JPH0942944A - Skin quality evaluation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shortly and quantitatively evaluate the skin quality with regard to a high glossy polish skin. SOLUTION: A glossimeter 1 consisting of a measuring part 11, a processing part 12, and a transmitter 13 measures the degree of glossiness at a predetermined measuring point, and makes radio transmission of it to a quality judging device 3 through the transmitter 13. An image clearness measuring unit 2 consisting of a measuring part 21, a processing part 22, and a transmitter 23 measures the image clearness at the measuring point, and radio-transmits it to the quality judging device 3. The quality judging device 3 receives the measured data sent from both the glossimer 1 and the image clearness measuring unit 2 by a receiver 31 for recording them into a data recording part 32, and the evaluation of the skin quality is carried out by comparing them with an evaluation criterion by an acceptance judging part 33, and the measured data, acceptance judgment result, and the differences between the measured data and an evaluation criterion, or the like are displayed on a display unit 4 by the control of a display function control part 34, or are sent to a printer 5 for printing out them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin quality evaluation device for evaluating the quality of a high-gloss polish skin for aircraft and the quality of a painted surface of an automobile body or the like.

[0002]

2. Description of the Related Art Conventionally, for example, a part of an outer panel of an aircraft, a painted surface of an automobile body, and the like are mirror-finished, and it is necessary to inspect the degree of finishing. In the case of inspecting the degree of mirror finish, that is, the skin quality, conventionally, an operator visually confirms and evaluates the degree of reflection of an object and the degree of reflection of light on the outer plate surface.

[0003]

However, if the operator visually evaluates the skin quality as in the above-mentioned conventional method, the evaluation value may vary depending on the individual's sensitivity and experience.
There is a problem that it cannot be evaluated quantitatively.

As a method for quantitatively evaluating the skin quality, it is possible to measure the two characteristics of the surface to be measured, that is, the glossiness and the image clarity, with a measuring device. If an existing glossiness and image sharpness measuring device is used to measure the above two characteristics, it is necessary to manually record each characteristic value. Further, in the pass / fail judgment, both of the recorded characteristic values are manually overlaid on the graph, and it is determined whether or not the both characteristic values are within a certain range, and it takes time for the determination. Become.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a skin quality evaluation apparatus capable of quantitatively evaluating the skin quality of a high-gloss polished skin in a short time. .

[0006]

A skin quality evaluation apparatus according to the present invention irradiates the surface of an object to be evaluated with light from a light source and measures the amount of reflection of the light to determine the glossiness of the surface. A gloss meter that determines and wirelessly transmits, an inspection pattern is projected on an evaluation target, the shape of the mapped pattern is measured, and an image sharpness measuring device that determines and analyzes the image sharpness and wirelessly transmits it, A quality judging device for receiving the measurement results transmitted from the gloss meter and the image sharpness measuring device, recording the result in a data recording unit, and evaluating the skin quality by comparing it with an evaluation standard, and a judgment by the quality judging device. And an output device for outputting the result.

(Operation) First, the glossiness of a preset measurement point is measured by the glossiness meter, and the measurement data is wirelessly transmitted to the quality judgment device. Next, the image sharpness measuring device measures the image sharpness at the measurement point, and the measured data is wirelessly transmitted to the quality judgment device. The quality determination device receives the measurement data sent from the gloss meter and the image sharpness measuring device and records it in the data recording unit, evaluates the skin quality in comparison with the evaluation standard, and measures the data.
The pass / fail judgment result, the difference between the measurement data and the evaluation standard, etc. are displayed on the display unit or printed out by a printer.

As described above, the pass / fail judgment for glossiness and image clarity is made by comparison with a quantitative evaluation standard instead of the visual evaluation and the pass / fail judgment by experience, so that there is no individual difference and stable skin quality is obtained. The evaluation can be done in a short time.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a skin quality evaluation apparatus according to an embodiment of the present invention. The skin quality evaluation apparatus according to the present invention comprises a gloss meter 1 for measuring the glossiness (polishing condition) of the surface of an object to be evaluated, a map sharpness measuring device 2 for measuring the image clarity of the surface of the object to be evaluated, and measurement data. It comprises a quality judgment device 3 for judging quality, a display unit 4 for displaying the measurement result and the judgment result, and a printer 5 for printing the measurement result and the judgment result.

