JP2020170016A - Environmental test equipment and environmental test method - Google Patents

Abstract

To reproduce an environment in a chamber where it is necessary to adjust the parameters that are difficult to measure by a sensor.SOLUTION: An environmental test equipment 1 includes a chamber in which a sample is stored; a camera 4 which photographs the inside of the chamber; an environmental management device 2 which adjusts the interior environment of the chamber; a first acquisition unit 11 which acquires a first one or more pictures photographed in one or more site environments where it is assumed that a sample is actually put; a determination unit 12 which determines a second picture from the first one or more pictures based on an instruction of a user for selecting the second picture showing the site environment of an object reproduced in the chamber; a second acquisition unit 13 which acquires a first color spectrum from the second picture; a generation unit 15 which generates a second color spectrum from a third picture photographed with the camera 4; and an adjustment unit 17 which makes the environmental management device 2 adjust the environment in the chamber so that the second color spectrum matches the first color spectrum.SELECTED DRAWING: Figure 1

Description

The present invention relates to an environmental test apparatus and an environmental test method for adjusting the internal environment of a test tank.

Conventionally, as described in Patent Document 1 below, in order to test the performance of a sample in a state of dew condensation, it has been known that the amount of dew condensation on the sample is calculated from an image of the surface of the sample installed in the test chamber. Has been done. Then, it is known that the environment in the test chamber is adjusted based on the comparison result between the calculated dew condensation amount and the dew condensation amount set by the tester to adjust the sample to the target dew condensation state.

In recent years, advances in sensor technology such as sensing cameras have made it possible to measure various parameters required for control. Further, with the spread of IoT (Internet of Things) technology, parameters measured by a sensor are collected, and the next action is automatically determined based on the analysis result of the collected parameters.

Japanese Patent No. 3113823

Therefore, in order to test the performance of sensors such as sensing cameras used for automatic driving control of automobiles, fog is generated in which a sample is expected to be exposed by using the technique disclosed in Patent Document 1 above. It is conceivable to reproduce the environment in which the sample is placed and the environment in which the sample is irradiated inside the test tank containing the sample. In this case, it is necessary to provide a sensor for environmental control inside the test tank and measure parameters necessary for adjusting the internal environment of the test tank, such as fog density and light illuminance.

However, the moisture of the mist contained in the air inside the test tank and the emitted light shield or reflect the medium such as infrared rays and light used by the environmental control sensor to measure the parameters. For some reasons, it may be difficult to accurately measure the parameters with the sensor. In this case, the measured value of the parameter and the target value of the parameter set by the tester cannot be appropriately compared, and the target environment may not be reproduced inside the sample tank.

The present invention has been made in view of the above circumstances, and provides an environmental test apparatus and an environmental test method capable of reproducing an environment in which adjustment of parameters that are difficult to measure with a sensor is required inside a test tank. The purpose is to do.

In the environmental test apparatus according to the present invention, the test tank in which the sample is housed, the camera that photographs the inside of the test tank, the environmental adjuster that adjusts the internal environment of the test tank, and the sample are actually exposed. Select the first acquisition unit that acquires one or more first images taken in one or more field environments that are expected to occur, and the second image that represents the target field environment to be reproduced inside the test tank. A determination unit that determines the second image from the one or more first images and a second that acquires a first color spectrum showing the distribution of colors included in the second image based on the user's instruction. The acquisition unit, the generation unit that generates a second color spectrum showing the distribution of colors included in the third image captured by the camera, and the generation unit so that the second color spectrum matches the first color spectrum. The environment regulator is provided with an adjusting unit for adjusting the internal environment of the test tank.

Further, the environmental test method according to the present invention includes an environmental test including a test tank in which a sample is housed, a camera for photographing the inside of the test tank, and an environmental adjuster for adjusting the internal environment of the test tank. An environmental test method in an apparatus, in which one or more first images taken in one or more field environments where the sample is expected to be actually exposed are acquired and reproduced inside the test tank. Based on the user's instruction to select the second image representing the site environment of the above, the second image is determined from the one or more first images, and the color distribution included in the second image is shown. The one-color spectrum is acquired, a second color spectrum showing the distribution of colors contained in the third image captured by the camera is generated, and the second color spectrum is matched with the first color spectrum. Let the environment adjuster adjust the internal environment of the test tank.

According to this configuration, the second color spectrum included in the third image taken inside the test tank is the first color spectrum included in the second image taken in the target field environment to be reproduced inside the test tank. The internal environment of the test chamber is adjusted to match.

Therefore, the internal environment of the test chamber represented by the second color spectrum is represented by the first color spectrum without measuring the parameters required to adjust the internal environment of the test chamber. It can be matched with the site environment of the target to be reproduced inside. As a result, an environment that requires adjustment of parameters that are difficult to measure with a sensor can be reproduced inside the test chamber.

