Covering equipment and method for acquiring data for composition analysis

Abstract

To allow an easy acquisition of data suitable for analyzing composition information of wastes.SOLUTION: The present invention relates to a cover lid facility 2 used to measure a waste P as a target of composition target; a cover lid part 10 covering the waste P; and an illumination tool 20 and a measurement unit 30 provided in the cover lid part 10. The cover lid part 10 can block natural light from the outside. The measurement unit 30 acquires data used for the composition analysis by conducting a measurement using light that the illumination too 20 applies on the waste P.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cover installation and a method for acquiring data for composition analysis. [Background technology]

[0002] In the event of a large-scale disaster (earthquake, tsunami, etc.), a large amount of waste is generated in the affected area. This waste is a mixture of various types of materials, such as combustible and non-combustible materials, and is also called a "mixture." This waste is first accumulated in a storage area called a primary temporary storage site (usually outdoors), and then transported to a secondary temporary storage site, which is a temporary processing facility where the waste is crushed, sorted, incinerated, etc. After processing in the secondary temporary storage site, the sorted items are transported to existing incineration facilities or final disposal sites for final disposal. Here, information on the composition of the waste accumulated in the temporary storage site (e.g., it contains a lot of wood, or a lot of pottery fragments) is needed as basic information for planning the temporary processing facility and the transportation plan of the sorted items. In past disaster waste treatment operations, in order to obtain such composition information, humans would simply look at photographs of waste and distinguish them, or humans would directly sort waste stored in temporary storage sites and measure the composition. However, these conventional methods had problems such as large estimation errors, low accuracy due to a small measurement frequency (samples), and time required for measurement. In relation to this, a technology has been proposed to identify objects based on the spectral features shown in hyperspectral images (see, for example, Non-Patent Document 1). By applying this technology, it is possible to obtain composition information from hyperspectral images of waste. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] Zhao Wenhui and two others, "A study on the detection of industrial waste dumping sites by remote sensing," Proceedings of the 2006 Tohoku Branch Joint Conference of Electrical Engineering Institutes of Japan, Institute of Electrical Engineers of Japan, et al., 2006, p.176 Summary of the Invention [Problem to be solved by the invention]

[0004] When analyzing waste composition using images taken by a hyperspectral camera, it is necessary to take the images under certain conditions, such as keeping the amount of light on the waste surface constant. For example, the analysis results are affected by differences in weather (sunny, cloudy, etc.), time of day (morning / evening, noon, etc.), and the surrounding environment of the shooting location. For this reason, it has been difficult to analyze the waste composition from hyperspectral images taken of waste stored in outdoor temporary storage areas. Furthermore, it is not efficient to take images by transporting the waste indoors or by strictly defining shooting conditions, as this is a lot of work. It should be noted that the above problem can occur not only with hyperspectral camera images but also with data acquired by other optical measuring instruments such as near-infrared cameras. From this perspective, the present invention provides a covering device and a method for acquiring data for composition analysis that can easily acquire data suitable for analyzing composition information of waste. [Means for solving the problem]

[0005] Books The covering equipment according to the invention comprises: set This is a covering device used to measure the waste that is the subject of composition analysis. The waste is loaded onto the platform of a transport vehicle. Suspended by a lifting means Cover The vehicle includes a lid, and a lighting device and a measuring device provided inside the lid. The lid has a ceiling disposed above the loading platform, and a light shielding curtain hung down from an edge of the ceiling. The size of the cover portion is such that it can cover the entire cargo bed except for the driver's seat area or a part of the cargo bed. The measuring instrument performs measurements using the light irradiated by the illuminator onto the waste material to obtain data to be used in the composition analysis. In addition, the covering equipment according to the present invention includes: setThis is a covering device used to measure the waste that is the subject of composition analysis. The waste is placed on the ground. This cover system is Standing position of The waste disposal system includes a cover portion, and an illumination device and a measuring device provided inside the cover portion. The cover portion has a ceiling portion and a light shielding curtain that is hung down from an edge of the ceiling portion. The measuring device performs measurements using light emitted by the illumination device to illuminate the waste, and obtains data to be used in the composition analysis. In the covering equipment according to the present invention, the covering part can eliminate the influence of natural light (mainly sunlight) from the outside. In addition, by using the light irradiated by the illuminator, the amount of light on the waste surface can be kept constant, making it possible to always measure under the same conditions. Therefore, data (e.g., hyperspectral images) used for composition analysis can be easily obtained without restrictions such as weather, time, and location.

