Material identification system for the object being measured

Abstract

The material determination system for an object to be measured according to the present invention includes an illumination device including a light-emitting unit that generates light toward the object to be measured, and a scanner including an NIR sensor, which is provided to determine the material of the object to be measured based on the light generated by the NIR sensor and the light-emitting unit, respectively, that passes through the object to be measured and is received, and pre-inputted information.

Description

Technical Field

[0001] The present invention relates to a material discrimination system for a measurement object, and more particularly, to a material discrimination system for a measurement object that generates light toward the measurement object below the measurement object, diffuses the generated light, and increases the amount of light received by a scanner.

Background Art

[0002] Typical plastics used as recycling agents include PET, PE, PP, ABS, PVC, etc.

[0003] In recent years, due to environmental problems, the importance of separating and collecting recycled products has been further increasing.

[0004] Therefore, in recent years, many plastic scanners that can be easily carried by users and used for discriminating plastic materials regardless of location and time have been developed.

[0005] Recently developed plastic scanners apply NIR (Near Infrared Ray) sensors.

[0006] Generally, an NIR sensor has a near infrared wavelength region of 750 nm to 2500 nm and particularly has a wavelength close to red visible light. Thus, it is widely used in various fields such as infrared cameras, infrared communication, household appliance remote controls, and biometric authentication (vein authentication).

[0007] A plastic scanner to which an NIR sensor is applied is a device that generates near infrared light toward a measurement object, receives the light reflected from the measurement object, and discriminates the material of the measurement object.

[0008] However, conventionally, when using a plastic scanner equipped with an NIR sensor to determine the material of a transparent object, the amount of light emitted from the plastic scanner that is received by the scanner after passing through the object and being reflected back is very small. When the amount of light received by the plastic scanner is small, the plastic material determination function of the plastic scanner does not work properly, making it difficult to accurately determine the material of the object being measured. [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] The object of the present invention is to provide a material determination system for an object to be measured that can generate light below the object to be measured and directed toward the object to be measured, and diffuse the generated light to increase the amount of light received by the scanner.

[0010] Furthermore, an object of the present invention is to provide a material identification system for an object to be measured that is easily portable and mobile.

[0011] The problems that this invention aims to solve are not limited to those mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0012] The above objective can be achieved, according to the present invention, by a material determination system for a measurement target, which includes an illumination device including a light-emitting unit that generates light toward the measurement target, and a scanner including an NIR sensor, which is provided to determine the material of the measurement target based on the light generated by the NIR sensor and the light-emitting unit, respectively, that is transmitted through the measurement target and received, and pre-inputted information.

[0013] The information input to the scanner may be in the wavelength band of light corresponding to the material of the object to be measured and identified.

[0014] The scanner is provided to determine the plastic material of the object to be measured, and can receive information regarding the wavelength band of light corresponding to at least one type of plastic material to be determined.

[0015] The illumination device may be positioned opposite the scanner, and may be configured such that the object to be measured is located between the illumination device and the scanner.

[0016] The lighting device may have a holding portion for holding the object to be measured.

[0017] The light-emitting part may include a halogen lamp.

[0018] The illumination device may have its light-emitting section spaced at a predetermined distance from the NIR sensor and arranged along the peripheral direction of the NIR sensor.

[0019] The lighting device may further include a diffusion member provided to diffuse the light generated from the light-emitting unit before it reaches the object to be measured.

[0020] The lighting device may include a control unit connected to the light-emitting unit and provided to control the on / off state of the light-emitting unit, a battery that supplies power to the light-emitting unit, and a switch connected to the control unit and the battery for operating the light-emitting unit.

[0021] The lighting device further includes a casing having an internal space in which the object to be measured is held and the battery and the control unit are mounted, and having an opening in which at least a portion of the area is open so that light generated from the light-emitting unit is directed toward the object to be measured, and the diffusion member can be mounted in the opening of the casing.