Further, the one or more first images are images taken against the background of the sample plate, the test tank includes a sample plate of the same color as the sample plate, and the third image is the same as the sample plate. It is preferable that the image is taken against the background of a sample plate of the same color.

According to this configuration, the background color of the first image determined as the second image and the background color of the third image match. Therefore, when adjusting the internal environment of the test chamber so that the second color spectrum matches the first color spectrum, the time required for the adjustment to match the distribution of the background colors can be shortened. As a result, the site environment can be reproduced more quickly inside the test tank.

Further, a third acquisition unit for acquiring environmental information representing at least a part of the environment when the second image is taken is further provided, and the adjustment unit controls the environment adjuster to control the test tank. After adjusting the internal environment of the test chamber to the environment represented by the environmental information, the internal environment of the test tank may be adjusted so that the second color spectrum matches the first color spectrum.

According to this configuration, the internal environment of the test tank is adjusted to an environment close to the environment when the second image represented by the environmental information acquired by the third acquisition unit was taken, and then the second color spectrum. The environment inside the test chamber is adjusted so that is consistent with the first color spectrum.

For this reason, the second color spectrum is better than if no adjustment was made to the internal environment of the test chamber before adjusting the internal environment of the test chamber so that the second color spectrum matches the first color spectrum. The time required to adjust the internal environment of the test chamber to match the first color spectrum can be reduced. As a result, the site environment can be reproduced more quickly inside the test tank.

Further, the first acquisition unit may acquire the one or more first images from the first database in which the one or more first images are stored in advance.

According to this configuration, the field environment represented by the second image determined from one or more first images stored in advance in the first database can be reproduced inside the test tank. Therefore, the same field environment can be repeatedly reproduced inside the test tank by repeatedly using the same one or more first images as the one or more first images stored in advance in the first database.

Alternatively, in the first acquisition unit, the one or more first images and the shooting information representing at least a part of the environment when each of the one or more first images is shot are associated with each other in advance. The one or more first images are acquired from the stored second database, and the third acquisition unit is associated with the first image determined as the second image in the second database. The shooting information may be acquired as the environmental information.

According to this configuration, the internal environment of the test tank is adjusted to the environment represented by the shooting information associated with the second image determined from one or more first images stored in advance in the second database. After that, it is adjusted to the site environment represented by the second image. This allows the interior of the test chamber to be more internal than if no adjustments were made to the internal environment of the test chamber before adjusting the internal environment of the test chamber so that the second color spectrum matches the first color spectrum. The site environment represented by the second image can be reproduced more quickly.

Therefore, the same one or more shooting information as the one or more shooting information stored in advance in the second database and the same one or more first image as the one or more first image stored in advance in the second database By using it repeatedly, the same field environment can be quickly and repeatedly reproduced inside the test tank.

Further, the one or more field environments may include an environment in which fog is generated.

According to this configuration, the user gives an instruction to select the first image taken in the foggy environment as the second image, so that the fog represented by the second image is generated. Can be reproduced inside the test chamber.

Further, the one or more field environments may include an environment irradiated with light.

According to this configuration, the user gives an instruction to select the first image taken in the light-irradiated environment as the second image, so that the light represented by the second image is irradiated. Can be reproduced inside the test chamber.

In addition, the one or more field environments include an environment in which the first foreign matter is present in the air, and the environment adjuster makes the environment inside the test tank a feature relating to the appearance of the first foreign matter. It may be adjusted to an environment in which a second foreign substance imitating the above is present.

According to this configuration, the user gives an instruction to select the first image taken in an environment in which the first foreign substance is present in the air as the second image, so that the user can instruct the selection of the second image in the air. It is possible to reproduce the pseudo environment in which the second foreign matter is present in the air, which corresponds to the environment in which the first foreign matter is present, inside the test tank.

Further, the one or more first images include a moving image, and when the second image is a moving image, the second acquisition unit determines the distribution of colors included in the image at a predetermined time point in the moving image. The indicated color spectrum may be acquired as the first color spectrum.

According to this configuration, the user gives an instruction to select the first image of the moving image included in one or more first images as the second image, so that the site environment at a plurality of time points represented by the second image is used. Of these, the site environment at a predetermined point in time can be reproduced inside the test tank.

According to the present invention, it is possible to provide an environmental test apparatus and an environmental test method capable of reproducing an environment in which an environment requiring adjustment of parameters difficult to be measured by a sensor is required inside a test tank.

