【 Weak current College 】 fire-fighting facilities and remote monitoring applications in the Olympic venues

Summary: this article on the 29th Beijing Olympic venues construction fire-fighting and fire auto-alarm remote monitoring system for elaborate, detailed the system architecture, system, system features, workflow, and security of the system design has made a detailed analysis.

Keywords: Olympic Games, remote monitoring municipal fire protection systems, fire alarm, fire protection facilities

1. Olympic venues construction fire facilities remote monitoring system of meaning

United States "9.11" event occurs after the various staff-intensive, large, comprehensive fire safety in public places has aroused great attention and throughout the world. Now, in 2008, the 29th Olympic Games of various kinds of large-scale competition venues, training venues and related facilities, large multipurpose buildings are tense construction, these places in the tournament when, after the use, in the event of fire would likely result in casualties, causing property damage, and to social stability and development.

In order to achieve the "new Beijing, new Olympics" strategic thinking, and create a good fire safety environment, large multi-purpose public building fire safety characteristics of the integrated technology, become Olympic project construction process necessary and urgent topic. To the Olympic Park (b) "National Convention Center and supporting project", for example, its area 12.21 hectares, with a construction area of 53 million square meters. In the 2008 Olympic Games, a construction undertaking two Center (international broadcasting centre, the main information centres), two competition venues and a training venue (fencing and modern pentathlon in fencing, air pistol competition) tasks, in the building during the Paralympics also undertake two Center (international broadcasting centre, the main information centres) and two wheelchair games (wheelchair fencing, wheelchair Boccia) tasks. After the game has an integrated domestic and international conferences, exhibitions, hotels, office buildings, commercial, 11 000 volt underground substation and a large underground car park and the City Metro, bus lane, shared channel connectivity features, the project will become China's largest multifunctional international exhibition complex one of the groups. According to the latest issue of Beijing city master plan, the regional development of the future will be to serve the whole country and the world centre of urban functions. When the project events (Olympic Games, Paralympic Games), after the three phases of architectural space use functional differences in the composition of large, complex (especially Paralympic athletes with a disability or severe disability), how to solve their problems, ensure the fire safety of building fire facilities long run normal stable, reliable and automatic fire alarm information timely and reliable transmission into the project implementation challenges.

2. Olympic Stadium fire facilities remote monitoring system

Olympic Stadium fire facilities remote monitoring and management system for the 2008 Beijing Olympic Games and the design of fire safety. The system is based on the "hi-tech Olympics, Green Olympics" theme, based on the Beijing Olympic action plan on the security requirements of the special program for the 2008 Olympics fire control of critical points, in accordance with the established Beijing emergency command system "work programme" about fire safety and fire information network by establishing "requirements, the references of national standards to be approved by the city fire remote monitoring system specification, GB16806 fire linkage control devices-transmission equipment" and "urban fire remote monitoring system communication protocols", refer to the United States, Australia, Canada, United Kingdom, Germany, Japan and other developed countries in the establishment and application of urban fire auto-alarm networking monitoring management system successful experiences and research and development.

Olympic Stadium fire facilities remote monitoring system uses the Gulf GST-119NET third generation urban fire safety design of remote monitoring system platform. The system is an Olympic Games all competition venues, independent training venues and non-competition venues within the standalone installation, decentralized operation of the "automatic fire alarm system," "automatic fire extinguishing system" constitutes an alarm set display, audio and video fire aided validation, equipment condition monitoring management, maintenance services, and features integrated remote, network monitoring and management system.

The system can and Beijing municipal emergency response command center, Beijing fire communications command center, 5.28 Olympic fire command center system, automatic transmission of alarm signals. The system is enhancing the fire forces rapid reaction capability and fight the fire in the early success of an important means.
System features: use of broadband networks in the various competitions, the Olympic Games independent training venues and non-competition venues within the fire protection and fire alarm system of comprehensive monitoring, real-time reception, display, handling networking units of alarm information and fire facilities operating status information, to urban fire services communication command system, fire supervision, management and maintenance units transmit fire alarm information, building fire facilities operating status information and key unit of fire safety management information. The automatic fire alarm information through video, audio, and data for auxiliary judgment, to improve the timeliness of fire alarm and reliability; building fire facilities for timely processing of fault information, improve building fire facilities good condition; the fire key unit of fire safety management situation and fire safety focus areas for monitoring, supervision and fire departments, law enforcement and law enforcement objective accuracy.

