Intelligent monitoring and control method for coagulation process based on multisource information fusion technology

A multi-source information fusion and intelligent monitoring technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems that cannot fully reflect raw water

Inactive Publication Date: 2005-10-19
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

It overcomes the defect that a single sensor can only provide partial information of the coagulation process and cannot fully reflect the changes in raw water and coagulation reac

Method used

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  • Intelligent monitoring and control method for coagulation process based on multisource information fusion technology
  • Intelligent monitoring and control method for coagulation process based on multisource information fusion technology

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specific Embodiment approach 1

[0005] Specific embodiment one: this embodiment is made up of the following steps: one, utilize the turbidity sensor 1 that is arranged on raw water, pH value sensor 2, conductivity sensor 3, temperature sensor 4 and flow sensor 5 to obtain respectively the corresponding water quality parameter Signals I1, I2, I3, I4 and I5; step 2, input the corresponding signals I1, I2, I3, I4 and I5 representing water quality parameters into the space-time fusion system 6 using fuzzy neural network algorithm, and input the output value α to the comparator The positive input terminal of 10 is used as the setting value of the single-factor coagulation intelligent control system; three, the corresponding operation is performed in the controller 7 of the single-factor coagulation intelligent control system, and the dosage of coagulant is output to the mixing The coagulant dosing pump 9, and the single-factor detector 8 installed in the coagulation reaction tank feeds back the detected current co...

specific Embodiment approach 2

[0006] Specific implementation mode two: the following combination figure 2 This embodiment will be specifically described. The difference between this embodiment and Embodiment 1 is that step 2 in Embodiment 1 consists of the following steps: 201. Carry out data-level fusion of the input signals I1, I2, I3, I4 and I5 respectively, that is, obtain the The detection value and the rate of change of the detection value of each sensor are calculated, and the continuous output data of each sensor is analyzed for abnormal changes to determine whether the data is reliable, so as to determine whether the instrument has problems such as failure, noise interference, and signal loss; 202. Carry out feature-level fusion of the data that has been fused at the data level, specifically, use a fuzzy neural network with a 5-layer network structure of two data inputs and one data output to convert the information of different metrics into Consistency description of the degree of coagulation i...

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Abstract

The present invention discloses the real-time optimized control method of intelligent monitoring and coagulating agent throwing in water treatment. The intelligent monitoring and controlling method of coagulation process based on multisource information fusion technology consists of the following steps: obtaining water quality parameter signals I1-I5 with turbidity sensor, pH sensor, conductivity sensor, temperature sensor and flow rate sensor; inputting I1-I5 to time-space fusion system in fuzzy nerve network algorithm and outputting the result to comparator; calculating in the controller of single factor intelligent coagulation controlling system, feeding the coagulating agent throwing amount to the throwing pump, and feeding the current coagulation reaction degree value with the single factor detecting instrument to the comparator; and monitoring intelligently the water quality parameters and variations for comprehensive high quality control of the coagulation process.

Description

technology field; [0001] The invention relates to a method for intelligently monitoring the coagulation dosing process and realizing real-time optimal control of coagulant dosing during the coagulation process of water treatment dosing. Background technique: [0002] The coagulation and dosing process of water treatment is a key link that affects the quality of treated water, and has always been the focus of water treatment research. With the development of computer technology and the improvement of the automation of water plant operation, the automatic control of coagulation and dosing has been realized to a certain extent. However, due to the complex physical and chemical reaction mechanism in the water treatment process, the time-varying nature of water quality parameters in the reaction process, the time-lag of the reaction, and many factors affecting the dosage of coagulant, it is still very difficult to determine and control the dosage of coagulant. difficulty. At pr...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 白桦马军
Owner HARBIN INST OF TECH
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