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1 Overview
In the comprehensive water conservancy informatization system, the application system takes water resources management, rural water conservancy information management and other eight key projects proposed by the Ministry of Water Resources as the core, serving various water conservancy business management; information infrastructure not only includes the existence of water conservancy application systems. The network hardware platform also includes the construction of water conservancy basic information collection point and water conservancy communication backbone network. my country’s water conservancy informatization is still basically at the stage of complete infrastructure and preliminary construction of business applications. In order to speed up the process of water conservancy industry informatization, it is necessary to use high-tech technologies more extensively and effectively, combined with the business characteristics of the water conservancy industry. Networking related technologies.
Sensors and network technologies related to the Internet of Things are not completely new technologies, and the water conservancy industry has been using various automated or semi-automated information collection a long time ago because of its high safety requirements, large space span, and many field operations. Monitoring equipment collects rainfall, water level, water volume, water quality and other information in real time, and transmits and collects it through wireless network and wired network, so as to be used in flood control and drought resistance, water resources management and other business management.
2 Datang Software Water Conservancy Internet of Things Solution
Based on the development of informatization in the water conservancy industry, Datang Software combines the company’s own technical advantages and water conservancy industry experience to provide comprehensive IoT solutions for the water conservancy industry. By providing irrigation area information management system, water resources management system, water conservancy communication and automation system, etc., real-time information collection, transmission, processing and application of hydrology, water quality, gates, etc., effectively improve the comprehensive ability and management level of water conservancy industry management , To realize the transition to dynamic management, fine management, quantitative management and scientific management. As information collection points such as hydrology and water quality are generally located in remote locations and are far apart from each other, the collected information includes data information and video monitoring information. Therefore, it is necessary to adopt network, optical fiber communication, wireless communication and other technologies to rationally deploy and construct water conservancy project informatization Transmission and storage environment. Through automatic collection, processing, analysis and calculation of various basic information, automatic measurement, calculation, adjustment and control of water supply engineering facilities and water sources, so as to achieve planned water supply and optimal allocation of water resources, so that water resources can be used more effectively .
Datang’s water resources management system solution uses modern communication means to realize real-time emergency response, realize comprehensively perceived real-time water quality monitoring and water resource business management. The main business of water resources management includes: organizing the division of water function zones and reviewing the pollution holding capacity of rivers, lakes and reservoirs; guiding the monitoring of the water volume and quality of rivers, lakes, reservoirs, and groundwater; guiding the management of the installation of sewage outlets in the river, and proposed Opinions on limiting the total amount of pollutant discharge and supervise the implementation; organize the implementation of a water resource fee collection system and a water extraction permit system, be responsible for the approval of water extraction permits, and supervise the collection and use of water resources fees. In order to achieve these business management, real-time monitoring and collection of water resources information is required. The monitoring elements include: video monitoring of key nodes in the region, real-time monitoring of water quality, real-time monitoring of water flow and water level, key monitoring and analysis of excessive harmful components, and water quality of water supply Alarm when important indicators exceed the standard.
Figure 1 shows the architecture of Datang’s water resources management system.
Figure 1 Datang Water Resources Management System Solution Architecture
Datang’s water resources management system solution has the advantages of simple structure, strong adaptability and high reliability on the basis of comprehensive perception. The solution uses flow monitoring equipment, water quality testing equipment, and video monitoring equipment to collect water flow, water quality, video information, etc. in real time, report to the integrated information collector with standard industrial electrical signals, and connect to China Mobile’s TD-SCDMA The internet. The comprehensive information collector uses multiple A/D multiplexed sensor acquisition channels, can be connected with multiple analog and digital sensor probes, provides water quality detector protocol conversion and data conversion, and provides video analog signal conversion data signal (H.264 ), finally the video signal, water quality monitoring signal and water quantity monitoring signal are combined and uploaded. In order to ensure the reliable operation of the equipment, it is necessary to provide a complete outdoor environment adaptation design. For example, the camera and the water quality detector need to be installed in the field environment, and the rest of the equipment is installed in the outdoor equipment box. The cabinet design should fully consider factors such as moisture-proof, rain-proof, lightning-proof, high and low temperature working environment. In the mature area of the power supply system, the power collection can be directly drawn from the power distribution room, and only need to lay the power cable for access; in the area without the power supply system, the solar panel is used for power supply, so that the service life is long, the performance is stable, and the maintenance cost is Lower.
Datang’s water resources management system solution provides efficient and economical integrated signal transmission through the TD-SCDMA network. Through the TD-SCDMA gateway, the program adopts a point-to-multipoint approach to establish a wireless network covering the monitoring field, and installs a remote video monitoring terminal with a built-in TD-SCDMA wireless module at the remote monitoring point. TD-SCDMA has high spectrum utilization, strong flexibility, stable system performance, good compatibility with traditional systems, supports switching functions with traditional systems, and supports multiple communication interfaces (TD-SCDMA also meets Iub, A, Gb, Iu , Iur multiple interface requirements), and support multi-carrier direct spread spectrum system at the same time. This solution has the characteristics of long transmission distance, low delay (very critical for video applications), low equipment cost, and ability to improve remote video management capabilities. At the same time, the TD-SCDMA module adopts the domain name resolution service of the dynamic IP address, which can actively search for the domain name of the main control room monitoring server set in the remote video monitoring terminal, saving IP addresses.
Datang water resources management system solutions adopt advanced and practical technical architecture and component-based design and development models to build water resources management applications with comprehensive business coverage and strong scalability. The application of water resources management focuses on the business of water resources management, based on the monitoring of the main links of water resources development and utilization, based on the water conservancy information network system, and the water resources business application system as the core, to build water resources at all levels in the provinces and cities. The information network of the management organization, the water resources data management center, the business platform for water resources management work and the release window of water resources information, so that the responsibilities of the water resources management department can be performed more effectively, and the optimal allocation and efficiency of water resources can be realized. The goal of utilization and scientific protection. Datang’s water resources management system solution is shown in Figure 2.
Figure 2 Datang Water Resources Management System Solution
3 main functions of the system
Integrated business management of water resources. Realize the management of water resources demonstration and management, water intake permit management, planned water use and water conservation management, water function area management, water source management, river discharge management, water resource allocation management, water resource planning management, water resources information statistics and release, The ten major water resources business data and business processes, such as water rights conversion and sand reduction and water exchange, are centrally managed to improve the efficiency of daily water resources management.
Water resource fee collection and management. Realize the process from the collection, analysis, error correction, accounting processing of water volume data to the final account write-off processing. The system supports rate customization according to the type and purpose of water use, provides progressive increase and billing processing rules for over-quota and over-planned water use, flexibly sets preferential policies, and provides management of arrears and reminders.
Water resources information monitoring. Provide users with the collection and management functions of water resources dynamic information. The system provides information monitoring and statistical analysis on the water intake of the water drawing unit, the return of water in the irrigation area, the main control section flow of large rivers, water function areas, water sources, sewage outlets and over-exploitation areas, etc., and can be in the form of maps Display and alert on the dynamic information of water resources.
Comprehensive maintenance management. Provide users with a simple and convenient system management and maintenance interface.
Water resources business information release. Publish the water resources business data that the public cares about on the Internet, and realize the data submission of upper and lower management departments.
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