3 Olympic Stadium fire facilities remote monitoring and control system architecture design

1. system architecture design

From the Olympic Stadium fire facilities remote monitoring system size, needs to cover distribution in urban area of 31 competition venues, 47 independent training venues and 15 non-competition venues, monitoring a wide variety of objects, the type of the complex; from the network perspective, in the case of complex large-scale network monitoring, node type, large amounts of data. It system design and General small conventional LAN class design completely different starting point. Technical fire-fighting facilities remote monitoring network in addition to common Internet (Internet) And Ethernet (Ethernet), in front of the system, but also to the CAN bus network, 485 bus network, LONWORKS, especially in fire networking with industrial-grade networking technology.

In the monitoring center, and the front-end server needs to maintain the information transmission equipment for a large number of connections, is responsible for receiving and processing of alarm data this data volume, real-time performance requirements of high-performance work; centre alarm I client needs and system operators directly interact, need to provide a comprehensive graphical interface and user-friendly operation modes, etc; and command centers and other management departments need to remote system information to navigate, query, statistics, decision making, etc.

In response to the above, the system ideal for schema is complex network structures, the use of C/S + B/S structure design, combined with Olympic security management system of the actual model, stable and flexible, to meet the central command on the data processing performance, stability, robustness and high demand, and meet the remote information queries, remote users, services, and other features based on the Internet. In systems network architecture with the most adapted to the needs of the tree class over a distributed network architecture.

2. system architecture diagram

Olympic Stadium fire facilities remote monitoring and control system architecture diagram design.

3. system architecture design description

(1) the system overall design for the three-tier structure, the first layer is the Beijing fire communications command center, Beijing municipal emergency response center and Beijing municipal fire remote monitoring centre, the Olympic fire communications received 5.28 command center forward alert and run state information and other data.

(2) the second level is 5.28 Olympic fire communications command center, responsible for the summer Olympic and Paralympic competition period of fire safety and fire alarm processing. 5.28 Olympic fire communications command center to monitor 31 competition venues, 47 independent training venues and 16 non-competition venues, receive alerts from all venues and running information data, receive data consolidated summary, for the establishment of the Olympic fire safety information database to provide the underlying data. All data can provide a Web query.
(3) the third layer is located at the competition venues, independent training venues and non-competition venues in permanent fire control rooms, fire control indoor installation with a set of one or more sets of automatic fire alarm equipment, automatic fire extinguishing equipment control client, networking, monitoring equipment, closed circuit television monitoring system, responsible for local scope automatic fire alarm signal acquisition and transmission, responsible for local scope automatic fire alarm facilities, fire-fighting facilities and networking monitoring facilities management.

(4) in the Olympic fire communications 5.28 command center formation 100M/1000M Ethernet join all workstations.

4. Olympic Stadium fire facilities remote monitoring system form

Olympic Stadium fire facilities remote monitoring system consists of a user-end transmission equipment, alarm monitoring, network, remote monitoring center and external data interface.

(1) user-to-end transmission equipment using industrial grade 32-bit ARM processors, and automatic fire alarm system, fire-fighting facilities and their operating status information, through the alarm monitoring network will alarm monitoring information and fire safety management information is sent to the monitoring center, information collection, processing and forwarding, self-inspection, displaying, start and control functions.

(2) alarm monitoring network, i.e. transmission network platform for various venues of dispersion, consider information response speed, design uses China Netcom's Internet-based VPN (virtual private network, VirtualPrivateNetwork).

(3) the composition of the remote monitoring center

A. alarm monitor incoming server

B. monitoring management workstation

C. when recording system

D. fire geographic information system

E. fire safety management information system

F. user service management information system

G. video image display and hard disk video system

H.WEB server

I. alarm and running information forwarding system

J. large-screen display system

K. database server and data backup system

L. network and power equipment

(4) external data interface

A. and Beijing municipal fire communication command system, emergency dispatching, Beijing and Beijing municipal fire remote monitoring system data interface;

B. urban fire administration data interface;

C. building fire facilities maintenance units of data interfaces;

D. and user, user-related management of connection;

E. and Internet connection (under the authority of a WEB query, browse)

4, Olympic Stadium fire facilities remote monitoring and control system security design

1. a system of information and communications security

System user-end transmission equipment and the remote monitoring center software based on TCP/IP communications, using high-strength encryption algorithm to encrypt the data on the alert to ensure that data will not be intercepted in the midway and disclosure; system communication based on IPSec VPN channel is established, the transfer of data through a variety of cryptographic algorithms for encryption, ensure that the information in the security during the transfer.

