KR102640510B1 - Eye-safe infrared smart scale - Google Patents

Abstract

The eye-safe infrared smart scale according to the present invention includes an image sensor unit that converts an optical image of the object to be measured into an image signal using infrared rays that are safe not only for human eyes but also for the object to be measured on the scale plate; An image processing unit located inside the balance plate, electrically connected to the image sensor unit, and receiving the image signal of the object to be measured from the image sensor unit to process the image signal; and a control/calculation unit located inside the scale plate, electrically connected to the image processing unit, receiving the image signal of the object to be measured from the image processing unit, and calculating the positional relationship between the image sensor unit and the object to be measured based on the image signal.

Description

Eye-Safe Infrared Smart Scale{EYE-SAFE INFRARED SMART SCALE}

The present invention relates to an eye-safe infrared smart scale that measures the weight and volume of an object to be measured.

In general, accurate weight measurement is essential when processing postal parcels or various baggage processed at post offices or convenience stores. In other words, at post offices, convenience stores, etc., ordinary scales (small or large scales) are purchased, packages or baggage are placed on the scale, and the weight is measured. The weight of postal parcels and various baggage handled by post offices and delivery companies must be measured accurately because charges may be determined based on weight.

However, not only the weight but also the volume of the parcel or baggage affects the delivery fee. In other words, even if the weight is light, the larger the volume, the higher the fee. In addition, as fresh delivery has recently become popular and overpackaging that increases volume has expanded, it is expected that environmental protection can be expected if measurement technology to control this becomes common and the volume-centered fee system is strengthened. To this end, smart scales have been released on the market and are widely used to measure the weight and volume of parcels or baggage.

However, since the smart scale uses a light source in the visible light band, it has a negative effect on the user's eye health, and is applied to measurement objects that are sensitive to ultraviolet rays and visible light (medicines, chemicals, food, etc.) or measurement objects that have functionality containing them. There is a problem that is difficult to solve. In addition, because the smart scale places a number of sensors protruding from the top of the scale on which the delivery or baggage is placed, the packaging material or internal objects of the delivery or baggage are damaged when the sensors come into contact with the delivery or baggage.

Meanwhile, the smart scale is similarly disclosed as prior art in Korean Patent Publication No. 10-1890726 and Korean Patent Publication No. 10-2380306.

Korean Patent Publication No. 10-1890726

The present invention was developed to solve the problems of the prior art. When an object to be measured is placed on a scale plate, the weight and volume of the object to be measured are measured without using high-energy visible light and without protruding the sensors from the scale plate. The purpose is to provide an eye-safe infrared smart scale suitable for minimizing the number of.

The eye-safe infrared smart scale according to the present invention captures the object to be measured when infrared rays are irradiated from a light source toward the object to be measured on the scale plate and converts the optical image of the object to be measured into an image signal. an image sensor unit; an image processing unit located inside the scale plate, electrically connected to the image sensor unit, and receiving the image signal of the object to be measured from the image sensor unit and processing the image signal; and is located inside the scale plate, is electrically connected to the image processing unit, receives the image signal of the object to be measured from the image processing unit, and obtains a positional relationship between the image sensor unit and the object to be measured based on the image signal. and a control/calculation unit, wherein the image sensor unit detects the infrared rays of the light source to photograph the object to be measured, and the positional relationship between the image sensor unit and the object to be measured is determined at the center of the image sensor unit. It is characterized by finding the angle formed with both edges of the measurement object.

When the scale plate is fixed to the light source and the image sensor unit through the connection part, the light source is electrically connected to the control/calculation unit through the connection part, and the image sensor unit. It can be electrically connected to the image processing unit through the connection part.

The scale plate is fixed to the light source and the image sensor unit through a connection part, the object to be measured forms a rectangular parallelepiped and has a, b, and c on the short side, long side, and height, respectively, and the image sensor unit is the object to be measured. When located at the center of the object to be measured on the rectangular upper surface of water, the control/calculation unit determines the angle formed between the center of the image sensor unit and both corners of the object to be measured along the short and long sides of the rectangular upper surface of the object. Measured as θa and θb, half of the short side on the rectangular upper surface of the object to be measured is measured as d/tan(90-(θa/2)) and half of the long side as d/tan(90-(θb/2)) And the volume of the object to be measured is measured as {[d/tan(90-(θa/2))]*2}*{[d/tan(90-(θb/2))]*2}*c. You can.

When the object to be measured is made of a rectangular parallelepiped and the scale plate is fixed to the light source and the image sensor unit through a connection part, the lens distortion of the image sensor unit is caused by the image sensor unit, the image processing unit, and the control/ Through the calculation unit, the first optical image or first image data of the object to be measured, together with the reference pattern that is detached from the scale plate and formed into a cube and has a square upper surface, or a network shape repeatedly formed on the surface of the scale plate on the scale plate. By comparing the second optical image or second image data of a plurality of square unit grids drawn or a grid pattern having a plurality of square unit grids detached on the balance plate, at least one of the short side and the long side on the rectangular upper surface of the object to be measured Alternatively, correction may be made by adding or subtracting the absolute value difference between the first optical image and the second optical image or the absolute value difference between the first image data and the second image data.

When the scale plate is fixed to the light source and the image sensor unit through a connection part, a LiDAR is placed around the image sensor unit, and a distance is located inside the scale plate and electrically connected to the LiDAR through the connection part. It may further include an information processing unit, and the distance information processing unit may be electrically connected to the control/calculation unit within the scale plate.

The LIDAR receives the infrared rays by reflecting the infrared rays from the object to be measured while irradiating the infrared rays on the object to be measured, and the distance information processing unit determines the time between when the infrared rays are irradiated and when they are received. Measuring the interval, the control/calculation unit may measure the distance between the object to be measured and the lidar as d based on the time interval of the distance information processor and the propagation speed of the infrared rays.

