JPH0630068B2 - Preventive maintenance processing method for processing equipment - Google Patents

Description

The present invention relates to a preventive maintenance processing method for a processing device, and particularly to a processing device suitable for realizing an easy-to-use man-machine interface and improving the system operating rate. Related to preventive maintenance processing method.

[Conventional technology]

The conventional preventive maintenance method for processing equipment adds a code according to the importance of the abnormality to the processing equipment abnormality information and sensor information,
This code is used to determine whether or not emergency measures are required.If an emergency measure is required, an abnormal code is displayed to issue an emergency measure request to the operator. If no emergency measure is required, the abnormal information is stored as an abnormal statistical information file. In addition, when the maintenance staff regularly checks the abnormal statistical information, if necessary, preventive maintenance is performed.

[Problems to be Solved by the Invention]

The above-mentioned conventional technique has a problem that preventive maintenance is not performed even if the preventive maintenance such as frequent occurrence of an intermittent error is required between the regular inspection by the maintenance staff and the next regular inspection.

An object of the present invention is to solve the above problems and to implement preventive maintenance at the time when the need for preventive maintenance other than emergency measures arises, and to implement a user-friendly man-machine interface. There is a way to provide.

[Means for Solving the Problems]

For the above purpose, the abnormality information of the processing device and the abnormality information of various sensors in the processing device are filed as abnormality statistical information, and first, emergency measures are required from the abnormality statistical information in the file depending on the type and location of the abnormality. If there is a need for emergency measures, the emergency measure request error is displayed by an error code display, external contact operation, indicator lamp lighting, etc. Refer to the occurrence frequency of the anomaly from the anomaly statistical information in the above file, and if the occurrence frequency exceeds a preset threshold value, determine that the anomaly requires preventive maintenance. Request abnormalities are reported by abnormal code display, external contact operation, indicator lamp lighting, etc.
This is achieved by allowing the operator to change the threshold.

[Action]

In the preventive maintenance processing method for the processing device described above, each time an abnormality occurs in the processing device, the abnormality information is filed as abnormality statistical information, and the abnormality required for emergency measures and the occurrence frequency exceed a preset threshold value. Abnormalities required for preventive maintenance are separated, and an emergency measure request abnormality and preventive maintenance request abnormality are displayed by an abnormality code display, external contact operation, indicator lamp lighting, etc. It is possible to recognize whether it is an abnormality or an abnormality that requires preventive maintenance, and it is possible to check the outline of the type and location of the abnormality that has occurred by the abnormality code display. The maintenance personnel can perform regular inspections by contacting maintenance personnel for abnormalities that require preventive maintenance. Preventive maintenance of early treatment apparatus without waiting becomes feasible. Further, when more detailed preventive maintenance is required, the operator can deal with it by changing the threshold value.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing an embodiment of a preventive maintenance processing method for a processing apparatus according to the present invention. In FIG. 1, 1 is a preventive maintenance processor (SVP), 2 is a preventive maintenance target processor (CPU), 3 is a console (CD), 4 is a file for storing abnormal statistical information (FILE), and 5 is an abnormal code. Display 61, preventive maintenance request external contact (SW1), 62 emergency measure request external contact (SW2), 71 preventive maintenance request abnormality display lamp (PL1), 72 emergency measure request abnormality display lamp (PL2), 101 Is an error code display signal line, 102 is a control signal line for controlling the external contacts 61, 62, and 103 is an indicator lamp 71, 7
2 is an abnormality display signal line, 201 is a patrol information report signal line for the CPU 2, 202 is a sensor information report signal line, and 301 is a threshold value for setting a threshold value such as an abnormality occurrence frequency in the preventive maintenance processing device 1. A set signal line, 401 is a bus for transferring abnormality statistical information between the file 4 and the preventive maintenance processing device 1, and 611 and 621 are external signal lines.

