Rainstorm and urban waterlogging: how to deal with smart city?
日期：2020-06-29
The flood in 2020 is ferocious and rare.
As of June 26, 26 provinces, districts and cities have suffered from flood disasters, with 13.74 million people affected, 81 people dead and missing, 744000 people in emergency relocation, more than 10000 houses collapsed, and a direct economic loss of 27.8 billion yuan.
Guangdong, Guangxi, Jiangxi, Yunnan, Hunan and other 24 provinces did not escape this disaster.
Everywhere I went was a mess.
Every year in the flood season, in the south of China, the heavy rainfall weather increases, causing frequent landslides, urban waterlogging and various secondary disasters, serious economic losses, seriously threatening the safety of people's lives and property.
Therefore, in the process of modern city construction, flood control and drainage construction is an important basis for the safe development of a city, which is not only related to the stability of urban water ecology, but also directly affects the stability of the overall ecological system of the city and the normal survival of people.
At present, there are some deficiencies and defects in the traditional urban flood control and drainage system. For example, during heavy rainfall, rainwater accumulates to a certain extent. If it cannot be drained, it is easy to cause traffic paralysis, which not only affects the normal travel of citizens, but also affects the development of the city to a certain extent. Therefore, in view of the problems existing in the urban flood control and drainage system of our country, we can adopt the vision threshold of smart city to carry on the corresponding discussion.
How to deal with flood disaster in smart city?
The "smart" city can not solve the hard injury on hardware by some information means, just like the development and wisdom of human brain, which can not replace the most basic requirements of physical health.
Through the historical data of urban flood, find out the characteristic variables, simulate the development mechanism of urban flood, and combine the data of information collection system, study and judge the probability of urban disaster occurrence and form the disaster reduction plan.
In short, intelligent drainage is: hydrological expert + emergency disposal expert + dispatching center.
Establishing the "brain" for urban early warning and troubleshooting
The "brain" of urban intelligence refers to the urban operation management center, which supports multiple types of data access through various integrated technologies, so as to realize the intelligent coordination of urban sensing, video monitoring and business systems, and achieve the whole process management and control of urban operation and management events from automatic detection of flood situation alarm to collaborative business system processing.
It supports the establishment of a fast and efficient linkage and coordination mechanism between the flood control and drought relief departments of smart cities and various urban systems; at the same time, it has high scalability. Relying on the urban information resource database, it establishes the analysis and decision-making model of urban operation and management, analyzes and excavates the laws and trends in flood disasters, and provides intelligent decision-making for leaders.
Flood control solution
In the early stage, the operation and management center of smart city can establish a flood control linkage response plan with the linkage units in view of the recent heavy rainfall weather in the urban area, strengthen personnel allocation, and carry out flood control command work jointly with relevant responsible units, and give full play to the role of emergency command hub.
In the city command center, the real-time video monitoring and water monitoring and sensing equipment can be fully used to monitor and collect information on key bridges, pumping stations and main water accumulation points in the urban area.
At the same time, combined with government hotline, smart municipal platform app and other channels, timely grasp the real-time situation of water level at key points of drainage, sections prone to ponding, road traffic, etc., and promptly notify relevant departments to solve problems in a timely manner.
By increasing the intensity of patrol, we will ensure that the accumulated water is found and disposed in the first time, and simultaneously use the outdoor guidance screen and online channels to push real-time road conditions to the public.
How to use big data to prepare for urban water affairs?
Smart city itself is a cross-border application and open thinking. Intelligent water services can sense the operation status of urban water supply and drainage system in real time through online monitoring equipment such as data acquisition instrument, wireless network, water quality water pressure gauge, etc., and integrate water management department and water supply and drainage facilities organically in a visual way to form "urban water Internet of things", analyze and process massive water information in time, and make corresponding processing results to assist decision-making To manage the whole production, management and service process of water system in a more refined and dynamic way, so as to achieve the state of "wisdom". For urban drainage: Based on the hydrological prediction data and the current situation of the city, as well as the big data analysis of the upstream and downstream cities, we can find the real correlation and make some judgments from the surface to the line and from the line to the point. Among them, the most important thing is that the city must build a set of data model in line with the status quo, and constantly revise and domesticate it through practice to make it more in line with the status quo, so as to make full use of it and make scientific and reasonable judgments. In the three processes before and after the event, make a wise response.
"Intelligent flood control" makes flood control more timely and scientific
Through the integration of all kinds of existing flood control data, a flood control comprehensive information query system is established, which integrates the information of work, water and weather. It can not only monitor and collect the information of rain, water, work and disaster in the area under its jurisdiction in a timely and accurate manner, but also can query on the computer, mobile phone, tablet and other devices, so as to realize the sharing of flood control information resources and improve the prevention The efficiency and accuracy of flood information transmission play a role in flood control commanding and dispatching.