The gloss meter 1 includes a measuring unit 11 and a processing unit 1.
2. The transmitter 13 is used to convert the measurement data into a high-frequency signal, which is transmitted from the transmitter 13 to the quality determination device 3 via the antenna 14. The transmitter 13 includes a transmission switch 15 and performs a transmission operation only when the transmission switch 15 is operated.

The image sharpness measuring device 2 comprises a measuring unit 21, a processing unit 22 and a transmitter 23, which converts the measurement data into a high frequency signal and transmits it from the transmitter 23 to the quality judging device 3 via the antenna 24. . The transmitter 23 is the transmission switch 2
5, the transmission operation is performed only when the transmission switch 25 is operated.

The quality judgment device 3 comprises a receiver 31, a data recording section 32, a pass / fail judgment section 33, and a display function control section 34. The receiver 31 receives the measurement data sent from the gloss meter 1 or the image sharpness measuring device 2 from the antenna 35.
And is recorded in the data recording unit 32. A large amount of data can be recorded in the data recording unit 32. The pass / fail determination unit 33 performs a determination process for the measurement data recorded in the data recording unit 32, a determination process for determining whether or not both measurement data have been obtained, and a pass / fail determination process for both measurement data, and records the determination result as data. Record in section 32. The acceptance / rejection determination process by the acceptance / rejection determination unit 33 is performed by comparing the measurement data with a quantitative evaluation standard. The display function control unit 34 reads out the measurement data, the pass / fail judgment result, and the like recorded in the data recording unit 32, and displays the display unit 4 and the printer 5.
Output to

The above-mentioned gloss meter 1 is used by being mounted on the surface of the evaluation object 41 as shown in FIG. 2 at the time of measurement, and the measuring section 11 is equipped with a light source 16 and a light receiver 17. . The light source 16 is provided with respect to the measurement surface 42 of the evaluation object 41.
Light is emitted from the normal line 43 at a constant angle, for example, 20 °. The light receiver 17 is arranged in a position symmetrical with respect to the light source 16 with respect to the normal line 43, and the reflected light from the measurement surface 42 is incident on the light receiver 17. The light receiver 17 is
An electric signal corresponding to the incident light is output and input to the processing unit 12. The processing unit 12 calculates the ratio of the amount of light emitted from the light source 16 and the amount of light reflected by the measurement surface 42 and input to the light receiver 17 to calculate the glossiness, and records the calculated data in the internal memory. To do. The glossiness measurement data recorded in the memory is transmitted from the transmitter 13 to the quality determination device 3 when the transmission switch 15 is operated.

Further, as shown in FIG. 3, the image clarity measuring device 2 is used by being mounted on the surface of the evaluation object 41 as in the case of the gloss meter 1. The measuring unit 21 of the image sharpness measuring device 2 includes a light source 26, a condenser lens 27, an inspection pattern such as a grid pattern 28, a mirror 29, and an image sensor 30. A condenser lens 27 and a grid pattern 28 are mounted on the front surface of the light source 26. The light from the light source 26 is condensed by the condenser lens 27 and is irradiated onto the measurement surface 42 of the evaluation object 41 via the grid pattern 28. As a result, the measurement surface 42
The image of the grid pattern 28 is projected onto the image sensor 30, and the reflected light is further reflected by the mirror 29 to be reflected by the image sensor 30.
Incident on. The image sensor 30 converts incident light, that is, a mapping of the grid pattern 28 projected on the measurement surface 42 into an electric signal and inputs the electric signal to the processing unit 22.

FIGS. 4A and 4B show display examples of the image sensor 30. In the figure (a), the reflection map of the grid pattern 28 on the measurement surface 42 is clearly displayed, and in the case of “sharpness: good”, the figure (b) shows the reflection map of the grid pattern 28 on the measurement surface 42. This is the case of "sharpness: bad" displayed in a blurred manner.

The processing unit 22 calculates the degree of distortion of the reflection pattern output from the image sensor 30, and records the data in the internal memory. The image clarity measurement data recorded in this memory is transmitted from the transmitter 13 to the quality determination device 3 when the transmission switch 15 is operated.