The operation outline of FIG. 1 will be described. When an abnormality occurs in the CPU 2, abnormality information is input to the preventive maintenance processing device 1 through the patrol information report signal line 201 and the sensor information report signal line 202. This patrol information is single-bit error correction information of the main memory (MS) in the CPU 2 (including divided information of an intermediate error / static error).
And a memory control unit (MC
U) cache memory parity error and translation buffer (TLB) parity error information, and M in the CPU 2
The CU includes the MS write retry information and the control error (WCS) parity error information in the CPU 2. The sensor information includes temperature abnormality information from a temperature sensor attached to the intake / exhaust port of the CPU 2, dew condensation information from a dew condensation sensor attached in the CPU 2, fan stop information from a fan stop detection sensor in the CPU 2, and the like. Sensor detection information. In the preventive maintenance processing device 1, a threshold value such as an abnormality occurrence frequency for various pieces of abnormality information is preset from the console 3 through the threshold value setting signal line 301. This threshold can be changed by the operator. The preventive maintenance processing device 1 generates new abnormality statistical information based on the abnormality information collected from the CPU 2 and the abnormality statistical information read from the file 4 through the bus 401 to generate the bus 401.
Write to the file 4 through the set, and the set threshold and the newly created abnormality statistical information determine the urgent measures required for the abnormalities and the urgent measures that require preventive maintenance. The abnormal code generated according to the type and location of the abnormality is displayed on the abnormal code indicator 5 through the signal line 101, while it is divided into the required abnormality and the preventive maintenance required abnormality. The lamp 72 is turned on and the external contact 62 is turned on through the control signal line 102. In the case of a preventive maintenance request abnormality, the lamp 71 is turned on and the external contact 61 is turned on to report the abnormality. By these, the operator recognizes the occurrence of an emergency countermeasure request error as well as the occurrence of preventive maintenance request error by turning on the error indication lamps 71, 72 or turning on the external contacts 611, 621 connected to the external signal lines 611, 621, and the error code indicator By referring to 5, it is possible to recognize and implement the countermeasure request content.

FIG. 2 is an internal block diagram of the preventive maintenance processing device 1 of FIG. In FIG. 2, the same reference numerals as those in FIG. 1 indicate corresponding parts, 11 is an abnormal data collecting circuit, 12 is a threshold value holding circuit,
13 is an abnormality statistical information edit circuit, 14 is an emergency measure necessary abnormality and preventive maintenance required abnormality determination circuit, 15 is an abnormality code generation circuit,
111 is a collection abnormality information signal line, 121 is a threshold data signal line, 131 is an abnormality statistical information data line, and 141 is a data line such as the type and location of abnormality.

The internal operation of FIG. 2 will be described. The abnormal data collection circuit 11 collects patrol information and sensor information from the CPU 2 through the signal lines 201 and 202, and outputs the abnormal data to the signal line 111.
Is input to the abnormality statistics editing circuit 13. The abnormality statistics editing circuit 13 generates new abnormality statistics information based on the abnormality data input from the abnormality data collection circuit 11 and the abnormality statistics information read from the file 4 via the bus 401, and the generated abnormality information is transmitted to the file 4 via the bus 401. And input to the determination circuit 14 through the data line 131. Judgment circuit 14
Inputs the threshold value of the threshold value holding circuit 12 set through the signal line 301 from the console 3 through the signal line 121. Based on this threshold value and the new abnormality statistical information input through the data line 131, the emergency measure required abnormality And the preventive maintenance required error are input to the code generation circuit 15 through the signal line 141, and abnormal data indicating the location and type of the abnormal condition are input. , 72 and external contacts 61, 62 are output through control lines 103, 102. The code generation circuit 15 generates an abnormality code based on the abnormality data input through the signal line 141 and outputs it to the abnormality code display 5 through the signal line 101.

