Abstract: The invention relates to a method for monitoring and analyzing a production process. In the method, a large number of variables are measured from the process, with the aid of these variables, fingerprints according to a good and a poor process situation, relative to runnability, are defined in several sub-processes and are then stored in a memory, the stored fingerprints are compared with fingerprints obtained in a normal process situation, on the basis of the comparison, the difference, displayed graphically to the user, between the recorded good situation and the momentary process situation is defined.

Abstract: The invention relates to a method for monitoring and analyzing a production process. In the method, a large number of variables are measured from the process, with the aid of these variables, fingerprints according to a good process situation, relative to runnability, are defined in several sub-processes and are then stored in a memory, the stored fingerprints are compared with fingerprints obtained in a normal process situation, on the basis of the comparison, an index of the difference, displayed graphically to the user, between the recorded good situation and the momentary process situation is defined, and a runnability index, depicting the runnability of the entire paper machine and a quality index depicting the quality of the paper produced, are formed from these indices.

Abstract: A method for analyzing a papermaking process is disclosed in which several electrochemical quantities are measured from at least one liquid flow and fingerprints according to good process situations are determined. The electrochemical measurements are carried out independently of each other using at least three electrode series, each including at least three electrodes. In addition, at least one odor measurement is used from the gases that are emitted from the liquid flow into the gas space over the free liquid surface.

Abstract: The invention relates to a method for monitoring and analyzing a production process. In the method, a large number of variables are measured from the process, with the aid of these variables, fingerprints according to a good process situation, relative to runnability, are defined in several sub-processes and are then stored in a memory, the stored fingerprints are compared with fingerprints obtained in a normal process situation, on the basis of the comparison, an index of the difference, displayed graphically to the user, between the recorded good situation and the momentary process situation is defined, and a runnability index, depicting the runnability of the entire paper machine and a quality index depicting the quality of the paper produced, are formed from these indices.

Abstract: The invention relates to a method for monitoring and analyzing a production process. In the method, a large number of variables are measured from the process, with the aid of these variables, fingerprints according to a good and a poor process situation, relative to runnability, are defined in several sub-processes and are then stored in a memory, the stored fingerprints are compared with fingerprints obtained in a normal process situation, on the basis of the comparison, the difference, displayed graphically to the user, between the recorded good situation and the momentary process situation is defined.

Abstract: The invention relates to a method in a paper or pulp process to control the chemical state of the pulp and circulation water system. In the process one or more raw-material components (PROCESS WATER, TMP, PULP, REJECT) diluted in liquid, possible fillers, and one or more additives are mixed to form stock. In the method, the electrochemical state of at least one raw-material component (PROCESS WATER, TMP, PULP, REJECT) and/or the stock is regulated, without the regulation substantially affecting the pH values of the raw-material components (PROCESS WATER, TMP, PULP, REJECT) and/or of the stock.

Abstract: A method for monitoring and analyzing a paper manufacturing process, is disclosed in which a large number of quantities (xi, t) are measured from the process, the measured quantities (xi, t) are entered as an input vector ({overscore (X)}, t) into a neural network, which, in response to the input vector, produces an output vector ({overscore (Y)}, t) as a continuous quantity, at least one fingerprint consistent with a good process situation in regard of runnability, i.e. an optimal output vector ({overscore (Y)}o, t) is determined and stored in memory, the stored fingerprints and fingerprints or output vectors obtained in a normal process situation are compared substantially in real time, and based on the comparison, a difference to be presented in a graphic form to the user is determined.

Abstract: The invention concerns a method for monitoring and analyzing a paper manufacturing process, in which method a large number of quantities (xi, t) are measured from the process, the measured quantities (xi, t) are entered as an input vector ({overscore (X)}, t) into a neural network, which, in response to the input vector, produces an output vector ({overscore (Y)}, t) as a continuous quantity, at least one fingerprint consistent with a good process situation in regard of runnability, i.e. an optimal output vector ({overscore (Y)}o, t) is determined and stored in memory, the stored fingerprints and fingerprints or output vectors obtained in a normal process situation are compared substantially in real time, based on the comparison, a difference to be presented in a graphic form to the user is determined.