[0022] The control unit includes a charging confirmation member that is connected to the battery and displays the charging state of the battery. The charging confirmation member may be mounted between the light emitting units and include an LED lamp that allows the charging state of the battery to be confirmed through the opening.

[0023] The battery is provided so that charging and discharging are possible, and the control unit may be provided with a charging terminal that is connected to the battery and can supply power to the battery.

[0024] The switch and the charging terminal may be provided so as to be exposed on the side surface of the casing.

[0025] It may further include a battery housing in which the battery is housed, and the battery housing may be mounted inside the casing.

[0026] The casing may include at least one grip protrusion on the side surface.

[0027] The casing may include at least one anti-slip member on the bottom surface.

[0028] The casing includes an upper casing in which the opening is formed and at least one coupling protrusion is provided, and a lower casing in which the battery and the control unit are mounted inside and at least one coupling groove to which the coupling protrusion is coupled. On the inner surface of the upper casing, support ribs for supporting the battery housed in the lower casing project, and the upper casing and the lower casing may be provided so as to be separable from each other by the coupling protrusion and the coupling groove.

Advantages of the Invention

[0029] According to a material determination system for an object to be measured, a lighting device is used to generate and diffuse light below the object to be measured, directed toward the object and the scanner. This increases the amount of light that passes through the object and is received by the scanner. By increasing the amount of light received by the scanner, the reliability and accuracy of material determination of the object using the scanner can be improved.

[0030] Furthermore, according to the material identification system for an object to be measured, since a lighting device is installed inside the casing, the portability and mobility of the material identification system for an object to be measured can be improved. This has the advantage of being able to determine the material of the object to be measured as needed, regardless of time or location.

[0031] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by a person with ordinary skill in the art to which the present invention pertains from the following description. [Brief explanation of the drawing]

[0032] Figure 2 is a perspective view of the lighting device shown in Figure 1. Figure 3 is a left side view of the lighting device shown in Figure 2. Figure 4 is a right side view of the lighting device shown in Figure 2. Figure 5 is a rear view of the lighting device shown in Figure 2. Figure 6 shows the internal structure of the lighting device shown in Figure 2. Figure 7 is an exploded perspective view of the lighting device shown in Figure 2. Figure 8 is an enlarged view of section A shown in Figure 7. Figure 9 shows the arrangement of the light-emitting parts as shown in Figure 8. Figure 10 is a perspective view of the scanner shown in Figure 1. Figure 11 is a schematic diagram illustrating a method for determining the material of a measurement target using the material determination system shown in Figure 1. Figure 12 is a diagram illustrating the diameter of the light-emitting part and the diameter of the diffusion member relative to the NIR sensor attached to the sensing part of the scanner shown in Figure 11. Figure 13 is a graph showing the results of identifying a transparent PET material object using the material identification system for the object to be measured shown in Figure 1. Figure 14 is a graph showing the results of identifying a transparent PET material object using a conventional plastic scanner. Figure 15 is a graph showing the results of identifying an opaque PET material object using a conventional plastic scanner. Figure 16 is a graph showing the results of identifying transparent PS material objects using the material identification system for objects shown in Figure 1. Figure 17 is a graph showing the results of identifying a transparent PS material object using a conventional plastic scanner. Figure 18 is a graph showing the results of identifying an opaque PS material object using a conventional plastic scanner. Figure 19 is a graph showing the results of identifying transparent PC material objects using the material identification system for objects shown in Figure 1. Figure 20 is a graph showing the results of identifying a transparent PC material object using a conventional plastic scanner. Figure 21 is a graph showing the results of identifying an opaque PC material object using a conventional plastic scanner. [Modes for carrying out the invention]

[0033] Hereinafter, a material determination system 1000 for a measurement target according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

[0034] Furthermore, regardless of the drawing reference numerals, identical or corresponding components will be assigned the same or similar reference numerals, and redundant explanations related thereto will be omitted. For the sake of clarity, the size and shape of each component shown may be exaggerated or reduced.

