As a whole, the development speed is fast, the quality is improved, the scale of the company is expanding, and the market competitiveness is increasing. However, it is only a big producing country, not a world power. There is still a big gap compared with the international advanced level. The overall hardware and lock planning principles of the building are to discuss the application of electric lock products in intelligent buildings, including product classification, selection requirements, precautions for use , etc. Reasonably select the electric lock and hardware configuration scheme of intelligent buildings. In recent years, The intelligent building has become an indispensable project for the renovation of homes and public buildings in various enterprises, institutions and villas, and has been gradually promoted. Generally speaking, the focus of locks in building intelligence lies in the electric lock products that are matched with the intercom and access control systems. The production, application and development of security systems such as intercom, access control and electric locks are only a few decades old, but the overall development of construction hardware locks has a history of more than a thousand years. The development of more modern door control hardware products in the West also has For hundreds of years of history, and in the overall hardware and lock investment of buildings, the proportion of electric locks is actually a very small part. In this paper, I would like to discuss the electric lock products with the principles of the overall hardware and locks of buildings. Application in intelligent buildings. Electric lock product classification At present, the security lock products on the market generally have several types of electric locks (cathode locks), electric locks (anode locks), magnetic locks and handle electric locks, which are respectively introduced below. Electric lock The application of the electric lock must be used in conjunction with the mechanical lock body. This product replaces the lock device of the original mechanical lock, and the electronic control part is responsible for opening and closing the lock baffle. The current product series is mainly subdivided into European standard or The American standard is used in conjunction with different mechanical locks and power-off or power-on to meet fire safety needs. This kind of lock is mainly applied to a single wooden door or a metal door with a frame around it. The mechanical lock body can ensure beautiful and practical under the control of cost. Electric lock The electric plug lock refers to an electric lock in which the lock body is installed at a fixed position and relies on the action of the electric control system to drive the lock pin to control the switch of the door. The electric lock is also divided into a series of power-off and power-on, and the application range is mainly It is a double door, a double open door, a glass door, etc. without a fixed position of the door frame. Magnetic lock The magnetic lock refers to a kind of door control device which is manufactured by the principle of electromagnetic induction. The system controls the magnetic field by supplying and de-energizing to force the steel sheet corresponding to the magnetic lock to achieve the purpose of opening and closing the door. This type of lock can be applied to all kinds of access doors in one-way passage. It can be widely used indoors and outdoors, but the lock body is not beautiful enough. It is not recommended for property safety protection in important places. Handle electric lock This kind of electric lock product is a popular product in recent years. It draws on the principle of hotel lock, and combines the characteristics of safety, beauty, convenience and practicality to provide a better choice for high-end customers. The product is suitable for single-single-open wooden doors with relatively high decoration requirements. Because it is an electromechanical integrated lock, the transition of the control signal line between the door and the door frame must be considered during the installation process. Electric lock use precautions As an electric lock product for intelligent building access control and intercom, it must be closely matched with the performance, requirements and characteristics of the access control and intercom system during use. Generally, the following points must be noted. Wiring Many electric locks have many other connections besides the power interface line. Among them, the lock status line and the door status line should be specially concerned. The lock status connection can provide the lock information of the lock, and can be linked with the digital input interface of the access control system. View the closed state of the lock in real time. The door state connection is a good alternative to the problem of separately installing the door magnet, which reduces the installation cost, improves the system use efficiency, and better guarantees the aesthetic appearance of the building decoration. Open and close delay settings Many electric locks have a special delay setting jumper or dialing device, which can set the delay time of the electric lock. However, most access control and intercom systems also have a delay setting function, so it must be considered when installing the electric lock. Delay setting. Electric lock power supply There are many types of electric locks, there will be some differences in current and voltage, and the number of electric locks managed by each access controller will be more. At present, many low-end and mid-range access control products will directly supply power to the electric lock. I believe that this is not the case. It is recommended that the power supply configuration of the access controller is often configured according to the load of the controller itself. If the electric lock is driven, the controller may be unstable or even damaged. Secondly, the distance between the electric lock and the access controller is also With uncertainty, long-distance power supply may also cause the electric lock to work abnormally. Third, the frequent opening and closing of the electric lock during use may cause instability of the current and voltage. If it is directly powered by the controller, this current Fluctuations in voltage can cause damage to the controller, which is unforgivable regardless of the value of the equipment or the level of security. It is recommended that regardless of the size of the system, the electric lock power supply must be configured separately, and regardless of the control mode of the access control and intercom system, it is recommended to use the relay isolation mode for the electric lock opening and closing control to ensure the maximum between the electric lock current and the control host current. Isolated. ECO application At present, one of the more popular system inspection indicators is ECO, which is the so-called environmental protection, energy saving, and ecological application. The power consumption of a single electric lock may be very inconspicuous in the eyes of users and engineering companies, but in the face of large-scale intelligent buildings. For hundreds or even thousands of electric lock applications, the power consumption of the electric lock is not a small number. Therefore, in the electric lock application of the building intelligent system, the ECO index can not be