Water supply scheduling system based on GPRS network

Abstract

The invention discloses a water supply scheduling system based on a GPRS network. The water supply scheduling system is formed by a water supply scheduling monitoring system, the GPRS network and a data center, wherein the GPRS network and the data center are successively connected with the water supply scheduling monitoring system. The system has the following advantages: 1. reliability is high; 2. instantaneity is strong; 3. a collecting meter reading range is wide; 4. system construction costs are low; 5. system operation costs are low; 6. a system transmission capacity is large.

Description

technical field [0001] The invention relates to a water supply system, specifically, a water supply scheduling system based on a GPRS network. Background technique [0002] Urban water supply dispatching requires the management of various water plants, including water company control centers, water plant sub-control centers, pipe network pressurization stations, and water source monitoring stations. The urban water supply dispatching system generally includes: water company control center, multiple water plant sub-control centers, multiple water plant monitoring sub-stations, multiple water source well monitoring stations, multiple pipe network pressurization stations and multiple pipe network pressure measurement stations . [0003] At present, the data communication used in the tap water supply dispatching and monitoring system can be simply divided into two categories: wired and wireless. Among them, wired communication mainly includes erecting optical cables, cables or ...

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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 convenient for large-scale use

[0007] In the existing 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. However, 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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