When the internal program of the control/calculation unit stores the distance between the scale plate and the lidar as H and the distance between the measured object and the lidar as d, the measured object and the lidar are stored as d. Distortion of the distance between the measured object and the lidar, the distance between the scale plate and the lidar through the control/calculation unit, and the absolute distance between the measured object and the lidar It can be corrected by adding or subtracting the value difference.

When the scale plate is fixed to the light source and the image sensor unit through a connection part, it further includes a weight sensor unit inside the scale plate, and the weight sensor unit is electrically connected to the control/calculation unit within the interior of the scale plate. You can access it by .

When the internal program of the control/calculation unit stores a first weight when the object to be measured is not present on the balance plate and a second weight when the object to be measured is present on the balance plate, the weight of the object to be measured is stored. Distortion may be corrected by adding or subtracting the absolute value difference between the first weight and the second weight through the control/calculation unit to the second weight of the object to be measured.

When the balance plate is fixed to the light source and the image sensor unit through a connection portion, and the object to be measured is made of a cube, an 'ㄱ'-shaped reference fitting wall and an 'ㄴ'-shaped reference fitting are placed on the balance plate. It further includes a wall, wherein the 'ㄱ'-shaped reference fitting wall is positioned diagonally with the 'ㄴ'-shaped reference fitting wall on the balance plate, and the object to be measured is diagonal from the object to be measured. Among the two opposing edges, individual corners can be inserted into the 'ㄱ' shaped standard fitting wall or the 'ㄴ' shaped standard fitting wall.

When the internal program of the control/calculation unit inserts one of the two diagonally opposite corners of the object to be measured into an 'ㄱ' shaped reference fitting wall, a square upper surface of the object to be measured is drawn from the center of the image sensor unit. By drawing a perpendicular line from the center of the image sensor unit to both corners of the object to be measured, the first left angle and the first right angle greater than the first left angle are stored as θl and θr, and the When inserting one of the two diagonally opposite corners into the 'ㄴ'-shaped reference fitting wall, a perpendicular line is drawn from the center of the image sensor unit to the square upper surface of the object to be measured, and the measured object is drawn from the center of the image sensor unit. The second left angle formed with the two corners of the water and the second right angle smaller than the second left angle are stored as θl and θr, and the angular distortion of the image sensor unit is calculated as the first left angle through the control/calculation unit. It can be corrected by adding or subtracting the absolute value difference between the first left angle and the second left angle, and the absolute value difference between the first right angle and the second right angle to the first right angle.

When the scale plate moves up and down relative to the light source and the image sensor unit through the connection part, the LIDAR is positioned around the image sensor unit, and is located inside the scale plate and electrically connected to the LIDAR through the connection part. It further includes a distance information processing unit, wherein the distance information processing unit can be electrically connected to the control/calculation unit inside the scale plate.

The LIDAR receives the infrared rays by reflecting the infrared rays from the object to be measured while irradiating the infrared rays on the object to be measured, and the distance information processing unit determines the time between when the infrared rays are irradiated and when they are received. Measuring the interval, the control/calculation unit may measure the distance between the object to be measured and the lidar as d or d1 based on the time interval of the distance information processor and the propagation speed of the infrared rays.

The internal program of the control/calculation unit stores the distance between the scale plate and the lidar as H at the initial position of the scale plate, and stores the distance between the object to be measured and the lidar at the initial position of the scale plate as d. When storing the distance between the object to be measured and the lidar as d1 when the scale plate moves, the distortion of the distance between the object to be measured and the lidar is caused by the distance between the object to be measured and the lidar at the initial position of the scale plate. and the distance between the scale plate and the lidar at the initial position of the scale plate through the control/calculation unit. In addition, it can be corrected by adding or subtracting the absolute value difference in the distance between the measured object and the lidar at the initial position of the scale plate or when the scale plate moves up and down.

When the scale plate moves up and down relative to the light source and the image sensor unit through the connection part, the weight sensor unit further includes a weight sensor unit inside the balance plate, and the control/calculation unit is located inside the balance plate. can be electrically connected to.

When the internal program of the control/calculation unit stores a third weight when the object to be measured is not present on the balance plate and a fourth weight when the object to be measured is present on the balance plate, the weight of the object to be measured is stored. Distortion may be corrected by adding or subtracting the absolute value difference between the third weight and the fourth weight through the control/calculation unit to the fourth weight of the object to be measured.

When the balance plate moves up and down relative to the light source and the image sensor unit through the connection portion, and the object to be measured is made of a cube, an 'ㄱ'-shaped reference insertion wall and an 'ㄴ'-shaped reference wall are placed on the balance plate. It further includes a reference fitting wall, wherein the 'ㄱ' shaped reference fitting wall is positioned diagonally with the 'ㄴ' shaped reference fitting wall on the balance plate, and the object to be measured is, One of the two diagonally opposite corners can be inserted into the 'ㄴ' shaped reference insertion wall.

When the internal program of the control/calculation unit positions the image sensor unit at the center of the object to be measured on the square upper surface of the object to be measured, at the initial position of the scale plate, the center of the image sensor unit is connected to both corners of the object to be measured. The central angle formed between the two corners of the object to be measured at the center of the image sensor unit when the scale plate moves upward is stored as θ1, and when the scale plate moves downward, the center of the image sensor unit is stored as θ1. The second central angle formed with the two corners of the object to be measured is stored as θ2, and the angular distortion of the image sensor unit is added to the central angle by the absolute value difference between the first central angle and the second central angle through the control/calculation unit. It can be corrected by adding or subtracting .

The scale plate moves up and down relative to the light source and the image sensor unit below the light source and the image sensor unit or moves relatively horizontally with respect to the light source and the image sensor unit, and a weight sensor unit is installed inside the balance plate. In a plurality, the object to be measured is placed on the weight sensor unit for each weight sensor unit on the scale plate, and when the object to be measured is made of a rectangular parallelepiped, the light source and the image sensor unit are positioned in a predetermined area of the scale plate. It is positioned so that it can repeatedly encounter the object to be measured.

