Rainfall Monitoring System Overview China's terrain is complex and there are many mountainous areas. The annual loss from floods, landslides, and landslides caused by rainfall during the flood season accounts for about half of the losses caused by natural disasters. The flash flood disasters are characterized by sudden, prone, frequent, destructive and defensive difficulties. Once they occur, they will cause devastating disasters in some areas. The establishment of a flash flood warning system is an important measure for the prevention and control of such natural disasters. This system is used. It can ensure that disaster relief work is carried out in a timely and orderly manner under the guidance of various competent authorities, minimize the loss of people and property, and reduce the impact of such natural disasters on society and economy.
The system constitutes this subsystem as the basis for the rainfall warning system. The main function is to monitor the rainfall, water level, etc. at each major monitoring point in the area where it is collected. The equipment is mainly configured by a rain gauge, K23A rainfall station RTU, water level gauge, solar panels, and batteries. Such components, mainly composed of front-end automatic monitoring of water level, rainfall stations, and monitoring center platform software information collection subsystem and information query subsystem.
I. Automatic monitoring of the functional design of rainfall stations:
1. The function of the rain station is mainly realized by the K23A professional rainfall monitoring RTU. The sampling interval can be set. The sampling interval can be automatically set according to the rain intensity, and the rainwater level data can be automatically collected regularly or in real time.
2. Realize the transmission and receiving transmission functions of GPRS, GSM and other modes, support multi-center transmission and automatic switching of active and standby channels.
3, can be on-site or remote control, set parameters, change the path, read the data.
4, can store raw water level data of not less than one year, can accept the center management, realize two-way communication with the center, support remote diagnosis, remote setting, remote upgrade and so on.
5, with a regular self-test sending, automatic reset crash, site set, power-down data protection, real-time clock calibration, intuitive field display and device testing and other functions, support dormancy wake-up work, can work locally and remotely set the working method, data Submit frequency and so on.
Automatic monitoring of rainfall station main technical parameters:
1, Diaoyukou diameter: Φ200mm, sharp edges 40 ~ 45 °.
2, resolution: 0.1mm.
3, rainfall intensity measurement range: 0.01 ~ 8mm/min (mm/min).
4, measurement accuracy (in the range of 0.01 ~ 8mm/min rain intensity): precipitation <10mm; measurement error: ± 0.2mm; precipitation ≥ 10mm; measurement error: ± (0.2mm + 1% FS).
Second, monitoring center platform software information collection subsystem and information query subsystem function design
1. Real-time receiving rain data and working condition information of automatic monitoring station; remote control function for automatic monitoring station;
3, real-time processing of received data information, and classified into the database;
4. Inquire, search and maintain all kinds of basic information and provide query and retrieval in WEBGIS, forms and graphics, etc.
5, manual data entry function;
6, the results of the query using forms, graphics, etc. for display;
7. The scope and content of the information query can be customized and have powerful information output and presentation functions. The display mode can be selected by the user.
8. Information about the integration information can be divided into periods, such as: the query of year, month, day and day, and the query of statistical values;
9, has the function of generating various statistical reports and printing functions.
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The system constitutes this subsystem as the basis for the rainfall warning system. The main function is to monitor the rainfall, water level, etc. at each major monitoring point in the area where it is collected. The equipment is mainly configured by a rain gauge, K23A rainfall station RTU, water level gauge, solar panels, and batteries. Such components, mainly composed of front-end automatic monitoring of water level, rainfall stations, and monitoring center platform software information collection subsystem and information query subsystem.
I. Automatic monitoring of the functional design of rainfall stations:
1. The function of the rain station is mainly realized by the K23A professional rainfall monitoring RTU. The sampling interval can be set. The sampling interval can be automatically set according to the rain intensity, and the rainwater level data can be automatically collected regularly or in real time.
2. Realize the transmission and receiving transmission functions of GPRS, GSM and other modes, support multi-center transmission and automatic switching of active and standby channels.
3, can be on-site or remote control, set parameters, change the path, read the data.
4, can store raw water level data of not less than one year, can accept the center management, realize two-way communication with the center, support remote diagnosis, remote setting, remote upgrade and so on.
5, with a regular self-test sending, automatic reset crash, site set, power-down data protection, real-time clock calibration, intuitive field display and device testing and other functions, support dormancy wake-up work, can work locally and remotely set the working method, data Submit frequency and so on.
Automatic monitoring of rainfall station main technical parameters:
1, Diaoyukou diameter: Φ200mm, sharp edges 40 ~ 45 °.
2, resolution: 0.1mm.
3, rainfall intensity measurement range: 0.01 ~ 8mm/min (mm/min).
4, measurement accuracy (in the range of 0.01 ~ 8mm/min rain intensity): precipitation <10mm; measurement error: ± 0.2mm; precipitation ≥ 10mm; measurement error: ± (0.2mm + 1% FS).
Second, monitoring center platform software information collection subsystem and information query subsystem function design
1. Real-time receiving rain data and working condition information of automatic monitoring station; remote control function for automatic monitoring station;
3, real-time processing of received data information, and classified into the database;
4. Inquire, search and maintain all kinds of basic information and provide query and retrieval in WEBGIS, forms and graphics, etc.
5, manual data entry function;
6, the results of the query using forms, graphics, etc. for display;
7. The scope and content of the information query can be customized and have powerful information output and presentation functions. The display mode can be selected by the user.
8. Information about the integration information can be divided into periods, such as: the query of year, month, day and day, and the query of statistical values;
9, has the function of generating various statistical reports and printing functions.
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