It is a block diagram which shows an example of the functional structure of an environmental test apparatus. It is a figure which shows an example of the schematic structure of a test tank. It is a figure which shows an example of the preparatory work performed before the start of a test in an environmental test apparatus. It is a flowchart which shows an example of the preparatory work performed before the start of a test in an environmental test apparatus. It is a figure which shows an example of the field environment table. It is a flowchart which shows an example of the operation of the test of a sample in an environmental test apparatus. It is a flowchart which shows an example of the operation of the test of a sample in an environmental test apparatus.

(Functional configuration of environmental test equipment)
Hereinafter, an embodiment of the environmental test apparatus and the environmental test method according to the present invention will be described. FIG. 1 is a block diagram showing an example of the functional configuration of the environmental test apparatus 1. FIG. 2 is a diagram showing an example of a schematic structure of the test tank 100. The environmental test device 1 is a device that adjusts the environment in the test tank 100 in which the sample is housed and tests the heat resistance, moisture resistance, vibration resistance, etc. of the sample under the environment.

Specifically, as shown in FIG. 1, the environmental test apparatus 1 includes a control unit 10, an interface unit 5, a display unit 6, an operation unit 7, a storage unit 8 (first database, second database), and an environmental regulator. 2. It is equipped with an environment sensor 3 and a camera 4. Further, as shown in FIG. 2, the environmental test apparatus 1 includes a test tank 100 in which a sample is housed.

The control unit 10 controls each unit included in the environmental test apparatus 1. Specifically, the control unit 10 has a volatile memory such as a CPU (Central Processing Unit) and a RAM (Random Access Memory), and a non-volatile memory such as an EEPROM (Electrically Erasable Probe Read-Only Memory) and the like. It is composed of a microcomputer equipped with a timer circuit and the like.

The control unit 10 causes the CPU to execute the control program stored in the non-volatile memory, so that the first acquisition unit 11, the determination unit 12, the second acquisition unit 13, the third acquisition unit 14, the generation unit 15, and the execution unit It functions as 16 and the adjusting unit 17. Details of each of these parts 11 to 17 will be described later.

The interface unit 5 is composed of a communication interface circuit for the environmental test device 1 to communicate with an external device via a network (not shown). Under the control of the control unit 10, the interface unit 5 transmits the information input from the control unit 10 to the external device via the network. Further, each time the interface unit 5 receives the information transmitted by the external device via the network, the interface unit 5 outputs the received information to the control unit 10.

The display unit 6 is composed of, for example, a liquid crystal display, and under the control of the control unit 10, displays various information such as an operation screen and a message of the environmental test apparatus 1.

The operation unit 7 is composed of, for example, a touch panel device provided on a display surface of various information included in the display unit 6. When the soft keys in the various screens displayed on the display surface are operated, the operation unit 7 receives the input of the soft keys and the instructions associated with the operations. Further, the operation unit 7 is not limited to the touch panel device, and may be configured to include a keyboard for inputting various information, a mouse for operating soft keys in various screens, and the like.

The storage unit 8 is composed of a storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and stores various information under the control of the control unit 10. Further, the storage unit 8 stores in advance an image showing an operation screen displayed on the display unit 6, various information used for control by the control unit 10, and the like.

The environment regulator 2 is composed of an air conditioner equipped with a refrigerator, a humidifier, and the like, a fog generator, a light irradiation device, a snowfall device, a rainfall device, a blower, and the like. The environment regulator 2 adjusts the internal environment of the test tank 100 in which the sample is housed under the control of the control unit 10 using predetermined parameters.

The environment adjuster 2 sets the internal environment of the test tank 100 to, for example, a high temperature and high humidity, constant temperature and constant humidity and low temperature and low humidity environment, an environment in which fog is generated, an environment in which light is irradiated, and rain or snow. Adjust to one or more environments (hereinafter referred to as on-site environment) where the sample is expected to be actually exposed, such as an environment where the sample is exposed and an environment where sand and dust are scattered. The parameters used by the environmental regulator 2 to adjust the internal environment of the test tank 100 to the above-exemplified field environment include air temperature, humidity and atmospheric pressure, fog density, light illuminance, and rain inside the test tank 100. And the density of snow, as well as the density of sand and dust.

In addition, for example, using a camera that captures images such as a sensing camera or a security camera mounted on a vehicle as a sample, rain or snow in the air such as an environment where it is raining or snowing or where sand or dust is scattered. In an environment where foreign matter such as sand and dust is present, a test may be performed as to whether or not an object to be photographed (for example, a doll) can be recognized from an image taken by the sample. In this case, it is preferable that the environment adjuster 2 adjusts the environment inside the test tank 100 to an environment in which foreign matter is present in the air, where the sample is expected to be actually exposed.

