Water supply analysis, control, adjustment and monitoring system

Abstract

The invention discloses a water supply analysis, control, adjustment and monitoring system comprising pipe network monitoring points, a monitoring center, a GPRS transparent data transmission terminal, a GSM data transmission network, and a water source well remote measurement and control terminal. The pipe network monitoring points acquire water supply data through PLC data acquisition modules. The pipe network monitoring points are connected with the GPRS transparent data transmission terminal through an RS485 interface, and are connected with a GSM network through the GPRS transparent data transmission terminal. The monitoring center is configured with a fixed IP address, and is connected with a GPRS network through a DDN special line. The water source well remote measurement and control terminal is arranged on a water resource well water pump and on a water supply pipe network in a water supply site, and is connected with the server of the monitoring center via the GPRS network. Through the monitoring system of the invention, wireless data transmission of the pipe network monitoring points is realized, and remote instrument and equipment online control is realized. The monitoring system has the advantages of good real-time response and processing capability, short cycle, low cost, wide coverage, high data transmission rate, and large transmission capacity.

Description

technical field [0001] The invention relates to the field of urban water supply monitoring, in particular to a water supply analysis, control, regulation, monitoring and monitoring system. Background technique [0002] The main purpose of the urban water supply dispatching and monitoring system is to solve the data collection and monitoring of the water supply company's monitoring points in all links of water supply. The system consists of a monitoring center and various water source monitoring points. The data acquisition terminal (RTU or PLC) of each water source monitoring point can monitor and collect various data such as water level, pressure, flow, and water quality for analysis and decision-making by the control center and relevant departments. use, improve work efficiency, ensure the quality of water supply, and meet the needs of increasing water consumption. [0003] Urban water supply dispatching requires the management of various water plants, including water com...

AI Technical Summary

Problems solved by technology

[0006] In the urban water supply dispatching and monitoring system, due to the wide distribution, large number, and long distances of the monitoring points of each pipe network, and some points are still remote, it is difficult and impractical to erect optical cables and lay cables, so rent a dedicated telephone from the telecommunications department It is necessary to apply for a lot of telephone lines, and some monitoring points are difficult to reach. Moreover, when using telephone lines, it is necessary to wait for a long dial-up process, which is slow and has high operating costs. In short, the monitoring system adopts wired communication. The construction period is long and the work is difficult Large, high operating costs, not easy to use on a large scale; in contrast, wireless communication is very flexible, it has the advantages of less investment, short construction period, simple operation and maintenance, and high cost performance

In the monitoring system, wireless communication methods mainly include: ultrashort wave (230MHz) wireless data transmission, spread spectrum, satellite communication, GSM digital cellular communication system, etc. Among them, satellite communication is only used in some special fields due to high communication costs, and has not been used. It can be popularized; although the spread spectrum communication technology has a high rate, it can only be transmitted within the line of sight, and its application is also limited.

The use of ultra-short wave digital transmission stations as the transmission channel has the advantages of flexible networking, easy expansion, convenient maintenance, and low operating costs. However, since the system works at 230MHz and mostly uses ordinary indirect modulation digital transmission stations, this makes the system susceptible to external interference. , low communication rate, high bit error rate, small amount of data transmission, small signal coverage, etc.

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