Patent ID: 11914356
Assignee: ITS CO., LTD
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An integrity index detecting method for a device by using multiple control output signals, with an aid of a digital computer, the method comprising:
providing the digital computer with a data base of time information of the multiple control output signals and operations of the device;
an integrity information collecting step of initially collecting, by the digital computer, a time interval value between a control output signal and another control output signal which are output from a controller in a normal state of the device which receives at least one control output signal output from the controller to repetitively operate in which the time interval value between the control output signal and another control output signal which are output from the controller to allow the device to repeat an operation is repetitively collected and gradient information for the time interval value between the control output signals is collected by means of a gradient of a straight line connecting the collected time interval values;
a defect information collecting step of initially collecting, by the digital computer, a time interval value between a control output signal and another control output signal which are output from the controller in a state before malfunction of the device which receives at least one control output signal output from the controller to repetitively operate occurs, in which the time interval value between the control output signal and another control output signal which are output from the controller to allow the device to repeat the operation is repetitively collected and the gradient information for the time interval value between the control output signals is collected by means of the gradient of the straight line connecting the collected time interval values, wherein the control output signal and another control output signal between which the time interval value is collected at least twice during the integrity and defect information collecting steps are for the same operation of the device;
a setting step of automatically setting, by the digital computer, an integrity reference value and a defect reference value for the gradient of the time interval value between the control output signals based on the gradient information for the time interval value between the control output signals collected in the integrity and defect information collecting steps;
a detecting step of constantly measuring and detecting, by the digital computer, the time interval value between the control output signal and another control output signal which are output from the controller to repetitively perform the operation of the device in real time and automatically detecting, by the digital computer, the integrity index value of the device by automatically comparing the integrity and defect reference values set in the setting step with a gradient value for the collected time interval value; and
an outputting step of outputting the integrity index value detected in the detecting step to provide the integrity index value to a manager,
wherein in the detecting step, the time interval value is repetitively measured and detected by the digital computer in real time,
wherein when the integrity index value of the device is extracted in real time, the extracted integrity index value is output to a normal monitor as an image, and
wherein the gradient value corresponds to an absolute value of a difference of timings between the control output signals.