It further includes a LiDAR located around the image sensor unit, and a distance information processing unit electrically connected to the LiDAR inside the scale plate, wherein the image sensor unit is electrically connected to the image processing unit, and the measured object. It is located at the center of the object to be measured on the rectangular upper surface of the water, and the distance information processing unit is electrically connected to the control/calculation unit, and the control/calculation unit is configured to: When the scale plate moves up and down relative to the image sensor unit, The scale plate, the LiDAR, and the distance information processing unit correct the distance distortion between the object to be measured and the LiDAR through the presence or absence of the object to be measured, and the weight sensor unit determines the presence or absence of the object to be measured. Weight distortion of the weight sensor unit can be corrected, and angular distortion formed between the center of the image sensor unit and both corners of the object to be measured can be corrected.

It further includes a LiDAR located around the image sensor unit, and a distance information processing unit electrically connected to the LiDAR inside the scale plate, wherein the image sensor unit is electrically connected to the image processing unit, and the measured object. It is located at the center of the object to be measured on the rectangular upper surface of the water, and the distance information processing unit is electrically connected to the control/calculation unit, and the control/calculation unit is configured to: When the scale plate moves relative to the image sensor unit in a horizontal direction, Measure the short side or long side of the object to be measured through the curve of the scale plate and the object to be measured through the lidar and the distance information processor, and optical image or image data of the object to be measured through the image sensor unit and the image processor. , and the short side or long side of the object to be measured can be corrected by comparing the optical image or image data of the object to be measured.

The scale plate moves relatively horizontally with respect to the light source and the image sensor unit below the light source and the image sensor unit, has a plurality of weight sensor units inside the balance plate, and has the weight sensor unit for each weight sensor unit on the balance plate. When the object to be measured is placed on the sensor unit and the object to be measured is made of a rectangular parallelepiped, the light source and the image sensor unit are located in a predetermined area of the scale plate and can repeatedly face the object to be measured.

It further includes a LIDAR located in the central area of the object to be measured, and a distance information processing unit electrically connected to the LIDAR inside the scale plate, wherein the image sensor unit determines the amount of the LIDAR when the scale plate is horizontally moved. It is located along the short side of the object to be measured at the side, and is electrically connected to the image processing unit. The distance information processing unit is electrically connected to the control/calculation unit, and the control/calculation unit is connected to the image sensor unit. During the relative horizontal movement of the scale plate, the short side or long side of the object to be measured is measured through the curve of the scale plate and the object to be measured through the lidar and the distance information processor, and the short side or long side of the object to be measured is measured through the image sensor unit and the image processor. The optical image or image data of the object to be measured can be secured, and the long side of the object to be measured can be corrected by comparing the long side of the object to be measured with the optical image or image data of the object to be measured.

The scale plate moves relatively horizontally with respect to the light source and the image sensor unit below the light source and the image sensor unit, has a plurality of weight sensor units inside the balance plate, and has the weight sensor unit for each weight sensor unit on the balance plate. When the object to be measured is placed on the sensor unit and the object to be measured is made of a rectangular parallelepiped, the light source and the image sensor unit are located in a predetermined area of the scale plate and can repeatedly face the object to be measured.

It further includes a LIDAR located in the central area of the object to be measured, and a distance information processing unit electrically connected to the LiDAR inside the scale plate, wherein the image sensor unit is further along the long side of the object to be measured than the long side. It is positioned long and is electrically connected to the image processing unit, and the distance information processing unit is electrically connected to the control/calculation unit, wherein the control/calculation unit is configured to: When the scale plate moves relative to the image sensor unit horizontally, Through the lidar and the distance information processor, the length of the short side or long side of the object to be measured is measured through the scale plate and the curve of the object to be measured, and an optical image or image of the object to be measured is obtained through the image sensor unit and the image processor. The long side of the object to be measured can be corrected by securing image data and comparing the long side of the object to be measured with the optical image or image data of the object to be measured.

a LiDAR located in the central area of the object to be measured, and a distance information processing unit electrically connected to the LiDAR inside the scale plate; a weight sensor unit located inside the scale plate and electrically connected to the control/calculation unit; And it may further include a display and a communication unit electrically connected to the control/calculation unit inside the scale plate.

The LiDAR receives the infrared rays by reflecting the infrared rays from the object to be measured while irradiating the infrared rays on the object to be measured, and the distance information processing unit receives the infrared rays from the LiDAR. The time interval at which the infrared rays are transmitted to the LiDAR is measured, and the control/calculation unit determines the time interval between the measured object and the LiDAR based on the time interval of the distance information processor and the propagation speed of the infrared rays. Distance can be measured.

The display displays the control status of the weight sensor unit, image processing unit, or distance information processing unit of the control/calculation unit, or receives the data output value from the control/calculation unit and displays the data output value, and the communication unit controls the control unit. / The control status and the data output value of the calculation unit can be wirelessly sent to a remote location, or the data input value can be received wirelessly from the remote location and the data input value can be transmitted to the control / calculation unit to enable remote monitoring.

The eye-safe infrared smart scale according to the present invention receives infrared rays by reflecting the infrared rays from the scale plate or the measured object while irradiating infrared rays on the scale plate or the measured object. am; a distance information processing unit that measures the time interval between the point in time when the infrared ray is irradiated from the lidar and the point in time when the infrared ray is transmitted to the lidar; and is located inside the scale plate, is electrically connected to the distance information processing unit, receives the time interval from the distance information processing unit, and determines the distance between the scale plate and the lidar or the object to be measured based on the propagation speed of the infrared rays. and a control/calculation unit that calculates the distance between the lidar and the lidar, wherein the lidar is positioned along the long side of the object to be measured and longer than the long side.

The control/calculation unit measures the length of the short side and long side of the measured object through the curves of the scale plate and the measured object through the LiDAR and the distance information processing unit when the scale plate moves horizontally relative to the LIDAR. can do.

A weight sensor unit located inside the scale plate and electrically connected to the control/calculation unit when the scale plate moves horizontally relative to the lidar; And it may further include a display and a communication unit electrically connected to the control/calculation unit inside the scale plate.

