JPS61155871A - Self-diagnosing device - Google Patents

Abstract

PURPOSE:To take a fault analysis speedily and securely by providing a circuit diagram information storage means, fault diagnosing means, plotting control means, display means, etc. CONSTITUTION:Radiation emitted by the radiation generating source 23 of a detection part 21 is transmitted through a body 25 to be measured, and detected and converted by a detector 27 into an electric signal, which is supplied to a microcomputer 31 through a control part 29 and processed, thereby calculating the plate thickness, etc., of the object body 25. A magnetic tape device 41, on the other hand, is stored with information on a detection part 21, control part 29, traverse control part 33, display device 35, minicomputer 37, etc. Necessary part of this information is read out when necessary, stored in a magnetic disk device 39, and further inputted to the microcomputer 37. The fault diagnosing part 37b take a fault diagnosis on the basis of connection diagram information stored in the device 41. Further, the plotting control part 37c displays the connection diagram of a necessary part and the connection diagram of the fault part detected by the diagnosing part 37b on the device 35. Alteration data is fetched here immediately, so up-to-date connection diagrams are obtained at any time.14-.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a self-diagnosis device that quickly and accurately performs failure diagnosis.

(Technical Background and Problems of the Invention) For example, a measuring instrument is necessary for measuring the performance, etc. of a specified product, device, material, etc. in a factory or field. If a failure occurs, it may interfere with measurement and cause problems, so it is necessary to take prompt and appropriate measures to repair the failure. Repair measures were taken at the discretion of maintenance personnel, took time, and required skill.

Figure 6 shows a radiation thickness meter, which is one of such measuring instruments.
In other words, it is a conventional thickness gauge that measures the thickness of a steel plate using the transmission of radiation. In this thickness gauge, the detection part 2
Radiation emitted from a radiation source 23 provided in the detector 1 passes through the object to be measured 25 while being attenuated, enters the detector 27, and is detected by the detector 27. The detector 27 converts the intensity of the incident radiation into a corresponding electrical signal and supplies it to the receiver 29. 1ilJIj
The electrical signal corresponding to the FiS29 radiation intensity is
The signal is D-converted into a digital signal, and the microcomputer 31 performs arithmetic processing on this signal to calculate the thickness of the object 25 to be measured.

By the way, this kind of thickness gauge can be used not only for fixed point measurement, but also for
In many cases, the thickness of the entire width of the object 25 to be measured and the thickness at both ends of the object 25 are also measured.
5 is measured while scanning the entire object 25, thereby also measuring the amount of crown of the object 25 to be measured, the thickness of the edge of the object, etc. For this reason, in such a thickness gauge, scanning control of the detection unit 21 and calculation processing of the crown amount are required, and a graphic display of the thickness of the entire object to be measured 25 is required. The microcomputer 31 of the section 29 cannot perform the processing alone, so a dedicated minicomputer 71 is used.

The minicomputer 71 is connected to the control section 29 and also to the detection section 21 via the traverse control section 33 . The traverse control section 33 is for moving the detection section 21 relative to the object to be measured 25 for scanning in order to determine the overall thickness of the object to be measured 25. Further, a graphic display device H35 and a magnetic disk device 73 are connected to the mini-computer 71, and the display device 35 graphically displays the overall thickness of the object 25 to be measured.

On the other hand, in recent years, with the development of CAD technology, connection diagrams or wiring diagrams for various devices are created using CAD, and even for measuring instruments such as the thickness gauges mentioned above, the connection diagrams or wiring diagrams are created using CAD. Created by.

FIG. 7 is a diagram showing a processing procedure for obtaining connection diagrams, wiring diagrams, etc. using such CAD. In Figure 7,
For example, a handwritten connection diagram draft 75 containing a blueprint, a circuit diagram, a mounting diagram, etc. of a certain device created by a designer is converted into data using, for example, an ordinary keyboard or digitizer, and is sent to a computer 79 through a display device M77 or the like. is input. The computer 79 processes these data to create data for necessary predetermined connection diagrams and wiring diagrams, stores this data on a magnetic tape 81, and
The printed connection diagram 83 and wiring diagram 85 are outputted through a predetermined input/output device.

By the way, data related to connection diagrams and wiring diagrams created with CAD in this way are used only as drawings when the device is completed, but other than that, they have traditionally been particularly useful. Never happened.

For example, even if a device breaks down, maintenance personnel can locate the faulty part based only on the clean-printed connection diagrams and wiring diagrams, without using data related to connection diagrams and wiring diagrams created with CAD, as described above. I was looking for. FIG. 8 shows the procedure of such conventional failure diagnosis processing.
In Fig. 8, the equipment is diagnosed by a fault diagnosis program, and as a result, an abnormality code is output for the part that is considered to be abnormal, but subsequent judgments are made by maintenance personnel who use the equipment's connection diagram, wiring diagram, or explanation. I had to make a decision by examining 91 documents such as books. However, this judgment is not easy and requires skill, and it takes a considerable amount of time to find the faulty part, which causes a great deal of damage, especially in online equipment.