FIG. 3 is a flow chart of the judgment algorithm of the judgment circuit 14 of FIG. In FIG. 3, the determination circuit 14 first determines whether or not an abnormality in the CPU 2 has occurred based on the input information from the newly generated abnormality statistical information data line 131 (step 3
a), fan stop (step 3b), intake / exhaust temperature abnormality (step 3c), and if either of them is determined, the operator must take immediate action. Abnormal code is displayed on the code display 5 and emergency measure request error indicator lamp 72
Is turned on and the emergency contact request external contact 62 is turned on (step 3d). Then, it is determined whether the abnormality is an intermittent error (step 3e). If the error is an intermediate error, it is determined whether the frequency of the intermittent error is within a preset threshold value of the threshold value holding circuit 12 ( If the occurrence frequency is within the threshold value in step 3f), it is determined whether or not a static error has occurred (step 3g). Next, if the frequency of the intermittent error exceeds the threshold value or if the static error occurs, isolate the preventive maintenance request error that requires measures for preventive maintenance,
The error code is displayed on the error load display 5, the preventive maintenance request error display lamp 71 is turned on, and the preventive maintenance request external contact 61 is turned on to report (step 3h).

According to the present embodiment, not only the abnormality requiring the emergency measures of the processing device but also the abnormality requiring the preventive maintenance such as the frequent occurrence of the intermittent error and the occurrence of the static error are separated,
By reporting with the lamp display and external contact operation together with the error code display, more detailed preventive maintenance is possible and the system operation rate is improved.

〔The invention's effect〕

According to the present invention, in addition to anomalies that require urgent countermeasures in the processing device, frequent occurrences of intermittent errors and occurrences of static errors do not lead to immediate system down, but preventive measures such as conversion of faulty parts as soon as possible. Since abnormalities requiring maintenance measures are separated and reported, preventive maintenance can be performed without having to perform periodic inspections by maintenance personnel. Further, the operator can change the threshold value for distinguishing the abnormality as necessary, thereby enabling more detailed preventive maintenance.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a preventive maintenance processing method for a processing apparatus according to the present invention, FIG. 2 is a block diagram of the preventive maintenance processing apparatus of FIG. 1, and FIG. 3 is a judgment circuit of FIG. 7 is a flowchart of a determination algorithm. 1 ... Preventive maintenance processing device, 2 ... Processing device (CPU), 3 ...
Threshold setting console, 4 ... Abnormality statistical information storage file, 5 ... Abnormality code indicator, 61 ... Preventive maintenance request external contact, 62 ... Emergency countermeasure request external contact, 71 ... Preventive maintenance request information display lamp, 72 ... Emergency Countermeasure request abnormality display lamp, 11 ... Abnormal data collection circuit, 12 ... Threshold value holding circuit, 13 ... Abnormal statistics information editing circuit, 14 ... Judgment circuit, 15 ... Abnormal code generation circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Miyazaki 5-2-1 Omika-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Omika factory (72) Inventor Takao Nouchi 5-chome, Omika-cho, Hitachi-shi, Ibaraki No. 1 Incorporated company Hitachi, Ltd. Omika Plant (72) Inventor Hiroshi Watanabe 5-21 Omika-cho, Hitachi City, Ibaraki Prefecture Incorporated Hitachi Ltd. Omika Plant (72) Inventor Yoshihiro Nakano Omika, Ibaraki Prefecture 5-2-1, Machi, Ltd. Inside the Omika Plant, Hitachi, Ltd. (72) Inventor, Harutsu Ono, 5-2-1, Omika-cho, Hitachi, Hitachi, Ibaraki (72) Incorporator, Hitachi Control Systems (72) Inventor, Kazuya Miyamoto 2-9-1 Aize-cho, Hitachi-shi, Ibaraki Hitachi Service Engineering Co., Ltd. (56) Reference JP-A-62 216053 (JP, A) JitsuHiraku Akira 61-25648 (JP, U)

Claims (1)

[Claims] 1. A method for performing preventive maintenance of a processing device, comprising:
A type of anomaly that has occurred in the processing device and the location of the anomaly are collected, statistical information of the anomaly collected is filed, and the type of the anomaly obtained from the statistical information of the file and the frequency of occurrence of each anomaly are preset threshold values. Comparing with, the first abnormality that requires emergency measures and the second abnormality that does not require emergency measures but requires preventive maintenance
A preventive maintenance processing method for a processing apparatus, characterized in that it is possible to distinguish between abnormalities, output a report distinguishing between the first abnormality and the second abnormality, and change the threshold value by an operator.