摘要:
Provided are a group selector 431 configured to select collection groups from multiple subgroups obtained by dividing a memory area in a first storage unit 411b; a collection group assigner 432 configured to assign the selected collection groups to data collection apparatuses 41 to 43 in order to distribute load of data collection; and a schedule generator 433 configured to generate a schedule for reading the data from the first storage unit 411b. Each of the data collection apparatuses 42, 43 includes a schedule generator 443 configured to generate a schedule for reading the data from the first storage unit 411b on the basis of a collection cycle and the number of collection groups assigned to the data collection apparatus 42.
摘要:
A data synchronous reproduction apparatus capable of synchronously reproducing image frames and numerical data at high speed, including: a data storage section configured to store image data including multiple image frames of monitored objects captured by cameras, and process data including multiple numerical data acquired from the monitored objects in time series; a program storage section configured to store a data synchronous control program configured to reproduce the image data and synchronously reproduce the image data and the process data on the basis of frame numbers and a frame period of the image frames and a sampling interval or record numbers of the numerical data; and a CPU configured to execute the data synchronous control program.
摘要:
An apparatus includes: a first range data storage section 21 for storing as first range data upper and lower limit values of process data, and a first reference point of time, while associating the upper and lower limit values with the first reference point of time; a second range data storage section 22 for storing as second range data upper and lower limit values of process data acquired in each second period, and a second reference point of time, while associating the upper and lower limit values with the second reference point of time; a sampling data storage section 113b for storing as sampling data process data including a chronological change, and an elapsed time from a reference point of time, while associating the process data with the elapsed time; and a storage controller 111a for storing the first range data, the second range data and the sampling data.
摘要:
An apparatus includes: the arrangement pattern sampling data generator 111b for generating the arrangement pattern sampling; the bit pattern sampling data generator 111c for, each time process data are acquired from the controllers 51 to 5n, generating the bit pattern sampling; the calculator 111d for calculating the number-of-change-points threshold value indicating the threshold value for the number of process data each including the chronological change on the basis of the data size needed to store the elapsed times and the sampling cycles (the acquisition intervals) for the process data acquisition; and the storage controller 111a for storing any one of the bit pattern sampling data and the arrangement pattern sampling data, which requires a smaller storage capacity, into the storage unit 113.
摘要:
According to one embodiment, a plant control system includes a station mounting controllers thereon, an engineering device which manages programs, and a device which connects the controllers and the engineering device. The engineering device includes database which stores information on a first variable for allowing data to be shared among programs in each controller and a second variable for allowing data to be shared among programs in the station, the database management part, and a relocate management part which moves the program, and the relocate management part includes a designating module which designates an execution order of programs in a source controller, one or more programs to be moved, a destination controller, and the source controller, a module which moves the program as designated in the designating module, and a changing module which, when the program is moved, moves or copies the first and second variable used in the program.
摘要:
An method of manufacturing a piezoelectric element easily and surely forms polymer coatings on peripheral end faces of the piezoelectric element without deteriorating a yield of the piezoelectric element. The method includes steps of cutting a piezoelectric element out from a base piezoelectric material plate so that peripheral end faces are formed to define a peripheral shape of the piezoelectric element, and forming polymer coatings on at least objective areas of the peripheral end faces of the piezoelectric element by vapor deposition polymerization, respectively.
摘要:
A suspension is provided with a base plate, load beam, and flexure. The base plate includes a boss portion, a first region situated on a side closer to a slider with respect to a center of the boss portion, and a second region situated on a side more remote from the slider. A pair of first projections are formed in the first region. A pair of second projections are formed in the second region. The projections project in the thickness direction of the base plate. The boss portion is inserted into a hole in an actuator arm, and the projections contact a suspension support portion of the actuator arm. The boss portion is pressurized from inside to be enlarged, whereby the base plate is fixed to the inner peripheral surface of the hole of the actuator arm.
摘要:
The invention is directed toward a method of manufacturing a flexure blank whereby an opening portion is provided in a in a connecting portion of a flexure blank, an opening end portion of an insulating base layer is coated with a conductive member without exposing the opening end portion of the insulating base layer in the connecting portion, and a lower surface of the conductive member of the opening portion in the connecting portion of the flexure blank is structured such as to form the same surface as the lower surface of the insulating base layer.