The safety of the entrance guard control factors have?

Affect the safety of entrance guard control unit for a lot, usually performed under the following respects. 1. The distribution of the control unit: the control unit must be placed in a special elv concentrated within or between equipment management, between the control unit and the card reader has the ability of remote signal transmission, but cannot use can carry only a few meters distance Wiegand wiggins agreement. 2. Entrance guard controller of power supply must be with UPS system, in the external power supply can't provide, continue to work for a few hours, at least can make entrance guard controller to prevent someone cut off power supply leading to failure of entrance guard. 3. Access control in the power supply is very important, to provide necessary components and stable working voltage is the premise, has the good ability to filter and regulator. In addition to strong anti-interference ability, including high frequency induction signal, lightning, etc. 4. Entrance guard controller chassis must have certain prevention to hit, pry proof, explosion-proof, fire prevention, anti-corrosion ability, to prevent the occurrence of all kinds of damage. 5. Entrance guard control unit must have the ability to all kinds of real-time alarm, such as power supply, UPS and so on all sorts of equipment fault tips, warning message case was opened, and communications or line fault alarm reporting capabilities. 6. Entrance guard control unit can not directly use on-off signal, entrance guard system will only many signals to switch ON/OFF model output, such as door magnetic signals and push button, etc. , so it's easy to use and destruction of, will be dramatically reduced the safety of the entrance guard system as a whole. 7. Entrance guard control unit of the overall architecture design is very important to design a good entrance guard system will try to avoid using the expansion of the slot type plate, to prevent the oxidation of the long time use and caused by poor contact. 8. Entrance guard control unit of the program design can't completely rely on the computer and software, the computer is very unstable, so well designed all the logical inference in the entrance guard system and the application of various advanced performance, it is important to rely on entrance guard system of hardware control unit to complete. 9. Entrance guard control unit of output is controlled by relay, relay work frequently, if current capacity is too small, will soon destroy the relay. Inductance and resistance is usually large current or reverse diode protected control unit, etc. 10. Electric lock and execution unit contains a variety of electronic locks, three roller turn, car stop and other control equipment, the equipment should have, each electronic lock has its own characteristics, on the safety, cheap and reliability also vary, depending on the actual demand situation to use appropriate electronic locks. 11. Sensor and alarm unit contains a variety of sensors, detectors and buttons, such as equipment, should have certain mechanical damage prevention measures. Well-designed entrance guard system can be reed alarm signals and the push button is encrypted or transformation, such as into a TTL level signal or digital signal. Synchronization, entrance guard system can also monitor the following alarm status: alarm, short circuit, security, open circuit, the request to withdraw from, noise, interference and shielding, equipment circuit, tamper such as state, can prevent the artificial shielding and damage of the switch alarm signal, in order to enhance the safety of the entrance guard system. 12. Entrance guard control unit should be able to support a variety of online communication mode, such as RS232, RS485 or TCP/IP, etc. , in different cases, using a variety of online mode, in order to realize the national and even global system online. Above is entrance guard system on the current product analysis, report to the readers the main part, still hope readers ones advanced correct, the next paragraph, let's examine part of biometric access control management system, especially the fingers/palm vein recognition part of this period are discussed; Four leading biometric characteristic on entrance guard leading biometric fingerprint and hand vein recognition in the series production has its reason, mainly is the four characteristics for the palm vein recognition technology application development, the characteristics of the four application technology lead the palm vein recognition products to entrance guard control lead. We in product tests verify one by one to check these four biometric characteristic parts, the first is near infrared induction method, identification, sharply in distance from the test method of several centimeters or so out of contact finger palm vein login and identification of rapid reaction, is not affected by environmental brightness effect of biometric sensing technology is described in the first shot stability characteristics; Again we also saw the palm vein of biometric content on the manipulation of the interface or human nature and convenience, choose the All on the design of the Screen to make All the touch control can see maneuver on a window, combine the language USES the performance can be suitable for various countries use language this is the second convenience of biometric characteristic; The third is on the hand vein recognition using make a thought; Use of the system may be produced by the back door and stress design of single, double, many people use the login password and card, etc. , synchronous multiple authentication mechanisms and the back door and available around the palm login heterogeneous stress performance, make the safety of the use of more secure characteristics; Finally the fourth big characteristic is the collection of network applications need to make the system on the combination of security and surveillance monitoring more simple and easy, also through such characteristics, can be more and the future telecommunication network into network at home or the fourth communication characteristics of access control management of each function. These features looks be like simple, but only manufacturers strive to build a research process of hard to make the palm vein biometric technology rapidly by leaps. Diverse biological identification application market refers to the hand vein recognition technology because of its uniqueness, permanent, bullied and cheap and acceptance of substantial increase, in addition to the main application in outside door access control can be more widely applied to the automatic machine of plastic control launch control, airport or military zone in and out of control, financial exchequer or deposited securities, medical specific entrance guard management control. In addition, it can be applied in general attendance management, electronic database management, e-commerce and other multiple use. But to participate in the test of the range of products in addition to the above outside more will promote its hand vein recognition system to the residential security access application, in addition to the high-level single-family homes, more borrowing by expanding into the collective mansion entrance guard in addition to save energy or membership member management applications, to break through the confine of the palm vein recognition on the application, to a wider variety of hand vein recognition system has been selected by the user. Finger palm vein biometric development in addition to the above paragraphs infinite product test to verify statements, biometric products with function of modular technology customized products including panel, software and control picture accept customization customers or vendors need to develop, also because through these technical deployment, makes the palm vein, including fingerprint biometric systems have a better future unlimited space for development.