However, in the test, the content (camera image) of the image taken by the sample is confirmed. This image shows features of the appearance of foreign matter present in the air, such as rain, snow, sand and dust, but does not show other features such as material or weight. Therefore, when reproducing the environment in which foreign matter exists in the air inside the test tank 100, it is necessary to faithfully reproduce the characteristics related to the appearance of the foreign matter existing in the air, but other than the appearance. There is no need to faithfully reproduce the characteristics of.

Therefore, the environment regulator 2 imitates the internal environment of the test tank 100 with respect to the appearance characteristics of the foreign matter (first foreign matter) existing in the air, and is a pseudo foreign matter (first foreign matter) such as a piece of paper (paper wipe). (Ii) It may be adjusted to the environment in which foreign matter exists. Specifically, the blower or the like that scatters the pseudo foreign matter may be used as the environment regulator 2. In order to adjust the internal environment of the test tank 100 to the environment in which the pseudo foreign matter is present, the parameters used by the environment adjuster 2 include the pseudo foreign matter existing inside the test tank 100. The density of foreign matter may be included.

The environment sensor 3 detects at least a part of the parameters used for adjusting the internal environment of the test tank 100. In the present embodiment, the environment sensor 3 is composed of a known temperature sensor, humidity sensor, and barometric pressure sensor, and is used for adjusting the internal environment of the test tank 100. The temperature, humidity, and barometric pressure of the air inside the test tank 100. It is assumed that the three parameters of are detected. However, the purpose is not to limit the environment sensor 3 to the configuration.

The camera 4 is composed of a sensing camera or the like capable of capturing still images and moving images, captures still images or moving images inside the test tank 100, and outputs the captured still images or moving images to the control unit 10.

For example, as shown in FIG. 2, the camera 4 is installed in the upper corner inside the test tank 100, and a still image or a moving image (hereinafter, a third image) of a sample plate SB attached to the inside of the test tank 100 is taken. ) Is output to the control unit 10. The sample plate SB is a plate painted in a predetermined color such as black, and is supported by a support member attached to the inner wall of the test tank 100. The camera 4 may take a picture of the inner wall of the test tank 100 painted in the same color as the sample plate SB without providing the sample plate SB.

(Test preparation work flow)
The preparatory work to be performed before starting the test in the environmental test apparatus 1 will be described below. FIG. 3 is a diagram showing an example of preparatory work to be performed before starting the test in the environmental test apparatus 1. FIG. 4 is a flowchart showing an example of preparatory work to be performed before starting the test in the environmental test apparatus 1.

As shown in FIG. 3A, the operator performing the test preparation work goes to the field environment where the sample is expected to be actually exposed and has the same color as the sample plate SB (FIG. 2). A sample plate SBa is installed, a camera 91 is installed so as to photograph the sample plate SBa, and an environment sensor 92 is attached near the camera 91. The vicinity of the camera 91 indicates a range in which the distance to the camera 91 is equal to or less than a predetermined distance.

The camera 91 is composed of a sensing camera or the like capable of capturing still images and moving images, captures still images or moving images in a predetermined shooting range, and outputs the captured still images or moving images to the information processing device 93.

The environment sensor 92 detects shooting information representing at least a part of the environment when a still image or a moving image is shot by the camera 91, and outputs the detected shooting information to the information processing device 93. In the present embodiment, the environment sensor 92 is composed of a known temperature sensor, humidity sensor, atmospheric pressure sensor, and illuminance sensor, and captures information on the air temperature, humidity, and atmospheric pressure and illuminance of light when the first image is taken. It shall be detected as. However, the shooting information is not limited to these.

The information processing device 93 is composed of a notebook computer, a tablet terminal, a smartphone, or the like connected to the camera 91 and the environment sensor 92. The information processing device 93 displays the operation screens of the camera 91 and the environment sensor 92 on a display unit (not shown), processes the output values of the camera 91 and the environment sensor 92, and the like.

When the operator finishes the installation of the sample plate SBa, the camera 91, and the environment sensor 92, as shown in FIG. 4, the operator uses the operation screen of the camera 91 displayed on the information processing device 93 to attach the sample plate to the camera 91. A still image or moving image in a predetermined range including SBa is taken, and the taken still image or moving image is output to the information processing apparatus 93 (S11).

Further, the operator causes the environment sensor 92 to detect the shooting information by using the operation screen of the environment sensor 92 displayed on the information processing device 93, and outputs the detected shooting information to the information processing device 93 (S12). ).

The information processing device 93 performs a known image extraction process on the still image or moving image input to the control unit 10 in S11, so that the still image or moving image representing the sample plate SBa can be obtained from the still image or moving image ( Hereinafter, the first image) is extracted (S13).