The display displays the control status of the weight sensor unit, image processing unit, or distance information processing unit of the control/calculation unit, or receives the data output value from the control/calculation unit and displays the data output value, and the communication unit controls the control unit. / The control status and the data output value of the calculation unit can be wirelessly sent to a remote location, or the data input value can be received wirelessly from the remote location and the data input value can be transmitted to the control / calculation unit to enable remote monitoring.

The eye-safe infrared smart scale according to the present invention,

A light source using infrared rays, an image sensor unit, and a lidar using infrared rays are placed on the scale plate, or a lidar using infrared rays is placed alone on the scale plate, and a weight sensor is provided inside the scale plate to measure the object to be measured and seated on the scale plate. Measure weight and volume,

An image processing unit, a distance information processing unit, a control/calculation unit, a display, and a communication unit are provided inside the scale plate to increase the degree of freedom of movement of the object to be measured on the scale plate, and to correct the length of individual sides of the object to be measured or to adjust the distance between the object to be measured and the lidar. Because it easily corrects the distance or the angle formed between the center of the image sensor unit and both corners of the object to be measured,

When placing an object to be measured on a scale plate, infrared rays are used instead of visible light to measure the weight and volume of the object to be measured, protecting the user's eyes and minimizing the number of sensors without protruding the sensors from the scale plate.

In particular, it is possible to safely measure the volume of an object to be measured that contains or may contain contents (medicines, chemicals, food) that can be deformed by being sensitive to ultraviolet rays and visible light.

Figure 1 is a block diagram showing an eye-safe infrared smart scale according to a first embodiment of the present invention.
Figure 2 is a perspective view schematically showing the iSafe infrared smart scale of Figure 1.
Figures 3 and 4 are schematic diagrams illustrating the volume measurement of an object to be measured in the iSafe infrared smart scale of Figure 2.
Figure 5 is a plan view showing the reference pattern used in the iSafe infrared smart scale of Figure 2.
Figure 6 is a plan view showing the grid pattern used in the iSafe infrared smart scale of Figure 2.
Figures 7 and 8 are schematic diagrams illustrating weight correction in the iSafe infrared smart scale of Figure 2.
Figures 9 to 12 are schematic diagrams illustrating angle distortion correction of the image sensor unit in the i-safe infrared smart scale of Figure 2.
Figures 13 and 14 are schematic diagrams explaining distance distortion correction between the object to be measured and lidar in the iSafe infrared smart scale of Figure 2.
Figures 15 to 18 are schematic diagrams illustrating angular distortion correction of the image sensor unit through the upward movement of the scale plate in the i-safe infrared smart scale of Figure 2.
FIGS. 19 to 22 are schematic diagrams illustrating correction of distance or weight or angle or length distortion through vertical or horizontal movement of the scale plate in the i-safe infrared smart scale of FIG. 2.
Figures 23 to 25 are schematic diagrams illustrating correction of the length of an object to be measured through horizontal movement of the scale plate in the first modified example of the i-safe infrared smart scale of Figure 2.
Figures 26 to 29 are schematic diagrams illustrating correction of the length of an object to be measured through horizontal movement of the scale plate in the second modified example of the i-safe infrared smart scale of Figure 2.
Figure 30 is a block diagram showing the i-safe infrared smart scale according to the second embodiment of the present invention.
Figures 31 to 34 are schematic diagrams explaining the function of LiDAR in the iSafe infrared smart scale of Figure 30.

The detailed description of the present invention described below refers to the accompanying drawings, which show by way of example specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the invention are different from one another but are not necessarily mutually exclusive. For example, specific shapes, structures and characteristics described herein may be implemented in one embodiment without departing from the spirit and scope of the invention. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description that follows is not intended to be taken in a limiting sense, and the scope of the invention is limited only by the appended claims, together with all equivalents to what those claims assert, if properly described. Similar reference numerals in the drawings refer to identical or similar functions across various aspects, and the length, area, thickness, etc. may be exaggerated for convenience. In addition, in the following, the object to be measured is expressed only as a hexahedron, but approximate volume measurements are possible for objects to be measured in various shapes.

Hereinafter, preferred embodiment(s) of the present invention will be described in detail with reference to the attached drawings in order to enable those skilled in the art to easily practice the present invention. .

FIG. 1 is a block diagram showing an i-safe infrared smart scale according to a first embodiment of the present invention, and FIG. 2 is a perspective view schematically showing the i-safe infrared smart scale of FIG. 1.

FIGS. 3 and 4 are schematic diagrams illustrating the volume measurement of an object to be measured in the i-safe infrared smart scale of FIG. 2, and FIG. 5 is a plan view showing a reference pattern used in the i-safe infrared smart scale of FIG. 2.

Figure 6 is a plan view showing the grid pattern used in the i-safe infrared smart scale of Figure 2, and Figures 7 and 8 are schematic diagrams explaining weight correction in the i-safe infrared smart scale of Figure 2.

9 to 12 are schematic diagrams illustrating the angle distortion correction of the image sensor unit in the i-safe infrared smart scale of FIG. 2, and FIGS. 13 and 14 are schematic diagrams showing the angle distortion correction between the object to be measured and the lidar in the i-safe infrared smart scale of FIG. 2. This is a schematic diagram explaining distance distortion correction.

Figures 15 to 18 are schematic diagrams illustrating the angle distortion correction of the image sensor unit through the upward movement of the scale plate in the i-safe infrared smart scale of Figure 2, and Figures 19 to 22 are schematic diagrams of the scale plate in the i-safe infrared smart scale of Figure 2. It is a schematic diagram explaining correction of distance or weight or angle or length distortion through up and down or horizontal movement.