Next, the operation of the above embodiment will be described. When starting the measurement, first, the measurement point setting screen shown in FIG. 5A is displayed on the display unit 4 by the control of the display function control unit 34 in the quality determination device 3. On this screen, for example, a plurality of measurement points arranged in a grid pattern and the numbers of the measurement points are displayed. In this state, the measurement point number of the evaluation object this time is designated. For example, when setting measurement points in the shape of a triangle,
3 points of 3,7 or 6 of 1,3,5,7,9,13
Specify a point. The number of measurement points set in this way is stored in the acceptance / rejection determination unit 33, and is used to determine whether or not the measurement process ends, as described later.

After setting the measurement point as described above, the gloss meter 1 is manually or automatically moved onto the first measurement point to measure the gloss, and after the measurement, the transmission switch 15 is operated. And measure the measured data to determine the quality 3
Send to Next, the image sharpness measuring device 2 is manually or automatically moved to the first measurement point where the above glossiness measurement is finished to measure the image sharpness, and after the measurement, the transmission switch 25 is operated to measure the measured data. Is transmitted to the quality judgment device 3. In the same manner, the gloss meter 1 is placed on each operation point in the same manner.
The image sharpness measuring device 2 is sequentially moved to perform the measurement operation, and the measurement result is transmitted to the quality judgment device 3.

The quality judgment device 3 executes the processing shown in the flowchart of FIG. 6 by receiving the measurement data sent from the gloss meter 1 and the image sharpness measuring instrument 2. The acceptance / rejection determination unit 33 of the quality determination device 3 determines whether or not the data input for all the measurement points is completed (step A1). If the data input for all the measurement points is not completed, the following processing is performed. When the data input for all the measurement points is completed, the process is ended.

When the measurement data is sent from the gloss meter 1 or the image sharpness measuring instrument 2, the quality judging device 3 receives the measurement data by the receiver 31, and the data recording section 32.
It is input to the pass / fail judgment unit 33 via. Pass / fail judgment unit 33
Determines whether the received data is glossiness data or mapping sharpness data (step A2), and if neither, displays an error (step A3). If the received data has a gloss level, it is stored in a predetermined area of the data recording unit 32 (step A4). This data recording unit 3
The data stored in 2 is read by the display function control unit 34 and displayed on the display unit 4 as shown in FIG. 5B (step A5). On this display screen, display items of "measurement point number", "glossiness", "definition", "pass / fail", "glossiness difference", and "definition difference" are provided. At this point, the "measurement point number" and "glossiness" are displayed. After that, the process proceeds to step A8, and it is determined whether or not both the glossiness data and the mapping sharpness data are complete. If both data are not available, the process returns to step A1.

Next, when the measurement data is sent from the image sharpness measuring device 2 to the quality judging device 3, the pass / fail judgment unit 33 judges that the received data is the image sharpness data,
The data is stored in the data recording unit 32 (step A6). The data stored in the data recording section 32 is read by the display function control section 34 and displayed on the display section 4 as shown in FIG. 5B (step A7). At this point, the "definition" is displayed together with the "measurement point number" and the "glossiness".

Then, for example, when both the glossiness data and the image clarity data at the designated measurement point number 1 are prepared, that state is detected in step A8, and step A9 is detected.
Then, the acceptance / rejection determination is made by the acceptance / rejection determination unit 33.
That is, the pass / fail determination unit 33 reads out both the glossiness data and the mapping sharpness data from the data recording unit 32, determines whether or not the glossiness data is greater than or equal to the reference value, and calculates the difference from the reference value, The result is recorded in the data recording unit 32. The result of the pass / fail judgment recorded in the data recording unit 32 and the difference from the reference value are read by the display function control unit 34, sent to the display unit 4, and displayed as shown in FIG. Step A10). Further, at this time, the display function control unit 34
On the measurement point setting screen shown in FIG. 5A, a green indicator light is turned on when the point is set, and a red indicator light is turned on when the point is not passed.

Then, the process returns to step A1. In this step A1, the counter is incremented by 1 each time the pass / fail judgment of each set point is made, and it is judged whether or not the count value has reached the preset set point number. If it has not reached, it is determined that the input has not been completed and the next data reception is prepared.

