JP2002214251A - Measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring apparatus which facilitates the displaying of images with a size enough to fit a display screen. SOLUTION: A controller 4 is provided with data processing means 6, 6a and 6b for optimum images which convert analog data to optimum images displayable with a size enough to fit the display screen and has optimum image selection means 7 and 8 which switch images to be displayed to optimum images with a manual device. This facilitates the displaying of the optimum image with a simple device when any image to be displayed deviates from the display screen due to zooming, scrolling or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a measuring device,
In particular, the present invention relates to a measurement device capable of displaying analog data detected by a detection device as an image on a display screen of a display device.

[0002]

2. Description of the Related Art Conventionally, time, pressure, temperature, humidity, speed, acceleration, displacement, distance, weight, flow rate, level, current,
Analog data consisting of continuous physical quantities such as voltage, resistance, power, sound, and the output of a device such as the laser output of a laser oscillator are converted into electrical signals by a detection device and detected, and this analog data is converted into image data. 2. Description of the Related Art Measuring devices that can convert and display analog data images on a display screen of a display device are known.

In order to stabilize the welding quality as one type of such a conventional measuring device, a welding state of a welding machine, for example, a welding current, a pressing force, an energizing time and the like are detected, and the detection result is displayed as an image. There is a measuring device for welding that can be used.

In this welding measuring apparatus, a welding current, a pressing force, an energizing time, and the like are extracted as electric signals by a sensor to form image data, and based on the image data, analog data of a detection result is displayed on a display screen of a display device. Images can be displayed. Also, as an image to be displayed on the display screen, for example, an image in which the horizontal axis is a time axis and the vertical axis is a current value or a pressing force, and the horizontal axis is a time axis, and the vertical axis is a current value and a pressing force, these are simultaneously displayed. It can be displayed as an image. Further, the image displayed on the display screen can be operated alone or in combination with operations such as zooming and zooming of at least one of the vertical and horizontal axes and scrolling the image. Note that zooming, scrolling, and the like of an image displayed on the display screen are performed by performing image editing of image data based on input from an input unit such as an operation input switch.

[0005]

However, in the conventional welding measuring apparatus described above, when an operation such as zooming or scrolling of an image displayed on the display screen is performed, an image to be displayed is displayed on the display screen. May come off.
As described above, when the image deviates from the display screen, there is a problem that it takes time to return the image to the display screen. This is particularly noticeable when enlargement and scrolling are combined a plurality of times.

Therefore, there is a need for a measuring device capable of easily displaying an image having a size that fits a display screen.

[0007] The present invention has been made in view of these points, and an object of the present invention is to provide a measuring apparatus capable of easily displaying an image having a size that fits a display screen.

[0008]

In order to achieve the above-mentioned object, a feature of the measuring device of the present invention according to claim 1 is that the control device has a size that fits the display screen of the display device. The point is that an optimum image display means for displaying an optimum image is provided. By adopting such a configuration, it is possible to easily display an optimal image having a size that fits the display screen of the display device.

According to a second aspect of the present invention, the optimal image display means converts the analog data into optimal image data that can be displayed in a size that fits the display screen of the display device. Data processing means and an optimum image selecting means for switching an image displayed on the display screen of the display device to an optimum image based on the optimum image data by manual operation. By employing such a configuration, when an image to be displayed deviates from the display screen, an optimal image having a size that fits the display screen of the display device can be easily displayed by a simple operation by a human. be able to.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a block diagram showing a configuration of a main part of an embodiment of a welding measuring apparatus to which a measuring apparatus according to the present invention is applied.

In this embodiment, the measuring device according to the present invention is applied to a welding measuring device for detecting a welding state of a welding machine.

As shown in FIG. 1, a welding measuring device 1 as a measuring device of the present embodiment has a detecting device 2, a display device 3, and a control device 4.

The detecting device 2 includes an energizing sensor for detecting a welding current at the time of welding, a pressure sensor for detecting a pressing force at the time of welding, and an energizing pressure sensor for simultaneously detecting the welding current and the pressing force at the time of welding. Are used.

The display device 3 includes a liquid crystal display device,
A CRT or the like is used.

The control device 4 includes at least a CPU 5
And a memory 6 formed of ROM, RAM or the like having an appropriate capacity. The detection device 2, the display device 3, the operation panel 7, and the like are electrically connected to the control device 4. The operation panel 7 includes a display device 3.
, An optimum image display switch 8 used for displaying an optimum image described later on the display screen, a welding data selection switch 9 used for selectively displaying measurement data to be displayed on the display screen of the display device 3, and a power supply (not shown) on / off. Power switch used for setting, operation input switch used for setting the direction and amount of setting and zooming and scrolling of the image being displayed, hold switch used for holding the measurement result, and function selection Various switches such as a function switch to be used and a determination switch to be used when determining each operation are provided. In addition,
It is preferable that the control device 4 be provided with an external output terminal for outputting data to a recording device, a computer, or the like used as necessary.