In addition, FIGS. 23 to 25 are schematic diagrams illustrating correction of the length of an object to be measured through horizontal movement of the scale plate in the first modified example of the iSafe infrared smart scale of FIG. 2, and FIGS. 26 to 29 are schematic diagrams illustrating the iSafe infrared smart scale of FIG. 2. This is a schematic diagram explaining correction of the length of the measured object through the horizontal movement of the balance plate in the second modification of the infrared smart scale.

1 to 29, the i-safe infrared smart scale 90 according to the present invention includes an image sensor unit 30, an image processing unit 35, and a control/calculation unit 50. Schematically, the image sensor unit 30 detects infrared rays irradiated from a light source toward the object to be measured 100 on the object to be measured 100 of the scale plate 80 in FIGS. 1 to 4, and detects the light source. (20) The object to be measured 100 is photographed from the surrounding area and the optical image of the object to be measured 100 is converted into an image signal.

In FIGS. 1 to 4, the image processing unit 35 is located inside the balance plate 80, is electrically connected to the image sensor unit 30, and receives an image of the object to be measured 100 from the image sensor unit 30. Receives signals and processes image signals. The control/calculation unit 50 is located inside the scale plate 80 and is electrically connected to the image processing unit 35. It receives the image signal of the object to be measured 100 from the image processing unit 35 and generates the image signal. Based on this, the positional relationship between the image sensor unit 30 and the object to be measured 100 is obtained.

Here, the image sensor unit 30 photographs the object to be measured 100 by detecting infrared rays from the light source 20 in FIGS. 3 and 4 . The positional relationship between the image sensor unit 30 and the object to be measured 100 is determined by determining the angle formed between the center of the image sensor unit 30 and both corners of the object to be measured 100. More specifically, when the balance plate 80 is fixed to the light source 20 and the image sensor unit 30 through the connection portion 85 in FIG. 2, the light source 20 is Considering 2, it is electrically connected to the control/calculation unit 50 through the connection unit 85. The image sensor unit 30 is. Considering FIGS. 1 and 2, it is electrically connected to the image processing unit 35 through a connection part 85.

In Figure 2, the scale plate 80 is fixed to the light source 20 and the image sensor unit 30 through the connection part 85, and the object to be measured 100 is, considering Figures 2 to 4, Forming a rectangular parallelepiped, it has a, b, and c on the short side, long side, and height, respectively. In FIGS. 3 and 4, the image sensor unit 30 measures the object 100 on the rectangular upper surface of the object 100. When located at the center, the control/calculation unit 50, considering FIGS. 3 and 4, moves from the center of the image sensor 30 along the short and long sides on the rectangular upper surface of the object to be measured 100. The angles formed with both corners of the object 100 are measured as θa and θb, and half of the short side on the rectangular upper surface of the object 100 is d/tan(90-(θa/2)) and half of the long side is d/tan(90-(θa/2)). Measure with d/tan(90-(θb/2)), and the volume of the object to be measured (100) is {[d/tan(90-(θa/2))]*2}*{[d/tan( Measured as 90-(θb/2))]*2}*c.

Referring to FIGS. 5 and 6, the object to be measured 100 is formed of a rectangular parallelepiped in FIG. 2, and the scale plate 80 is connected to the light source 20 through the connection portion 85 in FIG. 2. When fixed to the sensor unit 30, the lens distortion of the image sensor unit 30 is caused by the measurement object 100 through the image sensor unit 30, the image processing unit 35, and the control/calculation unit 50. ) together with the first optical image or the first image data, a reference pattern 110 that is detached from the scale plate 80 and is made of a cube and has a square top surface, or is repetitively applied to the scale plate 80 on the face of the scale plate 80. A second optical image or second image of a grid pattern 130 having a plurality of square unit grids (not shown in the drawing) drawn in a net shape, or a plurality of square unit grids 120 detached from the balance plate 80. By comparing the data, the absolute value difference between the first optical image and the second optical image or the absolute value difference between the first image data and the second image data is displayed on at least one of the short side and the long side on the rectangular image surface of the object to be measured 100. It is corrected by adding or subtracting .

The reference pattern 110 or the plurality of square unit grids or grid patterns 130 have known sizes and are made of a material that absorbs infrared rays. It should be noted that the square unit grid is described in the simplest form used for correction, and any material that preferably absorbs infrared rays rather than reflecting infrared light source light can help in the detection of the image sensor unit 30. .

Referring to FIGS. 7 and 8, when the scale plate 80 is fixed to the light source 20 and the image sensor unit 30 through the connection part 85, the LIDAR is attached around the image sensor unit 30 ( 40), and further includes a distance information processing unit 45 located inside the scale plate 80 and electrically connected to the lidar 40 through a connection part 85. The distance information processing unit 45 is electrically connected to the control/calculation unit 50 inside the scale plate 80.

The LIDAR 40 receives infrared rays by reflecting infrared rays from the object 100 to be measured while radiating infrared rays onto the object 100 to be measured. The distance information processing unit 45 measures the time interval between when infrared rays are irradiated and when they are received. The control/calculation unit 50 measures the distance between the object to be measured 100 and the lidar 40 as d based on the time interval of the distance information processing unit 45 and the propagation speed of infrared rays.

The internal program of the control/calculation unit 50 stores the distance between the scale plate 80 and the lidar 40 as H, and stores the distance between the measured object 100 and the lidar 40 as d. When storing, the distance distortion between the object to be measured (100) and the lidar (40) is determined by the distance between the object to be measured (100) and the lidar (40) through the control/calculation unit (50). It is corrected by adding or subtracting the absolute value difference between the distance between (80) and LIDAR (40) and the distance between the object to be measured (100) and LIDAR (40).

Referring again to FIGS. 7 and 8, when the balance plate 80 is fixed to the light source 20 and the image sensor unit 30 through the connection portion 85 in FIG. 2, the inside of the balance plate 80 It further includes a weight sensor unit 10. The weight sensor unit 10 is electrically connected to the control/calculation unit 50 inside the scale plate 80.