[0035] The material determination system 1000 of an object to be measured according to one embodiment of the present invention is a system for determining the material of an object to be measured 10 by coming into contact with the object to be measured 10.

[0036] In particular, the material determination system 1000 of a measurement target according to one embodiment of the present invention can determine the material of a measurement target 10 having PET (Polyethylene terephthalate), polyester clothing, PVC (Polyvinyl chloride), PS (Poly styrene), PP (Poly propylene), PE (Poly ethylene), ABS (Acrylonitrile, Butadiene, Styrene), PLA (Poly lactic acid), and PC (Poly carbonate).

[0037] Preferably, the material determination system 1000 for the object to be measured can determine which of the following materials the object to be measured 10 is composed of: PP, PE, PS, PC, PVC, PET, and ABS.

[0038] Referring to Figure 1, a material determination system 1000 for an object to be measured according to one embodiment of the present invention may include an illumination device 100 including a light-emitting unit 160 that generates light on the object to be measured 10, and a scanner 200 including an NIR sensor 221, which is provided to determine the material of the object to be measured 10 based on the light generated by the NIR sensor 221 and the light-emitting unit 160, respectively, that is transmitted through the object to be measured 10 and received, and pre-inputted information.

[0039] Here, the scanner 200 can be pre-programmed with a wavelength range of light corresponding to the material of the object 10 to be measured and identified.

[0040] In other words, the scanner 200 may be configured to determine the plastic material of the object to be measured 10, and in particular, it may be input information regarding the wavelength band of light corresponding to at least one type of plastic material that is to be determined.

[0041] The method for determining the material of the object to be measured 10 using the scanner 200 will be described in detail below.

[0042] The lighting device 100 may be positioned opposite the scanner 200.

[0043] In this case, the object to be measured 10 may be located between the lighting device 100 and the scanner 200.

[0044] In particular, the light-emitting unit 160 of the illumination device 100 is positioned below the object to be measured 10 and emits light toward the object to be measured 10. The light emitted from the illumination device 10, along with the light (near-infrared; NIR) emitted from the scanner 200, passes through the object to be measured 10 and is received by the scanner 200.

[0045] In this way, by positioning the light-emitting unit 160 below the object to be measured 10 and symmetrically with respect to the scanner 200, the light generated from the light-emitting unit 160 can be well received by the NIR sensor 221 of the scanner 200.

[0046] The light-emitting unit 160 may consist of at least one of an LED lamp and a halogen lamp. In one embodiment of the present invention, the light-emitting unit 160 is preferably composed of a halogen lamp. This allows the light-emitting unit 160 to generate a wavelength band that corresponds to a light source that can be received by the NIR sensor 221 mounted on the scanner 200.

[0047] Furthermore, the light-emitting unit 160 may include multiple halogen lamps.

[0048] For example, the light-emitting section 160 may include 1 to 6 lamps, and preferably consists of 4 lamps.

[0049] Furthermore, the light-emitting unit 160 may be spaced at a predetermined interval from the NIR sensor 221 and arranged along the periphery direction with respect to the NIT sensor.

[0050] The lighting device 100 may further include a diffusion member 130.

[0051] The diffusion member 130 can diffuse the light generated from the light-emitting unit 160 before it reaches the object to be measured 10.

[0052] The diffusion member 130 covers the light-emitting unit 160, thereby diffusing the light generated from the light-emitting unit 160 toward the scanner 200.

[0053] Furthermore, the diffusion member 130 may be made of a transparent material.

[0054] The diffusion member 130 may be composed of a film, glass, or plastic material having a predetermined thickness, but is not necessarily limited to these.

[0055] In this way, by diffusing the light generated from the light-emitting unit 160 with the diffusion member 130, the amount of light received by the scanner 200 is increased, thereby improving the material discrimination error of the object to be measured 10 using the scanner 200.