[0006] The measuring instrument is preferably a hyperspectral camera that captures images by dispersing light in a predetermined band, and the illuminator is preferably one that irradiates light containing wavelength components in the near-infrared region or mid-infrared region. In this way, useful data (wavelength information) that is more suitable for composition analysis can be obtained. The data is in the form of images. In other words, data taken with a hyperspectral camera in the near-infrared or mid-infrared region is more likely to reveal material characteristics than data taken with a hyperspectral camera in the visible light region, which is affected by color. Therefore, by using the latter data to perform composition analysis, more accurate analysis results can be obtained. The inventors of the present invention have verified through research that the first derivative of wavelength information more clearly expresses the characteristics of the material than the wavelength information itself when waste is photographed with a hyperspectral camera. Therefore, by performing composition analysis using information obtained by first derivative of wavelength information when light in the near-infrared or mid-infrared region is photographed with a hyperspectral camera, it is possible to obtain more accurate analysis results.

[0007] The method for obtaining data for composition analysis according to the present invention is a method for obtaining data for composition analysis, which measures waste to be subjected to composition analysis and obtains data to be used in the composition analysis. This method of obtaining data for composition analysis includes a first step of covering a portion of a mass of waste placed on the ground with the above-mentioned covering equipment, and a second step of obtaining data to be used in the composition analysis using the measuring instrument while the covering equipment is in place. The covering equipment The first step and the second step are repeated at different locations to obtain data on the waste materials. In the compositional analysis data acquisition method according to the present invention, since there are no restrictions on the acquisition of data used in compositional analysis (such as restrictions on weather, time, location, etc.), the measurement frequency (samples) can be easily increased, and therefore highly accurate analysis results can be obtained. Effect of the Invention

[0008] According to the present invention, data suitable for analyzing composition information of waste can be easily obtained. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic diagram of a composition analysis system using a covering equipment according to an embodiment of the present invention, in which a part of the covering equipment is cut away to show the inside. [Diagram 2] FIG. 2 is a schematic cross-sectional view of a first type of covering equipment. [Diagram 3] FIG. 11 is a schematic cross-sectional view of a second type of covering equipment. [Figure 4] FIG. 11 is a schematic cross-sectional view of a third type of covering equipment. [Figure 5A] These are examples of wavelength information obtained when wood chips, plywood, and laminated veneer lumber are photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. [Figure 5B] This is an example of wavelength information when a concrete block is photographed with a hyperspectral camera compatible with the near- and mid-infrared regions. [Figure 5C]This is an example of wavelength information obtained when photographing a cloth glove using a hyperspectral camera compatible with the near- and mid-infrared regions. [Figure 6A] This is the first derivative of wavelength information (see Figure 5A) obtained when wood chips, plywood, and laminated veneer lumber were photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. [Figure 6B] This is the first derivative of the wavelength information (see Figure 5B) obtained when a concrete block was photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. [Figure 6C] This is the first derivative of the wavelength information (see Figure 5C) obtained when a cloth glove was photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiment of the present invention will be described in detail with reference to the drawings. Each drawing is merely a schematic illustration to allow a sufficient understanding of the present invention. Therefore, the present invention is not limited to the illustrated examples. In each drawing, common or similar components are denoted by the same reference numerals, and duplicated explanations thereof will be omitted.

