Security with Chinese characteristics - access control card

When foreign brands are emphasizing the security of access control, domestic users and integrators only emphasize convenience. As a result, the concept of a card was proposed. When designing the project, a card is required for door opening, attendance, consumption, parking, patrolling, and elevator control. The choice of cards from the initial EM card, to the Mifare card, to the current CPU card, there are other specific cards, the general trend is that the card encryption rules are more and more stringent, greatly reducing the possibility of card replication.

The access control card system is a very small part of the Internet of Things. The Internet of Things covers a wide range, which poses a great challenge to the access control card system. Previously, the card system for access control was an independent system. It was relatively closed, and applications such as door opening, attendance, consumption, patrol, elevator control, and parking lot were performed around the card; now, with the development of automation, the system needs to cooperate with fire alarms and CCTV. Linkage, effective integration with the BA system (building automation system), effective integration with the information release system and so on.

1) There are generally three ways to achieve linkage with fire alarms. First, the soft linkage of fire is achieved through OPC; secondly, fire linkage information is received by the fire linkage controller in the access control one-card product; and thirdly, the fire linkage is forcibly executed through the power-off of the release device.

2) There are generally two types of expressions in association with CCTV. First, the access control card device or the system itself supports the camera function, which can be used to record and capture the scene. Second, the access control card device or system transmits the alarm signal to the CCTV system, allowing it to record and capture.

3) In combination with the BA system (Building Automation System), the interactive display BA system will generally monitor the temperature and humidity. The access control card device is generally installed near the door. The user can easily see and see, then the BA will be The temperature and humidity are transmitted to the LCD screen of the device, so that the user can easily understand the current situation. The integration with the BA system is often accomplished through the building automation protocol, and the Sedona protocol standard is more popular and convenient on the market.

4) The access control card system has the information release function. Many times, the information is released as an independent system. For example, Focus Media, which you see, hangs the TV on both sides of the elevator or in the building hall to play advertisement information. The access control card system can also perform some functions of information release, such as displaying weather information and welcome messages on the LCD screen of the card reader. Currently, some devices on the market use touch screens. When some companies need employees to participate in the voting, we can use the functions of the one-card device to allow participants to swipe their cards on the device and then select the information to be voted on the touch screen to implement the functional extension of the card system.

In recent years, driven by the rapid development of the economic environment and the country's favorable policies, China's security products market has continued to expand and grow rapidly. Among them, access control products have seen expansionary development.

From the perspective of front-end identification devices, non-contact IC cards are the absolute mainstream, accounting for about 90% of the market; from the perspective of output value, 4-door and 2-door controllers dominate the market; from the sales point of view, single door And two-door controllers exceed other types of controllers; the reader market, high-end products, and mid- to low-end products are approximately 1:3.

From the system architecture point of view: there are RS485 architecture or RS485IP network hybrid architecture or all-IP network architecture, three coexist, but the RS485 architecture is the most popular, in recent years, all-IP network architecture has developed rapidly, but the IP network architecture is still not the mainstream of the market. Users prefer the hybrid architecture of the RS485 IP network.

From the point of view of card reading technology, development is fast. In recent years, CPU cards will gradually replace IC cards, but it will take time to become mainstream. Biometric technology will be favored by users, especially fingerprints, palms, and facial recognition. In the composed system may also require a variety of reading technology compatibility.

From the linkage technology point of view: put forward high requirements for the linkage, especially with television monitoring, fire alarm, building automation control system linkage. The linkage method is based on the linkage of basic hardware to the development of linkage based on pure software. Especially with the rapid development of IP networks, it highlights that the network provides convenience for software-based linkage, and only software linkage is more suitable for digitization and networking.

From the point of view of the card application: Because of the proximity card-based or biometric-based identification, the access control will inevitably develop toward the single card, and the prospect is "one card, one library, one platform." This trend has gradually been accepted by the market.