system has already surpassed the simple doorway and key management, and it has gradually developed into a complete access management system. It plays a huge role in administrative management such as work environment safety and personnel attendance management.It is also widely used in various turnstile gates, such as swing barriers,tripod turnstile.

Traditional mechanical door locks 

Traditional mechanical door locks, whether it is a loophole in structural design or improper key management, all make the security of mechanical door locks loopholes. In order to solve these problems, electronic magnetic card locks and electronic password locks have emerged, leading access control into the electronic age. However, with the continuous application of these two electronic locks, their own defects are gradually exposed. The information of the magnetic card lock is easy to copy, the wear between the card and the card reader is large, the failure rate is high, and the safety factor is low. The problem with the combination lock is that the password is easy to leak, and it is impossible to check, and the security factor is low.

 With the development and innovation

With the development and innovation of science and technology, the access control system has ushered in the era of biometric identification. Biometric identification technology has the advantages of not easy to forget, good anti-counterfeiting performance, not easy to be forged or stolen, portable and available anytime, anywhere, etc. It is safer, more convenient and stricter in identity identification. However, the disadvantage of biometric access control is that the cost is high, and the physical properties will change according to the environment. Therefore, with the continuous application, the disadvantages of biometric identification are gradually revealed. In order to make up for the defects of wired access control, such as complicated wiring, difficult maintenance, variable physical properties, and low safety factor,

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 Wireless access control products

Wireless access control products are born in response. From birth to the present, products through FSK, GPRS, Bluetooth and other transmission methods have emerged through the continuous evolution of technology. At present, the most widely used in the market is to use Wi-Fi and GPRS for transmission. Wi-Fi was originally used in attendance machines and consumer machines, and later extended to the access control industry with the development of technology. And GPRS was not used in the access control industry at first, but in special places such as ports, docks, warehouses, etc. However, with the continuous upgrading of wireless transmission technology, the Wi-Fi transmission method has gradually developed rapidly. “

In addition, with the research and development of short-range wireless technologies such as ZigBee, it has a certain advantage in the stability of the transmitted signal, the speed is also ideal, and the device networking is also more convenient, so it is gradually being recognized and applied by the market. At the same time, with the rise of IoT technology, IoT access control products gradually occupy the mainstream position in the market.

The difference between 

The difference between traditional access control and wireless access control is mainly reflected in the convenience of installation and the safety of use. The access control system has been accompanied by a lot of wiring and cumbersome installation projects since its birth. A complete access control system consists of eight modules: card reader, controller, electric lock, exit switch, door sensor, power supply, and management center. Each module needs to be wired. At the same time, the front and back sides and the top of the door frame and the top of the door must be punched to install the equipment, which not only damages the original design style of the building in installation, but also the tedious construction is an unavoidable problem.

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And wireless access control simplifies access control equipment to the extreme: a battery-powered lock. There is no need to install any auxiliary equipment around the door, except for the opening of the door to install the lock. The whole system is concise and clear, which greatly shortens the construction period and greatly reduces the cost of later maintenance.

 Compared with the two,

Compared with the two, the wireless access control is superior to the traditional access control in terms of convenience and energy consumption. More importantly, the frequency hopping and encryption characteristics of the wireless Internet of Things access control system double ensure the security and reliability of the wireless access control, ensuring that the access control system is in the off-time.

In addition, for the solution of wireless access control in the state of power failure, the access control system will require unified installation of UPS during installation to maintain normal operation after power failure, but some people choose to install backup batteries, but this method has certain limitations , Because the backup battery is prone to be dead or damaged, and it is troublesome to replace, it cannot guarantee the supply of power in the state of power failure.

The wireless acces

The wireless access control has two processing modes for the access control in the power-off state: for important access control, it will be automatically closed in the power-off mode, and for special channels such as fire exits, it will be automatically turned on after the power is off. For enterprises, more companies will choose to integrate wireless access control with mechanical locks to deal with access control security in a power-off state. Therefore, the current application of wireless access control is more integrated with wired access control in the market in order to fully exert its functions.

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