【 Weak current College 】 fire remote monitoring and alarm system

According to the current situation of the fire service and the development of modern technology, building fire alarm system remote monitoring and control of the necessity and possibility to explore, analyse the fire remote monitoring alarm system's basic structure, networking options and functionality needs.
1 building city fire remote monitoring and control alarm system necessity of

The city is concentrated in the regions, the population of urban fire often enormous casualties and property damage. In recent years, a variety of new enterprises, more and more the tertiary industry, scale is getting bigger and bigger, while the number of various types of fire, the loss is also increasing. From China's fire losses, the 90 's, urban crime, fire in all heavy, oversized fire in proportion of the number is increasing, especially in public places and malignant fire accidents continued to increase. According to "China Fire Statistics Yearbook statistics indicate that the 1997 ~ 2000 national fire occurred approximately 300, including urban fire accounted for about 80 per cent. In these serious fire, a significant part because of the fire alarm not timely or not implementing on-duty system units and the fire does not have access to timely and effective control, leading to a small fire recipe for disaster. Therefore, the reality of the situation requires modern city fire must form an effective fire prevention network, remote monitoring and control at all times to monitor the key unit of urban fire safety. To do this, you want to keep abreast of monitoring targets of fire safety situation, when a major exception occurs, immediately to monitor alarm, fire, will soon determine fire control and eradication in the embryonic stage, in order to reduce the tremendous urban fire disaster.

2 city fire remote monitoring function of the automatic alarm system

Establishing urban fire remote monitoring network, fire safety key unit of automatic fire alarm system to detect anomalies that can be transmitted through the network notification even real images to fire monitoring center. Sure fire, immediately will fire wiped out to budding, thereby avoiding substantial property damage and casualties. Since the establishment of a fire safety key unit of fire management systems and urban fire command center, the direct link between reduced alarm handling time, improves fire brigade's rapid response capacity to achieve fire alarm full automation offers a new means.

"As main, againstdisappears connections," is our principle of work, the only fire protection work well, in order to minimize fire occurred. By this stage, the fire safety key unit distribution of generalized and fire personnel shortage has always been a rightness of Antinomies. If you have a remote monitoring and control of urban fire auto-alarm system, fire safety key unit and city fire command center direct link between the city of monitoring center to perennial real-time monitoring in all cities of automatic fire alarm system health and personnel on duty, resulting in an overall improved the city's fire management level, strengthening the awareness of fire.

3-building fire alarm system and remote monitoring of technical possibilities

As computer network technologies, particularly Internet technologies, the rapid development of a variety of sensor technology and the development of modern communications technology, making long distance and fire alarm monitoring possible, so that we may be on the basis of modern technologies, establish a city fire remote monitoring and control alarm system. Along with the construction of the information highway, through IP broadband network technologies, such as using MPLSVPN can easily achieve fire proprietary network. Improvement of the degree of automation in buildings as well as smoke sensor, light sensor, temperature sensor and wireless fire alarm system development for municipal fire monitoring system for automatic alarm, remote monitoring provides real world technology base.

4 urban fire remote monitoring alarm system's basic structure

Remote monitoring and control of urban fire alarm system involving urban fire safety focus of the various units, fire management, as well as Internet technology provider, is a complex project. Simply put, remote monitoring and control of urban fire auto-alarm system is to the city's fire safety key unit alarm device through urban fire services private network and fire monitoring center networking.

Which city fire monitoring centre can play by the local fire department, and the various fire safety key unit is as remote information monitoring unit for monitoring center real-time monitoring of all fire safety key unit of an automatic alarm system.

All units and fire alarm monitoring room is the remote monitoring of urban fire auto-alarm system, the unit through its automatic fire alarm system for the collection of information, is responsible for fire alarm system maintenance and context. Once the probe found that the fire, in the user data terminal to the city fire monitoring center warning, the units of video server site image transfer to municipal fire monitoring center. Units of the user data terminal should advance set IP address, so that when the monitoring Center received a unit of an automatic alarm signal to the alarm electronic map location, display alarm unit information, monitor the scene images for confirmation. As monitoring managers, monitoring center is mainly responsible for the various units of the periphery and fire alarm monitoring, treatment units for automatic warning information and real-time monitoring of all the cities in all of the automatic fire alarm system health and staff on duty.

5 city fire remote monitoring alarm system networking scheme

The key unit of fire safety and fire monitoring center networking programme, focusing on establishing what kind of fire the private network. We fire the private network requires mainly has following several points:

(1) stability;

(2) high-speed, high-bandwidth (transfer monitoring image needs);

(3) security;

(4) spend, use cost less. Next, we according to the actual situation and network technology development on fire private network networking programme.

At this stage, the establishment of private network mainly has following several ways, one is through the public telephone network (PSTN) are far-Dial-up, its main disadvantage is not stable and high cost; the second is hiring data dedicated line (DDN), the main disadvantage is the high cost. And both relative is in the public data network technology to build a private network that VPN. Use VPN technology for municipal fire protection private network should become our optimization program, which can effectively reduce costs, ensure that network communication process in the security of your data.

In addition, as at present, China's 90 per cent of the network LAN Internet IP technologies have been used, IP technology has become the broadband business network's core technology. Broadband metropolitan area network using IP technology, with a unified Ethernet structure, run Unified IP Protocol, without any form of protocol conversion, use MPLSVPN-to-peer technology to easily implement urban fire services dedicated Internet business, we can guarantee that data transmission of high efficiency, high performance, high-bandwidth, and can simplify device, reducing costs.

To sum up, in the broadband IP man used MPLSVPN technology urban fire services private network is by far a better solution. If conditions do not allow it, or you can consider using integrated services digital network (ISDN) with dedicated ISDN router, using dial-up VPN approach as a solution.

6 urban fire remote monitoring alarm system functional requirements

Remote monitoring and control of urban fire alarm system should have the following basic functions:

(1) to consider and 119 command center networking, automatic fire alarm information should be able to carry out electronic map location, display alarm unit information and automatically switch to the on-site monitoring;

(2) due to fire private network built on the public network, you should ensure that network security, the system should have the access control, data encryption, firewalls, network address translation NAT and other security technology means;

(3) fire monitoring centre should be able to fire the entire private network of various equipment for centralized monitoring, remote, remote control, system configuration, alarm data analysis and processing and save the monitoring station for monitoring data;

(4) because of the many fire safety key unit has already installed the "automatic fire alarm system", in the construction of municipal fire remote monitoring alarm system should consider compatibility.

Should be compatible with a variety of means of communication, and can provide a variety of interfaces or a unified interface to all units of automatic fire alarm devices join to make use of existing equipment, as soon as possible and play "remote monitoring and control of urban fire alarm system".

7 remote monitoring and control of urban fire alarm system implementation feasibility

Fire has become a modern city one of the major disaster, more and more people's attention. While the building fire alarm system remote control, minimize risk, improve city fire fire safety has important practical and economic sense. Fire fire alarm remote control and automation, as well as a city fire work information management of important flag. So when in implemented should the local government and the Fire Department's support, publish files or enact local regulations in order to facilitate the work. Establishing urban fire monitoring network management company, is responsible for remote monitoring and control of urban fire auto-alarm system-related work; by local building audit, fire supervision, and other departments, organizations area conditions units and implementation phases, batch join city fire remote monitoring alarm system.