The information processing apparatus 93 executes a known image analysis process on the first image extracted in S13 to show a color spectrum (hereinafter, first) showing the distribution of colors contained in the first image extracted in S13. Color spectrum) is generated (S14). As shown in FIGS. 3 (b) and 3 (c), the first color spectrum is a wavelength of the color of each pixel included in the first image and a pixel representing the color of the wavelength included in the first image. It is the information associated with the number.

When the first image extracted in S13 is a moving image, the information processing device 93 generates a color spectrum showing the distribution of colors included in the image at a predetermined time point in the moving image as the first color spectrum. At a predetermined time point, the operator sets and operates the operation screen of the information processing apparatus 93. For example, when the site environment represented by the first image is an environment in which fog is generated, the operator sets and operates the time point where the fog density is highest as the predetermined one time point, and the field environment represented by the first image. When is an environment in which light is irradiated, the time point at which the illuminance of the light is highest is set as the predetermined one time point. However, the predetermined one time point is not limited to this, and may be set to a time point when a predetermined time has elapsed from the start time point of the moving image.

Alternatively, when the first image extracted in S13 is a moving image, the information processing device 93 includes the image at each time point in the moving image at each time when a predetermined time elapses from the start time of the moving image constituting the first image. A color spectrum showing the distribution of the colors may be generated, and the color spectrum in which the color distribution is most prominent among the generated color spectrums may be generated as the first color spectrum. The color spectrum in which the color distribution is most prominent is, for example, the number of peaks of the color distribution included in the color spectrum (eg, M1 and M2 in (c) of FIG. 3) having the largest number of pixels. The color spectrum including the peak of the color distribution having the largest number (eg G1) (eg M1 in (c) of FIG. 3) is shown.

FIG. 5 is a diagram showing an example of the field environment table T1. Next, as shown in FIG. 5, the information processing apparatus 93 has an environment ID for identifying the site environment (example: fog 1) and shooting information detected in S12 (example: temperature: T11, humidity: H11). , Atmospheric pressure: P11, Illumination: L11), image data representing the first image extracted in S13, and color spectrum data representing the first color spectrum generated in S14 are stored in the field environment table T1 in association with each other. (S15). This completes the test preparation work in one field environment.

The field environment table T1 is composed of a storage area of a storage device included in the information processing device 93. Further, the field environment table T1 having the same structure as the field environment table T1 is composed of the storage area of the storage unit 8 included in the environment test device 1.

The worker performs the preparatory work shown in S11 to S15 in each of the one or more field environments. Then, the worker stores all the contents stored in the field environment table T1 (FIG. 5) of the information processing device 93 used for the preparatory work in the field environment table T1 provided in the environment test device 1. This completes the test preparation work.

(Test flow)
Next, the operation of the sample test in the environmental test apparatus 1 will be described. In the description, details of the first acquisition unit 11, the determination unit 12, the second acquisition unit 13, the third acquisition unit 14, the generation unit 15, the execution unit 16, and the adjustment unit 17 (FIG. 1) will be described. .. 6 and 7 are flowcharts showing an example of the operation of the sample test in the environmental test apparatus 1.

As shown in FIG. 6, it is assumed that the test execution instruction input by the tester (user) using the operation unit 7 is a manual adjustment test execution instruction (S21; NO). In the manual adjustment test, as in the conventional test, the parameters set by the tester using the operation unit 7 are used so that the internal environment of the test tank 100 (FIG. 2) becomes the environment represented by the parameters. This is an adjusted test. In this case, the execution unit 16 executes the manual adjustment test (S27).

On the other hand, it is assumed that the test execution instruction input by the tester using the operation unit 7 is the execution instruction of the automatic adjustment test (S21; YES). The automatic adjustment test is a test in which the tester selects a field environment from one or more predetermined field environments using the operation unit 7 without having the tester set parameters representing the selected field environment. This is a test automatically reproduced inside the tank 100 (FIG. 2). In this case, the determination unit 12 refers to the site environment table T1 (FIG. 5) configured by the storage area of the storage unit 8, and selects from one or more first images stored in the site environment table T1. , The display unit 6 displays an operation screen (hereinafter referred to as a second image selection screen) for selecting a second image representing the site environment to be reproduced inside the test tank 100 (FIG. 2) (S22).

Specifically, on the second image selection screen, a list box or the like for allowing the tester to select one environment ID from one or more environment IDs stored in the field environment table T1 (FIG. 5) is displayed. Screen parts are included. It is assumed that the tester operates the screen component and selects one environment ID from the one or more environment IDs. In this case, the selected environment ID is input to the control unit 10 as an instruction to select the first image represented by the image data associated with the environment ID as the second image.