[0011] <Composition analysis system using the covering equipment according to the embodiment> With reference to Fig. 1, a composition analysis system 1 for waste P using a covering equipment 2 according to an embodiment will be described. Fig. 1 is a schematic configuration diagram of the composition analysis system 1. The composition analysis system 1 is a system for analyzing the composition of waste P. The waste P is in a state where materials with various properties, such as combustible materials and non-combustible materials, are mixed together. The composition analysis system 1 includes the covering equipment 2 and a control device 3. The covering equipment 2 is equipment used for measuring the composition of the waste P. The covering equipment 2 includes a covering part 10 that covers the waste P, and an illumination device 20 and a measurement device 30 provided inside the covering part 10. The illumination device 20 and the measurement device 30 may be configured as a single device. The covering equipment 2 is intended for outdoor use, but can also be used indoors.

[0012] The cover 10 has a structure capable of blocking natural light from the outside (it may pass light that does not affect the measurement). The size of the cover 10 is such that the waste P to be measured can be stored inside. When it is assumed that the loading platform of a transport vehicle that loads and transports the waste P is to be measured, the size of the cover 10 may be, for example, a size that covers the entire vehicle, the entire loading platform, or a part of the loading platform. When it is assumed that the waste P stored in a temporary storage facility is to be measured, the size of the cover 10 may be, for example, a size that covers a part of the entire vehicle. The shape of the cover 10 and the material of the member constituting the cover 10 are not particularly limited. The cover 10 is, for example, a dome shape or a box shape like an upside-down measuring bowl, tub, or bowl. The material of the cover 10 is, for example, concrete, metal, wood, paper, cloth, etc. In the case of a material that does not have a light-blocking property, it is preferable to perform a processing process (for example, a coating) to realize light blocking. If the covering equipment 2 is too large or heavy to be carried by human power, it is preferable to use a lifting means 4 (e.g., a crane) to move the covering part 10 to the waste P. Also, if the covering equipment 2 is installed on the ground (i.e., if the covering equipment 2 is a facility), it is preferable to provide the covering part 10 with an entrance (not shown) for carrying in the waste P.

[0013] The illuminator 20 irradiates light (visible light, infrared light, etc.) containing wavelength components detectable by the measuring instrument 30. Specifically, the illuminator 20 may be an incandescent lamp or a halogen lamp that irradiates light containing wavelength components in the near-infrared region or mid-infrared region. The illuminator 20 is installed inside the cover 10 so as to appropriately illuminate the waste P. The number of illuminators 20 installed is one or more and is not particularly limited. In order to prevent the occurrence of shadows caused by the shape or overlap of the waste P, it is desirable to arrange multiple illuminators 20 so that light can be irradiated onto the waste P from different directions. The measuring instrument 30 obtains data to be used for composition analysis using the light irradiated by the illuminator 20. The measuring instrument 30 may be, for example, various sensors or cameras, but is preferably a hyperspectral camera that is compatible with the near-infrared region or the mid-infrared region. A hyperspectral camera is a camera that captures images by dividing (dispersing) light into a predetermined band. Therefore, an image captured by a hyperspectral camera (hyperspectral image) shows wavelength information specific to the subject being captured. The measuring instrument 30 may also be a combination of sensors or cameras that measure the near-infrared region and sensors or cameras that measure the mid-infrared region, or a multispectral camera, or other configurations consisting of optical equipment capable of measuring multiple bands. An auxiliary measuring instrument (for example, a measuring instrument that measures volume or weight, an RGB camera for visually checking the type of waste P, etc.) may be further provided.

[0014] The control device 3 transmits control information to the covering equipment 2 and controls the covering equipment 2. It also controls the covering equipment 2 to receive data acquired by the measuring instrument 30 (i.e., data used for composition analysis). The control device 3 is, for example, a PC (Personal Computer) and includes a storage unit and a control unit. The control device 3 has an analysis tool, and uses this analysis tool to analyze the data acquired by the measuring instrument 30 to determine the composition of the waste P. The control device 3 calculates the percentage of each of concrete, wood chips, metal, etc. contained in the waste P by analyzing image data, for example, with the analysis tool. Note that the data acquired by the measuring instrument 30 may be transferred to the control device 3 using a recording medium such as an HDD (Hard Disk Drive) or various memories. Also, the measuring instrument 30 may be operated by human operation, not by control of the control device 3.

