Comprehensive factors of access control to be more cautious

The early intelligent access control system was based on an all-in-one machine, ie, a card reader and main control board integrated into one. With the development of electronic integration technology and changes in access control market requirements, split-type access control, where controllers and readers are separated, gradually replaces one-piece access control and becomes the market leader. In particular, the use of high-performance ARM-based processors in the design of embedded access control systems has become more and more widely used in recent years, resulting in the rapid development of large-scale, controlled-network access control systems. It can be foreseen that the application of future access control systems will go beyond the control of door switches.
For split-type access control, the number of gates controlled by split-type access controllers currently on the market is mainly single-door, double-door, and four-door, and some manufacturers have even introduced eight- and thirty-two-door controllers to face many types. In practical engineering applications, how do you choose?
In some small access control system projects, the construction unit does not have a clear requirement for the installation of the equipment. The general controller can be directly installed in the ceiling of the door point. With this installation method, when the project provider or user selects the multi-gate controller It is necessary to consider the distance between multiple doors managed by the same controller, and whether the wiring of each door to the controller is convenient or not. At present, most communication systems between access control systems and controllers use Wiegand protocol. In theory, Wiegand signals have a maximum transmission distance of 150 meters. However, in practical engineering applications, the transmission distance is affected by many factors. It is recommended that readers be used to controllers. The distance is within 60 meters. Therefore, if the distance between two doors exceeds 100 meters, consider using a single door controller for each door as much as possible instead of using a two-door controller to manage two doors. Similarly, when selecting a four-door controller, Also consider whether the distance from the four door points to the controller meets the requirements.
Of course, the number of gates that the access controller does not manage is as good as possible. There are also drawbacks in the use of multi-gate controllers. A controller is broken and affects the management of multiple doors. At present, the common practice of most of the eight or more access controllers in the market is that the main controller does not directly drive the front-end equipment, but connects the input/output equipment of each door point through the pre-driver unit module. This way of increasing the number of controller management gates through the sub-control structure increases the complexity of the system. We know that, in general, the system failure rate will increase as the complexity of the system increases.
In recent years, the profit margin of the attendance market is getting lower and lower, and the market capacity continues to expand. The profit margin is getting lower and lower, which means that the inflection point of a market is about to be formed. The market will inevitably need to make structural adjustments. It will substitute new products with more technological content and more market potential. This is the opportunity for investment. . The author believes that in addition to choosing the timing when investing, the key is to choose a good cooperative brand. In addition, the following points should be considered:
1. Choose cooperation brand with development vision. Brand selection must have a vision of development, not only to see the present, but also to see the future;
2. Only by establishing a win-win basis among the manufacturers, distributors, and users can the market be able to get a healthy development and the cooperation between the two parties can last long. If only one's own interests are taken into consideration, it is inevitable that the three monks have no water to drink. Therefore, it is necessary to find out what the two parties have in common: the greater the amount, the greater the profits that both parties can obtain. To quickly expand the time and attendance market, two conditions must be met: manufacturers and distributors share the responsibility for product promotion, especially the initial market launch, manufacturers should increase publicity at the end-user level; correct product positioning;
3, dealers should accurately position themselves in the channel. In the process of product promotion, it is often encountered that dealers only sell and let manufacturers do services. In fact, as the market grows bigger and bigger, manufacturers must inevitably move toward industrialization. They can only focus on product development and brand promotion. Terminal-oriented services are made by distributors that have geographic and personal advantages in service. , it can form complementary advantages of manufacturers and distributors;
The attendance market is going through a period of transition from rapid growth to maturity, and the market will inevitably breed new development opportunities. However, this opportunity will only be provided to the forward-looking, prepared and well-recognized market represented by Probach. Road biometric companies. Based on the above points, the close cooperation between Probak and attendance agents will bring new changes to the attendance market and achieve a win-win situation for enterprises, agents, users, and markets.
Therefore, although the controller that chooses more doors has a cost advantage in the one-time investment of the project, it does not disparate the follow-up maintenance and other issues. For the balance between cost control and practicality, if the project requires the use of multi-gate controllers, 2- or 4-door controllers are a better choice. Unless there are special requirements, try to avoid selecting access controllers with more than 8 doors.
In addition, it should be noted that some customers use two card readers and receive a single-door controller for cost-saving access to the two-way control of the credit card. After the system is put into use, it is found that the management requirements of the access control record are not met. In fact, most projects require two-way card entry and exit records to be separated. This requires the use of a two-door controller to manage one door, and the system must be able to support bi-directional door-point management functions that can automatically distinguish door-to-door or door-opening records. . Take Kesong ACM68 series access controller as an example, the two-door controller can manage two doors for one-way card swiping, or set up to manage one door in bi-directional control mode; the four-door controller can manage four doors for one-way swiping, or After the two-way control mode is set to manage two doors and the host computer software is set to the bi-directional control mode, the type of the door entrance or exit event of the user can be distinguished.