Urban residential population is concentrated, and the construction of a large number of the matching facilities such as shopping malls, markets, schools, kindergartens, hotels, hospitals and other gathering places personnel, resulting in fire danger is high. Most residential area away from the urban case, the fire is relatively weak infrastructure, residential fire inside the building since the beginning of fire fighting facilities can not meet the needs of residential settings with security door security network form a human barrier to fire and rescue work led to great difficulties, but also to fire the work of the new requirements.
If using automatic fire alarm system, it is an effective fire prevention, control fire and to minimize fire losses of important measures. Then choose what kind of fire alarm system is best suited for? According to the different level of building fire protection, general alarm system has the following three types.
One control center alarm systems Control center's fire alarm control alarm system located in the fire control room, equipment and other fire control equipment, linkage, using decentralized control and centralized remote control in two ways, the fire-fighting equipment working status feedback signal that showed In the fire control room monitor or total console to fire safety within the building to conduct a comprehensive monitoring and management. Detection alarm system control center in the region up to hundreds or even thousands.
Second, focus on alarm system Centralized alarm system should be set by hand on duty within a room or fire duty room, or will it lead to the fire control room output, contribute to the overall building fire alarm system centralized control and unified management.
Third, the regional warning system A regional warning system, the area alarm controller should not exceed three, because the focus is not set alarm controller, too much area when the fire alarm is not easy but dispersed centralized monitoring and management.
These three systems should be in the actual application process to be used under specific circumstances.
Then automatic fire alarm system fire detectors how should use it?
Fire detector is to use a fire smoldering early stage there is a lot of smoke and a small amount of heat produced, to the earlier discovery of fire hazards, smoke detectors should be used. Intelligent Community of the fire protection systems and more use of such detectors.
For the smoke detector is, in no-smoking, clean environment, a place with better conditions, such as computer rooms, stacks, etc., use level sensitivity, for the general sites, such as bedroom, living room, etc., used level sensitivity. For often a small amount of smoke, environmental conditions often change places, such as meeting rooms and shopping malls, etc., select the sensitivity level .
And automatic fire alarm control alarm controller can be divided into regional and centralized alarm controller. Both in its composition and working principle of the similar, but have selected the following differences:
1. Area alarm controller range is small, can be used alone, and concentrate alarm controller responsible for the entire system, not alone.
2. Regional alarm control signal from the various detectors, alarm control and concentrate on the signal input from the regional general alarm detector.
3. Regional alarm detector must have the self-test function, but should focus on self-test and alarm control inspection two functions.
Because of these differences, use the two can not be confused. When the monitoring area is small, can be used alone formed a regional alarm control fire alarm control system, it can not replace the regional concentration of alarm control alarm controller to use.
Fire alarm control fire alarm can be used alone, but also disaster prevention and fire fighting systems with automatic linkage to form the automatic alarm joint control system.
Recent years, with the development of 3G technology, 3G, as the representative of high-tech, relying on GPS, GSM and GIS are three modern high-tech intelligent fire alarm system, fire is really a revolution.
GPS, or Global Positioning System. Initially mainly used for military purposes, may at any time, any place to provide users with three-dimensional position, velocity and time information service system. Worldwide, around the clock to provide users with continuous, real-time navigation and positioning. High positioning accuracy, speed, good anti-jamming performance. The system is now widely used in military, scientific research, as well as transportation, mapping, communication, exploration and other fields, has penetrated into people's daily lives, such as the residential area of intelligent management and medical care and so on.
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Visiting Boston? This beautiful city has so much to offer. Watch more than 25 video guides at www.vidtur.com with all the top attractions and landmarks in and around the city. here are the 10 must see attractions in Boston not in a particular order to help you plan the perfect vacation.
In a city that is the home of the nation's top universities, we can start our list in the Massachusetts Institute of Technology, AKA MIT, located in Cambridge. this great institute features 168 acres of architectural buildings, statuary and the MIT Museum. One of the highlights of the MIT is the Stata Center, a complex known for its controversial design, built in 2004 and designed by the well-known architect Frank Gehry.
At number 9 we suggest the Massachusetts state house. the 1797 historic landmark is one of the 16 stops of the famous Freedom trail. watch our special video on this trail at Vidtur.com. the Massachusetts state house is one of the most beautiful buildings in the trail, mainly recognized by it's gilded dome, and red brick façade. and it is located in one of Boston's most beautiful naighborhoods, Beacon Hill. Guided tours of the historic building are available all year long, for free! As you may imagine, this is not the only landmark from the Freedom trail on our list...
At number 8 we recommend the oldest public park in Boston, the Boston Common. The peacefull park was not so peacfull before the 1817, as it was used for public hangings. located in the heart of the city, this huge park features some of the mst popular sights of Boston, and it is also the first station of the freedom Trail. Watch our special video guides on the Public Garden and Downtown Boston.
Number 7 is Prudential center. This commercial complex features many of the most popular shops in the fashion world. One of the exciting attractions is the Prudential Skywalk in the 50th floor of the Prudential Tower, which is one of the tallest skyscrapers of Boston. The “Top of the Hub” restaurant on the last floor is a great place to view the whole city and enjoy a tasty meal. Check Vidtur.com and learn how to save money when visiting the Skywalk observatory on the 50th' floor
For those of you who love baseball, number 6 is a historic landmark! Fenway park is home to one of the most popular teams in the history of the US, the Red Sox. “The Green Monster” was opened in 1912, and it went through many changes since then. the park also hosted some of the unforgitable concerts in the US, like the famous Ray Charles appearance in 1973.
At number 5 We are leaving Boston and heading to Concord and lexington. two towns that played an important role in the history of the revolitionary war, and an extremely popular tourist destination. check vidtur.com fror several video guides about top attractions in both cities.
At number 4 we are back at UNI. This time we have Harvard. in the middle of this old university you can enjoy the Harvard Yard area, where many historic buildings are, like the oldest academic building in the US, which was built in 1720. this and many other great attractions are located in the 25 acres of grassy area of the uni.
Time to do some shopping. with More than 100 stores are available in our number 3 attraction. quincy market is packed with upscale restaurants and food stalls and more. Visit the market at the weekend, when many outdoor shows take place. the market is located in Downtown Boston, so watch our video guides on this area and learn about Faneuil Hall building.
At number 2, visit one of the city's most popular sqaures, Copley square.famous for the most famous churches in the US, the Trinity Church. the church is well-known for its unique Romanesque style, designed by Henry Hobson Richardson. Copley square is also the home to Boston Public Library and to the second tallest skyscraper in Boston, the John Hancock Tower. the combination of new and old buildings in the small square gives it a great atmosphere you will not want to miss!
At number 1 we will take you for a tour on the uss constitution, an invincible warship located in Boston Naval Shipyard. In 1907 the ship was turned into a museum where visitors can learn more about the history of the ship. this is a great attraction to visit with the family, for more details on family attractions in Boston check out our website.
Looking for more tips and video guides to plan your next vacation? check out the many travel guides at Vidtur.com and make sure you have all the information you need before you book a ticket to your next destination.
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