[0015] Specific examples (first to third types) of the covering equipment 2 will be described with reference to Fig. 2 to Fig. 4. Fig. 2 is a schematic cross-sectional view of a first type of covering equipment 2A. Fig. 3 is a schematic cross-sectional view of a second type of covering equipment 2B. Fig. 4 is a schematic cross-sectional view of a third type of covering equipment 2C. The first to third types are variations of the covering equipment 2. The first and second types are assumed to be used in a situation where waste P loaded on the loading platform 5a of a transport vehicle 5 is measured. The third type is assumed to be used in a situation where waste P placed on the ground G is measured.

[0016] (Configuration of the first type of covering equipment 2A) The first type of covering equipment 2A shown in Fig. 2 includes a covering part 10A, an illuminator 20A, a composition measuring instrument 30A, a volume measuring instrument 40A, and a truck scale 50A. The illuminator 20A, the composition measuring instrument 30A, the volume measuring instrument 40A, and the truck scale 50A are provided inside the covering part 10A. The cover 10A has a ceiling 11A arranged above the transport vehicle 5 at the measurement position, and a side wall 12A erected on the ground G to cover the side of the transport vehicle 5. An entrance 13A and an exit 14A are provided on the side wall 12A, and a shutter or an openable gate 15A is provided at the entrance 13A and the exit 14A. The entrance 13A and the exit 14A may not be separately provided, but may be combined into one entrance and exit. A stand 16A is provided on the ceiling 11A (the stand 16A may be provided on the side wall 12A). The side wall 12A may be entirely or partially formed of a soft material such as cloth, vinyl, nylon, or polyester. Similarly, the ceiling 11A may be entirely or partially formed of a soft material. In that case, for example, a structure in which a film-like member (light-shielding curtain) is fixed to a framework may be used. The light-shielding curtain is provided, for example, hanging down from the edge of the ceiling 11A.

[0017] The illuminator 20A is fixed to the ceiling 11A, the side wall 12A, or the stand 16A. The illuminator 20A should be positioned so that the light is even. In other words, the illuminator 20A should be positioned so that the waste P loaded on the loading platform 5a is irradiated from various directions. The composition measuring instrument 30A acquires data used for composition analysis. The composition measuring instrument 30A is, for example, a hyperspectral camera compatible with the near-infrared region or the mid-infrared region. The composition measuring instrument 30A is fixed to the stand 16A. The volume measuring device 40A measures the volume of the loaded waste P. The volume measuring device 40A is, for example, a 3D laser scanner. The truck scale 50A is a large scale that measures the weight (including the load) of the transport vehicle 5. The truck scale 50A is installed at the measurement position of the composition measuring instrument 30A (on the ground G below the composition measuring instrument 30A and the volume measuring instrument 40A, and below the transport vehicle 5). The management room 6 may be installed inside the cover 10A. For example, a control device 3 (see FIG. 1) is installed in the management room 6, and controls the opening and closing of the shutter or openable gate 15A, the blinking of the illuminator 20A, the photographing by the composition measuring instrument 30A, the volume measurement by the volume measuring instrument 40A, and the weight measurement by the truck scale 50A. The management room 6 may be installed outside the cover 10A.

[0018] (Measurement method using the first type of covering equipment 2A) The transport vehicle 5 loaded with waste P enters the cover section 10A from the entrance 13A and stops at the measurement position. Next, the shutter or the openable gate 15A of the entrance 13A is closed, and the waste P on the loading platform 5a is photographed using a hyperspectral camera, which is a composition measuring instrument 30A. When photographing, the illuminator 20A is turned on to illuminate the waste P to be photographed. In addition, the volume measuring instrument 40A measures the volume of the waste P, and the truck scale 50A measures the weight of the transport vehicle 5 (including the waste P). The measured information is sent to the control device 3 (see FIG. 1). After the measurement is completed, the transport vehicle 5 exits the cover section 10A from the exit 14A. After that, a new transport vehicle 5 enters the cover section 10A from the entrance 13A and measures the waste P.

