JPS62165292A - Maintenance guidance apparatus for equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a maintenance guidance device for equipment such as factory production machines and utility equipment.

[Conventional technology]

Labor-saving efforts are underway with the implementation of centralized monitoring and control of production machinery, etc., and as a result, when trouble occurs with machinery, there are increasing cases where there is a shortage of personnel to deal with it, causing a disruption to production. . Therefore, preventive maintenance of machines and the like has become more important, and a device as described in Japanese Patent Application Laid-Open No. 58-211291 has been developed. This device integrates the number of operations and operation time based on an operation signal indicating the on/off state of the device, and outputs a signal requiring inspection when this integrated value reaches a preset value.

[Problem that the invention seeks to solve]

The above-mentioned conventional equipment does not take into account the importance or priority of the equipment in question, and furthermore requires adjustment of maintenance personnel according to conditions such as the operating schedule of the equipment, the time required for maintenance, and maintenance ability. When there are a large number of devices, these become extremely complicated and require a large amount of time to complete.

SUMMARY OF THE INVENTION An object of the present invention is to provide a maintenance guidance device for equipment that eliminates such drawbacks and provides guidance information that allows maintenance to be performed at an optimal time by taking into consideration the usage conditions and maintenance conditions of the machine.

[Means for solving problems]

The present invention predetermines maintenance priority for equipment to be maintained based on its importance in use, and each time the cumulative value of the usage time or number of times the equipment is used exceeds a predetermined value. This system raises the maintenance priority level by one level, selects items that can be maintained based on the operating status of each piece of equipment and the conditions of the maintenance personnel, and displays them to the maintenance personnel in order of priority. be.

[Effect]

Plant equipment needs to be maintained with the highest priority if it could cause a danger or cause the plant to stop if it breaks down. However, there is no need to rush if the problem does not immediately cause problems for driving. Therefore, if you guide the maintenance in order of priority determined based on the importance of maintenance and the cumulative number of times the equipment has been operated, you will be able to perform efficient maintenance.
Labor for coordinating maintenance work can be significantly reduced.

〔Example〕

The present invention will be explained below by way of examples. FIG. 2 shows an example of the hardware configuration of the device of the present invention, and the operation signals 1 to N of one device are shown in the process input table! ! The data is taken into the microcomputer 11 via the microcomputer 10, processed, and displayed on the display device 12 and typewriter 15. The keyboard 13 or light pen 14 is used for inputting maintenance capabilities and various conditions, which will be described later, into the microcomputer.

A feature of the present invention, which is used for man-machine processing such as data clearing after maintenance, is incorporated into such a system as software, and will be described in sequence below.

FIG. 3 is a maintenance data management table, which is provided in the memory within the microcomputer 11.
Each device has the following data.

First, the maintenance specified value A is a specified value for the operating time or number of times the device is operated, and when the actual operating value X of the device exceeds this specified value, the device is targeted for maintenance. α is the specified value A
This ratio α of the excess over the specified value A
The maintenance class is determined as described below according to the multiple of the value corresponding to . The device class is the importance class of the device and is set in advance from A to B, C, and so on. A is the most important equipment, which would have a large impact on the plant if a failure occurred, and which cannot be easily stopped. The importance level decreases in order from B to C, and the last class is equipment that is unimportant or has spare equipment and can be stopped at any time.

The maintenance class is updated according to the performance value X based on the equipment class, and indicates the priority order when performing maintenance. Here, as with the device class, A has the highest priority, followed by B,
Followed by C. The actual value is the actual value of the operating time or number of times of operation of the equipment, and is the value obtained by integrating the actual values after the previous maintenance on a daily or monthly basis. The maintenance request indicates the number of personnel and time required for maintenance, and this, A, α, and device class are displayed on the keyboard 13 along with the device name.
It is input in advance from etc.

The actual value X is the microcomputer 11 shown in FIG.
By 1 minute processing and 1 day processing, operation signals 1 to N
The driving time, which is the total makeup time, or the number of driving times, which is the number of times the vehicle was made, is accumulated and updated every day. To set and update the maintenance class, first, when the actual value X exceeds the specified value A, the equipment class is determined to be subject to maintenance and the ranking of the equipment class is set to the maintenance class. For example, if the actual value x1 of device 1 exceeds its specified value a1, C
is set to the maintenance class. Next, calculate Y by A α using coefficient α, and when the value of Y is 1<Y<2, 1 step (
(from C to B, B to A, etc.), and when 2<Y≦-3, the initially stored class is raised to the upper class (from D to B, C to A, etc.).

For example, A=100Hr, α=20%, x=125H
When r, Y=1.25, and if it was originally class C, it will be upgraded to class B by one level.

