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    • 6. 发明专利
    • IDENTIFYING/CONTROLLING METHOD FOR CONTROLLED SYSTEM
    • JPH0736505A
    • 1995-02-07
    • JP17956893
    • 1993-07-21
    • NIPPON KOKAN KK
    • SEKIGUCHI ISAOSHIRAI MASAAKI
    • G05B13/02G06F15/18G06G7/60G06N3/00
    • PURPOSE:To identify and control a controlled system in a short time and by means of a small number of storage areas by using a neural netrork when the controlled system is nonlinear or a parameter varies in a control operation mode. CONSTITUTION:A controlled system 21 inputs a manipulated variable (u) and outputs the output value y1, and a controlled system 11 inputs the output value y2 and the disturbance (w) and output the output value y1. An NN model weight control part 13 output the value y1, the target value r1 and the weight correction value (e) of a model 1. An NN model 12 inputs the value (e) and outputs an estimated variable (f) of the value y1. The part 13 inputs the value y2 and the target value r2 and outputs the weight correction value (c) of an NN model 2. An NN model 22 inputs the value (c) and the variable (u) and outputs an estimated variable (g) of the value y2. An NN controller weight control part 33 inputs the value (g) and outputs the controller weight correction value (h). Then an NN controller 32 inputs the value y1 and y2 and the disturbance (w) and outputs the variable (u) to perform the control so that the value y1 and y2 are equal to the value r1 and r2 respectively.
    • 7. 发明专利
    • METHOD FOR CONTROLLING FINISHING TEMPERATURE IN CONTINUOUS HOT ROLLING
    • JPH08252624A
    • 1996-10-01
    • JP5692395
    • 1995-03-16
    • NIPPON KOKAN KK
    • SEKIGUCHI ISAO
    • B21B45/02B21B37/00B21B37/76G05B11/42
    • PURPOSE: To make a metallic strip a desired finishing temp. over its entire length by correcting the target temp. which is set as the temp. on the outlet side of the rolling mill in accordance with variation in the speed of the metallic strip on the outlet side of the rolling mill in continuous hot rolling. CONSTITUTION: In the continuous hot rolling, the target temp. of the metallic strip on the outlet side of each rolling mill is set. This target temp. is corrected in accordance with the variation of the speed of the metallic strip on the outlet side of the rolling mill. For example, deviation between the temp. on the outlet side of finishing mill which is measured with a finish thermometer 37 and the target temp. is calculated with an arithmetic unit 43 for controlled variables and the manipulated variable of flow rate or pressure of nozzles 11-16 for cooling spray between respective stands of the finishing mill is decided with the arithmetic unit 46 based on the determined deviation. The increment of speed is taken into consideration so that the temp. of the finishing thermometer 37 becomes the target temp., control is made to be highly accurate by deceleration compensation. In this way, the temp. in the longitudinal direction of a steel strip is made uniform, good material is obtained and thickness deviation in the tail end part and defective pass of the strip due to low temp. are suppressed.
    • 8. 发明专利
    • VIBRATION RESTRICTING METHOD FOR OVERHEAD CRANE
    • JPH06336394A
    • 1994-12-06
    • JP14559893
    • 1993-05-25
    • NIPPON KOKAN KK
    • SHIRAI MASAAKISEKIGUCHI ISAO
    • B66C13/06B66C15/00F16F15/02
    • PURPOSE:To restrict vibration in a higher harmonics mode by providing an active type dynamic vibration reducer and a vibration detector on a movable carriage provided with a lifting mechanism which moved on a girder, and controlling the dynamic vibration reducer based on detection values of vibration detected by the vibration detector. CONSTITUTION:A movable carriage (crab) 20 having a hoisting mechanism 22 to hoist a suspended load 40 through a wire 41 which moves on a girder 10 is provided with an active type dynamic vibration reducer 3 comprising a load mass screwed with a ball screw 32 rotated by a servo motor 31, and an acceleration detector 21 as a vibration detector. In performing inching operation or the like in hoisting the suspended load, vibration acceleration of the girder 10 composing a main vibration system is detected indirectly by the acceleration detector 21, and a speed signal is obtained by an integrator 36 based on its detection signal. This speed signal is sent to a DC amplifier 35, and an amplified signal is applied through a servo driver 34 to the dynamic vibration reducer 3 for driving to generate inertial force in accordance with a vibration speed.