2. a system of network security

The monitoring center intranet and extranet physical isolation between. The gap to achieve internal and external network data by ferry and Exchange, protect intranet security. Intranet and VPN between logical isolation. The configuration of the firewall with VPN function, realization of the Security agent, information packageFilter, internal and external address bindings, preventing non-authorized users through network access intranet.

Network security audit and enterprise-level intrusion prevention system, primarily used for protection from unauthorized access to the Internet, and illegal attacks. At the same time, through its powerful monitoring features, you can effectively monitor and record all kinds of networks, real-time comprehensive analysis of the network security event occur, external events such as external intrusions and internal events and, in accordance with the rules set out intelligently determine network anomaly behavior and the behavior of the exception logging, alerting and blocking.

3. a system of database security

System uses Oracle, SQLServer database security, a database of user name/password authentication and Windows integrated authentication system, on a variety of data object recursively refine the authorization, rights management granularity down to table, data objects, data fields, and even a single data record so that users can access the scope of the guaranteed availability of maintaining the minimum permissions set.

4. the system's host security

System data acquisition servers, data servers, database servers, answers alarm the client and so on each kind of computer operating system, select the security level is high, controlled by the operating system; the configuration of your computer for attestation, closed system is not used to port; full use Unix and Linux system's security mechanisms, as well as Windows group policy, the local security policy, and so on; establish a unified identity authentication system, unified authorization and access control system, unified security audit and log management system, etc.

5. the system of hot backup

System from the communication line, data reception, data processing, data storage and so on many levels for redundant hot backup design, in some sectors suffer attack or failure, overall command system is still functioning smoothly run, ensure that the entire system running without interruption. When the system all links under attack or fails, the system can accurately record and update report, to provide a guarantee stable operation of the system.

Hot backup of the database using Oracle, SQLServer database offers hot backup mechanism. Using the Oracle database, RAC (real application clusters RealApplicationClusters) technology, which enables the backup of two databases Server data synchronization, and seamless switching.

User-to-end transmission equipment with dual mode combo backup communication lines, when a communication line failure, automatically switches to standby lines of communication.

6. a system of anti-virus protection

System virus defense system to adopt proactive defense system, through the establishment of the network from the server side to all of the security personal terminal node monitoring network, the node is placed under the control of the Security Center, take the centralized control, distributed processing strategies. For preventing virus outbreaks of cross-infection, will be placed within the controlled virus caused the stoppage of work in large organizations.

The network version of antivirus software through existing powerful known and unknown virus defense capability, computer system extended protection capabilities, and will continue to improve functionality, you can help the user in the system application build strong virus defense.

7. the system design

System uses multiple levels of permissions for the design and use of multiple authentication mechanisms to ensure the safety of the system.

Establish a unified authentication and authorization management system: based on user security levels, allows the user to use the regular "ID + password," and "dynamic password" and "fingerprint" and the "certificate" means a variety of authentication, centralized user authentication and permission management. Provide encryption mechanism: application system can be established based on PKI encryption mechanism of information transfer, may also be established based on a symmetric key encryption mechanism, the confidentiality of the information transmission.
5. Olympic Stadium fire facilities remote monitoring system for the implementation of the function and role

(1) system with networked structure design, making full use of modern communications platforms, the hall monitor Terminal and monitoring center through TCP/IP communication, ensure that fire and health status information for reliable transfer. System, reasonable structure, strong applicability;

(2) 5.28 Olympic fire communications command center adopts TomcatWebServer, based on the Oracle platform for large databases. Using Java technology, real-time collection receive the stadium fire alarm controller of the data;

(3) in alarm and management level, the Olympic Stadium remote monitoring system is divided into three tier architecture, realization of automatic fire alarm and running the distributed processing of information;

(4) system is an automatic fire alarm system, automatic fire extinguishing system, a security monitoring system, through the combination of intelligent algorithms that will fire auto-alarm, automatic fire-extinguishing, video monitoring organic combination of three independent systems;

(5) system implementation the stadiums control room information, fire detection and alarm systems, fire control system (fire linkage controller, automatic sprinkler systems, fire hydrant system, gas/foam/dry chemical fire extinguisher system, smoke, fire doors and roller shutter system, elevators, fire phone/radio/emergency lighting, fire power supply systems, etc.) of the fire and running information real-time acquisition and dynamic management;