FIG. 5 shows an operating time table, in which the operating time of the equipment is input in advance from the keyboard 13 or the like corresponding to days of the week such as weekdays and holidays. Each device is a microcomputer 11
It is controlled to automatically start and stop according to this time. Note that 0.00-0.00 indicates continuous operation for 24 hours, and 8.00-18.00 indicates operation from 8 AM to PM.
6. For example, it indicates the operation up to OO.

Figure 6 is a capability table for maintenance personnel who perform maintenance, and shows the maintenance personnel's schedule for one month.
Dz is from 8:00 to 16:00, DB is from 16:00 to 24:00, and the number of people in each work zone is shown on a daily basis. This table is also created by inputting from the keyboard 13, etc., and is set in the memory together with the table shown in FIG.

FIG. 1 is a processing flow for maintenance guidance, which is started every month for maintenance guidance.

Then, in step 100, an operating pattern for the target equipment is created, and in step 102, a maintenance capability cover pattern is created.These patterns are illustrated in FIG. 7, and one equipment operating pattern is defined as the operating time shown in FIG. High level while driving, taking time from the horizontal axis from the table.
When the engine is stopped, it is expressed as a low level and is shown in a time chart. On the other hand, the maintenance capacity cover turn is a graph showing the number of maintenance tools placed in each time period (the diagram shows the day divided into three) by referring to the maintenance staff table in Figure 6. When the above two pattern creations are completed, the maintenance data management table shown in FIG. 3 is examined in step 102, and equipment with a high maintenance class is selected. In the example of FIG. 3, class A device 3 is first selected. In step 103, the device 3 you just selected
The data indicating how much time and personnel are required for maintenance is read from the maintenance request table in Figure 3, and the request pattern shown in Figure 7 (horizontal direction is required time, vertical direction is required In step 104, this request pattern is compared with the operation pattern of the equipment in question, and a time period in which the width (required time) of the request pattern is within the stop time of the equipment in question is searched.

If so, in step 105, the maintenance capability cover pattern for that time period is checked to see if its height is sufficient for the required pattern height. Step 104,10
If all 5 are satisfied, maintenance of the equipment is possible during that time period, so register that time period as the maintenance period for the equipment in the buffer in memory, and step the number of tools used during this time period. Exclude it from the maintenance capability cover pattern created in step 101 (step 10).
6) If the requirements are not met in steps 104 and 105, the maintenance class of the device is checked again in step 107, and if it is class A, it cannot be left unattended, so an alarm message is set in step 108.
If the 9 classes to be stored in the buffer in step 6 are B or lower, such an alarm will not be prepared, and maintenance will be performed for the next month by repeating steps 102 to 108 of steps 6 and above to create guidance for devices with lower classes one by one. When the processing for the target equipment is completed, in step 109, the maintenance list, warning messages, etc. stored in the display device 12 or typewriter 15 are output.

〔Effect of the invention〕

According to the present invention, it is possible to determine the priority of equipment maintenance based on the importance of equipment usage and preventive maintenance, and to automatically determine the maintenance period based on this, taking maintenance conditions into consideration. This has the effect of reducing clerical work and ensuring that necessary maintenance can be carried out without interfering with the factory's production activities.

[Brief explanation of drawings]

Fig. 1 is a flowchart of guidance processing, which is a feature of the present invention, Fig. 2 is a block diagram showing an example of the hardware configuration of the device of the present invention, Fig. 3 is an explanatory diagram of a maintenance data management table, and Fig. 4 is an illustration of a maintenance data management table. . A flowchart of the process of importing the operation time or number of times of equipment on a daily basis, Figure 5 is an explanatory diagram of the operating time table, Figure 6 is an explanatory diagram of the maintenance personnel table, and Figure 7 is an illustration of how to allocate maintenance periods. It is an explanatory diagram. 1 to N...Device operation signal, 10...Process input/output device, 11...Microcomputer, 12...
Display device, 13...Keyboard, 14...
Light pen, 15... typewriter.

Claims (1)

[Claims] 1. Input means for detecting the actual operating hours or number of operations of each device and calculating the cumulative value within the guidance creation period, and maintenance for each device indicating that the higher the level, the more priority should be given to maintenance. a priority setting means for setting the priority in advance, and when the cumulative value exceeds a predetermined value set for the device, the set priority level or the level thereof is set according to the amount exceeded; A maintenance level setting means for setting the raised level as the maintenance level of the equipment; a schedule setting means for presetting the operation schedule of each equipment and the work schedule of maintenance personnel; Refer to the maintenance level setting means above to select devices with maintenance levels set in descending order of maintenance level, and select the time period when the selected device is not operating and maintenance personnel who can work at that time are required to maintain the device. and guidance creation means for checking whether the required time and number of equipment can be met by referring to the schedule setting means, and outputting the above-mentioned time period as the maintenance time for the equipment if maintenance is possible. An equipment maintenance guidance device featuring: