JPS63293445A - Inside diagnostic device for equipment - Google Patents

Abstract

PURPOSE:To easily decide an abnormal place by providing a video control part, an image storage part, an image data part, etc., and displaying a still image on the screen of a display device successively together with a video- recorded image when video recording information is reproduced. CONSTITUTION:Light (d) emitted by a light source part 6 becomes light (b) through the optical system of the video control part 5 and is projected in the piping of a condenser 1. Then when a light detection signal from a video probe is inputted to a scope 3, it becomes an image pickup signal (a), which is inputted to an input part 4. This signal (a) is converted into a digital signal (c), which is inputted to the control part 5. This control part 5 supplies image information (i) generated according to the signal (c) to the image data part 11 and also supplies a select signal (f) to the image storage part 8. This storage part 8 sends out image information (k) determined with the signal (f) to the data part 11. The data part 11 sends out a signal l generated by superposing the information (i) from the control part 5 and the information (k) from the storage part 8 one over the other to an output part 7. This output part 7 encodes the signal linto a display signal (m), which is displayed 12, thereby easily deciding the abnormal place.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is an equipment internal diagnostic device for diagnosing each part inside the equipment that cannot be observed from the outside using an industrial endoscope and a video device. Regarding.

(Prior art) As a device for diagnosing the inside of equipment that cannot be observed from the outside, such as piping or heat exchangers, a video probe of an industrial endoscope is inserted inside the equipment, and images captured through this video probe are used. There is a device in which the control unit processes the information necessary for display and displays it on the video screen of the display to diagnose the internal situation of the device.

By the way, when diagnosing equipment within one plant, for example, there are a large number of locations to be diagnosed, and moreover, the diagnostic locations are spread over a wide range. Also, if there is an abnormality inside the device, such as scale build-up, etc. ! If there is wall corrosion, this will gradually progress over time.

Therefore, when diagnosing the inside of a device in these situations, the amount of data that must be recorded after diagnosis is enormous, both temporally and spatially, and the number of images required to classify and sort the data is enormous. Conditions, Il Shadow object and its parts, I
What information is required is the date and time of the award.

Therefore, in conventional device internal diagnosis devices, this information is entered by entering label characters from the keyboard attached to the video device, and to compare the current internal condition of the device with past data, it is necessary to enter this information on the video screen. This was done by first creating a still image, taking a photo with a camera, and then comparing the photos with each other.

However, such internal device diagnostic equipment does not include information on the exact location and time of imaging that follows the movement of the video image, so if the ti shadow position is moved over a wide range with respect to the diagnosis target, This poses a problem in determining abnormalities and repair locations. Furthermore, when it is desired to diagnose changes in a situation over time, it is not possible to grasp the rate of change of the situation without accurate time display.

In addition, if you try to enter information about the exact region to be imaged and the time of imaging by entering label characters from the keyboard, you will have to enter the name of the region to be imaged, the distance from the base point, etc. at the time of imaging. There are problems such as time delays when inputting information.

Furthermore, in order to compare the current state and past data, still images must be taken with a camera, but using a camera reduces the image size and makes it difficult to see.
Image clarity may be reduced.

(Problems to be Solved by the Invention) As described above, in the conventional device internal diagnosis device, there are problems when inputting information such as the exact location and time of imaging, and when comparing current and past data. Since images are taken and compared with each other, it becomes difficult to judge depending on the image size and sharpness, and there are problems that need to be improved in both cases.

The present invention was made to solve the above-mentioned problems, and provides an internal equipment diagnosis that allows easy input of position and time following the movement of video images and comparison of current and past data. The purpose is to provide equipment.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention inserts a video probe of an industrial endoscope into the equipment to be inspected, and captures images obtained through the video probe. In the device internal diagnosis device, which processes the information necessary for display in the control section and displays it on the screen of the display device to diagnose the internal situation of the device under test, the screen display method is selected and specified in the tiIJI section 11. a drawing storage means in which a conceptual diagram or a projection diagram of the equipment to be inspected is stored in advance; a recording means for recording a photographed image with a mark representing the photographed image position along with a photographing time; static image storage means for storing an arbitrary photographed image as a still image from among the recorded recorded images; A first function of reading out conceptual diagrams or projection materials to be displayed on a part of the photographed image displayed on the screen of the display device, and reading out conceptual diagrams or projection materials read from the recording means and replaying them on the screen of the display device. The present invention is characterized in that a part of the recorded image has a second function of reading and displaying the still image stored in the still image storage means.