The internal program of the control/calculation unit 50 stores the first weight in the absence of the object to be measured 100 on the scale plate 80, and the presence of the object to be measured 100 on the scale plate 80. When storing the second weight, the weight distortion of the object to be measured (100) is added to the second weight of the object to be measured (100). It is corrected by adding or subtracting the absolute value difference.

9 and 12, the scale plate 80 is fixed to the light source 20 and the image sensor unit 30 through the connection portion 85 in FIG. 2, and the reference pattern 110 is, When made of a cube, the eye-safe infrared smart scale 90 further includes an 'ㄱ'-shaped reference insertion wall 144 and an 'ㄴ'-shaped reference insertion wall 148 on the scale plate 60. The 'L' shaped reference fitting wall 144 is located diagonally with the 'L' shaped reference fitting wall 144 on the scale plate 80. In the reference pattern 110, individual corners of the two diagonally opposite corners of the reference pattern 110 are inserted into the 'ㄱ'-shaped reference fitting wall 144 or the 'ㄴ'-shaped reference fitting wall 148.

The 'ㄱ' shaped reference fitting wall 144 or the 'ㄴ' shaped reference fitting wall 148 has a known size and is made of a material that absorbs infrared rays. When the internal program of the control/calculation unit 50 inserts one of the two diagonally opposite corners of the reference pattern 110 into the 'ㄱ' shaped reference fitting wall 144, the image sensor unit 30 A first left angle formed with both corners of the reference pattern 110 at the center of the image sensor unit 30 by drawing a perpendicular line from the center to the square upper surface of the object to be measured 100, and a first right angle greater than the first left angle. The angles are stored as θl and θr, and when one of the two diagonally opposite corners of the reference pattern 110 is inserted into the 'ㄴ' shaped reference fitting wall 148, the reference pattern is drawn from the center of the image sensor unit 30. By drawing a perpendicular line on the square upper surface of (110), the second left angle and the second right angle smaller than the second left angle formed with both corners of the reference pattern 110 from the center of the image sensor unit 30 are expressed as θl and θr. Save.

The angle distortion of the image sensor unit 30 is calculated through the control/calculation unit 50 as the absolute value difference between the first left angle and the second left angle in the first left angle, and the first right angle and the second right angle in the first left angle. 2 It is corrected by adding or subtracting the absolute value difference of the right angle.

13 and 14, when the scale plate 80 moves up and down relative to the light source 20 and the image sensor unit 30 through the connection part 85, the eye-safe infrared smart scale 90 1 and 2, the LiDAR 40 is located around the image sensor unit 30, and is located inside the scale plate 80 and is electrically connected to the LiDAR 40 through the connection portion 85. It further includes an information processing unit 45. Here, the vertical movement of the scale plate 80 can be implemented through vertical movement means (for example, an elevator or lifting bolt, etc.).

In FIG. 1, the distance information processing unit 45 is electrically connected to the control/calculation unit 50 inside the scale plate 80. The LIDAR 40 radiates infrared rays (R in FIG. 2) onto the object to be measured 100 and receives infrared rays by reflecting the infrared rays from the object to be measured 100. The distance information processing unit 45 measures the time interval between when infrared rays are irradiated and when they are received. The control/calculation unit 50 measures the distance between the object to be measured 100 and the LIDAR 40 as d or d1 based on the time interval of the distance information processing unit 45 and the propagation speed of infrared rays. .

The internal program of the control/calculation unit 50 stores the distance between the scale plate 80 and the lidar 40 as H at the initial position of the scale plate 80, and the measurement subject is stored at the initial position of the scale plate 80. When the distance between the water 100 and the lidar 40 is stored as d, and the distance between the measured object 100 and the lidar 40 is stored as d1 when the scale plate 80 moves, the Distortion of the distance between the measured object 100 and the lidar 40 is the distance between the measured object 100 and the lidar 40 at the initial position of the balance plate 80, and the control / calculation unit 50 The distance between the scale plate 80 and the lidar 40 at the initial position of the scale plate 80. And, at the initial position of the scale plate 80 or when the scale plate 80 moves up and down, the difference in absolute value of the distance between the object to be measured 100 and the lidar 40 is corrected by adding or subtracting.

Referring again to FIGS. 13 and 14 , when the scale plate 80 moves up and down relative to the light source 20 and the image sensor unit 30 through the connection portion 80, the eye-safe infrared smart scale 90 ) further includes a weight sensor unit 10 inside the scale plate 80. The weight sensor unit 10 is electrically connected to the control/calculation unit 50 inside the scale plate 80.

The internal program of the control/calculation unit 50 stores the third weight in the absence of the object to be measured 100 on the scale plate 80, and the presence of the object to be measured 100 on the scale plate 80. When storing the fourth weight, the weight distortion of the object to be measured (100) is adjusted to the fourth weight of the object to be measured (100). It is corrected by adding or subtracting the absolute value difference.

15 to 18, the scale plate 80 moves up and down relative to the light source 20 and the image sensor unit 30 through the connection portion 85, and the reference pattern 110 is shaped like a cube. When made, the eye-safe infrared smart scale 90 further includes an 'ㄱ'-shaped reference insertion wall 144 and an 'ㄴ'-shaped reference insertion wall 148 on the scale plate 80. The 'ㄱ' shaped reference fitting wall 144 is located diagonally from the 'ㄴ' shaped reference fitting wall on the balance plate 80. As for the reference pattern 110, one of the two diagonally opposite corners of the reference pattern 130 is inserted into the 'ㄴ' shaped reference fitting wall 148.

When the internal program of the control/calculation unit 50 positions the image sensor unit 30 at the center of the reference pattern 110 on the square upper surface of the reference pattern 110, the image at the initial position of the balance plate 80 The central angle formed between the center of the sensor unit 30 and both corners of the reference pattern 110 is stored as θa, and when the balance plate 80 moves upward, the angle formed between the center of the image sensor unit 30 and both corners of the reference pattern 110 is stored as θa. The first central angle formed by and is stored as θ1, and the second central angle formed between the center of the image sensor unit 30 and both corners of the reference pattern 110 when the balance plate 80 moves downward is stored as θ2. The angular distortion of the image sensor unit 30 is corrected by adding or subtracting the absolute value difference between the first central angle and the second central angle to the central angle through the control/calculation unit 90.