[0056] Furthermore, the lighting device 100 may also include a control unit 140, a battery 150, and a switch 117.

[0057] The control unit 140 may be connected to the light-emitting unit 160 and configured to control the on / off state of the light-emitting unit 160.

[0058] The control unit 140 may be configured in the form of a PCB (Printed Circuit Board), but is not necessarily limited to this configuration.

[0059] The battery 150 can supply power to the light-emitting unit 160.

[0060] The battery 150 may be configured to allow for repeated charging and discharging. For example, the battery 150 may be configured as a lithium-ion battery.

[0061] Furthermore, the battery 150 may be connected to the light-emitting unit 160 while housed in the battery housing 152.

[0062] The battery 150 may also be connected to the control unit 140.

[0063] As a result, the control unit 140 may be provided with a charging terminal 118 connected to the battery 150. For example, the charging terminal 118 may be of type C.

[0064] The switch 117 can activate the light-emitting unit 160.

[0065] The switch 117 is connected to the control unit 140 and the battery 150, which can activate the light-emitting unit 160.

[0066] For example, the switch 117 may be provided to select whether the light-emitting unit 160 is on or off (ON / OFF) to determine the operating state of the light-emitting unit 160.

[0067] For this purpose, the switch 117 may be configured as a button so that it can be conveniently operated by the user.

[0068] Furthermore, the lighting device 100 may include a casing 110.

[0069] The casing 110 may have an internal space 116 on its upper side where the object to be measured 10 is held, and where a battery housing 152 containing a battery 150 and a control unit 140 are mounted.

[0070] Furthermore, the casing 110 may have an opening 113 formed in which at least a portion of the area is open so that light generated from the light-emitting unit 160 attached to the control unit 140 is directed toward the object to be measured 10.

[0071] In this case, the diffusion member 130 may be attached to the opening 113.

[0072] Here, the opening 113 and the diffusion member 130 are shown to be circular in shape, but this is not necessarily limited to this, and they may be formed in various shapes such as elliptical or square as needed.

[0073] By attaching the diffusion member 130 to the opening 113 of the casing 110, the light generated from the light-emitting unit 160 is diffused, increasing the amount of light that passes through the object to be measured 10 and is received by the scanner 200.

[0074] A buffer member 132 may be provided between the opening 113 and the diffusion member 130.

[0075] The cushioning member 132 may be configured in a ring shape and have a predetermined thickness. For example, the cushioning member 132 may be made of foam, rubber, silicone, or the like.

[0076] Here, since the diffusion member 130 is made of a relatively thin material such as plastic or glass, there is a risk of it being damaged by external impact or pressure. By installing the cushioning member 132 between the casing 110 and the diffusion member 130, the possibility of damage to the diffusion member 130 can be reduced.

[0077] Furthermore, the control unit 140 may also include a charging confirmation member 154.

[0078] The charging confirmation member 154 is connected to the battery 150, and the charging status of the battery 150 is displayed, allowing the user to visually confirm the charging status of the battery 150.

[0079] For example, the charging confirmation member 154 may include an LED lamp. In this case, the charging confirmation member 154 may be set to light up red while the battery 150 is being charged, and to light up green when the battery 150 is fully charged. Alternatively, the LED lamp may be set not to light up when the battery 150 is not being charged.

[0080] Furthermore, the charging confirmation member 154 may be provided between the light-emitting units 160.

[0081] The user can sense the illumination and light emission status of the charging confirmation member 154 through the diffusion member 130 installed in the opening 113 of the casing 110.

[0082] The light-emitting units 160 may be arranged around the charging confirmation member 154, spaced apart from each other at predetermined intervals along the periphery.

[0083] For example, as shown in Figures (9)(a) and (b), the light-emitting section 160 may be arranged in various configurations around the charge confirmation member 154. However, the arrangement of the light-emitting section 160 is not limited to this.