The memory 6 of the control unit 4 is provided with a program storage unit 6a for storing at least a program for controlling the operation of the control unit 4, and a data storage unit 6b for storing data. Note that a configuration is also possible in which a plurality of memories 6 are provided, and the program storage unit 6a and the data storage unit 6b are provided in the individual memories 6.

The following programs can be exemplified as the programs stored in the program storage section 6a.

The first program displays analog data (measurement data) of welding data, such as welding current and pressing force, which change with time detected by the detection device 2 on a display unit 3 for each preset measurement unit. The image data is converted into normal image data that can be displayed on a screen.

The second program fits analog data of welding data, such as welding current and pressing force, which change with time detected by the detection device 2 to the display screen of the display device 3 for each preset measurement unit. The image data is converted into optimal image data that can be displayed in a size. Note that the optimum image in the present embodiment refers to an image that displays the entire measured welding data using the entire display screen, but the present invention is not limited to this. What is necessary is just to display on the screen so that the entire welding data can be grasped, and there is no problem even if the horizontal axis or the vertical axis of the welding data slightly protrudes from the display screen. Conversely, the entire display screen need not be used, and the object of the present invention can be achieved even if the display screen is displayed a little smaller.

The third program associates normal image data and optimal image data in pairs. For example, address data for storing the normal image data and the optimum image data as a pair in the data storage unit 6b is added. Therefore, it is preferable to provide the control device 4 with an address output circuit that outputs address data formed by an electric signal.

The fourth program is to add history data to the associated normal image data and optimal image data. Therefore, a history data output circuit for outputting history data formed by the electric signal is connected to the control device 4.
Is preferably provided.

The fifth program is to store the normal image data and the optimal image data, which are associated with each other and have the history data, as a set in the data storage unit 6b.

The sixth program always edits the normal image data stored in the data storage section 6b so that the image has a predetermined size, and then executes the image editing.
And displays an image of the measurement result on the display screen of the display device 3, for example, a waveform in which the horizontal axis is a time axis and the vertical axis is at least one of a current value and a pressing force.

The seventh program performs image editing on the image data being displayed on the display screen of the display device 3 based on the set value input from the operation input switch of the operation panel 7 so that the display device 3 The user performs operations such as zooming and scrolling the image displayed on the display screen.

The eighth program outputs the optimum image data stored in the data storage section 6b to the display device 3 based on the input signal inputted from the optimum image display switch 8 of the operation panel 7, and outputs the optimum image data to the display device 3. Is to display an optimal image of a size that fits the display screen of FIG. The optimum image display switch 8 is turned on when an image to be displayed is out of the display screen when an operation such as zooming or scrolling of the image displayed on the display screen of the display device 3 is performed.

The ninth program is a program for storing the most history data among the data stored in the data storage unit 6b when the amount of data stored in the data storage unit 6b exceeds the capacity of the data storage unit 6b secured in advance. Is stored by replacing the old one with the newly stored data. At this time, the oldest data of the history data stored in the data storage unit 6b is such that one set of history data, normal image data, and optimal image data is replaced with new historical data, normal image data, and optimal image data. It has become.

The program stored in the program storage section 6a includes a program for controlling an initial operation and necessary measurement values such as a current value and a conduction time from an instantaneous value of a welding current, for example, an effective value of a welding current. There are various programs such as a program for calculating a value and an average value.

According to the second program stored in the program storage section 6a of the memory 6, the analog data of the present embodiment is converted into optimum image data which can be displayed in a size which fits the display screen of the display device 3. An image data processing means is configured.

The eighth program stored in the program storage section 6a of the memory 6 and the optimum image display switch 8 allow the image to be displayed on the display screen of the display device 3 of the present embodiment to be optimized by manual operation. The optimum image selecting means for switching to the optimum image based on the image is constituted.

The optimal image data processing means and the optimal image selecting means constitute an optimal image display means for displaying an optimal image of a size which fits the display screen of the display device 3 of the present embodiment.

The welding measuring apparatus 1 according to the present embodiment comprises:
The detection device 2 is detachably connected to the control device 4 by a connector, so that the detection device 2 can be replaced according to the measurement items.

Further, the measuring device for welding 1 of the present embodiment.
Can be downsized. For example, the control device 4, the display device 3, and the operation panel 7 are 250 mm long and 100 mm wide.
mm and a thickness of about 53 mm. In this case, the detection device 2 is preferably configured to be connected to the control device 4 by a connector. Further, as the display device 3, it is preferable to use a small liquid crystal display device 3.

