ELEVATOR MONITORING APPARATUS
    37.
    发明专利

    公开(公告)号:JPS54157949A

    公开(公告)日:1979-12-13

    申请号:JP6553778

    申请日:1978-05-31

    Applicant: HITACHI LTD

    Abstract: PURPOSE:To accomplish significant improvement in the performance while enabling accurate grasping of the control state of the elevator through the momentary indication of the control state on line. CONSTITUTION:Connection is made between a group control device 1 of controllers and respective units by respective signal lines 2 to 4 so that indication signals b1 to b3 from the controllers 2 to 4 is provided to an indicator 6 through a change-over device 5. A console 7 receives the output signals c1 to c3 of a change-over device interlocked with the change-over device 5 and outputs the respective indication control signals d1 to d3 to the controllers 2 to 4. A plurality of preset indication programsand the preset elevator control signals are memorized according to the indication contents for each elevator control function. Then, when the assignment of the indication contents is made by the console 7, a signal for assigning the indication program involved is picked out of a memory unit to be indicated on a display device 6.

    ELECTRONIC ENGINE CONTROLLER
    38.
    发明专利

    公开(公告)号:JPS5447033A

    公开(公告)日:1979-04-13

    申请号:JP11404777

    申请日:1977-09-21

    Applicant: HITACHI LTD

    Abstract: PURPOSE:To provide an electronic engine controller constituted of relatively simple circuits which controls an engine integratedly by a digital control circuit. CONSTITUTION:After the outputs from an air flow meter 14, a suctioned air sensor 16, a throttle state detector 24, an opening sensor of EGR valve 28, a lambda sensor 80, an exhaust temperature sensor 84, and other operation condition detectors are converted from alternation into direct current, they are computed to find data which controls operation of the EGR valve 28, an injection valve 66, an ignition coil 40, and other actuators. A control circuit 10 is constituted of a memory for storing each of primary function program for controlling an engine and the secondary function program, and an interrupt means which makes the primary function program processed prior to the secondary function program.

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