(6) system is both a fire alarm system, guarantee the Olympic and Paralympic fire safety during the period; and an Olympic venues construction monitoring and management system for fire-fighting facilities, ensure the venue after the fire-fighting facilities running, monitoring and maintenance needs;

(7) alarm linkage and alarm acknowledgement of implementations

A. using data information way alarm, alarm information in addition to the monitoring center show, command center of the Olympic Games,City emergency response command center, 119 dispatching Centre, and related delivered linkage unit, by telephone, text message and email to alarm unit managers, shift personnel transfer;

B. adoption of bi-directional, live video-assisted confirm the automatic fire alarm;

C. adoption of the alarm unit associated data information aided fire, shorten confirmed fire confirmation time;

(8) implementation of the staff on duty; centralized management

(9) alarm information, failure information and Watchkeeping officer on duty to send short messages to the fire safety leadership and related personnel to remind the competent leadership readily monitor fire alarm system health and staff on duty;

(10) GIS geographic information system hierarchy display Hall Road, transportation, fire-fighting facilities location of water, and key unit, evacuation channels information such as location, display alarm unit location maps, floor plans;

(11) provides a Web query, browsing, as authorized by the fire management, user management personnel with the necessary data;

(12) the timely provision of devices running status report for building fire safety inspection and maintenance with first-hand information to raise the fire alarm system utilization, guarantee system reliable, regular, stable operation.

6, Olympic Stadium fire facilities remote monitoring system workflow

Olympic venues construction fire-fighting and fire auto-alarm remote monitoring system for fire information workflow shown in Figure 2. When a complex automatic fire alarm system to detect automatically after the fire, the local police on duty to determine the authenticity of the information by automatic fire at the user end transmission equipment delivered to 5.28 Olympic fire communications command center, Center-spot on duty with intercom and access to live video image information judgment fire alarm. As confirmed by real fire, the public network to send out commands which fire station.

Fault information workflow and automatic fire alarm information workflow.

The system works and the process is as follows:

(1) fire alarm controller detected alarm information, in addition to the normal display and the scene warning, through transmission equipment to pass information to 5.28 Olympic fire communications command center;

(2) is located in the Olympic fire communications 5.28 command center Communications Server on all alarm information acquisition. Communications Server receives the alert information, on the one hand the alarm information store database by category, on the other hand delivered to the client for display alarm; at the same time according to predetermined linkage relationships start live video transmission equipment, transmission of video images. Center on duty can choose whether or not the field duty officer intercom;

(3) alarm client receives the alarm message, the text and graphics in two ways at the same time display alarm content. Text information include: the alarm time, alarm units, alarms and alarm point unit address details (detector coding or actual installation location) of the relevant person in charge, telephone, and you can query the alarm point details (including alarm point architectural characteristics, fire hydrant set location, diameter and pressure, storage materials and so on); graphically display alarm unit at the factory floor plan on the exterior of the building, floor plans, fire hydrant, escape, and so on, and can be positioned on the floor plan specific alarm detector location display alarm detector type. Answers alarm the client receives the alarm information automatically distinguish between fire, malfunction information types to voice "Please confirm that the fire," "Please confirm failure" to prompt the person on duty. When the alarm client software is not running, and alarm information access, set the prompt to run in the background automatically prompts;

(4) Monitoring Center on duty on fire after confirming information, automatically fire information forwarded to fire dispatch table for dispatching. And on the basis of the system pre-set SMS message delivery mechanism, the alarm information is sent to the designated responsible person on duty or related.

7. closing remarks

Olympic venues construction fire-fighting and fire auto-alarm remote monitoring system as Olympic infrastructure is an important component, you can implement the automatic fire alarm network interconnection, resource sharing, scheduling, monitoring, early warning, from alarm, alarm to the Scheduler, command and fire fighting, rescue, rescue fire disaster integration. The system is able to raise the fire alarm during the Olympic Games of automated early warning capacity, reduce delays caused by the police to better grasp the initiative accepting fire alarm, while strengthening the Olympic competition venues, training Hall, building fire facilities monitoring management, ready-to-grasp complex automatic alarm systems, automatic fire extinguishing system for dynamic, timely detection of failures, be maintenance solution to improve Olympic venues overall fire safety management standards.