Next, the operation of the present embodiment having the above-described configuration will be described.

According to the welding measuring apparatus 1 of the present embodiment,
Welding conditions by a welding machine (not shown), such as welding current,
Analog data such as pressure and energizing time are displayed on the display device 3
Displayed on the display screen as an image, for example, an image in which the horizontal axis is the time axis and the vertical axis is the current value or pressure, the horizontal axis is the time axis, the vertical axis is the current value and the pressure, and these are displayed simultaneously. it can. FIG. 2 shows an example of an image displayed on the display screen when the horizontal axis is a time axis and the vertical axis is a current value and a pressing force.

Further, according to the welding measuring apparatus 1 of the present embodiment, by operating the operation input switch (not shown) of the operation panel 7, the image editing of the image displayed on the display screen of the display device 3 is performed. For example, zooming and scrolling can be easily performed.

Further, according to the welding measuring apparatus 1 of the present embodiment, the optimum image can be displayed on the display screen of the display device 3 by turning on the optimum image display switch 8 of the operation panel 7. That is, when an operation such as zooming or scrolling is performed on an image being displayed on the display screen of the display device 3 shown in FIG. 2, for example, as shown in FIG. In this case, by turning on the optimum image display switch 8 of the operation panel 7, the optimum image can be easily displayed on the display screen of the display device 3 as shown in FIG. Therefore, when the image to be displayed is out of the display screen, the time required for the operation of returning the image to the display screen can be extremely reduced. Therefore, when the image to be displayed comes off the display screen,
With an easy manual operation, an optimal image having a size that fits the display screen of the display device 3 can be easily displayed.

Furthermore, according to the welding measuring apparatus 1 of the present embodiment, by operating the welding data selection switch 9, the associated data sequentially stored in the data storage unit 6 b of the memory 6 and the history data are added. It is possible to switch and display an image based on the normal image data and the optimum image data that have been input. That is, by operating the welding data selection switch 9, an image of any measurement data of the plurality of measurement data can be displayed on the display screen of the display device 3.

Further, according to the welding measuring apparatus 1 of the present embodiment, when the amount of data stored in the data storage section 6b exceeds the capacity of the data storage section 6b secured in advance, the data is stored in the data storage section 6b. Out of the stored data, the oldest data can be replaced with newly stored data and stored.

It should be noted that the present invention is applied to the time, pressure, temperature, humidity, speed, acceleration, displacement, distance, weight, flow rate, level,
The present invention can be used for a measuring device that measures analog data consisting of continuous physical quantities such as current, voltage, resistance, power, sound, and output of a device such as a laser output of a laser oscillator.

The present invention is not limited to the above embodiment, but can be variously modified as needed.

[0042]

As described above, according to the measuring apparatus of the first aspect of the present invention, it is possible to easily display an optimal image having a size that fits a display screen of a display device, and the like. It works.

Further, according to the measuring apparatus of the present invention, when an image to be displayed deviates from the display screen, the size of the measuring apparatus can be adjusted to a size that fits the display screen of the display device by a simple operation by hand. An extremely excellent effect such as easy display of the optimum image is achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of an embodiment of a welding measuring apparatus to which a measuring apparatus according to the present invention is applied.

FIG. 2 is an explanatory diagram showing an example of an image displayed on a display screen in the welding measuring apparatus shown in FIG.

FIG. 3 is an explanatory diagram showing an example of a case where an image to be displayed in the welding measuring apparatus shown in FIG. 1 has deviated from a display screen.

FIG. 4 is an explanatory diagram showing an example of a state in which an optimal image is displayed on a display screen in the welding measuring apparatus shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Measuring device for welding 2 Detecting device 3 Display device 4 Control device 5 CPU 6 Memory 6a Program storage unit 6b Data storage unit 7 Operation panel 8 Optimal image display switch 9 Welding data selection switch

Claims (2)

[Claims] A display device for converting the detected analog data into image data, storing the converted data in a memory, displaying an image of the analog data on a display screen of the display device based on the image data stored in the memory; A control device for performing image editing of an image being displayed on a display screen of a display device, wherein the control device displays on the control device an optimal image having a size that fits the display screen of the display device. A measuring device characterized by comprising: 2. An optimum image data processing means for converting the analog data into optimum image data which can be displayed in a size fitting the display screen of the display device, and a display of the display device. 2. The measuring apparatus according to claim 1, further comprising an optimum image selecting unit that switches an image displayed on a screen to an optimum image based on the optimum image data by manual operation.