HC Security Network News in digital technology rapid development of network technology today, access control technology has been rapid development. The access control system has already surpassed the simple doorway and key management, and has gradually developed into a complete access management system. It plays a huge role in the administrative work of work environment security and personnel attendance management. In the project, the building access control video intercom system generally includes visual intercom type and networked alarm intelligent type, which can meet the different needs of different occasions such as single households, villas, ordinary houses, high-rise buildings and social residential quarters. â—‡access controller The core part of the access control system is equivalent to the CPU of the computer. It is responsible for the processing and storage of the input and output information of the entire system, control and so on. â—‡ card reader (identifier) A device that reads data (biometric information) from a card. â—‡Electric lock The actuator that locks the door in the access control system. The user should select different locks according to the materials of the door, the requirements for going out, etc. There are mainly the following types: (1) Electromagnetic lock: After the electromagnetic lock is cut off, the door is opened and meets the fire protection requirements. A variety of mounting brackets are available for customers to use. The lock is suitable for one-way wooden doors, glass doors, fire doors, and split electric doors. (2) Anode lock: The anode lock is a power-off type, which meets the fire protection requirements. It is mounted on the upper part of the door frame. Unlike the electromagnetic lock, the anode lock is suitable for two-way wooden doors, glass doors, fire doors, and it has a door magnetic detector that can detect the safety status of the door at any time. (3) Cathode lock: The general cathode lock is of the energized open type. Suitable for one-way wooden doors. Install the cathode lock must be equipped with an ups power supply. Because the lock is locked when the power is off. â—‡ card The key to open the door. The cardholder's personal photo can be printed on the card, and the card and chest card are combined into one. â—‡Other equipment Exit button: Press the device that opens the door, which is suitable for the case where there is no restriction on the exit. Door magnet: used to detect the safety/switching status of the door. Power supply: The power supply equipment of the whole system is divided into two types: ordinary and backup type (with battery). In recent years, with the development of proximity card technology and biometric technology, the access control system has undergone a leap-forward development. It has entered a mature stage, and there have been induction card-type access control systems, fingerprint access control systems, iris access control systems, and facial recognition access control systems. The system of various technologies such as the out-of-order keyboard access control system has their own specialties in terms of security, convenience, and manageability, and the application fields of the access control system are also wider and wider. And the problems that come with it are urgently needed to solve the upgrade. 1. The quality of the products is mixed, the brands are mixed, and the imitation of the cottage is endless. The more developed the intercom industry, more and more people have joined the intercom security industry. Many manufacturers start assembling intercom security products from simple manpower and machine tools. The low cost and low price are not high, but they are not formal industrial structures. The intelligent building intercom system is a highly professional product, which requires a large input cost and a long recycling cycle. It has high requirements for technology, experience and maintenance. However, a large number of low-cost technology companies are influx, and the industry hides huge risks: First, market risks, the market will inevitably have advantages and disadvantages, and a large number of production enterprises with professional standards are facing elimination, which leads to product after-sales service can not keep up; Still a user. The second is social risk. Low-cost quality intercom products companies can not only provide qualified building intercom system products for cities and residents, but may become a large number of safety hazard systems. In the same way, the products of different manufacturers that have passed the same testing institution are tested. In actual use, there are still great differences in performance. The qualified test only means that the product can enter the market, and it does not mean that the product will not have quality problems. And the product to be inspected and the actual mass-produced product itself will also be different; at the same time, different batches of products will also have differences in the use of components, resulting in the quality of the finished product. 2. Improper system construction design and installation, resulting in poor system performance The main reasons for analyzing engineering problems on the intelligent building intercom system are: improper construction design. First, the intelligent building intercom system door machine is designed and installed in an open place, and no waterproof or moisture-proof treatment is required, causing equipment water to cause failure; The second is to design the door machine on the door panel. Because the door panel is switched, it will bring vibration to the door machine to cause poor contact failure. The third is to install the networked equipment outside and cause the waterproof treatment and lightning protection. Failure; the fourth is that the line construction is not good, causing one household failure, the entire building system is shut down; the fifth is to reduce the installation power and load power shortage, resulting in unstable power supply, image distortion and jitter; sixth is not using the original power supply Causes unstable operation; Seventh, improper design of door locks, resulting in door door failure caused by deformation of door panels or