The importance of the access controller for the entire access control system is not exhaustive. The access controller is like the heart of a person and the soul of the system. Generally speaking, if the appropriate access controller is selected, it can not only save costs, but also extend the entire system. The service life is long, and the later maintenance will also be quite simple. The engineering business is happy, the users are happy, and the manufacturers are happy.
I have referenced a lot of information on how to choose the access controller on the Internet, and I was surprised to find that most of them are like one after another. Some so-called standards two or three years ago. After several years of technological innovation and product upgrades, now It is a necessary requirement for entry. The author has been working in the access control industry for many years and knows that there are many places that need to be considered comprehensively when selecting an access control controller, such as selecting a BMW Liangma. The following is a brief list of a few steps. Colleagues, please correct me.
Hope: The appearance of the controller with stable performance can also be seen. Now many so-called brand controllers like to use the shell frame to be strict, leaving only a few interfaces outside. Some customers are fascinated by the beautiful appearance and the bragging of the sales staff, but they do not know. To really ensure the stability of the controller, you must work hard on the board. First of all, weigh the weight of the board, I believe that anyone who knows this line can know the mystery, the number of PCB (circuit board) layers must be four or more layers, in order to maximize the resistance from various sources Interference, I believe that people who have used security equipment for a long time have had the experience of being confused by the unclear glitches. The importance of eliminating the possibility of various interferences to the greatest extent cannot be ignored. The second is the main chip. Generally speaking, to meet the current requirements of high efficiency and fast, 32-bit microcontrollers such as the ARM series belong to the mainstream configuration. Again, look at the various components above. What relay capacity, detonator and port protection components are all indispensable, and they must also reflect high performance. Although access controllers and the like are mostly used in civil facilities, But the standards must be industrial grade. Many manufacturers' products look very delicate, and they also claim to be fine craftsmanship. I do n’t know that industrial grade standards are so large that the chip is small to the terminal. They must withstand the harsh tests of various extreme conditions. Many manufacturers only say that one or two components or functions have reached the industrial standard, and they say that their product is an industrial-level standard, which will only bring laughs from insiders.
Smell: There is an old saying, "The wine is not afraid of deep alleys." Really good and cheap products will definitely get a good reputation. Please note that I am not advocating that there must be a famous brand because the brand is also flashy. The key is to look at the negative reactions in the market. No matter what brand has as many negative reactions as positive reactions, or even more negative reactions than positive advertisements, it is still prudent to choose carefully.
Q: This is mainly to remind buyers that they must first understand their needs and the actual functions of the products. Although some company products have existed in the market for a relatively long time, their own development capabilities are limited, a few simple functions, several After several years of selling like a day, customers can't meet new needs, and have a reputation as an old brand. Not to mention the special requirements of special occasions, the basic functions of an access controller can be summarized as follows: 1. No less than 12 kinds of door opening methods, such as normally open, normally closed, password, card + password, first card, multi Card, remote control, etc. 2. Regional anti-following, anti-submarine back, regional number control, etc. 3. At least 10,000 cardholders and credit card records. 4. Support any grouping and division of cardholders, and the same cardholder belongs to multiple departments. 5. Powerful schedule management function, support any number of schedule groups and holidays, any number of time groups, and set any time period of the day. 6. Various alarms, and set whether to enable separately, such as door opening timeout, illegal intrusion, coercive entry, effective swipe card did not enter, anti-demolition, anti-prying, etc. 7. Event records and alarm records are actively uploaded in real time. 8. Support multi-door interlocking of the system and support arbitrary grouping of areas. 9. The power-off data is kept for more than ten years. 10. Can support all kinds of wiegand and RS485 card reader, wiegand interface provides sound and light response output. 11. Watchdog anti-crash, anti-thunder, anti-static, anti-interference, anti-disassembly and anti-prying, etc. At the same time, it is also necessary to understand the R & D strength of the manufacturer. This can specifically put forward some personalized needs to see the response ability of the supplier.
Cut: It ’s better to see it than to hear it, it ’s better to try it than to ask. The so-called "cut" is to actually operate the function of the access controller. Access controller manufacturers generally provide demo boxes for customers to try. Readers should not ignore the demo box. The functions must be tirelessly tested for the most thorough functions, especially the basic functions to be satisfied in the project. Then make sure that the model and brand of each product in the demo box are the products selected in your project that need to be installed, because for the entire access control system, there are certain compatibility between the components, different brands have Functional differences can occur. As mentioned on the training ground, I usually sweat more and bleed less in wartime. I believe that some engineering companies have eaten and installed things, but this is also a problem. Please control and confirm beforehand. Do n’t be afraid of trouble. In order to ensure that there are no problems in the actual installation, there are fewer problems.
Another point to add is that the history cycle of the access control industry and the entire security industry is not long, so it does not matter whether the old and new players are good or bad. On the contrary, many rising stars are leading in technology and response speed because they can gather the directors of the public. Status, such as the Mais series of access control launched by Shenzhen Zhonglian Innovation Company, which is located in the access control capital, the author has conducted in-depth research on the performance of its products, which can be regarded as a more prominent example of mainstream access control brands. No advertising, just for reference, you can try it.
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