19 to 22, the scale plate 80 moves up and down relative to the light source 20 and the image sensor unit 30 below the light source 20 and the image sensor unit 30, or moves the light source 20 below. ) and moves relatively horizontally with respect to the image sensor unit 30, has a plurality of weight sensor units 10 inside the balance plate 80, and each weight sensor unit 10 on the balance plate 80 has a weight sensor unit ( 10), the object to be measured (100) is placed on the object to be measured (100), and when the object to be measured (100) is made of a rectangular parallelepiped, the light source (20) and the image sensor unit (30) are positioned in a predetermined area of the scale plate (80). and repeatedly encounters the object to be measured (100).

The eye-safe infrared smart scale 90 includes a LiDAR 40 located around the image sensor unit 30, and a distance information processing unit 45 electrically connected to the LiDAR 40 inside the scale plate 80. ) further includes. The image sensor unit 30 is electrically connected to the image processing unit 35 and is located at the center of the object to be measured 100 on the rectangular upper surface of the object to be measured 100. The distance information processing unit 45 is electrically connected to the control/calculation unit 50.

The control/calculation unit 50, when the scale plate 80 moves up and down relative to the image sensor unit 30, measures the object to be measured together with the scale plate 80, the lidar 40, and the distance information processing unit 45. Distortion of the distance between the measured object 100 and the lidar 40 is corrected through the presence or absence of the measured object 100, and the weight sensor unit 10 is measured through the presence or absence of the measured object 100 together with the weight sensor unit 10. ) is corrected for weight distortion, and the angular distortion formed between the center of the image sensor unit 30 and both corners of the object to be measured 100 is corrected.

The eye-safe infrared smart scale 90 includes a LiDAR 40 located around the image sensor unit 30, and a distance information processing unit 45 electrically connected to the LiDAR 40 inside the scale plate 80. ) further includes. The image sensor unit 30 is electrically connected to the image processing unit 35 and is located at the center of the object to be measured 100 on the rectangular upper surface of the object to be measured 100. The distance information processing unit 45 is electrically connected to the control/calculation unit 50.

When the scale plate 80 moves relatively horizontally with respect to the image sensor unit 30, the control/calculation unit 50 controls the scale plate 80 and the object to be measured through the lidar 40 and the distance information processing unit 45. Measure the short side or long side of the object to be measured (100) through the bend of (80) (refer to the waveform in FIG. 21 or FIG. 22), and measure the object to be measured (100) through the image sensor unit 30 and the image processing unit 35. Secure the optical image or image data of the object to be measured (100), and compare the short side or long side of the object to be measured (100) with the optical image or image data of the object to be measured (100) to correct the short side or long side of the object to be measured (100). do.

23 to 25, the balance plate 80 moves relatively horizontally with respect to the light source 20 and the image sensor unit 30 below the light source 20 and the image sensor unit 30, and the balance plate ( 80 has a plurality of weight sensor units 10 inside, and an object to be measured 100 is placed on the weight sensor unit 10 for each weight sensor unit 10 on a balance plate 80, and the object to be measured is ( When 100 is made of a rectangular parallelepiped, the light source 20 and the image sensor unit 30 are located in a predetermined area of the balance plate 80 and repeatedly face the object to be measured 100.

The eye-safe infrared smart scale 90 includes a LiDAR 30 located in the central area of the object to be measured 100, and a distance information processing unit electrically connected to the LiDAR 40 inside the scale plate 80. (45) is further included. The image sensor unit 30 is located along the short side of the object to be measured 100 on both sides of the lidar 40 when the scale plate 80 moves horizontally, and is electrically connected to the image processing unit 45. The distance information processing unit 45 is electrically connected to the control/calculation unit 50.

When the scale plate 80 moves relatively horizontally with respect to the image sensor unit 30, the control/calculation unit 50 controls the scale plate 80 and the object to be measured through the lidar 40 and the distance information processing unit 45. Measure the short side or long side of the object to be measured (100) through the bend of (100), secure an optical image or image data of the object to be measured (100) through the image sensor unit 30 and the image processing unit 35, , the long side of the object to be measured 100 is compared to the optical image or image data of the object to be measured 100 to correct the long side of the object to be measured 100.

Referring to FIGS. 26 to 29, the balance plate 80 moves relatively horizontally with respect to the light source 20 and the image sensor unit 30 below the light source 20 and the image sensor unit 30, and the balance plate ( 80 has a plurality of weight sensor units 10 inside, and an object to be measured 100 is placed on the weight sensor unit 10 for each weight sensor unit 10 on a balance plate 80, and the object to be measured is ( When 100 is made of a rectangular parallelepiped, the light source 200 and the image sensor unit 30 are located in a predetermined area of the scale plate 80 and repeatedly face the object to be measured 100.

The eye-safe infrared smart scale 90 includes a LiDAR 40 located in the central area of the object to be measured 100, and a distance information processing unit electrically connected to the LiDAR 40 inside the scale plate 80. (45) is further included. The image sensor unit 30 is located along the long side of the object to be measured 100 longer than the long side, and is electrically connected to the image processing unit 35. The distance information processing unit 45 is electrically connected to the control/calculation unit 50.

When the scale plate 80 moves relatively horizontally with respect to the image sensor unit 30, the control/calculation unit 50 controls the scale plate 80 and the object to be measured through the lidar 40 and the distance information processing unit 45. The length of the short side or long side of the object to be measured 100 is measured through the bending of 100 (refer to the step waveform P1 in FIG. 28 or the step waveform P2 in FIG. 29), and the image sensor unit 30 and the image processing unit Obtain the optical image or image data of the object to be measured (100) through (35), and compare the long side of the object to be measured (100) with the optical image or image data of the object to be measured (100). ) to correct the long side.