It is assumed that the environment ID selected by the tester on the second image selection screen is input to the control unit 10 as an instruction to select the first image represented by the image data associated with the environment ID as the second image. .. In this case, the determination unit 12 determines the first image represented by the image data associated with the input environment ID as the second image in the field environment table T1 (S23).

Further, the third acquisition unit 14 (FIG. 1) has photographed information (example: temperature: T11,) associated with the input environment ID (example: fog 1) in the site environment table T1 (FIG. 5). Humidity: H11, atmospheric pressure: P11, illuminance: L11) are acquired as environmental information representing at least a part of the environment when the second image determined in S23 is taken (S24).

Then, the adjusting unit 17 controls the environment regulator 2 (FIG. 1) to adjust the internal environment of the test tank 100 (FIG. 2) so as to be the environment represented by the environment information acquired in S24 (FIG. 1). S25).

Specifically, in S25, the adjusting unit 17 has environmental information acquired in S24 among the parameters controlling the environmental regulator 2 (example: temperature: T11, humidity: H11, atmospheric pressure: P11, illuminance: L11). The value of each parameter (example: temperature, humidity, atmospheric pressure, illuminance) corresponding to is set to the value of each parameter (example: T11, H11, P11, L11) indicated by the environmental information.

As a result, the environment regulator 2 adjusts the internal environment of the test tank 100 (FIG. 2) to the environment indicated by the set parameter. For example, in the air conditioner constituting the environment regulator 2, the air temperature, humidity, and atmospheric pressure inside the test tank 100 (FIG. 2) are the values of the air temperature, humidity, and atmospheric pressure parameters set in S25 (eg, The air temperature, humidity and atmospheric pressure inside the test tank 100 (FIG. 2) are adjusted so as to be T11, H11, P11). Further, in the light irradiation device constituting the environment adjuster 2, the illuminance of the light inside the test tank 100 (FIG. 2) becomes the value of the parameter value of the illuminance of the light set in S25 (example: L11). , Adjust the illuminance of the light inside the test tank 100 (FIG. 2).

After S25, the execution unit 16 starts an automatic adjustment test (S26). When the automatic adjustment test is started, the execution unit 16 periodically measures the state of the sample such as the surface temperature of the sample by a sensor (not shown) attached to the sample until the end instruction of the test is input. , The measurement result is stored in the storage unit 8. Alternatively, when the automatic adjustment test is started, the execution unit 16 supplies power to the sample by a power supply circuit (not shown) until an instruction to end the test is input, and controls a measuring device (not shown) to control the sample. Is input with a predetermined electric signal, and the electric signal output from the sample is measured.

The test end instruction is input by the examiner using the operation unit 7 at an arbitrary timing during the execution of the automatic adjustment test. However, the present invention is not limited to this, and an instruction to end the automatic adjustment test may be input after a predetermined time has elapsed from the start of the automatic adjustment test. The predetermined time may be set by the tester using the operation unit 7.

When the automatic adjustment test is started, as shown in FIG. 7, the second acquisition unit 13 acquires the first color spectrum showing the color distribution included in the second image determined in S23 (FIG. 6). (S31). Specifically, in S31, the second acquisition unit 13 has the color associated with the environment ID used when determining the second image in S23 (FIG. 6) in the field environment table T1 (FIG. 5). Acquires the first color spectrum represented by the spectrum data.

Next, the generation unit 15 causes the camera 4 to take a picture of the sample plate SB (S32). As a result, the camera 4 outputs the third image of the sample plate SB to the control unit 10. Then, the generation unit 15 determines the distribution of colors included in the third image captured in S32 in the same manner as when generating the first color spectrum from the first image in S14 (FIG. 4) of the preparatory work. The second color spectrum shown is generated (S33).

Then, the adjusting unit 17 determines whether or not the second color spectrum generated in S33 matches the first color spectrum acquired in S31 (S34).

Specifically, in S34, the adjusting unit 17 performs a known histogram matching process to calculate the degree of agreement between the second color spectrum generated in S33 and the first color spectrum acquired in S31. Then, when the calculated degree of coincidence is equal to or greater than a predetermined threshold value, the adjusting unit 17 determines that the second color spectrum matches the first color spectrum (S34; YES). On the other hand, when the calculated degree of matching is less than the threshold value, the adjusting unit 17 determines that the second color spectrum does not match the first color spectrum (S34; NO).

When the adjusting unit 17 determines that the second color spectrum generated in S33 does not match the first color spectrum acquired in S31 (S34; NO), the internal environment of the test tank 100 (FIG. 2) is determined. Quantitative adjustment (S35). Specifically, in S35, the adjusting unit 17 reproduces inside the test tank 100 (FIG. 2) represented by the second image determined in S23 among one or more parameters used by the environment regulator 2 for control. Adjust the parameters required to adjust the site environment of the target by a predetermined amount.