Similarly, the quality determination device 3 receives the gloss level data sent from the gloss meter 1 and the image sharpness data sent from the image sharpness measuring device 2 in the same manner, and the quality determination process is performed. The determination result is recorded in the data recording unit 32 and displayed on the display unit 4. Then, when the value of the counter for counting the number of pass / fail determinations becomes equal to the set point number, the pass / fail determination unit 33 detects the state in step A1 and ends the pass / fail determination processing. Further, at this time, the pass / fail judgment unit 33 sends a printout instruction to the display function control unit 34. Accordingly, the display function control unit 34 outputs the measurement result and the determination result displayed on the display unit 4 to the printer 5 and prints them out. In this case, each time the measurement data is received from the gloss meter 1, the image sharpness measuring instrument 2, and each time the measurement data is determined, each data may be sent to the printer 5 and sequentially printed out.
Alternatively, the printer 5 may be operated by giving a print command by a key operation.

As described above, by simply measuring the evaluation object 41 with the gloss meter 1 and the image clarity measuring device 2, it is possible to automatically determine whether the object is acceptable or not. Moreover, since the pass / fail judgment is made by comparison with a quantitative evaluation standard, not by visual evaluation or experience judgment, it is possible to carry out stable skin quality evaluation without individual differences. Further, since a large amount of data is recorded in the data recording section 32, the recorded data can be immediately and arbitrarily read out and displayed on the display section 4 as needed.

Further, the gloss meter 1 and the image clarity measuring device 2
Is configured to transmit the measurement data to the quality determination device 3 when the transmission switches 15 and 25 are operated.
Power consumption can be reduced. Since the skin quality evaluation apparatus according to the present invention is required to perform an evaluation operation by arbitrarily moving in a factory, for example, a battery is usually used as an operation power source. Therefore, the transmitter 1 can be operated only when the transmitting switches 15 and 25 are operated as described above.
By operating 3 and 23, the power consumption can be reduced and the life of the battery can be greatly improved.

[0027]

As described above, according to the present invention, the acceptance / rejection determination for glossiness and image clarity is made by comparison with a quantitative evaluation criterion, not by visual evaluation or experience determination. Therefore, there is no individual difference, and stable skin quality evaluation can be performed in a short time. Further, since a large amount of data is recorded in the data recording section of the quality judging device, the recorded data can be immediately and arbitrarily read out and displayed on the display section 4 as needed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a skin quality evaluation device according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a gloss meter according to the same embodiment.

FIG. 3 is a schematic configuration diagram of a mapping sharpness measuring device in the same embodiment.

FIG. 4 is a diagram showing a display example of an image sensor in the image sharpness measuring device in the same embodiment.

FIG. 5 is a diagram illustrating setting of measurement points for an evaluation target on the display unit according to the same embodiment.

FIG. 6 is a flowchart illustrating a skin quality evaluation operation in the same embodiment.

[Explanation of symbols]

 1 Gloss meter 2 Image sharpness measuring device 3 Quality judgment device 4 Display unit 5 Printer 11,21 Measuring unit 12,22 Processing unit 13,23 Transmitter 14,24 Antenna 15,25 Transmission switch 16,26 Light source 17 Light receiving Device 27 Condenser lens 28 Lattice pattern 29 Mirror 30 Image sensor 31 Receiver 32 Data recording unit 33 Pass / fail judgment unit 34 Display function control unit

Claims (1)

[Claims] 1. A gloss meter for radiating light from a light source onto the surface of an object to be evaluated and measuring the amount of reflection of the light to determine the glossiness of the surface and wirelessly transmit it, and an inspection pattern. It is transmitted from the image sharpness measuring instrument that projects on the evaluation object, measures and analyzes the shape of the imaged pattern to determine the image sharpness, and wirelessly transmits it, and the gloss meter and the image sharpness measuring instrument. It is characterized by comprising a quality judgment device for receiving the measurement result, recording it in a data recording part, and comparing it with an evaluation standard to evaluate the skin quality, and an output device for outputting the judgment result by this quality judgment device. Skin quality evaluation device.