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Water treatment project monitoring system based on wireless sensor network

A wireless sensor and monitoring system technology, applied in network topology, wireless communication, comprehensive factory control, etc., can solve the problems of being susceptible to human theft, increasing system maintenance costs, and being easily struck by lightning, reducing costs and development cycles, enhancing Data processing power, flexibility and scalability

Inactive Publication Date: 2011-03-30
哈尔滨云水工大环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional data transmission uses various field buses, which requires construction of field wiring, which is inconvenient to install
Due to the corrosion of chemicals, the bus is aging and short-circuited, which brings great inconvenience to the maintenance of the staff and increases the maintenance cost of the system
In addition, wiring in remote areas is difficult, easily struck by lightning, and easily damaged by factors such as human theft, which will increase the cost of the system and reduce the reliability

Method used

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  • Water treatment project monitoring system based on wireless sensor network
  • Water treatment project monitoring system based on wireless sensor network
  • Water treatment project monitoring system based on wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, the monitoring system of the present invention is composed of a wireless sensor network node 1 and a central control system 2 . The wireless sensor network node 1 as a wireless sensor slave station is composed of a data acquisition module 3 , a data processing and control module 4 , and a communication module 5 . Among them, the data acquisition module 3 uses FPGA as the core processor, and has four sub-modules of digital input, digital output, analog input, and analog output, which can realize the acquisition and output of digital and analog quantities, and communicate with the data processing and control module through the CAN bus 4 Communication; the data processing and control module 4 is the main control unit of each node, using the FPGA of the internally customized Nios II soft-core processor as the control core, responsible for controlling each data acquisition sub-board, and collecting real-time status information of the water plant eq...

Embodiment 2

[0021] The structure block diagram of the data acquisition module is as follows: figure 2 As shown, FPGA9 is used as the control core, and the Nios II soft-core processor is customized in it to control each data acquisition sub-module. A data acquisition board includes four data acquisition sub-modules including a digital input module 10 , a digital output module 11 , an analog input module 12 and an analog output module 13 . Among them, the digital input module 10 and the digital output module 11 are relatively simple, and are only composed of optocoupler 14. The addition of optocoupler 14 can realize the isolation of high-voltage equipment and low-voltage equipment, and prevent high-voltage breakdown from damaging low-voltage equipment and mutual interference. The analog input module 12 is mainly used to collect various analog quantities representing the state of the equipment, such as raw water flow, pH value, temperature, turbidity and so on. In order to realize the acqu...

Embodiment 3

[0023] The overall structural block diagram of the Nios II system is as follows image 3 As shown, the Nios II processor 24 selects the fast NiosII processor for use to achieve faster speed, the JTAG debugging module 25 is used for JTAG connection between the software debugger, and the on-chip memory 26 can be configured as RAM or ROM. Small, running faster, used to debug smaller programs. The SDRAM controller 27 provides an Avalon interface for the FPGA off-chip SDRAM, and processes SDRAM protocol requests. The tri-state bridge 28 connected to the off-chip memory provides a channel for connecting the off-chip memory to the FPGA, and the timer 29 is used as a system clock timer to provide clock interruption. The system adopts two SPI cores 30, one is used to collect the data after AD conversion, and the other is used to control the CAN controller to realize CAN communication. UART31 is used as a common serial communication method for program debugging and data output, and so...

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PUM

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Abstract

The application relates to a water treatment project monitoring system based on a wireless sensor network. As present sewage treatment equipment has limited processing ability to use PLC data and a slow running speed, further improvement in system performance is restricted. The system comprises a central control system (2), which is connected with a group of wireless sensor network nodes (1) and comprises an industrial personal computer (6). The industrial personal computer (6) is connected with a wireless sensor master station (7). The wireless sensor network node comprises a data collecting module (3) which is connected with a data processing and controlling module (4). The data processing and controlling module is connected with a communication module (5). The system is used for monitoring the system of the sewage treatment equipment.

Description

Technical field: [0001] The invention relates to a water treatment engineering monitoring system based on a wireless sensor network. Background technique: [0002] Sewage treatment has the characteristics of complex treatment process, continuous production, multiple collection variables, and many disturbances. The traditional monitoring system uses PLC or embedded processor as the control unit to collect and control the data of each equipment. For example, the utility model "automatic control device for intelligent water treatment system" with patent publication number 200951966 uses PLC as the control core, and installs signal transmission control valves on each device, and PLC is responsible for sending control signals to each device. And the patent publication number is 2511977's utility model "Waterworks water quality multi-parameter on-line measurement and monitoring device", with a single-chip microcomputer as the control core to control the peripheral circuit. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418H04W84/18
CPCY02P90/02
Inventor 刘晓为张海峰鲍立新唐佳禄李建政范宇飞
Owner 哈尔滨云水工大环保科技股份有限公司
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