[0084] Furthermore, a portion of the switch 117 and the charging terminal 118 may be exposed on the side of the casing 110. This allows the user to easily operate the light-emitting unit 160 using the switch 117 and easily charge the battery 150 using the charging terminal 118.

[0085] The casing 110 may be provided in a separable form.

[0086] For example, the casing 110 may include an upper casing 112 and a lower casing 115.

[0087] The outer upper end surface of the upper casing 112 can be a holding portion for holding the object to be measured 10.

[0088] Furthermore, an opening 113 into which a diffusion member 130 is attached may be formed on the upper end surface of the upper casing 112.

[0089] The lower casing 115 may be provided with an internal space 116 in which a battery housing 152 containing a battery 150 and a control unit 140 are mounted. The battery housing 152 and the control unit 140 can be mounted in the internal space 116 by coupling means such as bolts (not shown).

[0090] Support ribs 114 may be provided on the inner surface of the upper casing 112.

[0091] The support rib 114 is a component that prevents the battery 150, which is mounted inside the lower casing 115, from moving.

[0092] The support rib 114 may be provided so as to protrude from the inner surface of the upper casing 112 toward the lower casing 115. Alternatively, the support rib 114 may be provided so as to surround the battery 150, with at least a portion of its area being formed as a curved surface.

[0093] For example, multiple support ribs 114 may be provided along the inner surface of the upper casing 112 at predetermined intervals. In this case, the number of support ribs 114 can correspond to the number of batteries 150 installed inside the lower casing 115.

[0094] Furthermore, the upper casing 112 may be provided with at least one coupling projection 112a inside, and the lower casing 115 may be provided with at least one coupling groove 115a that connects with the coupling projection 112a of the upper casing 112.

[0095] With the connecting projection 112a of the upper casing 112 and the connecting groove 115a of the lower casing 115 connected to each other, the upper casing 112 and the lower casing 115 are joined by a connecting member 120 inserted from the underside of the lower casing 115 toward the upper casing 112.

[0096] Furthermore, the casing 110 may be made of a lightweight plastic material to facilitate portability and mobility.

[0097] In such a case, the position of the casing 110 can move during the process of determining the plastic material of the object to be measured 10 while the casing 110 is placed at the bottom. To prevent the casing 110 from moving in this way, the lower casing 115 may include an anti-slip member 119.

[0098] The anti-slip member 119 may be provided on the bottom surface of the lower casing 115. Alternatively, the anti-slip member 119 may be provided at each corner of the lower casing 115.

[0099] The anti-slip member 119 may be made of silicone, rubber, or the like, but is not necessarily limited to these materials.

[0100] Here, the anti-slip member 119 prevents the casing 110 from slipping and at the same time blocks the insertion hole (not shown) into which the connecting member 120, which connects the upper casing 112 and the lower casing 115, is inserted.

[0101] Furthermore, at least one label L may be attached to the bottom surface of the lower casing 110. For example, the label L may contain information about the lighting device 100.

[0102] Furthermore, the casing 110 may include at least one gripping projection 111 on its side.

[0103] In other words, the gripping projection 111 may be provided across both sides of the upper casing 112 and the lower casing 115.

[0104] The gripping projection 111 makes it easy for the user to hold the casing 110 in their hand, thereby making it convenient to carry and transport.

[0105] Furthermore, the material determination system 1000 of the object to be measured according to one embodiment of the present invention determines the material of the object to be measured 10 based on the amount of light received by the scanner 200.

[0106] Referring to Figure 10, a scanner 200 according to one embodiment of the present invention may include a body 210, a sensing unit 220 on which an NIR sensor 221 is attached, a front cover 212 covering the sensing unit 220, an operating switch 117 provided on the body 210 which is activated to contact the object to be measured 10 using the sensing unit 220 and to determine the plastic material of the object to be measured 10, and a result confirmation unit 230 which displays the determination result of the plastic material of the object to be measured 10 determined by the operation of the operating switch 117.

