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Mainstream application technology and implementation of mobile phone access control

May 26 , 2021

Mobile applications have been extremely popular in recent years. Mobile Internet methods such as WeChat Pay and Alipay to pay parking fees have become popular in the parking lot field, which has led to the rise of mobile phone access control in the tepid access control industry.


   At present, there are four main solutions for smart access control at the technical level: Bluetooth, NFC, QR code, and WIFI. The following is a simple analysis of the implementation of these four technologies.


1. Bluetooth technology


  Technical background: Bluetooth technology is already very mature. It is a wireless technology standard that can realize short-distance data exchange between fixed devices, mobile devices, and building personal area networks. Bluetooth can connect multiple devices, overcoming the problem of data synchronization.


Implementation method: Bluetooth access control can be connected to the access control at a distance of about 8 meters without interference from obstructions. The Bluetooth service is called through the app on the mobile phone, and smart hardware is installed on the access control. After receiving the Bluetooth command, the door lock can be controlled. .

Bluetooth Access Control

2. NFC technology


  Technical background: This technology evolved from non-contact radio frequency identification (RFID). Communication (Near Field Communication, NFC) is a short-range, high-frequency radio technology that runs at a distance of 10 cm at a frequency of 13.56MHz. Its transmission speed is 106 Kbit/sec, 212 Kbit/sec or 424 Kbit/sec.


   Implementation method: First, a mobile device with an NFC function is required. Second, you need to configure hardware that can read virtual credential cards from NFC-enabled mobile devices. Finally, an ecosystem must be developed that includes mobile network operators, trusted service managers, and other operators that provide and manage mobile credential cards.


3. QR code technology


Technical background: Two-dimensional bar code/two-dimensional bar code (2-dimensional bar code) is used to record data symbol information in black and white graphics distributed on a plane (two-dimensional direction) with a certain geometric figure according to a certain rule; in the code In the programming, the concept of "0" and "1" bitstreams that constitute the internal logic of the computer is used cleverly, and several geometric shapes corresponding to the binary system are used to represent the text value information, which is automatically recognized by the image input device or the photoelectric scanning device. Reading to realize automatic information processing; has some common features of barcode technology: each code system has its specific character set; each character occupies a certain width; it has a certain check function, etc. At the same time, it also has the function of automatically identifying different lines of information and processing graphics rotation change points.


Implementation method: QR code access control uses a QR code as the medium and carrier for personal identification. The system allocates an encrypted QR code to each user in real-time. The user can open the corresponding QR code by scanning the QR code on the access control device. Door lock.

QR code access control

4.WIFI technology


  Almost all smartphones, tablets, and laptops support Wi-Fi Internet access, which is the most widely used wireless network transmission technology today. WIFI is not affected by the hardware chip and operating system, and the connection speed is fast, and it can be connected one-to-many, and it can also be directly connected to the Internet. The WIFI protocol implements the globally unified standard 802.11n protocol, which is forward-looking. Since its release, it has never been replaced, there is no compatibility problem, and it is compatible with all mobile phones.


   Implementation method: It is widely used in smart communities, usually used with monitoring, and access control management through APP.


Summary


   The emergence of mobile phone access control has made people's lives smarter and more convenient, but there is still a long way to go before it is fully popularized. For now, mobile phone access control can only be said to be the icing on the cake, and the application scenarios are also very limited. In the practical application of the solution, the combination of mobile phone access control and traditional access control methods can not only meet the intelligent needs of the younger generation but also retain cards or fingerprints to meet the needs of the older generation.


Author: Written by Mr.Andy Zhang from S4A INDUSTRIAL CO.,LIMITED

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  S4A-Security For All.S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. We attach great importance to the partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years.       S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.In the realm of access control, one company stands out for its unwavering commitment to providing security services for everyone. S4A, which stands for "Security for All," has been at the forefront of access control technology for the past 13 years. With its own state-of-the-art factory and a strong focus on research and development, S4A has continuously delivered cutting-edge access control machines with the latest functions. Their dedication to product quality, customer feedback, practicability, and cost performance sets them apart as a leader in the industry.Factory and R&D Expertise:S4A takes pride in its fully-equipped factory, where skilled engineers and technicians work tirelessly to develop and manufacture access control solutions that meet the highest standards. The company's investment in research and development has resulted in a steady stream of innovative products that cater to evolving security needs.By staying ahead of the curve, S4A ensures that their customers have access to the latest advancements in access control technology.Quality Assurance and Customer Feedback:At S4A, product quality is of paramount importance. The company adheres to rigorous quality control procedures throughout the manufacturing process to guarantee the reliability and durability of their access control machines. Each product undergoes comprehensive testing to ensure it meets industry standards and exceeds customer expectations. S4A also places great value on customer feedback, actively seeking input to continuously improve their products and services. By listening to their customers, S4A maintains a customer-centric approach and delivers solutions that address real-world security challenges.Practicability and Cost Performance:S4A understands that access control solutions must not only be technologically advanced but also practical and cost-effective. The company's emphasis on practicability means that their products are designed to be user-friendly, easily integrated into existing systems, and adaptable to various environments. S4A's access control machines are known for their intuitive interfaces, simple installation processes, and seamless compatibility with other security systems. Additionally, S4A strives to provide cost-effective solutions without compromising on quality. Their competitive pricing ensures that security is accessible to businesses and individuals of all sizes.With 13 years of industry experience, S4A has cemented its position as a leading provider of access control solutions. Through their dedication to "Security for All," the company has set a benchmark for excellence in product quality, customer satisfaction,practicability, and cost performance. S4A's in-house factory and research and development capabilities enable them to stay at the forefront of technological advancements in the field of access control. As the company continues to evolve and innovate, S4A remains committed to empowering individuals and organizations with the highest level of security, ensuring that everyone can enjoy the peace of mind that comes with a reliable and efficient access control system.We can create value for you!Quality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customer...<
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