摘要:
An injection control system of a flocculating agent comprises: a flocculating pool (15) into which the inflow liquid flocculating agent (11) is injected and which forms flocs of suspended matters in the liquid; flocculating agent injection means (12) for injecting the flocculating agent into the flocculating pool (15); floc image pickup means (18) for photographing a state of the flocs in the flocculating pool (15) and for converting luminance data of the flocs into an electric signal; image recognizing means (30) for recognizing the shape of floc by binarizing the image signal derived from the floc image pickup means (18) on the basis of a luminance level of each pixel; flocculation state deciding means (80) for calculating a characteristic amount of a diameter distribution of the flocs on the basis of the floc shapes recognized by the image recognizing means (30); and injection amount control means (100) for controlling an amount of the flocculating agent which is injected from the flocculating agent injection means (12) on the basis of the characteristic amount.
摘要:
In order to speed up, and simplify, automated learning of rules by a neural network making use of fuzzy logic, data (120) from a system is analyzed by a teaching data creation means (140). This groups the data into clusters and then selects a representative data item from each group for subsequent analysis. The selected data items are passed to a rule extraction means (180). This investigates relationships between the data items, to derive rules, but eliminates rules which have only an insignificant effect on the system. The result are candidate rules which are stored in a first rule base (200). The candidate rules are then compared with rules in a second rule base (240) to check for duplication and/or contradiction. Only those rules which are not duplicated and not contradictory are stored in the second rule base (240). Hence, when fuzzy inference is used to control the system on the basis of rules in the second rule base (240), only valid rules which provide a significant effect on the system are used.
摘要:
An injection control system of a flocculating agent comprises: a flocculating pool (15) into which the inflow liquid flocculating agent (11) is injected and which forms flocs of suspended matters in the liquid; flocculating agent injection means (12) for injecting the flocculating agent into the flocculating pool (15); floc image pickup means (18) for photographing a state of the flocs in the flocculating pool (15) and for converting luminance data of the flocs into an electric signal; image recognizing means (30) for recognizing the shape of floc by binarizing the image signal derived from the floc image pickup means (18) on the basis of a luminance level of each pixel; flocculation state deciding means (80) for calculating a characteristic amount of a diameter distribution of the flocs on the basis of the floc shapes recognized by the image recognizing means (30); and injection amount control means (100) for controlling an amount of the flocculating agent which is injected from the flocculating agent injection means (12) on the basis of the characteristic amount.
摘要:
This invention discloses a method and a system of making a neuron network model learn the typical past process control results and utilizing this model for the supporting of an operation of a process. The neuron network is given a typical pattern of a plurality of input variables at different points in time as input signals, and is taught corresponding control variables as teaching signals, and untaught input patterns are given to this intelligent neuron network model to have it determine corresponding control variables. A plurality of patterns at predetermined time intervals are preferably used at once as patterns to be taught.
摘要:
A method for extracting as knowledge causal relationships between input variables and an output variable of a neural circuit model, said neural circuit model being of a hierarchical structure constructed of an input layer, at least one hidden layer and an output layer and having performed learning a limited number of times by determining weight factors between mutually-connected neuron element models in different layers of the input layer, hidden layer and output layer, wherein with respect to plural routes extending from a neuron element model, corresponding to a particular input variable, of the input layer to a neuron element model, corresponding to a particular output variable, of the output layer by way of the individual neuron element models of the hidden layer, a product of the weight factors for each of the routes is determined, and the products for the plural routes are summed, whereby the sum is employed as a measure for the determination of the causal relationship between the particular input variable and the particular output variable.
摘要:
A method for extracting as knowledge causal relationships between input variables and an output variable of a neural circuit model, said neural circuit model being of a hierarchical structure constructed of an input layer, at least one hidden layer and an output layer and having performed learning a limited number of times by determining weight factors between mutually-connected neuron element models in different layers of the input layer, hidden layer and output layer, wherein with respect to plural routes extending from a neuron element model, corresponding to a particular input variable, of the input layer to a neuron element model, corresponding to a particular output variable, of the output layer by way of the individual neuron element models of the hidden layer, a product of the weight factors for each of the routes is determined, and the products for the plural routes are summed, whereby the sum is employed as a measure for the determination of the causal relationship between the particular input variable and the particular output variable.