[0107] The sensing unit 220 may be provided with an NIR sensor 221 mounted in its central region, but is not necessarily limited to this configuration.

[0108] The activation switch 117 may be located in a position where the user's thumb rests when holding the scanner 200. This makes it easier to operate the activation switch 117 of the scanner 200.

[0109] The result confirmation unit 230 may be composed of an LCD panel.

[0110] The result confirmation unit 230 may display the material of the object to be measured 10 as determined by the scanner 200. It may also display a graph containing the wavelength range corresponding to the material of the object to be measured 10. Furthermore, if necessary, it may be configured to display the purity of the plastic material contained in the determined object to be measured 10.

[0111] The following briefly describes the usage sequence of the material identification system 1000 for a measurement target according to one embodiment of the present invention, with reference to Figure 11.

[0112] First, the user generates light from the light-emitting part 160 of the lighting device 100.

[0113] Next, the user positions the object to be measured 10 on the lighting device 100 and holds it in place with one hand H.

[0114] Next, the user uses their other hand H to bring the scanner 200 into contact with the object to be measured 10, and then presses the operating switch 117 of the scanner 200.

[0115] As a result, the light generated and diffused from the light-emitting unit 160 passes through the object to be measured 10, and the transmitted light is received by the sensing unit 220 of the scanner 200.

[0116] In this case, the NIR sensor 221 attached to the sensing unit 220 of the scanner 200 can also generate a predetermined amount of light toward the object to be measured 10.

[0117] The scanner 200 can determine the material of the object to be measured 10 by coming into contact with the object to be measured 10 which is placed on the lighting device 100.

[0118] In particular, the scanner 200 receives light that is irradiated from the NIR sensor 221 and passes through the object to be measured 10, and light that is generated and diffused from the illumination device 100 and passes through the object to be measured 10.

[0119] The scanner 200 determines the material of the object to be measured 10 based on the amount of light received and pre-entered information.

[0120] As described above, the information pre-input into the scanner 200 may be the wavelength band of light corresponding to the material of the object to be measured 10 that is to be determined.

[0121] For example, if the amount of light received by the scanner 200 is approximately 1541 to 2445 nm, a peak will occur in the wavelength range (nm) corresponding to the amount of light received (intensity), and the material of the object to be measured 10 will be determined through the wavelength range in which the peak occurred.

[0122] Furthermore, the diameter D1 of the sensing unit 220 of the scanner 200 may be the same as or smaller than the diameter D2 of the diffusion member 130 mounted in the opening 113 of the casing 110.

[0123] For example, referring to Figure 12, the diameter D2 of the diffusion member 130 may be set to be larger than the diameter D1 of the sensing unit 220 of the scanner 200.

[0124] As a result, the light-emitting section 160, which is covered by the diffusion member 130, can be located inside the sensing section 220.

[0125] The following briefly describes the results of plastic material determination of the object to be measured 10 using the material determination system 1000 according to one embodiment of the present invention, with reference to Figures 13 to 21.

[0126] First, identify the object 10 to be measured, which is made of transparent PET material, by referring to Figures 13 and 14. In Figures 13 and 14, the photograph on the left is the object 10 to be measured, which is made of transparent PET material.

[0127] As shown in Figure 13, in the material identification system 1000 of a measurement target according to one embodiment of the present invention, light is generated from the illumination device 100 toward the measurement target 10 made of transparent PET material and diffuses, so the amount of light (received amount; raw intensity) received by the scanner 200 is approximately 1989 to 2445 DN. Therefore, it can be seen that a peak occurs at 1665 nm, which is the wavelength range of the measurement target 10 made of transparent PET material.

