摘要:
An object is to provide a redundant supervisory control system and a redundancy switching method thereof. In the redundant supervisory control system, remote I/O apparatuses are less likely to be inaccessible, even in a case where failures occur in plural locations. Thus, the reliability of the system is enhanced. The redundant supervisory control system including a plurality of first loop interface units in each of a pair of controllers, second loop interface units, and communication cables each connecting the plurality of first and second loop interface units with one another in a circular loop. The redundant supervisory control system is configured by connecting the controllers and the remote I/O units to one another in a plurality of loop networks. In a case where abnormality in the loop networks is detected by use of received data in the networks, the first and second loop interface units that can perform normal reception are automatically selected.
摘要:
An object is to provide a redundant supervisory control system and a redundancy switching method thereof. In the redundant supervisory control system, remote I/O apparatuses are less likely to be inaccessible, even in a case where failures occur in plural locations. Thus, the reliability of the system is enhanced. The redundant supervisory control system including a plurality of first loop interface units in each of a pair of controllers, second loop interface units, and communication cables each connecting the plurality of first and second loop interface units with one another in a circular loop. The redundant supervisory control system is configured by connecting the controllers and the remote I/O units to one another in a plurality of loop networks. In a case where abnormality in the loop networks is detected by use of received data in the networks, the first and second loop interface units that can perform normal reception are automatically selected.
摘要:
A first arithmetic operator (11) includes a first modular arithmetic coding encoder (11b) for encoding a numeric data transmitted by a command from a central controller (31) into a modular arithmetic code, a first arithmetic operation processor (11a) using the numeric data as modular arithmetic coded as an input operand, for executing an arithmetic operation based on a command from the central controller (13), to provide an output in the form of a modular arithmetic code, and a first modular arithmetic code decoder (11c) for determining presence or absence of a bit error in the numeric data output from the first arithmetic operation processor, correcting the bit error, if detected any, to output a decoded numeric data.
摘要:
A first arithmetic operator (11) includes a first modular arithmetic coding encoder (11b) for encoding a numeric data transmitted by a command from a central controller (31) into a modular arithmetic code, a first arithmetic operation processor (11a) using the numeric data as modular arithmetic coded as an input operand, for executing an arithmetic operation based on a command from the central controller (13), to provide an output in the form of a modular arithmetic code, and a first modular arithmetic code decoder (11c) for determining presence or absence of a bit error in the numeric data output from the first arithmetic operation processor, correcting the bit error, if detected any, to output a decoded numeric data.
摘要:
For a control apparatus to be boundary scan testable even when running, including processor cores in an operator to be capable of self-repairing a troubling part, an operator (2) has processor cores (2a, 2b) connected to a boundary scan bus (12), and adapted to mutually diagnose opponent processor cores for troubles, by boundary scan testing each other in a time-dividing manner.
摘要:
For a control apparatus to be boundary scan testable even when running, including processor cores in an operator to be capable of self-repairing a troubling part, an operator (2) has processor cores (2a, 2b) connected to a boundary scan bus (12), and adapted to mutually diagnose opponent processor cores for troubles, by boundary scan testing each other in a time-dividing manner.
摘要:
To provide an entry control system as well as an entry control method allowing for an easy entry of user, permitting a restriction to persons who have a legitimate right to enter a facility, an illuminating device (1) emits a modulated visible light signal 13 modulated by use of a door ID code into a preset illumination range, the modulated visible light signal 13 from the illuminating device (1) is received by a mobile terminal (2) portable by the user, where it is demodulated for wireless signal transmission, and the door ID code transmitted from the mobile terminal (2) is received by an authentication device (3), which judges whether or not the door ID code is legitimate, and generates an unlock command when the door ID code is judged to be legitimate, and a door (4) for a facility controlled of entry receives the unlock command from the authentication device (3), whereby it is unlocked.
摘要:
A heat sink includes a radiator fin for dissipating heat of an electronic device provided on a printed board; a plurality of radiator fins included in the heat sink is formed in an arbitrary diameter size; and the radiator fins are connected to each other by inserting a pair of fastening screws through a through hole provided on each of the radiator fins, and a tip end of the fastening screws is screwed and fastened to a screw hole of a base heat sink fixed on the upper surface of an electronic device.
摘要:
According to one embodiment, a monitoring system is provided, which has a personal authentication unit and a camera. The personal authentication unit is provided near a security gate and authenticates a person allowed to pass through the security gate. The camera photographs an area near the security gate, in which the personal authentication unit is provided. The monitoring system further has a data generation unit configured to generate personal attribute data about the person authenticated by the personal authentication unit, a person identification unit configured to identify the person authenticated, on the basis of video data generated by the camera, and a monitoring data generation unit configured to generate monitoring data composed of video data and metadata. The video data represents an image including the person identified by the person identification unit. The metadata is associated with the video data and containing the personal attribute data.
摘要:
In a method of degradation diagnosis according to the present invention, an equipment degradation diagnosis request is input through network 4 from a diagnosis requester and a degradation diagnosis requests handler is selected in accordance with execution condition information of degradation diagnosis specified in respect of at least one degradation diagnosis requests handler and condition information in accordance with which an diagnosis requester requests degradation diagnosis. A request for execution of degradation diagnosis is made to this selected degradation diagnosis requests handler and the results of execution of the degradation diagnosis obtained by the selected degradation diagnosis requests handler are acquired and output through network 4 to the diagnosis requester. In this way, a service can be implemented whereby diagnosis of degradation requested by a diagnosis requester from a diagnostic service provider is performed rapidly and easily at low cost.