When you mention the access control system, what do you think of in your mind is the card swiping into the community, or the smart fingerprints for attendance, or the high-tech eyeball voice recognition access control system in the movie?
With the continuous improvement of various requirements of the access control system, the application function of the access control system is not limited to a single entrance and exit control, and it is required to be applied not only to the access control, attendance management, security of intelligent buildings or intelligent communities. Alarm, parking control, elevator control, building automation, etc., can also be linked to other systems and other control functions. The 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 the administrative work of work environment security, personnel attendance management.
The following small series makes a summary of the use of the access control system and the purchase of common sense, so that everyone has an understanding of the access control system.
1, choose a supplier
Q: Who buys the access control system? To the manufacturer, agent or contractor
A: Many consumers will have a misunderstanding. They feel that they will buy directly with the manufacturer, the price will be cheaper, and the after-sales service will be guaranteed. In fact, it is not entirely true.
Really powerful manufacturers generally do not develop and produce, and directly sell products to consumers. In particular, access control products are not a daily necessities and require certain techniques for design, construction and maintenance. If manufacturers directly sell products to consumers, they will touch the interests of agents and engineering companies. Without the strong support and cooperation of agents and engineering companies, manufacturers have no broad development prospects. The human resources of the manufacturers are generally equipped in development, production, technical support, and sales. Generally, it will not be equipped with a lot of manpower and material resources in engineering construction and on-site service.
To some extent, the service level of agents and contractors in engineering will be higher than that of manufacturers. The price may not be lower than the price of agents and contractors, because manufacturers must protect the interests of dealers and contractors, so you often see the price of mobile phone stores is higher than the price of some vendors. The same reason.
In addition, there is another advantage to purchase with agents and engineering companies. If one day the agent or the engineering company has problems and cannot continue to serve, you can also find the manufacturer and continue to provide services. This kind of after-sales service has two guarantees. On the contrary, some small manufacturers, for the immediate benefit, sell products, do engineering, and sacrifice the interests of agents and contractors to cooperate with you, it is very dangerous. He is likely to be small and will be eliminated by market competition. Therefore, the author believes that consumers are best to purchase products from the designated agents and engineering companies, but they can consult technical questions.
2, the number of users
Q: Is there a limit on the number of users or the number of users?
This parameter is convenient for our engineers to help you develop the access control plan and the future use plan. The general access control controller has a limit on the number of people. That is, the capacity of the card
3. Select product type
Q: Is it a stand-alone access control machine or a networked access control?
A: The so-called independent access control machine means that you do not need to network with the computer and set permissions. You can design the access rights of the registration card through the main card sub-card or the infrared remote control or password keyboard.
The advantage is that the wiring is convenient to construct and the price is cheap. The disadvantage is that there is no personalized access management, there is no query for entry and exit records, only the basic functions of access control. When the door is long, the settings are complicated and tired. Security is weak. The networked access control system manages all the doors through the computer, and sets powerful access control functions and permissions. It can monitor the door's entry and exit in real time and query the entry and exit records of all doors. The more doors, the easier the settings and the easier the management. High security.
The downside is that the price is slightly higher than the stand-alone access control machine. Why is the stand-alone access control machine less secure? Because the card reader and control part of the stand-alone access control machine are integrated, if it is installed outside the door, it will be opened and shorted, and the door will open. Although an external card reader can be connected, the main body is installed in the door, and the external card reader is installed outside the door, which is costly. But still can only prevent gentlemen, can not prevent villains. If there is no way for the thief. If the networked access control system can solve these problems perfectly. In addition, the networked access control system also has the basic attendance function, which can save the money to buy the attendance punch card machine, and the attendance record is more fair and objective, and the statistical speed is scientific and fast.
Therefore, if your company considers cost, it only needs a simple access control function, no need for personalized access management functions, and there are not many gates to be installed, and no attendance function is required. The security requirements are not high. Suitable for independent access control systems. If you want to use a true access control system, please choose a networked access control system. Moreover, the networked access control system has better expansion, and it is possible to go up several doors first, and feel that it is easy to use and then expand.
4, choose product features
Q: Do you need an LCD access control system?
A: The card reader on the access control system has a liquid crystal, which is not an advanced logo. There are two advantages to having a liquid crystal. One can display the card number of the card reader, and the time of the card can be displayed. However, the access control system is a durable product that requires long-term use, but the liquid crystal is not a durable product. As we all know, the liquid crystal has a long service life and is relatively fragile, and cannot withstand long-term exposure, moisture, static electricity and the like. Damage to the liquid crystal can also cause damage to the card reader circuit, causing the card reader to malfunction, and the person cannot swipe the card. Therefore, imported card readers, such as Motorola HID, do not have a liquid crystal display.
You may feel that when I attendance, I can know that time is in line with the requirements of humanity, and in fact, it will bring another bad side. For example, if your employee finds out that he is late, he quickly finds his leader and signs a special order. This will lose the notarization of attendance. What is the use of unfair and untrue attendance results? Therefore, the author believes that you must ensure that the long-term stability of the access control system is best not to buy a card reader with LCD for a fancy function.
5, on the power selection
Q: What should I do if I lose power?
Answer: The normal access control system power supply uses the ordinary linear power supply or the switching power supply to supply power to the whole system. In this case, when the power is suddenly turned off, the access control will be invalid. Generally, two kinds of schemes are adopted. First, the rechargeable power supply is prepared in the system. Second, the system power supply is given by the unit's UPS (uninterruptible power supply), the purpose is to ensure the normal operation of the system for a period of time after a sudden power failure.