[0128] Conversely, as shown in Figure 14, when the transparent PET material object 10 is identified using only the scanner 200, as in the conventional method, without using the illumination device 100, the amount of light received by the scanner 200 (received light amount) is approximately 1541 to 1702 nm. This indicates that the amount of light received by the scanner 200 is insufficient, and therefore, no peak occurs in the wavelength range of the transparent PET material object 10.

[0129] For reference, the photograph on the left in Figure 15 shows the object 10 being measured, which is made of opaque PET material.

[0130] As shown in Figure 15, when a transparent PET material object 10 is identified using only the scanner 200 and without the illumination device 100, a peak similar to that of opaque PET object 10, specifically at 1665 nm, is observed. In the case of opaque PET material, light is reflected normally by the object 10 even without additional light, so a peak occurs in the same wavelength range as when identifying transparent PET material, without the need for additional light.

[0131] Furthermore, the transparent PS material object 10 is identified by referring to Figures 16 and 17. In Figures 16 and 17, the photograph on the left is the transparent PS material object 10.

[0132] As shown in Figure 16, in the material identification system 1000 of a measurement target according to one embodiment of the present invention, light is generated from the illumination device 100 toward the measurement target 10 made of transparent PS material and diffuses, so that the amount of light received by the scanner 200 is approximately 1522 to 1989 DN. Therefore, it can be seen that a peak occurs at 1690 nm, which is the wavelength range of the measurement target 10 being transparent PS.

[0133] Conversely, as shown in Figure 17, when the transparent PS material object 10 is identified using only the scanner 200, as in the conventional method, without using the illumination device 100, the amount of light received by the scanner 200 (received light amount) is approximately 1500 to 1699 DN. In this case, it can be seen that because the amount of light received by the scanner 200 is insufficient, no peak occurs in the wavelength range of the transparent PS material object 10.

[0134] For reference, the photograph on the left in Figure 18 shows the object 10 being measured, which is made of opaque PS material.

[0135] As shown in Figure 18, when a transparent PS material object 10 is identified using only the scanner 200 and without the illumination device 100, a peak similar to that of opaque PS material object 10, specifically at 1690 nm, is observed. This is because, in the case of opaque PS material, light is reflected normally by the object 10 even without additional light, resulting in a peak occurring in the same wavelength range as when identifying transparent PS material.

[0136] Furthermore, the transparent PC material object 10 is identified by referring to Figures 19 and 20. In Figures 19 and 20, the photograph on the left is the transparent PC material object 10.

[0137] As shown in Figure 19, in the material identification system 1000 of a measurement target according to one embodiment of the present invention, light is generated from the illumination device 100 toward the measurement target 10 made of transparent PC material and diffuses, so the amount of light received by the scanner 200 (received light amount) is approximately 2536 to 4334 DN. Therefore, it can be seen that a peak occurs at 1690 nm, which is the wavelength range of the measurement target 10 made of transparent PC material.

[0138] Conversely, as shown in Figure 20, when the transparent PC material object 10 is identified using only the scanner 200, as in the conventional method, without using the illumination device 100, the amount of light received by the scanner 200 is approximately 1063 to 1233 DN. This indicates that the amount of light received by the scanner 200 is insufficient, and therefore no peak occurs in the wavelength range of the transparent PC material object 10.

[0139] For reference, the photograph on the left in Figure 21 shows the object 10 being measured, which is made of opaque PC material.

[0140] As shown in Figure 21, when a transparent PC material object 10 is identified using only the scanner 200 without using the illumination device 100, a peak similar to the 1690 nm wavelength range found in the opaque PC object 10 is observed. In the case of opaque PC material, light is reflected normally by the object 10 even without additional light, so a peak occurs in the same wavelength range as when identifying transparent PC material, without the need for additional light.

[0141] The preferred embodiments of the present invention described above are disclosed for illustrative purposes only, and it will be apparent to those skilled in the art that various modifications, changes, and additions are possible within the spirit and scope of the invention, and these modifications, changes, and additions should be construed as being within the scope of the following claims. [Industrial applicability]

[0142] According to a material determination system for a measurement target according to one embodiment of the present invention, an illumination device that generates and diffuses light from below the measurement target toward the measurement target and the scanner can increase the amount of light received by the scanner, thereby improving the reliability and accuracy of material determination of the measurement target using the scanner.

