On the plot management and intelligent building systems analysis and development of security

[Paper Keywords] intelligent automated control security system
[Abstract] With the rapid development of intelligent buildings to fly, the effectiveness of security systems Research and development of great importance is attached, security developers are constantly on the security system to optimize Research and development to meet market demand.


Introduction
At present, the rapid development in China Intelligent Building Large-scale commercial buildings, stadiums and other entertainment and leisure facilities, villas, residential quarters, stores, etc., are to take closed-circuit television, intrusion alarm systems, access control and parking management systems, intelligent system installation. Regardless of transactions, or work and leisure, a wide variety of intelligent control devices, has brought to people's lives safe and easy. intelligent building equipment, automatic control Technology from the technical point of view, including construction equipment, automation Technology, security Technology, fire, and linkage . building more intelligent systems focus on the former electrical and communications, the present world, the growing concern for security and defense, security system, with its highly intelligent, highly efficient prevention techniques, crime, criminals evidence of efficacy, a great degree of modus about or want to deter people, thereby reducing the crime rate, personal and property safety of citizens eventually be protected.

Category 1 security system
In the intelligent security Technology, China has many large scale intelligent building security system, leading products are used internationally, and require equipment manufacturers need to use international standards, common interface, to maintain third-party system with excellent compatibility. normal in terms of the intelligent security system, including the three categories.

1.1 Security tight coupling mode
The field of international security Jie mainstream vendors are their own. Third-party vendors, usually for the mainstream market products, expand R & D, all the business logic, are done in an integrated platform, the equipment level, the integration of subsystems. As the to follow, so third-party device manufacturers compared to the understanding and control of equipment in a weak, equipment upgrades and other issues in the relatively backward. and tightly coupled mode security system subsystem lack of independence, coupled with system compatibility is poor, only for those facilities and functions to be smooth, without the user often change places.

1.2 non-open systems
Such systems is the vendor for their own product Research and development, the limit of large, compatibility of small, focused and strong dependence on the hardware. Manufacturers are able to improve device support based on user needs, such as manufacturers to design products, is to with the hardware products factory, without considering the compatibility of other vendors' products, even according to customer request for additional support rate, can not be counted as an open system, its main Application in the device compatibility of its less demanding, the system functions clear, relatively high coverage sites.

1.3 Open Security Systems
Also goes for the third-party Research and development, business logic are different in each subsystem to complete, only high-level business logic to complete system integration platform. This type of security system, subsystem design can play the advantages, and interface and other building integrated intelligent subsystems to each other, a great function. open the largest security system design features are: R & D is not focused on the vendor to complete the basic functions of repetition, its focus is primarily focused on decision-making and interaction between systems. the Application of open systems is extremely common, and very high flexibility, in addition to that is not completely closed the rest are reserved for interface devices leaves room for integration and expansion in accordance with the needs of users. also goes for the current design of intelligent security key development.

2 intelligent security system reflects a comprehensive analysis of
Building intelligent security system common pattern: First, anti-theft alarm mode and the perimeter of the building space for their own preventive and preventive object the system's front end, for a variety of alarm detectors, wired and wireless two transport ways in which cable transmission line using telephone lines for transmission and transmission system terminal for display systems, control systems and communications facilities, can take independent alarm controller, the alarm center can also take control no matter what mode the system to reduce false alarms to the minimum acceptable, but certainly not omitted the system must also install an emergency alarm systems and monitoring center network with 110 police, if robbery and threats to personal security of citizens, the police can be rushed to the scene. Second, closed-circuit surveillance alarm system and its main settlement in the main building in critical areas to start monitoring, real-time video and alarm to play the role of the system front-end for all types of video cameras and alarms, take fiber and coaxial cable in general transmission mode, the system terminal for the display system, recording system and control device, used most independent video and alarm monitoring center console. Closed-circuit monitor alarm system with burglar alarm, intrusion systems, access control, access control systems in series, launched by the central control room, centralized management and control. Independent of the closed-circuit surveillance system, the programming has to be free, manual and automatic screen switching function, and the screen, the need for the camera number, time and address, and date, etc. information system should be installed with an emergency alarm device 110 and the police station, monitoring center network. alarm, the alarm system can start the image and sound examination.

3 Security Systems R & D
Intelligent Security Systems Research, the first step to the system based on hierarchical practice, the system is divided into: the device interface, processing and Application layer.

3.1 device interface layer
Interface layer of the previous devices in general, for the RS232 / RS485 interface, slow, and current research and development of new intelligent use of RJ45 network equipment, most of the protocol. Device interface layer need not affect the original subsystem, under normal operating conditions, open to manufacturers protocol as the standard, to complete, equipment control, and event collection. the interface layer is used, uniform equipment, the basic control interface of each security device has its own interface mode are , and the interface protocol. Links to free download http://www.hi138.com 3.2 processing layer
The role of security equipment processing layer, is used to interface between the upper Application and disposal device interface. And, the transaction layer will come from the collection device interface layer to analyze all the information and processing. Relative to the general large-scale systems, such as intelligent building airports, museums, etc. where many security subsystems are installed, both will receive a number per second of information, here involves the rule base, if the information collected to expand the appropriate collation, analysis, control of personnel can not respond. predefined rule base is and the associated information and new information generated after the match, the rule contains the sequence has occurred and the time difference information and information occurs between the non-relationship, etc. Because the rules library there, so handling information even more quickly, and the result of new information delivery to information even more clearly expressed information, such as security devices, video, mobile, and detection and, to this area wireless mobile sensors are triggered, to is a predefined rule base is the movement of this region has another example, a door down and caused alarm both audio detection alarm is triggered, the door can be predefined is down. security system rule base definition, be to a wealth of security experience is the basis of experience, but the user does not have, and so, can generate a new security consulting. the establishment of the rule base contains the information to be processed and when the custom information is touched and then who should be notified Security equipment in the linkage mechanism of the trigger now the leading manufacturers of mostly foreign Technology to software process simulation and defined above, and then have the program saved to the hardware devices installed in the RTOS. processing layer functions is done by this hardware of. the idea of ​​the security system, mainly by the circuit interfaces to be standardized to start, it would be for developers on the level of understanding of a variety of electrical control is a test. Such is the biggest drawback is that if upgrading Firmw are, can be handled the kind of information will be very few, if modified upgrade process, but also very inconvenient. If the security industry, IT industry perspective, this process can make use of the software layer in the form of completion can also use the Sc ript scripting language approach to the design rule base. guarantee stability, based on the full software flexibility and scalability of technology advantage. developers do not need to have a good understanding of the electrical protocol, the interface layer is controlled by the system, and the full support of the Application layer.

3.3 Application Layer
Application layer development, focusing on the users feel, to take an interactive user-defined, the use of video, graphics, sound, text and other comprehensive expression patterns, allowing users to place the first time to understand the situation, can quickly and easily start operating. The application layer software to deal with Expand the definition of layer can also subscribe by the information processing layer, processing layer through the underlying device operation.

4 Conclusion:
The rapid development of intelligent buildings, vital for building security device requirements, along with an increase, while fully open and functional interface, cohesive and high security products, security system developers to obtain the favor in the bounds of reason. Security development business development and expansion of its security will also promote the rapid development of standardized interfaces, smart advanced security system to serve the public is not far off.

References:
[1] SUN. Intelligent Security Systems [L]. Beijing: Tsinghua University, Mountain Press, 2006.

[2] Li Guanghai. Security system design process [M]. Xi'an: Xi'an electricity and Technology University Press, 2008.

[3] Zhou YA. Security System [M]. Beijing: Mechanical industry on the Press, 2005. Links to free download http://www.hi138.com