[0019] (Configuration of the second type of covering equipment 2B) The second type of covering equipment 2B shown in Fig. 3 includes a covering part 10B, an illuminator 20B, a composition measuring instrument 30B, and a volume measuring instrument 40B. The covering equipment 2B covers the waste P while suspended from the lifting means 4 (see Fig. 1) to block natural light and perform measurements using the composition measuring instrument 30B and the like. The illuminator 20B, the composition measuring instrument 30B, and the volume measuring instrument 40B are provided inside the covering part 10B. The illuminator 20B, the composition measuring instrument 30B, and the volume measuring instrument 40B are similar to the illuminator 20A, the composition measuring instrument 30A, and the volume measuring instrument 40A of the first type, and therefore a description thereof will be omitted. The cover 10B has a ceiling 11B disposed above the loading platform 5a and a light shielding curtain 12B hanging down from the edge of the ceiling 11B. The ceiling 11B is a plate-like or film-like member, and has, for example, a rectangular shape corresponding to the loading platform 5a. When the ceiling 11B is a film-like member, it may have a structure in which a film-like member is fixed to a framework. The light shielding curtain 12B is formed of a soft member such as cloth, vinyl, nylon, or polyester, and has an endless shape in which both ends of a wide, strip-like soft member are sewn together. A weight may be attached to the light shielding curtain 12B so that it does not flutter in the wind, etc. It is preferable that the light shielding curtain 12B does not have any cuts or gaps, but it may have cuts or gaps that allow natural light to pass through without affecting the measurement. A hanging tool 13B is provided on the upper surface of the ceiling 11B to connect to the lifting means 4 (see FIG. 1).

[0020] (Measurement method using the second type of covering equipment 2B) The lifting means 4 (see FIG. 1) is used to move the covering equipment 2B to the loading platform 5a, and the waste P on the loading platform 5a is covered with a light shielding curtain 12B to block natural light from outside. In this suspended state, the waste P on the loading platform 5a is photographed using a hyperspectral camera, which is a composition measuring instrument 30B. When photographing, the illuminator 20B is turned on to illuminate the waste P to be photographed. In addition, the volume of the waste P is measured by the volume measuring instrument 40B. The measured information is sent to the control device 3 (see FIG. 1). After the measurement is completed, the lifting means 4 (see FIG. 1) is used to detach the covering equipment 2B from the loading platform 5a, and it is then moved to the loading platform 5a of the transport vehicle 5 where the next measurement will be performed.

[0021] (Configuration of the third type of covering equipment 2C) The third type of covering equipment 2C shown in FIG. 4 includes a covering part 10C, an illuminator 20C, a composition measuring instrument 30C, and a volume measuring instrument 40C. The covering equipment 2C covers the waste P while suspended from the lifting means 4 (see FIG. 1) to block natural light, and performs measurements using the composition measuring instrument 30C and the like. In the case of a portable covering equipment 2C, measurements using the composition measuring instrument 30C and the like may be performed while the equipment is held by a person or while standing on its own using a self-supporting means (e.g., legs) not shown. The illuminator 20C, the composition measuring instrument 30C, and the volume measuring instrument 40C are provided inside the covering part 10C. The covering part 10C, the illuminator 20C, the composition measuring instrument 30C, and the volume measuring instrument 40C are the same as the covering part 10B, the illuminator 20B, the composition measuring instrument 30B, and the volume measuring instrument 40B of the second type. For example, the cover 10C has a ceiling 11C disposed above and a light shielding curtain 12C hanging down from the edge of the ceiling 11C. The ceiling 11C is a plate-like or film-like member and can be any shape, such as a rectangle or a circle. When the ceiling 11C is a film-like member, it may have a structure in which a film-like member is fixed to a framework. The light shielding curtain 12C is made of a soft member such as cloth, vinyl, nylon, or polyester, and is an endless shape in which both ends of a wide, strip-like soft member are sewn together.