[Purpose of the invention]

The present invention has been made in view of the above, and its purpose is to provide a self-diagnosis bag that enables quick and accurate failure diagnosis.

[Summary of the invention]

In order to achieve the above object, the present invention, as shown in FIG. a failure diagnosis means 3 for diagnosing a failure of the apparatus; a drawing control means 5 for performing a control operation for displaying a circuit diagram of the apparatus based on the circuit diagram information stored in the circuit diagram information storage means; The present invention is characterized in that it has a display means 7 for displaying output information including a failure diagnosis procedure from the means and for displaying a circuit diagram of a desired portion of the apparatus based on output information from the drawing control means.

(Embodiments of the invention) Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 2 shows an embodiment in which the self-diagnosis device of the present invention is applied to a thickness gauge. In the figure, a detection unit 21, a radiation source 23, an object to be measured 25, a detector 27,
The control section 29, microcomputer 31, traverse control section 33, and display device 35 are the same as those in the device shown in FIG. 6, and are given the same reference numerals.

That is, the radiation emitted from the radiation source 23 of the detection section 21 passes through the object to be measured 25 while being attenuated, is detected by the detector 27, is converted into an electrical signal, and is supplied to the control section 29. The control section 29 converts this signal into a digital signal and supplies it to the microcomputer 31, which processes this signal to calculate the thickness of the object to be measured 25. Further, a traverse control unit 33 is connected to the detection unit 21, and the detection unit 21 is moved relative to the object to be measured 25 under the control of the traverse control 1FI$33 to detect the object to be measured. The entire object 25 is scanned, thereby making it possible to measure the overall thickness or profile of the object 25 to be measured.

Historically, a minicomputer 37 is connected to the control section 29 and the traverse 11 control section 33, and the control section 29 and the traverse control section 33 are controlled by the minicomputer 37 to determine the overall thickness of the object 25 and the like. A scanning operation is performed to obtain a profile, etc., and the thickness information obtained from the detection section 21 as a result of this scanning operation is supplied to the minicomputer 37 via the control section 29 and the microcomputer 31. In this section, calculation processing of the crown amount, etc. is performed.

The mini-computer 37 includes an arithmetic control section 37a, a failure diagnosis section 37b, and a drawing control section 37c.
A display device 35 and a magnetic disk device 39 are connected, and a magnetic tape device 41 is also connected via this magnetic disk device 39.

The arithmetic control section 37a controls the microcomputer 31 and the traverse control section 33 of the control section 29 to receive information from the microcomputer 31, and also receives information from the detection section 2.
1. It has a function of supplying diagnostic data etc. to each part of the control part 29, traverse control 1 part 33, etc. in order to perform failure diagnosis, and receiving the resultant data etc. This is achieved through a program.

As mentioned above, the magnetic tape device fW41 is a device created by CAD, mainly the detection section 21, the control section 29, the traverse control section 33, etc., and in some cases, the display device 35, the minicomputer 37, and the magnetic disk device. 39, circuit diagram information regarding the circuit including the magnetic tape device 41, etc., and connection diagram information including the implementation, that is, the structure are stored. Necessary parts of the connection diagram information stored in the magnetic tape device 41 are read out as needed and stored in the magnetic disk device 1f39, and further transferred from the magnetic disk device H39 to the minicomputer 37.
It is now entered into

The failure diagnosis section 37b is stored in the magnetic tape device 41 and CA
It forms a function for diagnosing the failure of this device part based on the connection diagram information of the device part created by D, and is realized by a program. However, the equipment failure diagnosis program is created using connection diagram information created using CAD. More specifically, the failure diagnosis unit 37b has a connection diagram database 43 that stores connection diagram information created by CAD as described above, and a connection diagram database 43 created based on this connection diagram database 43, as shown in FIG. 3 in detail. The diagnostic results are displayed on the display device 35 as message information 47 including, for example, the equipment number of the location where the failure occurred.

Based on the connection diagram information stored in the magnetic tape device 41, the drawing control unit 37c displays the connection diagram of the necessary parts of the device on the display device @35, or diagnoses and detects the problem using the failure diagnosis unit 37b. It has the function of displaying the connection diagram of the faulty part on the display device 35, and is realized by a program.This also means that when there is a circuit change in the device, this change data is immediately incorporated and this program is also executed. Since it can be easily changed, you can always see the latest connection diagram and eliminate differences with the actual device.