For example, it is assumed that the target site environment to be reproduced inside the test tank 100 (FIG. 2) represented by the second image determined in S23 is an environment in which fog is generated. In this case, in S35, the adjusting unit 17 adjusts a predetermined amount of a parameter indicating the fog density used for control by the fog generator constituting the environment regulator 2, which is necessary for adjusting the environment in which fog is generated. To do.

In S35, the adjusting unit 17 may further adjust parameters such as humidity used for control by the air conditioner constituting the environment regulator 2 in addition to the fog density, for example. Alternatively, the adjusting unit 17 may adjust only parameters such as humidity used for control by the air conditioner constituting the environment regulator 2 in S35 without adjusting the fog density, for example.

Further, for example, it is assumed that the site environment of the target to be reproduced inside the test tank 100 (FIG. 2) represented by the second image determined in S23 is an environment irradiated with light. In this case, the adjusting unit 17 adjusts a predetermined amount of a parameter indicating the illuminance of the light used for control by the light irradiating device constituting the environment adjusting device 2 necessary for adjusting the environment in which the light is irradiated in S35. To do.

Also in this case, the adjusting unit 17 further adjusts not only the illuminance of light but also the parameters used for control by a device different from the light irradiating device constituting the environment regulator 2 in S35. May be good. Alternatively, the adjusting unit 17 may adjust only the parameters used for control by the different devices in S35 by a predetermined amount without adjusting the illuminance of light, for example.

Then, when the test end instruction is not input to the control unit 10 (S36; NO), the processes after S32 are repeated. When the test end instruction is input to the control unit 10 (S36; YES), the execution unit 16 ends the automatic adjustment test.

On the other hand, it is assumed that the adjusting unit 17 determines that the second color spectrum generated in S33 and the first color spectrum acquired in S31 match (S34; YES). In this case, when the test end instruction is not input to the control unit 10 (S36; NO), the processes after S32 are repeated, and when the test end instruction is input to the control unit 10 (S36; YES). , The execution unit 16 ends the automatic adjustment test.

According to the configuration of the above embodiment, when the execution instruction of the automatic adjustment test is input, the second color spectrum without measuring the parameters necessary for adjusting the internal environment of the test tank 100 (FIG. 2). The internal environment of the test tank 100 represented by the above can be matched with the field environment of the object to be reproduced inside the test tank 100 (FIG. 2) represented by the first color spectrum. As a result, an environment that requires adjustment of parameters that are difficult to measure by the environment sensor 3 can be reproduced inside the test tank 100.

Further, according to the configuration of the above embodiment, the background color of the first image determined as the second image is the same color as the sample plate SBa ((a) in FIG. 3), and the background color of the third image is , The same color as the sample plate SB (FIG. 2). That is, the background color of the first image and the background color of the third image match. Therefore, when adjusting the internal environment of the test tank 100 so that the second color spectrum matches the first color spectrum, the time required for the adjustment for matching the distribution of the background colors can be shortened. As a result, the site environment can be reproduced more quickly inside the test tank 100.

Further, according to the configuration of the above embodiment, the internal environment of the test tank 100 corresponds to the second image determined from the first image represented by one or more image data stored in advance in the storage unit 8. After adjusting to the environment represented by the attached shooting information, it is adjusted to the site environment represented by the second image. As a result, the test tank 100 is better than the case where the internal environment of the test tank 100 is not adjusted before adjusting the internal environment of the test tank 100 so that the second color spectrum matches the first color spectrum. The site environment represented by the second image can be reproduced more quickly inside the image.

Therefore, it is the same as one or more shooting information that is the same as one or more shooting information stored in advance in the storage unit 8 and one or more first images represented by one or more image data that is stored in advance in the storage unit 8. By repeatedly using one or more first images, the same field environment can be quickly and repeatedly reproduced inside the test tank 100.

(Modified Embodiment)
It should be noted that the above embodiment is merely an example of the embodiment according to the present invention, and does not mean that the present invention is limited to the above embodiment. For example, it may be a modified embodiment shown below.

(1) The camera 4 may be configured by a sensing camera or the like capable of capturing only a still image. Similarly, the camera 91 may be configured by a sensing camera or the like capable of capturing only a still image.

(2) It is assumed that the automatic adjustment test is executed in the environmental test apparatus 1 when the worker is going to one site environment. In this case, instead of S15 (FIG. 5), the information processing apparatus 93 extracts the environment ID for identifying the site environment, the shooting information detected in S12 (FIG. 5), and S13 (FIG. 5). The site environment information in which the image data representing the first image and the color spectrum data representing the first color spectrum generated in S14 (FIG. 5) are associated with each other may be transmitted to the environment test apparatus 1.