(Function) Therefore, in the device internal diagnosis IIM having such a configuration, the concept of the corresponding device to be inspected stored in the drawing storage means by the first function of the control section when diagnosing the inside of the device to be inspected. When the diagram or projection diagram is read out, this conceptual diagram or projection diagram is displayed superimposed on a part of the photographed image inside the device under test, which is displayed on the screen of the display unit along with the mark representing the Wi image image position and the photographing time. When the image recorded in the recording means is played back on the video screen of the display device by the second function of the control section, the still image stored in the still image recording means is displayed next to the played image. This makes it easier to determine abnormal locations and repair locations, and it is also easier to diagnose changes over time in the equipment under test.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration example in which the device internal diagnosis device according to the present invention is applied to diagnosis of a condenser of a refrigerator. In FIG. 1, 1 is a condenser to be inspected; 2 is a condenser to be inspected;
3 is a diagnostic device main body, and 3 is a scope that obtains an m-image signal from an optical signal input through a video probe inserted into the condenser 1, which constitutes an industrial endoscope. Also, 1
2 is a display device for displaying uniform information outputted from the diagnostic device main body 2 on a video screen; 13 is a label character input device;

This is a keyboard for selecting screen display methods such as control signals.

The above diagnosis @Bloody body 2 is Ft11 which was m-shadowed by scope 3
An input unit 4 that takes in the ml signal a and converts it into a digital signal C, an optical system that introduces a light beam into the scope 3, and a selection signal for a screen display method such as entering label characters from the keyboard 13, and an input unit 4 A video control section 5 to which a digital signal C is input, a light source section 6 that emits light d to the optical system of this video control section 5, a conceptual diagram or a projected diagram of the equipment to be inspected is stored, and the video control section 5 Drawing memory 1 from which the corresponding conceptual diagram or projection diagram is read out when the selection signal f is inputted from the drawing memory 1! $8, screen information 1 obtained from the video control unit 5 and drawing information k read from the drawing storage unit 8
is input, and a screen data section 11 outputs a signal obtained by superimposing these signals, an output section 7 encodes the signal C output from this screen data section 11 onto a display @m, and outputs it to a display 12, and a video When the access signal Q is received from the control section 5, the signal °C output from the drawing data section 11 is captured and recorded, and when the access signal Ω during playback is received, the recorded image is read out and sent to the screen data section as a signal @n. When an access signal is received from the recording unit 9 and the video Ill 111 unit 5, the read signal @n of the image read out from the recording unit 8 is stored as a still image, and when an access signal is received during playback, It is composed of a still image storage section 10 that sends the still image to a screen data section 11 as a readout signal j.

Note that the mark indicating the image position or part of the photographed image is a switch attached to the video tdjtiD unit 5.

The cursor on the keyboard 130 or a mouse for cursor control is provided. Further, the time at which a photographed image is taken is outputted as display information by a clock function built into the video control unit 5.

Next, the operation of the device internal diagnostic device configured as described above will be described.

First, light d emitted from the light source section 6 is emitted from the optical system of the video control section 5, and is irradiated into the pipe of the condenser 1, which is the section to be inspected, through an optical fiber. Then, when the optical signal detected by the video probe is introduced into the scope 3, it becomes an imaging signal a and is taken into the input section 4. The image signal a taken into the input section 4 is converted into a digital signal C and inputted to the video control section 5. This video control section 5 provides screen information 1 created based on the digital signal C to a screen data section 11, and also provides a selection signal f to a drawing storage section 8 in which drawing information is stored.

In this screen storage section 8, the drawing information k determined by the selection signal f is sent to the screen data section 11. The screen data section 11 sends out to the output section 7 a signal β in which the screen information i from the video control section 5 and the corresponding drawing information k from the drawing storage section 8 are superimposed. The output section 7 encodes this signal 2 into a display signal m and outputs it to the display 12 to display the Ill picture show and its conceptual diagram or projection diagram.

FIG. 2 shows an example of drawing information displayed on the screen of the display 12. In the figure, 14 is a projected view of the condenser 1, and an image [15] as seen through a scope is displayed therein. The image position 1115 is an attached switch of the video control unit 5, a keyboard cursor, or a cursor I.
It is set by the mouse for IIIIII. Further, the time information 15 is displayed by a clock mechanism built into the video control section 5, so that changes in the situation over time can be seen.

Next, the operation when recording and playing back will be described. 1st
In the figure, when an access signal Q is given from the video control unit 5 to the recording unit 9 when photographing the inside of the condenser 1, a signal °C in which drawing information is superimposed on the screen information output from the screen data unit 11 is captured. , will be recorded. In addition, to play the video image recorded in this recording section 9, a video 61110 is used.
When the playback access signal 9 is supplied from the section 5 to the recording section 9, the video image information recorded in the recording section 9 is read out as a readout signal n to the screen data section 11, and the output section 7
is displayed on the video screen of the display 12. At this time, if there is an image that you want to store as a still image, the video control section 5 gives an access signal to the still image storage section 10, so that the image at the time of recording and playback is read out from the recording section 9 to the screen data section 11. One information is the still image storage unit 1
It is stored in o. Furthermore, when an access signal is given to the still image storage section 10 from the video control section 5 during playback,
The still image information stored in the still image storage section 10 is read out to the screen data section 11 as a readout signal j, and displayed on the video screen of the display 12 through the output section 7.

