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Groundwater Monitoring and Management System Solution System Overview The groundwater level monitoring and management system is not accurate for the original manual observation, and the lack of measurement, missed measurement and time-effectiveness of the daily measurement monthly report can not meet the rapid economic and social development of water resources dynamic information The actual needs of the use of modern communications, computers, digital networks and electronic technology to achieve the dynamic measurement of water resources information automatically. The system is the real-time monitoring of groundwater level, and the collected groundwater level data is analyzed and counted, and a corresponding report is formed. With the characteristics of high technological content, high precision, stability and timeliness, it has achieved no-collection of groundwater monitoring data, automatic measurement and reporting, improved work efficiency and office automation level, and it also facilitates the water administration department to accurately and timely grasp water resources. The real-time situation provides a reliable scientific basis for the allocation of water resources. The application of this system will enable water resources management and monitoring to enter a fast, accurate and efficient track, which will have tremendous economic and social benefits. Work tasks (1) Collect and analyze the hydrology, meteorology, geology, hydrogeology and existing hydrogeological investigation and research data of the project area, and the results of water resources development and utilization; (2) Carry out on-the-spot surveys and surveys to identify surface water and groundwater in the project area Water environment conditions, obtain monitoring background values; (3) determine the monitoring object, determine the cross-section of agricultural irrigation channel monitoring water; determine the location and quantity of water-recovery wells, recharge wells that need to be monitored, establish monitoring sites, and install and install monitoring system terminals. Hardware (including data terminal, water level sensor, water temperature sensor, water sample collection equipment); (4) Install the monitoring system center room, set up the server, establish and test the wireless connection between each monitoring terminal and the central server; and for the water administration The competent authorities shall reserve data transmission interfaces in order to realize the water administrative department's management of water resources and limit the access of users with different authorizations to the state of the water environment in the project area; (5) Implementation of on-line automatic monitoring of water quantity, water level and water temperature; Monitoring shall be conducted according to the wet season, the flat water period, and the dry season for sampling and analysis; (6) Realize the alarm function of the monitoring system. When the water level and water temperature are abnormal, the water quality is significantly deteriorated, and the amount of recharged water is not in place, the system will automatically alert the water user to handle the problem. (7) Completion of a hydrological year monitoring system trial operation, comprehensive analysis and research on the acquired water quantity, water level, water temperature, water quality, etc., and preparation of the "community water resources monitoring system construction report" and "community water environment annual evaluation report" . System topology structure The entire system monitors the water volume, water quality, temperature and other information of the project area. The water volume and water level information are transmitted to the center through the GPRS communication module for analysis and management by related personnel. The water quality monitoring is performed through on-site sampling for laboratory monitoring. The obtained water quality information is entered into the management center database through manual entry. The network topology architecture is shown in Figure 3-1. Figure 3-1 Network topology structure diagram Monitoring point structure The online water monitoring system for automatic monitoring of surface water in the system has two water monitoring points (one in and one out) installed in the project area. After the system is built, it can realize the self-report of water quantity telemetry. Real-time monitoring of water changes, and the real-time monitoring of the data transmitted to the monitoring center station. The water quantity on-line monitoring system is mainly composed of the following parts: open channel wave flowmeter, telemetry terminal, GPRS communication module, lightning arrester, power supply system, etc. For the structure diagram, see 4-1 Structure of surface water automatic monitoring point. Figure 4-1 Structure of automatic monitoring point for surface water System Function (1) Data receiving data transmission The working system has an important influence on the realization of system functions. The current automatic measurement and reporting system usually uses self-reporting, query response, self-report/response. Compatible three working methods. The work to be done by the data receiving subsystem is to synchronize the monitoring data to the system according to the user's operation and prepare for the next data application. (2) Data application Through the wireless transmission network, the remote water, water level, and water temperature data are collected, and the collected results are stored in a database. The software provides data query/statistical reports, and collects the results to form a curve analysis chart. 1 build a remote data acquisition system framework. 2 Build the framework of the central service program. According to the protocol for collecting the result data, the collected result data is decomposed and stored in the SQL database. Provide database backup and restore functions accordingly. 3 Reports Provides data reports that have been stored for a period of time based on the data that has already been stored. The report provides printing and sending to Excel. 4 Graphical analysis For a certain period of time, the water volume, water level, and water temperature form a change curve so that the user can analyze changes. (3) Monitoring and early warning Different monitoring and warning thresholds are set for the monitoring data of different survey areas. When the survey data exceeds the allowable threshold, combined with GIS technology, the alarm position is highlighted on the map, and an alarm sound is emitted. The mouse moves to the Highlight points, you can view the monitoring of the warning over the value, and access to relevant information. (4) System management users need to undergo strict certification before they can obtain legal authorization to use the system. The system reserves a special interface for the water administrative department. In order to ensure the security of the system, the system user must use the authentication to use the system and the user operates the logging. After an authorized user logs in to the system, he or she can only see the functions that he can use, and the information and content within the scope of the authority, and perform various function operations within the scope of the authority defined by the system. Http://
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