Abstract: A control system for determining a control function for a control device on the basis of a transfer function of an object to be controlled and for adjusting an operation quantity of an object to be controlled in accordance with the determined control operation function, wherein an control function of a first control device is determined so that a closed-loop transfer function of a control system including the object to be controlled and the first control device coincides with a predetermined first transfer function, an control function of a second control device is determined, in a closed loop control system including the control system and the first control device, so that a transfer function from a disturbance applied to the object to be controlled to a state variable of a point at which the disturbance is applied to the object to be controlled, and a sum signal indicative of a sum of outputs of the first and second control devices is used as an operation quantity of the object to be controlled.

Abstract: A power controller for a vehicle can operate electrical load upon stopping of engine or turning OFF of a key switch, and lowering of remaining capacity of a main battery can be prevented. The control system has a control portion controlling operation of a power generator and an electrical load mounted on an automotive vehicle. The control system also includes remaining capacity measuring means for measuring a remaining capacity of a battery. The control portion drives a predetermined power load when an engine is stopped or a key switch is held OFF, and operation of the power load is stopped when a remaining capacity of the battery measured by the remaining capacity measuring means becomes smaller than a predetermined value.

Abstract: A highly efficient, accurate and high performance modeling support system 100 for modeling a control model necessary for simulating a control object is provided, in which a plurality of data sets stored in a first data base 121 for use in modeling a plurality of control models is divided into a plurality of sub data groups each having least statistical disparity from each other by data divider 114, and stored in a plurality of sub data bases, respectively in second data base 122. Modeling means 115 constructs a control model using data in one of the plurality of sub data groups, which is then evaluated by model evaluator 116 using data in another one of said plurality of sub data groups.

Abstract: A distributed control system has a plurality of controllers, program apparatus, and man-machine systems, which are all interconnected by LAN. The program apparatus is provided with functions corresponding to approval and rejection of operating conditions of the controllers, and a program is allotted to each controller by minimizing the values of the functions. Each controller is structured with the capability of detecting both a load ratio and a traffic quantity of the LAN, on the basis of the detection results, a change of allotment of the program allotted to each controller may be made.

Abstract: In order to control an apparatus, such as a rolling mill, a control device may use a pre-set operation pattern to generate a pre-set command signal, which is then modified. That first modification may be part of a feedback loop in dependence on the variation of a variable operation device of the apparatus, on a plurality of pre-set signals may be combined by fuzzy logic. Then the relationship between the modified pre-set command signal and the variation of the variable operation device is investigated to generate a compensation signal which is used to modify further the pre-set command signal. In a feedback loop, that further modification may compensate for changes in the operating point of the loop, due to changes in the apparatus being controlled. In a fuzzy logic arrangement, the compensation signal may be a further control pattern developed by the control device itself, which is combined with the pre-set patterns by fuzzy logic. The control device may be in the form of a series of modules.

Abstract: A chaotic character evaluating apparatus includes a processor for predicting future variation in sequential data and a processing for determining a degree of accuracy of the prediction, a processor for predicting variation of the sequential data in reverse and a processor for determining a degree of accuracy of the prediction, and a processing for comparing the degrees of accuracy with each other. If the degrees of the accuracy differ from each other, the variation of the sequential data is determined to be attributable to chaos, while when the degrees of accuracy are substantially equal to each other, the variation in the sequential data is determined to be attributable to noise. Further, a control apparatus for generating a control value from a feedback signal output from an object under control and having chaotic components eliminated is realized. Thus, it is possible to easily and accurately determine whether variation in the sequential data is attributable to chaos or noise.

Abstract: The disclosed system comprises a plurality of controlling and calculating devices, each controlling and calculating device has a single common bus that is common to all the controlling and calculating devices and two individual buses, and the respective controlling and calculating devices are connected in series by the respective individual buses, whereby each individual bus is commonly shared by respective two of the plurality of controlling and calculating devices and therefore, input and output circuits to an object system are connected to the individual buses thereby performing the control.

Abstract: A failure diagnosis apparatus for a control system at which plural sensors are provided, comprises a means for extracting correlations among output signals from the predetermined groups of the sensors based on the output signals in the normal operations of the control system by such a means as a quantization method of quantizing a signal space, a means for making up an abnormal degree of the output signals from each predetermined group of the sensors by comparing output signals to be examined from each predetermined group of the sensors and the correlation corresponding to the group of the sensors, and a means for estimating the reliability of each sensor by using the abnormal degrees and for identifying the sensor outputting an abnormal signal.

Abstract: In a neural network having neurons connected in a multi-layer, firstly, input signal sets are sequentially entered to statistically process the outputs of hidden neurons and determine the optimum number of hidden neurons. Secondly, while changing the input signal entered to each input neuron to the maximum change limit, the change of output values of the other input neurons are checked to thereby determine an unnecessary input neuron. Thirdly, the weights between input neurons and hidden neurons are set to be in correspondence with a hyperplane to enable pattern recognition.