ignored from the perspective of operating cost and environmental protection. . Intelligent building electric lock selection requirements In addition to the monitoring, access control, alarm and other technical defense facilities that are commonly used at present, intelligent building security must also combine human defense and physical defense. The key to civil air defense is to rely on a security team with excellent quality and a sound management system. Anti-requirement of durable perimeter facilities, gated facilities, etc. Relative to the electric lock, from the point of view of the fixed assets investment of the building, the preliminary budget and post-maintenance of the electric lock hardware products must also be fully considered; from the consideration of building fire protection design, it must be ensured that the selected products can be guaranteed to the maximum extent in an emergency. The rapid evacuation of personnel; from the perspective of the decoration of the building, the aesthetics of the product or the application of the product that is subject to the overall style of the building is also very important; from the perspective of different functional applications of the intelligent building, the functional requirements for the building hardware or electric lock are also different. of. Based on this, when selecting the building intelligent electric lock product, it is necessary to consider the structure, function, style, fire protection, security level and other factors of the construction project, and select the most suitable product solution to recommend to the owner. On the whole, intelligent public buildings have the following requirements in the selection of electric locks and hardware products: Emergency escape. To ensure the safety of all personnel in the building and ensure that they can escape in the shortest time in any emergency, it is necessary to fully consider the need to be able to open in emergency situations when selecting power distribution locks and hardware products. All escape doors, which are embodied in the selection of electric locks, are generally provided with a type of power-off type lock at these specific positions; Fire prevention. Fire prevention and escape are interrelated. When a fire occurs, priority should be given to ensuring the escape of personnel in the intelligent building. Secondly, the fire door and the fire shutter facility should be safely and securely isolated from the fire to ensure the safety of personnel. Electric locks and hardware products must be compatible with the fire rating of the building; Internal management functions. Different functional partitions within the system will have different management rights. In the aspect of electric lock and hardware matching, it must be combined with the internal management of intelligent buildings, and the facilities and equipment should be properly installed in the required places to ensure the isolation of personnel in different functional zones; System durability. The service life of a building with an intelligent building is currently more than 100 years old, but it is often seen that many electric locks or hardware products in building buildings are facing a lot of repair or replacement after several years of use, so the process of selecting related products In the middle, we cannot simply pursue low prices, but we must comprehensively judge and choose the most cost-effective products; Channel control. Different channels are designed in intelligent buildings, which are standardized from different functions such as function and flow. When designing electric locks and hardware products, these design concepts must be followed to fully meet the design requirements and meet the logic of channel flow control. ; It is convenient for people with disabilities. At present, the state has relevant regulations on barrier-free access. It is reflected in the construction lock hardware to ensure that people with disabilities can open every access door with any part of the body to protect their passage and personal safety. Carefully evaluate the product and make the most user-friendly design; The aesthetic requirements, each architect will choose a certain architectural style when designing, this style will be reflected in all aspects of the building, so in the selection of distribution locks and hardware products, we must fully understand and respect the designer's The ideas and styles, the products used to meet the overall aesthetic needs of the building. Lock standard introduction In the process of electric lock and hardware selection, different standards are often encountered. At present, the commonly used standards are European standard and American standard. The current standards in the world of locks and hardware mainly include the following: · British Standard BS (BS5872-1982) is the oldest; · European standard EN (PREN12529) is all-encompassing; · The American standard ANSI (ANSI 156.2-1999) is the most complete; · Australian Standard AS (AS4145.2-1993) is the most stringent “trade barrierâ€; · Japanese standard JIS (JISA1510-1995) is more relaxed. The one-way comparison for the European standard and the American standard is as follows. 1. American National Standard: ANSI 156.4, American Underwriters Laboratories UL10C. · The number of standard opening times: ≥ 2 million times; · The number of secondary standards open: ≥ 1 million times; · The number of three levels of standard opening: ≥ 500,000 times. 2, European standard CE: EN1154 (performance test) and EN1634 (fire test), open times indicator: ≥ 500,000 times. It can be seen from the above comparison that the durability parameters of American standard products are generally higher than those of European standard products, which is also the reason why the American standard electric locks or hardware products are relatively expensive on the market. For a large commercial building, the number of doors may be thousands or even thousands. How to choose the best cost-effective electric lock and hardware solution for different parts and different use requirements to ensure a long service life and the lowest maintenance in the future is a very complicated and cumbersome work. The best overall hardware lock solution should be a unit of convenience, safety and durability. Selection principle In summary, when selecting intelligent building electrical locks and hardware solutions, it is recommended to follow the following basic selection principles: The location used and its importance should be considered for use in gates, hall doors, rooms, bathrooms or passages in order to select the product that suits the desired function; The environment and conditions used must consider the advantages and disadvantages of the use environment, such as the frequency of use, whether it is a fire door, the structure of the door, weight, thickness, etc. Consider the situation of people who are frequently used and consider whether there are elderly people, children or people with disabilities; Considering the coordination with the decorative environment, it should be considered that the coordination and matching with the decorative environment should be consistent; Laser Cut Sheet,Laser Thin Kerf Saw Blade,Laser Cut Saw Blades,Diamond Laser Saw Hubei Chengze Diamod Products Co., Ltd. , https://www.ryomaltools.com
Preliminary Study on Electric Lock and Hardware Application of Building Intelligent System