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Monitoring and early warning of geological disasters caused by flash floods
1、 Application scenarios
(1) Mountainous areas: landslides, collapses, mudslides;
(2) City: Road waterlogging, river water level, drainage system;
(3) Hydrology and water conservancy: hydropower stations, reservoirs;
(4) Other: low-lying areas;
2、 Requirement analysis
China is a mountainous country, with hilly areas accounting for about two-thirds of the country's land area. China is mainly located in the East Asian monsoon region, with a wide distribution of rainstorm; The monsoon climate determines that rainfall in China is unevenly distributed throughout the year, with highly concentrated flood seasons. Mountain floods caused by heavy rainfall are the most frequent and harmful. The monitoring system for water and rain conditions, as well as geological disasters caused by mountain floods, is an important non engineering measure for preventing and controlling mountain flood disasters. It integrates multiple functions such as information collection, transmission, analysis, and early warning, achieving timely and accurate transmission of early warning information. This enables potential disaster stricken areas to take timely measures and minimize personnel and property losses.
3、 System composition
3.1 System Topology Diagram
The mountain flood disaster monitoring and early warning system mainly includes the following parts: automatic collection system for rainfall and water level in disaster prone areas, data transmission system and emergency communication network for natural disaster prevention, mountain flood disaster forecasting and decision support system based on GIS electronic maps, disaster warning release platform and emergency response.
3.2 Hardware System
4、 System features
♦ Industry certification: Passed industry standard tests such as the Hydrological Remote Sensing Terminal (HCRZ-R02) "GB/T 28181-2016 Video Transmission Protocol" and the Special Area Hydrological/Water Resources Data Security Collection System RTU Additional Testing;
♦ Ultra low power consumption: The core equipment uses GPRS low-power measurement and control terminals, with an average working current of only 10mA, greatly reducing the cost and construction difficulty of solar powered equipment.
♦ Strong compatibility: compatible with various types of water level, rainfall and other measuring instruments or sensors.
♦ Stable performance: Multiple measures such as lightning protection, rain resistance, moisture resistance, and input signal isolation are adopted to ensure the safety and reliability of the equipment.
♦ Easy maintenance: can remotely set working parameters and upgrade programs.
♦ Flexible access: It can be connected to our company's supporting mountain flood disaster monitoring and early warning system software platform, as well as configuration software or user developed software systems.
♦ Real time data collection: Real time rainfall information is collected and sent to the mountain flood business platform, allowing flood control personnel to obtain information in a timely manner and providing support for mountain flood warning decisions.
♦ Automatic alarm function: Real time monitoring of rainwater data. When the monitoring data exceeds the threshold, a simple rainfall alarm will sound a warning bell to directly alert people and increase the time for people to transfer.
♦ Strong stability: The early warning system uses multiple communication methods to integrate and operate normally even in the event of network or power outages, ensuring uninterrupted monitoring of flash floods and safeguarding the safety of people's lives and property.
♦ Diversified warning methods: manual warning, sound warning, SMS warning, broadcast warning, comprehensive warning methods to convey warning information to everyone.
5、 Application effect
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