The international term "sponge city" refers to the construction of a low-impact rainwater system, which means that the city is like a sponge, which can absorb, store, infiltrate, and purify runoff rainwater on the spot or nearby when there is rainfall, replenish groundwater, and regulate water circulation. During droughts and water shortages, the stored water can be released and utilized, thereby making water migration in the city more natural. The core concept of sponge city is to solve flood problems on the spot, using a flexible and recyclable water control method to allow the city to absorb rainwater instead of transferring water to other places. The key to building a sponge city is to protect and restore the original rivers, lakes, wetlands, private ponds and other natural "sponges" that have water collection and conservation functions; on the other hand, to create artificial wetlands, rain gardens, and rainwater through scientific planning. Artificial "sponges" such as sunken green spaces and green roofs store and digest rainwater on site.
TSC Smart, Smart Sponge City Internet of Things Monitoring System integrates the concept of smart cities into sponge cities. By integrating a variety of new and accurate sensing and measurement equipment, it is reasonably distributed to various "sponge" monitoring sites, using the Internet of Things, cloud Information technologies such as platforms, big data, and edge computing synergize various centralized or distributed energy sources, green facilities, and sponge city construction facilities, thereby making the construction and management of sponge cities efficient and intelligent.
System composition
The smart sponge city IoT monitoring system consists of four parts: collection layer, transmission layer, application layer and display layer.
Collection layer:
It mainly includes equipment such as flow rate sensor, water level sensor, rainfall sensor, water quality sensor, infiltration rate sensor, soil moisture sensor, air temperature and humidity sensor, and video acquisition camera. Its main function is to collect the flow of the "sponge" monitoring site online in real time. , flow rate, water level, rainfall, soil moisture, permeability, air temperature, humidity and water quality information.
Transport layer:
The transmission of all collection equipment is composed of Lora long-distance wireless communication and GPRS (4G/3G/2G) network. The collection nodes are deployed wirelessly with Lora. The wireless communication distance between the nodes and the central point can reach 2500M-8000M, which can greatly reduce the number of users in the same city. Or the equipment purchase cost and construction cost of multiple "sponge" monitoring sites in an area.
Application layer:
The smart sponge city IoT monitoring system based on "Thinking Brain" uses cloud platform, big data, edge computing and other advanced technologies to monitor, analyze, warn, manage and make decision-making support for the entire sponge city process, and achieve sponge city performance evaluation indicators. It has functions such as evaluation, urban drainage/rainfall online monitoring, flood control emergency command and dispatch decision support, black and odorous water body supervision decision support, and sponge facility joint dispatch decision support.
Application layer:
The smart sponge city IoT monitoring system based on "Thinking Brain" uses cloud platform, big data, edge computing and other advanced technologies to monitor, analyze, warn, manage and make decision-making support for the entire sponge city process, and achieve sponge city performance evaluation indicators. It has functions such as evaluation, urban drainage/rainfall online monitoring, flood control emergency command and dispatch decision support, black and odorous water body supervision decision support, and sponge facility joint dispatch decision support.