FIG. 3 shows an example of a reproduced image displayed on the screen of the display 12. In FIG. 3, image 1 is a moving image that is a reproduction of an image recorded in the recording section 9, and image 2 is a moving image obtained by reproducing still image information stored in the still image storage section 10, and reducing the display area to 1/4. This is what is displayed. In this case, the position of the image 2 displayed on the display screen of the display device 12 is determined from the image 3 to
6 can be set at any position, so that it is possible to see the part of the image *i that is hidden by the image 12 in FIG.

In this way, in this embodiment, when diagnosing the inside of the condensing H1, the video control section 5 sends screen information to the screen data section 11, and also sends a selection signal to the drawing storage section 8.
By reading out a conceptual diagram or a projection diagram of the corresponding equipment under test from and providing it to the screen data unit 11, a condensed image is displayed on the video screen of the display unit 12 together with a mark representing the m-image image position and time information. ! Since it is possible to display the projected image overlaid on a part of the 11100 captured image, it is possible to determine the position and time following the movement of the video image, making it easy to determine abnormalities and repair locations. can be done.

Also, when screen information at the time of shooting is recorded in the recording section 9 and played back on the video screen of the display 12, an arbitrary recorded image from among the recorded images is stored in the still image storage section 10 as a still image.
By storing the still images in the memory, it is possible to read out and display still images as part of the video being played, so it is possible to read out and display still images as part of the video being played. Comparisons and changes over time can be easily checked on the display screen.

These things will greatly contribute to improving the accuracy and speeding up in-device 8II diagnosis.

FIG. 5 is a block diagram showing another embodiment of the present invention.

In the figure, the same parts as in FIG. 1 are denoted by the same reference numerals, and only the structures different from those in FIG. 1 will be described here. That is, in this embodiment, the still image storage unit 10 is capable of storing still images N111 to NQ4, and an arbitrary number of still images can be stored and reproduced by the control signal e from the keyboard 13.

Therefore, in such a configuration, if still images are selected and displayed in images 113 and 4 as shown in FIG. The video from part 9 is displayed. Furthermore, when all four frames are selected as still images, they can be used as snapshots showing changes over time in the inspected area.

[Effects of the Invention] As described above, according to the present invention, when diagnosing the inside of a device to be tested, the conceptual diagram or projected diagram of the device to be tested stored in the drawing storage means is read out and displayed on the screen of the display. The image is displayed superimposed on a part of the dominant image inside the device to be inspected, which is displayed together with the mark representing the m-image image position and the time of photographing.
Further, when the recorded information is played back, the still image is displayed on the screen of the display device alongside the recorded image by the recording means in which image information at that time is recorded and the still image storage means in which arbitrary recorded information is stored as a still image. Therefore, it is possible to provide an equipment internal diagnostic device that can easily determine abnormal locations and easily confirm changes over time by comparing current and past data.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the device internal diagnosis device according to the present invention, FIGS. 2 to 4 are display state diagrams of a display screen for explaining the operation of the embodiment, and FIG. FIG. 3 is a block configuration diagram showing main parts of another embodiment of the present invention. 2...Diagnostic device body, 3...Scope, 5...Video control unit, 8...Drawing storage unit, 9...Recording Section, 10... Still image storage section, 11... Drawing data section, 12...
...Display unit, 13...Keyboard.

Claims (1)

[Claims] The video probe of an industrial endoscope is inserted into the equipment under test, and the control unit processes the captured images obtained through the video probe into the information necessary for display and displays it on the screen of the display unit. In an equipment internal diagnosis device configured to diagnose an internal situation, the control unit includes an operating means for selecting and specifying a screen display method, a drawing storage means storing a conceptual diagram or a projected diagram of the equipment to be inspected, and an image of the equipment. comprising a recording means for recording a photographed image with a mark indicating the position and a photographing time, and a still image storage means for storing an arbitrary recorded image as a still image from among the recorded images recorded in the recording means, The control unit reads out a corresponding conceptual diagram or projection diagram from the drawing storage unit according to the display method selected and specified by the operating unit, and displays the conceptual diagram or projection diagram on a part of the photographed image displayed on the screen of the display device. a first function and a second function of reading out and displaying a still image stored in the still image storage means as a part of the recorded image read out from the recording means and reproduced on the display device. An equipment internal diagnostic device characterized by the fact that it is durable.