A method and an apparatus for controlling servomechanism by use of a model reference adaptive system in which adjusting parameters so determined that the difference between the outputs from the final control element and the reference model is eliminated are set. An adaptive control input is produced by multiplying the adjusting parameters respectively by an instruction input, load value and load variation value of the final control element and is given to the final control element together with ...

An apparatus for calculating correlation between first and second sets of data which are respectively composed of plural data includes a first transfer apparatus, a second transfer apparatus, and an apparatus for calculating absolute value. The first transfer apparatus comprises at least first and second transfer stages and is adapted to transfer the first set of data in succession from the first transfer stage to the second transfer stage, and the second transfer apparatus comprises at least fi...

A device for monitoring and comparing present, past and ideal performances on an exercise machine senses a preselected set of factors chosen to represent the present performance of the user on the machine. A Processor operates under a predetermined set of user controlled instructions to store the set of performance data for each performance of the user in its memory unit, and compare the present set against a stored set of performance data representing a saved prior performance. It generates an ...

The present invention is a method for identifying a Most-Probable-Point (MPP) in original space obviating the need for a probability transformation, for use in first order/second order reliability analysis. It comprises generating the linear approximation of a limit-state-function, g(x) about the median, mean point, or mode of random variables, x of g(x). g(x) is defined so that g(x)f0 denotes a failure set. The Most-Probable-Point-Locus (MPPL) of g.sub.1, MPPL.sub.1, is constructed by the steps...

A vehicle braking system for automotive vehicles in which a circuit is provided for continually calculating a controllable deceleration figure which is related to the required vehicle velocity reduction over a measured headway spacing and for calculating a non-controllable deceleration constant representing maximum deceleration available for braking action. A signal is generated for effecting vehicle braking when the deceleration figure is equal to or greater than the deceleration constant. A ne...

A size checking apparatus is employed to check sizes or dimensions of a work. The size checking apparatus includes: a constant speed transporting unit for a work; a measuring unit for continuously measuring a distance from a measurement sensor to a measuring position of the work while the work is being transported; a trigger signal generator for sensing that the work has passed and for commencing an acquisition of a measurement value by the measuring unit in response to a trigger signal; a pulse...

A portable position detector and a position management system that are capable of accurately detecting the direction of a walking body even when GPS signals cannot be received (or without reception) and thereby enhancing the accuracy of the dead reckoned position of the walking body. The portable position detector is equipped with a pedometer and a geomagnetic sensor. With the pedometer, the moved distance of a walker is detected by a calculation of "the number of steps.times.the length of a ste...

A digitally controlled acceleration and deceleration system in which the goal velocity applied to the object in the acceleration mode and the deceleration mode changes linearly, instead of the flat goal velocity, thus, the acceleration and/or deceleration applied to the object to be controlled in the feedback loop becomes flat, and the acceleration time and/or deceleration time is reduced. The outputs of the variable frequency pulse generator and the fixed frequency pulse generator are combined ...

A data handling system for an automobile comprises an odometric data generator which provides odometric data corresponding to the travel distance of the automobile. A nonvolatile memory stores total odometric data, an adder receives the odometric data provided from the odometric data generator and the previous total odometric data provided from the nonvolatile memory, and a control circuit controls the writing of data into the nonvolatile memory in accordance with the state of a key switch. The ...

A device for calculating differences includes a difference circuit for generating difference signals .DELTA.x.sub.j =x.sub.j -x.sub.i, .DELTA.y.sub.j =y.sub.j -y.sub.i, and .DELTA.z.sub.j =z.sub.j -z.sub.i between coordinates of i having (x.sub.i, y.sub.i, z.sub.i) coordinate signals and coordinates of j having (x.sub.j, y.sub.j, z.sub.j) coordinate signals in an orthogonal coordinate system. The difference circuit includes an x-axis circuit, responsive to the x.sub.i and x.sub.j signals having ...