The magnetic disk device @39 temporarily stores the information stored in the magnetic tape device 41 as described above, and also includes the arithmetic control section 37a, the failure diagnosis section 37b, and the drawing control section 3.
7c is stored.

FIG. 4 shows a part of a circuit diagram for importing or inputting circuit information, wiring information, connection information, etc. in order to obtain connection diagram information, etc. created by a fault diagnosis program and CAD that implements the fault diagnosis section 37b. It is something. In the same figure, the wires connected to each terminal TB1-1゜TBI-2 are marked with wire numbers YR001, YROO2, etc., and each circuit component has a component mounting position number (location position) A1. or part number 81. Fault diagnosis programs and connection diagram information use these numbers or codes to read data that describes where and how parts are connected to which parts, as well as the functions of each part or circuit. It is folded in. Furthermore, the fault diagnosis program uses the connection diagram information created in this way to determine and store in advance normal predetermined outputs for predetermined combinations of inputs for all possible input combinations. It's okay to leave it alone.

If a failure occurs, set the possible input combinations in sequence, check whether the output state obtained for that input combination is correct, and if the output is incorrect, It is also possible to detect which part is malfunctioning from the input information.

The above-mentioned embodiment is constructed as described above, and its function and operation as a thickness gauge are the same as those of the conventional thickness gauge, but in the event of a failure, the mini-computer 37 An arithmetic control program, a failure diagnosis program, a drawing control program, and a magnetic tape device, which are composed of the provided arithmetic control section 37a, failure diagnosis section 37b, and drawing control section 37c! Diagnosis of the failure, discovery of the failure location, confirmation procedures, countermeasures, etc. are displayed on the display device 35 using the display device 35, etc., based on the connection information etc. stored in the device 41. By following these instructions, it can be done quickly and accurately.

FIG. 5 is a diagram showing the operation of the failure diagnosis program.

As shown in the figure, based on instructions from the program (steps 110, .120>) to check the power supply voltage if the output value of a certain part of the device becomes abnormal, a message appears on the display device 35. - For example, terminal T
B1-1. In addition to instructions to check the voltage between the TBI-2 and the specific installation location, device number, wire number, etc., a voltage instruction of 1oooV indicating an appropriate range is also displayed. Then, depending on whether the voltage value checked according to this instruction is normal or abnormal, the next instruction appears on the display device 35 (step 130). Thereafter, the failure point can be detected by sequentially checking according to the instructions displayed on the display device 35, and in some cases, after the failure point has been further detected, the repair instructions that are continuously displayed can be followed. We can even perform repairs. In addition, when a checking process or a faulty part is detected, the circuit diagram of the part being checked or the detected faulty part is controlled by the drawing control program constituted by the drawing control section 37c as necessary. The circuit diagram can also be displayed on the display device 35.

In addition, although the said Example demonstrated the case where it applied to the measuring instrument used as a thickness gauge, it is not limited to this. Further, although the failure diagnosis, disconnection section, etc. are provided in a minicomputer, the present invention is not limited to this, and it goes without saying that a microcomputer or the like may also be used.

〔Effect of the invention〕

As explained above, according to the present invention, diagnosis points can be specifically indicated by display instructions on the display means by controlling the fault diagnosis means and the drawing control means based on the circuit diagram information from the circuit diagram information storage means. Since the fault diagnosis procedure is clearly defined, it can be carried out quickly and accurately without requiring any skill as in the past, and high reliability can be obtained. Furthermore, since the connection diagram information is stored as one database, it is possible to reduce the number of device documents and also to eliminate mismatches between documents and devices.

[Brief explanation of drawings]

Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a block diagram showing an embodiment of the self-diagnosis device of the present invention applied to a thickness gauge, and Fig. 3 is a diagram showing the configuration of an embodiment of the self-diagnosis device of the present invention applied to a thickness gauge. FIG. 4 is a diagram explaining the creation of connection diagram information. FIG. 5 is a diagram explaining the failure diagnosis operation of the device in FIG. 2. FIG. Fig. 7 is a diagram showing a procedure for creating a connection diagram using CAD, and Fig. 8 is a diagram showing a conventional failure diagnosis procedure. 29...Control unit 31...Microcomputer 33...Traverse l1111I1 section 35...Display device 37...Mini computer 37a...Arithmetic control unit 37b...Failure diagnosis unit 37c...Picture drawing Control unit 39...Magnetic disk device 41...Magnetic tape device*2 supply 1am degree 4zu happy 6 figure 171!1

Claims (1)

[Claims] a circuit diagram information storage means for storing at least circuit diagram information of the device; a failure diagnosis means for diagnosing a failure of the device based on the circuit diagram information stored in the circuit diagram information storage means;
displaying output information including a fault diagnosis procedure from the fault diagnosis means; and display means for displaying a circuit diagram of a desired part of the apparatus based on output information from the drawing control means.