How Can Video Command and Dispatch Help Urban Flood Control and Disaster Relief?

Time China Security Exhibition Reuters modern city as a strong integrated function of population centers, in the face of natural disasters, often due to "affect the situation as a whole", if you want to minimize the harm, then the reaction is also for risk It must be controlled to the shortest. There are unexpected circumstances, and in ensuring the safety of modern cities, the warning and emergency handling of natural disasters has risen to the same level as social security and the prevention of man-made destruction. Under the background of technological security, video command and dispatch is playing a more and more important role in urban security.

On July 21, Beijing experienced the greatest rainstorm in 61 years, and tested the city’s emergency capacity. With the rapid development of social economy and the rapid improvement of living facilities, the density of urban population has become higher and higher. As a result, the danger caused by sudden disasters is also increasing.

In actual operation, the government and related organizations want to control the situation in the shortest possible time and formulate sound solutions. First-hand on-site information is indispensable. Video command and dispatch can be combined with third-party data services, security alarms, and voice scheduling to form a powerful integrated video application communication platform, enabling multiple users to visualize multi-level command and dispatch at the same time through different networks in different locations. Remote negotiation. In particular, with the continuous maturation of 3G network applications, mobile applications have made video command and dispatch more practical in emergency situations.

Incidents triggered by weather factors are highly random, location and time can not be determined, and the effect of fixed-point monitoring systems is very limited. Relevant studies have shown that only about 50% of sudden events and large-scale mass events can be effectively applied to the current fixed-point video surveillance systems. This severely hindered the video command and dispatch system should have an emergency effect.

The mobile video command and dispatch is based on portable devices such as smart phones and tablet computers that are easy to carry, and relying on 3G networks not only enables related personnel to feedback real-time conditions to the rear command center, but also enables real front and rear interactions. And can effectively avoid the emergence of monitoring blind spots, to prevent missed the best rescue opportunities because they do not understand the site conditions. With the active promotion of operators, the current 3G public network has been directly proportional to the area and scope of activities of the public. In principle, 3G signals can be covered as long as people can reach the active area. The mobile video command and dispatch system based on 3G network operation has effectively reduced the dependence of the equipment on the surrounding environment and won more time for the rescue under extreme conditions.

With the rapid development of information technology, the network has become an important part of people's daily lives. Using the convenience of the network and the security of the city has naturally become the first choice for the information society. Experts in the projection era believe that the use of network communication technology to achieve unified command, timely response, and effective combat have become the basic requirements for modern urban rescue, and this is the driving force behind the rapid rise of video command and dispatch. With the strong support of the government, the rapid advancement of such projects as safe cities and safe rural areas will provide more room for video command and dispatch.

Lifting And Traction Winch

According to different methods of use, winches can be divided into four types: manual winches, electric winches, pneumatic winches, and hydraulic winches. At present, the largest marine hydraulic winch is 350T, and the weight of the equipment reaches 150T.
According to the reel form, it is divided into single reel and double reel.
According to the reel distribution, there are parallel double reels and front and rear double reels.
The main technical indicators of hydraulic winches include rated load, supporting load, rope speed, rope capacity, etc.
A winch is a light and small lifting device (see hoisting machinery) that uses a reel to wind a wire rope or chain to lift or tow heavy objects, also known as a hoist. The winch can be used alone or as a component of machinery such as lifting, road construction and mine hoisting. It is widely used because of its simple operation, large rope winding volume and convenient displacement. The winch is also known as the hoist. The product has high versatility, compact structure, small size, light weight, heavy lifting, and convenient transfer. It is widely used in construction, water conservancy projects, forestry, mines, docks, etc. for material lifting or flat towing, and can also be used as modern electronic control Supporting equipment for automatic operation line.
According to the power, the winch is divided into three categories: manual, electric and hydraulic.
The transmission mechanism of the handle rotation of the manual winch is equipped with a stopper (ratchet wheel and pawl), which can keep the heavy object in the required position. The manual winch used for assembling or lifting heavy objects should also be equipped with safety handles and brakes. Manual winches are generally used in places where the lifting capacity is small, the facilities are poor, or where there is no power supply.
Electric winches are widely used in places with heavy work and large traction requirements. The electric motor of the single-drum electric winch (pictured) drives the drum through the reducer, and a brake is installed between the electric motor and the input shaft of the reducer. In order to meet the needs of lifting, traction and rotation, there are also double-drum and multi-drum winches. Generally, a winch with a rated load lower than 10T can be designed as an electric winch.
The hydraulic winch is mainly a winch with a larger rated load. Generally, the winch from 10T to 5000T is designed as a hydraulic winch. The winch can be divided into:
Marine winches: Marine winches can be divided into drag winches, mooring winches, anchor winches, traction winches, etc.
Engineering winch: Mainly used in engineering, with functions such as hoisting and hoisting as the main function.
Mine winches: divided into hoisting winches, dispatching winches, shaft sinking winches, column return winches, rake mine winches, column return winches, etc.
Cable winch: mainly used when laying cables.

Lifting And Traction Winch,Pneumatic Winches,Hydraulic Winches,Electric Winches

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