[0022] (Measurement method using the third type of cover equipment 2C) The lifting means 4 (see FIG. 1) is used to move the covering equipment 2C to the waste group P1, or the covering equipment 2C is carried by a person in the case of a portable type, and a part of the waste P of the waste group P1 is covered with a light-shielding curtain 12C to block natural light from outside. In this suspended state, the waste P of the part covered with the light-shielding curtain 12C is photographed using a hyperspectral camera, which is a composition measuring instrument 30C. When photographing, the illuminator 20C is turned on to illuminate the waste P to be photographed. In addition, the volume of the waste P of the part covered with the light-shielding curtain 12C is measured by a volume measuring instrument 40C. The measured information is sent to the control device 3 (see FIG. 1). After the measurement is completed, the lifting means 4 (see FIG. 1) is used to move the covering equipment 2C to the location where the next measurement will be performed, and another part of the waste P of the waste group P1 is covered with the light-shielding curtain 12C to block natural light from outside and photograph it. By repeatedly performing the process of moving the covering equipment 2C and photographing it, data for analyzing the composition of the waste group P1 can be obtained.

[0023] As described above, in the covering equipment 2 according to the embodiment, it is possible to eliminate the influence of natural light (mainly sunlight) from the outside by using the covering unit 10. In addition, by using the light irradiated by the illuminator 20, it is possible to always perform measurements under the same conditions. Therefore, data (e.g., hyperspectral images) used for composition analysis can be easily obtained without restrictions such as weather, time, and location. Furthermore, by forming the light-shielding curtain 12B in the second type covering equipment 2B and the light-shielding curtain 12C in the third type covering equipment 2C from a flexible material, even if the waste P to be measured is part of a large waste mass P1 having unevenness, the flexible material deforms to conform to the unevenness (for example, the left side of the light-shielding curtain 12C in Figure 4), so that the influence of natural light from outside can be eliminated and the waste P can be measured under a stable light source. Furthermore, by taking images with a hyperspectral camera compatible with the near-infrared or mid-infrared region, useful data (wavelength information) that is more suitable for composition analysis can be obtained. In other words, data taken with a hyperspectral camera using light in the near-infrared or mid-infrared region is more likely to reveal characteristics of materials than data taken with a hyperspectral camera using light in the visible light region, which is affected by color. Therefore, by using the latter data to perform composition analysis, more accurate analysis results can be obtained. The data is an image (hyperspectral image) in which the wavelength information of the waste P at the position corresponding to each pixel is arranged in an array.

[0024] 5A and 5B, the results of a study on data captured by a hyperspectral camera in the near-infrared or mid-infrared region will be described. The graphs in the figures show the average reflection intensity over multiple captures. FIG. 5A shows examples of wavelength information obtained when wood chips, plywood, and laminated veneer lumber are photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. FIG. 5B shows an example of wavelength information obtained when a concrete block is photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. FIG. 5C shows an example of wavelength information obtained when a cloth glove is photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. 5A and 5B, the tendency of the reflection intensity of each object can be known from the wavelength information when photographed by a hyperspectral camera.

[0025] In addition, the inventor of the present invention verified through research that the first derivative of wavelength information more clearly shows the characteristics of the material than the wavelength information itself when waste is photographed with a hyperspectral camera. This will be explained with reference to Figures 6A and 6B. Note that the meaning of "average" in the graphs in the figures is the same as that explained in Figures 5A and 5B. Figure 6A shows the first derivative of wavelength information (see Figure 5A) obtained when wood chips, plywood, and laminated veneer lumber were photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. FIG. 6B shows the first derivative of the wavelength information (see FIG. 5B) obtained when a concrete block was photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. FIG. 6C shows the first derivative of the wavelength information (see FIG. 5C) obtained when a cloth glove was photographed using a hyperspectral camera compatible with the near- and mid-infrared regions. 6A and 6B, the characteristics of each article are clearer in the first derivative of the wavelength information than in the wavelength information shown in Fig. 5A and 5B. Therefore, by performing composition analysis using information obtained by first derivative of wavelength information obtained by capturing light in the near-infrared region or mid-infrared region with a hyperspectral camera, it is possible to obtain more accurate analysis results.