Claims

1. A lighting device including a light-emitting unit that generates light toward the object to be measured, A system for determining the material of an object to be measured, comprising: an NIR sensor; a scanner provided to determine the material of the object to be measured based on light generated by the NIR sensor and the light-emitting unit, respectively, and received after passing through the object to be measured, and pre-inputted information.

2. The material determination system for an object to be measured according to claim 1, wherein the information input to the scanner is a wavelength band of light corresponding to the material of the object to be measured that is to be determined.

3. The aforementioned scanner, The following are provided to determine the plastic material of the object to be measured: The material determination system for an object to be measured according to claim 2, wherein information regarding the wavelength band of light corresponding to at least one type of plastic material to be determined is input.

4. The lighting device is positioned opposite the scanner, The material determination system for an object to be measured according to claim 1, provided such that the object to be measured is positioned between the lighting device and the scanner.

5. The aforementioned lighting device is The material determination system for a measurement target according to claim 4, further comprising a holding portion for holding the measurement target.

6. The light-emitting part is, A material determination system for an object to be measured according to claim 1, comprising a halogen lamp.

7. The aforementioned lighting device is The material determination system for an object to be measured according to claim 6, wherein the light-emitting unit is spaced at a predetermined distance from the NIR sensor and arranged along the peripheral direction of the NIR sensor.

8. The aforementioned lighting device is The material determination system for an object to be measured according to claim 1, further comprising a diffusion member provided to diffuse the light generated from the light-emitting unit before it reaches the object to be measured.

9. The aforementioned lighting device is A control unit is connected to the light-emitting unit and is provided to control the on / off state of the light-emitting unit. A battery that supplies power to the light-emitting unit, The material determination system for an object to be measured according to claim 8, further comprising a switch connected to the control unit and the battery for operating the light-emitting unit.

10. The aforementioned lighting device is The casing further includes an internal space in which the object to be measured is held and the battery and the control unit are mounted, and which has an opening in which at least a portion of the area is open so that light generated from the light-emitting unit is directed toward the object to be measured, The material determination system for an object to be measured according to claim 9, wherein the diffusion member is fitted into the opening of the casing.

11. The control unit is connected to the battery and includes a charge confirmation member that displays the charge status of the battery. The material determination system for an object to be measured according to claim 10, wherein the charging confirmation member includes an LED lamp mounted between the light-emitting parts, and the charging status of the battery can be confirmed through the opening.

12. The aforementioned battery is provided in such a way that it can be charged and discharged. The material determination system for an object to be measured according to claim 11, wherein the control unit is provided with a charging terminal that is connected to the battery and capable of supplying power to the battery.

13. The material determination system for an object to be measured according to claim 12, wherein the switch and the charging terminal are provided so as to be exposed on the side surface of the casing.

14. The battery housing in which the aforementioned battery is housed further includes The material determination system for an object to be measured according to claim 12, wherein the battery housing is mounted inside the casing.

15. The aforementioned casing is The material determination system for an object to be measured according to claim 12, comprising at least one gripping projection on its side.

16. The aforementioned casing is The material determination system for an object to be measured according to claim 12, comprising at least one anti-slip member on the bottom surface.

17. The aforementioned casing is An upper casing having the aforementioned opening formed and provided with at least one connecting projection, The lower casing includes the battery and control unit mounted inside, and is provided with at least one coupling groove into which the coupling projections connect, Support ribs are provided protruding from the inner surface of the upper casing to support the battery housed in the lower casing. The material determination system for an object to be measured according to claim 12, wherein the upper casing and the lower casing are provided to be separable from each other by the connecting protrusions and the connecting grooves.

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