poor quality of electric locks. The above-mentioned various faults, users and property management companies can not grasp this link, can only be attributed to the problem of intelligent building intercom products and poor construction quality. In addition, the construction process is rough: for example, there is no need for proper stainless steel screws and the wires are not welded, and they are not covered with insulating heat-shrinkable tubes. In particular, after the copper wires are twisted together, only the electric tape is entangled. This is not the case. This is the main cause of loose wiring, broken wires or poor contact, spark interference and wiring oxidation. In addition, due to natural factors; equipment is not clean and maintenance, no routine inspection, corrosion caused by dust, insects, rat cockroaches, rat urine, etc. and non-human failure. For example, some small tigers crawl into the floor platform, power supply, extension and mainframe during the winter. Because such equipment will generate tiny heat during work, the insects can warm the winter, causing short circuit of the circuit board and causing equipment failure. 3. System use error and frequency of use is too high Generally speaking, the intelligent building intercom system does not stop running for 24 hours, especially the commercial building intercom system is used frequently and is more prone to failure; on the other hand, in the wrong operation after the installation of the system, If the wrong operation is improper, or the user arbitrarily modifies the system configuration, causing illegal operations or non-maintenance personnel to log in to the system for operation, these problems may occur in the system. 4. The construction of transmission lines is different. Intelligent building intercom products, including mainframes, extensions, floor switches, networked switches, etc., are the key to the core technology and quality system stability of the products. The transmission part of the system's wire and wiring is the absolute key to the system's pros and cons. At present, most of the building intercom products adopt the traditional video line plus signal line method. Not only the wire material is expensive, but also the construction is troublesome. It is easily interfered by environmental factors during the transmission process, which affects the stability of the system. The network is the core of the entire digital building intercom system. The stability of network digital networking performance is the biggest demand for the stability of building intercom system. Especially in the construction of large-scale buildings, the core technology of networking is very important to the stability of the entire intelligent building intercom system. 5. Failure to comply with the required project acceptance Even after passing the acceptance test, the intelligent building intercom is generally stable after the new system has just been installed and debugged. Since it has not yet undergone the test of harsh environment, it is difficult to find the hidden problems in the construction, especially the wiring project. In an outdoor environment, after the system is frequently used daily by wind, rain, sun baptism and intelligent building intercom system, the problem will gradually be exposed. What are the application requirements for the detailed building access control system in front of the problem? â—‡ reliability The access control system has the main purpose of preventing loss and preventing crime, so it must have high reliability. An access control system may not have an alarm during most of its operation, so there is no need for an alarm. The probability of an alarm requiring an alarm is generally small, but if the alarm system fails within this minimum probability, It often means the arrival of disaster. Therefore, the access control security system must implement reliability design (redundancy design) and reliability management at all stages of design, construction and use to ensure high reliability of products and systems. â—‡authority certification In addition, in the system design, equipment selection, commissioning, installation and other aspects are strictly implemented the national or industry-related standards, as well as the public security department's requirements for security technology prevention, the product must undergo a number of authoritative certification, and has many typical The user has been running normally for many years. â—‡Security Access control and security systems are used to protect people and property, so the system itself must be safe. The high security mentioned here refers to the natural or quasi-natural nature of the product or system. It should ensure the safety of equipment and system operation and the safety of the operator. For example, the equipment and the system itself must be able to prevent high temperature and low temperature. Warm, smog, mold, rain, and can prevent radiation, anti-electromagnetic interference (electromagnetic compatibility), anti-shock, anti-collision, anti-drop, etc., equipment and system operation safety also includes fire prevention, lightning protection, explosion-proof, Protection against electric shock, etc.; on the other hand, access control and security systems should also have the function of preventing human damage, such as: a protective housing with anti-destruction, as well as tamper alarm, short circuit and open circuit. Functionality With the continuous improvement of various requirements of the access control system, the application range of the access control system is more and more extensive. The application of the access control system is not limited to a single entrance and exit control, but it is also required to be applied not only to the access control, attendance management, security alarm, parking lot control, elevator control, building automation, etc. of intelligent buildings or intelligent communities. A variety of control functions such as linkage control with other systems. Editor in charge: Wang Xun Fiberglass Pool Led Lighting,Underground Led Pool Lights,Waterproof Fiberglass Led Lights,Underground Swimming Pool Lights Guangzhou Qshine Pool Lights Manufacture Co., Ltd , https://www.qshinepoollight.com