[0026] In addition, in the first type covering equipment 2A (see FIG. 2) and the second type covering equipment 2B (see FIG. 3), the waste P loaded on the loading platform 5a of the transport vehicle 5 was photographed. When the waste P is piled up, shadows are generated due to the height difference between adjacent items, which may affect the captured hyperspectral image. In other words, the hyperspectral image (wavelength information) measures the reflection intensity of each wavelength, but the light conditions in the shadowed area are significantly different from those in the area directly exposed to light from the light source (the incident light is blocked), and the intensity of each wavelength is different, resulting in a difference in reflection intensity. For this reason, it is desirable to make the surface of the waste P to be photographed as flat as possible (reducing the height difference between the items) so that shadows are less likely to be generated, but the waste P loaded on the loading platform 5a of the transport vehicle 5 often has a flat surface. That is, in order to prevent the waste P from falling off the loading platform 5a due to vibration or wind while traveling, the top surface of the waste P loaded on the transport vehicle 5 is generally flattened by tapping or stroking with the backhoe bucket. Even when the loading platform 5a is protected with a sheet, the surface is generally made flat in the same way, since it is easier to cover the loading platform 5a if the surface of the load is smooth. As a result, the influence of shadows can be eliminated and stable shooting can be performed. In the second type of covering equipment 2B (see FIG. 3) and the third type of covering equipment 2C (see FIG. 4), the covering parts 10B and 10C are suspended using a lifting means 4 (e.g., a crane). This makes it easy to move the equipment around and take pictures, allowing efficient data acquisition.

[0027] Although the embodiment of the present invention has been described above, the present invention is not limited to this, and can be practiced within the scope of the claims. In the second and third types, the cover parts 10B and 10C are suspended, but the cover parts 10B and 10C may be provided with legs so that they can stand on their own. Also, instead of providing the lifting means 4 to suspend the cover parts, a handle may be provided so that the workers can carry them. [Explanation of symbols]

[0028] 1. Composition Analysis System 2,2A,2B,2C Cover equipment 3. Control device 4 Lifting means 5. Transport vehicles 10,10A,10B,10C Cover part 11A Ceiling 12A side wall 11B,11C Ceiling section 12B,12C Blackout curtain 13B, 13C Lifting equipment 20,20A,20B,20C illuminator 30 Measuring Instruments 30A, 30B, 30C Composition Measuring Instrument 40A, 40B, 40C Volume measuring instrument 50A Truck Scale P Waste

Claims

1. A covering device used to measure waste that is the subject of composition analysis, comprising: The waste is loaded onto a bed of a transport vehicle, A cover part suspended from a lifting means; An illumination device and a measurement device provided inside the cover portion, The cover portion has a ceiling portion disposed above the loading platform and a light shielding curtain hung down from an edge of the ceiling portion, The size of the cover part is such that it can cover the entire loading platform or a part of the loading platform except for the driver's seat area, the measuring instrument performs a measurement using the light irradiated by the illuminator onto the waste material to obtain data to be used in the composition analysis; A covering equipment characterized by the above.

2. A covering device used to measure waste that is the subject of composition analysis, comprising: the waste is placed on the ground; A cover part in a self-supporting state; An illumination device and a measurement device provided inside the cover portion, The cover portion has a ceiling portion and a light shielding curtain hung down from an edge of the ceiling portion, the measuring instrument performs a measurement using the light irradiated by the illuminator onto the waste material to obtain data to be used in the composition analysis; A covering equipment characterized by the above.

3. The measuring instrument is a hyperspectral camera that captures light by dispersing it in a predetermined band, The illuminator irradiates light containing wavelength components in the near infrared region or the mid infrared region. The covering equipment according to claim 1 or 2.

4. A method for acquiring data for composition analysis, comprising the steps of: measuring waste to be subjected to composition analysis; and acquiring data to be used in the composition analysis, the method comprising the steps of: A first step of covering a part of a pile of waste placed on the ground with the covering equipment according to claim 2; A second step of acquiring data to be used in the composition analysis using the measuring instrument while the covering equipment is in place; The location of the covering equipment is changed and the first step and the second step are repeatedly performed to obtain data on the waste group. A method for acquiring data for composition analysis.

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