On the other hand, in the environmental test apparatus 1, when the tester inputs an execution instruction of the automatic adjustment test using the operation unit 7 (S21; YES), the determination unit 12 replaces S22 to S24 (FIG. 6). The first image represented by the image data included in the site environment information received by the interface unit 5 may be determined as the second image. Then, the third acquisition unit 14 (FIG. 1) may acquire the shooting information included in the received site environment information as the environment information.

As a result, the test tank 100 (existing in the environmental test apparatus 1) includes the on-site environment to which the worker is sent without storing the on-site environment information in the on-site environment table T1 provided in the information processing apparatus 93 and the environmental test apparatus 1. It may be reproduced quickly inside FIG. 2).

(3) S12 (FIG. 4) may be omitted, and in S15 (FIG. 4), the shooting information may not be stored in the field environment table T1 (FIG. 5). In line with this, S24 and S25 (FIG. 6) may be omitted.

(4) In S11 (FIG. 4), the operator may have the camera 91 capture a still image or a moving image in a predetermined range that does not include the sample plate SBa. Then, S13 (FIG. 4) is omitted, and in S14 (FIG. 4), the information processing apparatus 93 uses the color spectrum included in the still image or moving image (first image) captured in S11 as the first color spectrum. It may be generated.

Similarly, in S32 (FIG. 7), the generation unit 15 causes the camera 4 to photograph an area other than the sample plate SB, and in S33 (FIG. 7), the still image or moving image in which the other area is photographed. The color spectrum included in (third image) may be generated as the second color spectrum.

1 Environmental test equipment 2 Environmental regulator 4 Camera 8 Storage unit (first database, second database)
11 1st acquisition unit 12 Decision unit 13 2nd acquisition unit 14 3rd acquisition unit 15 Generation unit 17 Adjustment unit 100 Test tank Sample plate of the same color as the SB sample plate SBa sample plate

Claims (10)

A test tank that houses the sample and
A camera that photographs the inside of the test tank and
An environment regulator that adjusts the internal environment of the test tank,
A generator that generates a color spectrum showing the distribution of colors contained in the image captured by the camera, and a generator.
An adjusting unit that causes the environment adjuster to adjust the internal environment of the test tank so that the color spectrum matches the color spectrum of an image taken in one or more field environments.
Environmental test equipment equipped with. The images taken in one or more of the field environments are images taken against the background of the sample plate.
The test tank includes a sample plate having the same color as the sample plate.
The image taken by the camera is an image taken against a background of a sample board having the same color as the sample board.
The environmental test apparatus according to claim 1. The adjusting part
Obtain environmental information that represents at least a part of the environment when the image of the site environment was taken.
By controlling the environment regulator, the environment inside the test tank is adjusted to the environment represented by the environment information.
The environmental test apparatus according to claim 1 or 2. The adjusting unit is an image taken in one or more field environments or a color spectrum of the image taken from the first database in which the color spectrum of the image is stored in advance. To get,
The environmental test apparatus according to any one of claims 1 to 3. The adjusting part
An image taken in one or more field environments or a color spectrum of the image, and shooting information representing at least a part of the environment when each of the images taken in the one or more field environments was taken. Acquires an image taken in one or more of the field environments or the color spectrum of the image from the second database stored in association with each other in advance.
In the second database, the acquired image taken in the one or more field environments or the shooting information associated with the color spectrum of the image is acquired as the environment information.
The environmental test apparatus according to claim 3. The above-mentioned one or more field environments include an environment in which fog is generated.
The environmental test apparatus according to any one of claims 1 to 5. The one or more field environments include an environment irradiated with light.
The environmental test apparatus according to any one of claims 1 to 6. The above-mentioned one or more field environments include an environment in which the first foreign substance is present in the air.
The environment adjuster adjusts the internal environment of the test tank to an environment in which a second foreign substance that mimics the appearance characteristics of the first foreign substance is present.
The environmental test apparatus according to any one of claims 1 to 7. Images taken in one or more of the field environments include moving images.
When the image taken in the one or more field environments is a moving image, the adjusting unit obtains a color spectrum showing the color distribution included in the image at a predetermined time point in the moving image in the one or more field environments. Acquire as the color spectrum of the captured image,
The environmental test apparatus according to any one of claims 1 to 8. An environmental test method in an environmental test apparatus including a test tank in which a sample is housed, a camera for photographing the inside of the test tank, and an environmental adjuster for adjusting the internal environment of the test tank.
A color spectrum showing the distribution of colors contained in the image captured by the camera is generated.
The environment adjuster is made to adjust the internal environment of the test tank so that the color spectrum matches the color spectrum of the image taken in one or more field environments.
Environmental test method.

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