6, choose the access card
Q: How do users choose the type of card?
A: The most used card types and formats for the access control system are: EM (ID read-only) card, Mifare one (referred to as M1 readable and writable) card, TM card, logic card, etc.
EM card features: market price of 1 yuan to 2 yuan, can only read, can not write data, long card reading distance, suitable for access control attendance parking system and other systems, not suitable for non-fixed consumption systems.
M1 card features: market price of about 3 yuan, readable and writable, short sensing distance, suitable for non-fixed consumption systems, not suitable for parking system, suitable for access control attendance.
TM card features: market price 10 to 30 yuan, readable and writable, contact type. Waterproof, shockproof, anti-corrosive, small size, low energy consumption, stainless steel casing, extremely durable, suitable for industrial and mining enterprises or cold regions in the north.
Card type and card reader type have a corresponding relationship, please note. If you have purchased an attendance system or a consumer system before, it is best to continue to use the original card type, which is the lowest cost. Otherwise, there will be problems with the upgrade and expansion of the product.
7, card selection
Q: Is it a "one card" or a "software"?
A: The so-called "one card" is access control, attendance, consumption, and even the parking lot are managed by the same card. The cards are registered and managed in different software systems. The so-called "one soft pass" is all the management functions of access control, attendance, consumption and parking in the same software. The card can be registered once in the software.
The so-called "specialized in the industry", the company that does a good job in the access control system, may not be doing well, and the parking lot is doing well. By the same token, companies that do well in consumer machines may not do well in the door. Do everything, often do nothing.
The card industry is still in the initial stage of development in China. There are no large and mature enterprises, and all projects can be done best. Some companies have seen the development prospects of “one soft pass + one cardâ€, some products are made by themselves, and some products are introduced through OEM OEM, and they all claim to be their own. This mode has some truth. However, once there is a problem with their cooperation model, or if the introduced product has quality problems and design problems, consumers can not obtain sustainable after-sales service and quality assurance, and there will be objective problems such as shirking responsibility or unable to continue to upgrade.
Therefore, I still recommend that you buy access control systems and software from professional access control manufacturers, purchase consumer machines and management software from consumer system manufacturers, and purchase parking lot equipment and software from professional manufacturers of parking system. Everyone agrees to use the same format. card.
If your attendance is not complicated, you only need to buy the access control software, because the general access control software comes with a simple and practical attendance function (normal shift). If your attendance requirements are complex, such as factory attendance, involving multiple shifts, and shifting through three shifts, it is recommended that you purchase the attendance machine separately from the attendance equipment company.
Some attendance equipment manufacturers, adding a relay to the attendance machine, claim to have access control. The author thinks it is not appropriate. Because of the functional requirements of the access control system and the attendance system, the inspection standards for products are different. The access control system focuses on product stability and safety.
The attendance system focuses on the strength of the attendance function, and the requirements for stability and anti-interference are not high, because if the attendance machine crashes or garbled, you can easily perform a power-off reset. The access control system requires the system to work for a long time without crashing. If a person is shut out of the door, it is impossible to reset the power failure. Frequent power-off reset will also add a lot of trouble to your use. In addition, the attendance machine integrates the control circuit into the attendance machine, and the attendance machine is externally located outside the door. It is easy to open the door illegally by short-circuiting, and there is a hidden danger in safety.
8, choose the place of origin
Q: Is it an imported access control system or a domestic access control system?
A: The author believes that you should buy better products in China. Access control products have been introduced to China from abroad for 10 years, and China's own design capabilities and application experience have matured. Foreign products are relatively mature, but may not be suitable for China's national conditions and usage habits. The products are stable but the advanced nature may not be as good as domestic products, because the design starting point of domestic products is high. For example, China's securities trading system is more advanced than the securities trading system of developed capitalist countries. Imported products are 4 to 10 times the price of domestically-made access control because of the cost of labor, such as customs production costs, and the price is not good. There are many domestic products, a brand of imported goods, trying to sell a good price, the certificate of packaging certificate inspection report is done in a decent manner, you must not do big heads, spend money, buy a bad product. Therefore, I suggest that you buy domestic products, the service will be better, and the price will be cheaper. But the best products and companies have a history of more than 3 years, preferably a manufacturer of more than 5 years of history. Why? Because the product of the access control has a special feature, it is not difficult to make it. It is difficult to do stability. An automation university student can spend 3 months to make it, but this product is definitely not used. I don't know what will happen in a day. Why is it better to have a history of 5 years? Because the products that were used for access control five years ago and the products that were not doing well were almost eliminated by the market.
9, product testing report
Q: Do you need to see the product test report before purchasing? Is the test report as much as possible?
A: The author believes that the test report should still be good. At least it shows that the company still has a certain strength. I think that the ISO9001 certificate and the product quality supervision bureau report must be at least. In addition, the Ministry of Public Security's test report is also authoritative. As for the 3C certification, there is no mandatory certification for the access control industry. Of course, don't blindly look at the quality of a product through a test report. Because the inspection department is only responsible for the products to be inspected, they are not responsible for the products they produce. Many inspection reports can solve the problem by spending money. This is well known. Don't be superstitious about test reports. Many bad manufacturers falsify their test reports by modifying copies of other people's reports. There is a trick to identify this point. If you go to the manufacturer's website to see the test report page, the guilty manufacturer may not dare to clear the big picture.
Concerned about surprises
Label: Knowledge summary: access control system use, purchase common sense
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