Abstract: In order to control an apparatus, such as a rolling mill, a control device may use a pre-set operation pattern to generate a pre-set command signal, which is then modified.That first modification may be part of a feedback loop in set command signal, which is then modified. That first modification may be part of a feedback loop in logic. Then the relationship between the modified pre-set command signal and the variation of the variable operation device is investigated to generate a compensation signal which is used to modify further the pre-set command signal. In a feedback loop, that further modification may compensate for changes in the operating point of the loop, due to changes in the apparatus being controlled. In a fuzzy logic arrangement, the compensation signal may be a further control pattern developed by the control device itself, which is combined with the pre-set patterns by fuzzy logic. The control device may be in the form of a series of modules.

Abstract: A method and an apparatus for measuring traffic flows, or in other words the flows of vehicles, inside and near a crossing. The method and apparatus are capable of extracting vehicles with a high level of accuracy. Overlap of vehicles can be avoided by setting the field of a camera to exclude a range from the inflow portion to the vicinity of center of the crossing but to include a range from the center to the vicinity of the outflow portion of the crossing. Accordingly, accuracy of traffic flow measurement can be improved.

Abstract: A control system is for accelerating stabilization of a chaotic state of a controlled system into a desired periodic state. In the control system, the SOGY algorithm is extended to permit selection of a region on a chaotic attractor as a target, so that the SOGY algorithm can be successfully combined with the OGY algorithm for the purpose of stabilization of the controlled system in the periodic state. Also, the method of nonlinear prediction is introduced so as to secure the effectiveness of the SOGY algorithm. Further, an uncertainty of prediction is taken into consideration so as to eliminate unnecessary control and to improve the effectiveness of the SOGY algorithm.

Abstract: A programmable controller for executing a program having mixed instructions. The programmable controller includes a bit operation memory for storing a mixed instruction inclusive of the mixture of bit operation instructions and word operation instructions in order of execution and a word operation memory for storing the word operation instructions in the mixed instruction in order of execution. A bit operation processor is provided in the programmable controller for outputting a start command for a word operation instruction when a word operation instruction read from the bit operation memory subsequently to the execution of the bit operation instruction has been recognized.

Abstract: A train control system includes an equipment for issuing, to a train under control based on a predetermined train schedule, an operational target to be attained in terms of the aimed position, aimed time and aimed speed. Once a target is issued, a possible run region of the train is determined, and another target may be set within the possible run region such that the train is not subjected to the ATC-based speed limitation or the like, thereby minimizing the cause of delay of the train operation.

Abstract: In order to control an apparatus, such as a rolling mill, a control device may use a pre-set operation pattern to generate a preset command signal, which is then modified. That first modification may be part of a feedback loop in dependence on the variation of a variable operation device of the apparatus, on a plurality of pre-set signals may be combined by fuzzy logic. Then the relationship between the modified pre-set command signal and the variation of the variable operation device is investigated to generate a compensation signal which is used to modify further the pre-set command signal. In a feedback loop, that further modification may compensate for changes in the operating point of the loop, due to changes in the apparatus being controlled. In a fuzzy logic arrangement, the compensation signal may be a further control pattern developed by the control device itself, which is combined with the pre-set patterns by fuzzy logic. The control device may be in the form of a series of modules.

Abstract: A method and an apparatus for controlling an object by giving commands to actuators that control the object to perform desired operations, wherein relationships between respective values of parameters of the model for the controlled object and the input/output states of the model are obtained by learning, the obtained relationships are stored in a memory unit as a result of the learning, parameter values of the model are decided by referring to the learning result stored in the memory unit based on the input/output measured values of the controlled object, and commands are obtained based on the decided parameter values and the obtained commands are given to the actuators.

Abstract: A non-interference control method and device in which an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of the partial control systems has at least one operation quantity and at least one partial control system has more than two operation or control quantities, wherein to the operation quantity in one partial control system is added a compensating element which annuls influences exerted by other partial control systems on said one partial control system, said object to be controlled being controlled on the basis of the relevant compensated operation quantity.

Abstract: A control method for a moving body and facilities is comprised of steps of measuring and recognizing at least one of the states such as the number of a moving body, moving speed and moving direction, and changing the state of facilities which is a goal of the moving body based on the result of the measurement/recognition, or displaying the state of the facility. A control apparatus for a moving body and facilities is comprised of a measuring unit for measuring at least one of the states such as the number of a moving body, moving speed, and moving direction, a memory unit for storing information on the condition of a local area in which the moving body is moving or on the facilities said moving body is heading for; an arithmetic unit for processing information from the measurement unit and memory unit; and an input/output unit for accessing information processed by the arithmetic unit, and displaying the information.

Abstract: A control system for controlling a plurality of control elements, which are effective to control of a given controlled system, is disclosed. In this control system, a characteristic value representing the characteristic of a given controlled system to be controlled is detected, and respective optimum manipulated variables of the plurality of control elements are derived on the basis of the detected characteristic value.

Abstract: A control system for controlling a plurality of control elements, which are effective to control of a given controlled system, is disclosed. In this control system, a characteristic value representing the characteristic of a given controlled system to be controlled is detected, and respective optimum manipulated variables of the plurality of control elements are derived on the basis of the detected characteristic value.