Referring again to FIG. 1, the eye-safe infrared smart scale 90 is connected to the LiDAR 40 located in the central area of the object to be measured 100, and to the LiDAR 40 inside the scale plate 80. A distance information processing unit 45 that is electrically connected, a weight sensor unit located inside the scale plate 80 and electrically connected to the control/calculation unit 50, and a control/calculation unit ( It further includes a display 60 and a communication unit 70 that are electrically connected to 50).

The LIDAR 40 receives infrared rays by reflecting infrared rays from the object 100 to be measured while radiating infrared rays onto the object 100 to be measured. The distance information processing unit 45 measures the time interval between the time when infrared rays are irradiated from the LiDAR 40 and the time when the infrared rays are transmitted to the LiDAR 40. The control/calculation unit 50 measures the distance between the object to be measured 100 and the LIDAR 40 based on the time interval of the distance information processing unit 45 and the propagation speed of infrared rays.

The display 60 displays the control status of the weight sensor unit 10, the image processing unit 35, or the distance information processing unit 45 of the control/calculation unit 50, or receives data from the control/calculation unit 50. Receives the output value and displays the data output value. The communication unit 70 wirelessly transmits the control status and data output value of the control/calculation unit 50 to a remote location, or wirelessly receives data input from a remote location and transmits the data input value to the control/calculation unit 50. This makes remote monitoring possible.

Meanwhile, in the eye-safe infrared smart scale 90 according to the first embodiment of the present invention, since the light source 20 and the image sensor unit 30 use infrared rays and are adjacent to each other, the light of the light source 10 In order to avoid direct radiation to the image sensor unit 30, the light source 20 and the image sensor unit 30 are positioned between the light source 20 and the image sensor unit 30, or the light source 20 or the image sensor unit 30 is positioned between the light source 20 and the image sensor unit 30. A light blocking film (not shown in the drawing) located on the sensor unit 30 may be required.

In addition, the visible light wavelength that the human eye can detect is known to be up to 0.95um, and the optical power level that is safe for the eyes is 10 uJ @0.7um. On the other hand, at a visible light wavelength of 1um, it increases tenfold and can withstand an optical power of about 0.1mJ, and at a visible light wavelength of 1.5um, it can withstand an optical power of more than 1J. Therefore, the target wavelength in the eye-safe infrared scale 90 can be an infrared wavelength of 0.95 um or more.

Semiconductor materials that are capable of sensing at these infrared wavelengths and can be used for high-speed sensing include group III, IV, V, and VI materials or their composites, and representative examples include GaAs, Si, and InGaAs, of which InGaAs-based image sensors ( (corresponding to the image sensor of the present invention) is capable of irradiating the highest power, but has the disadvantage of being expensive. GaAs-based image sensors are also relatively expensive and can be used at a wavelength of 0.98um, which is close to visible light.

Si-based image sensors can absorb up to a wavelength of 1.12 um and are the cheapest. In particular, CMOS image sensors are most suitable as the infrared sensor material of the present invention. For all sensors, installing an appropriate visible light filter in front of the device is advantageous for sensing sensitivity. Additionally, it may be necessary to install a bandpass filter to selectively detect only specific infrared wavelengths.

In order to function as an infrared light source, the light source 20 can increase its volume and efficiency by adding a filter to a general incandescent or halogen lamp, or by providing a semiconductor GaAs or InGaAs-based LED or laser. In most cases, the compound semiconductor of the light source 20 and the image sensor unit 30 is mass-produced using a highly economical chemical vapor deposition (CVD) method.

In the crystal growth of the semiconductor material required for the light source 20 and the image sensor unit 30, the method of implementing the nanoscale thin film structure of registered patent No. 10-2380306 (2022.03.05.) when grown by the CVD method Like the thin film layer disclosed in , the light emitting member, the sensing member, and the filter member (hereinafter referred to as members) may be formed with quantized thickness.

As disclosed in registered patent No. 10-2361871 (2022.02.08.), the member is prepared using at least one process of physical vapor deposition (PVD) and chemical vapor deposition (CVD). It is grown on a substrate, and at this time, the member can be formed to be an integer multiple of the minimum unit thickness in the growth direction.

Here, the minimum unit thickness can be set according to the number and crystal structure of the elements constituting the material layer. For example, when the member is composed of a single element, the minimum unit thickness may be set to correspond to the distance between the reference growth surface and the nearest atom to the reference growth surface in the growth direction.

The reference growth plane may correspond to a plane formed perpendicular to the growth direction by atoms corresponding to the origin position of the growth direction. This method has the advantage of increasing the efficiency of the light source 20 that irradiates infrared rays and the sensitivity of the sensor, and increasing the ultraviolet ray and visible light removal efficiency of the filter.

The image sensor unit 30 using infrared rays has the advantage of being able to acquire an image at once and convert it to a plane to obtain the area, but it has the disadvantage that its accuracy drops sharply when the shape becomes complicated. Therefore, the configuration for measuring the exact area and height of various shapes is equipped with a one-dimensional array of the LIDAR 40 and at least one horizontal movement means (for example, a conveyor belt) of the object to be measured 100. can do.

Alternatively, even in the case of a flowing fluid, measurement is possible if the refractive index is sufficiently large, and it can be used to measure flowing beverages in the beverage manufacturing process. In this configuration, since the horizontal movement speed is constant and known, the volume of the measurement object can be accurately measured using the height information of the one-dimensional array LIDAR (40; see Figure 31) and the time and velocity product. In this case, the measurement object can be measured safely if a light shielding film is provided to block external light.

Figure 30 is a block diagram showing the i-safe infrared smart scale according to the second embodiment of the present invention, and Figures 31 to 34 are schematic diagrams explaining the function of LiDAR in the i-safe infrared smart scale of Figure 30.

Referring to FIGS. 30 to 34, the i-safe infrared smart scale 90 according to the present invention includes a LIDAR 40, a distance information processing unit 45, and a control/calculation unit 50. The LIDAR 40 irradiates infrared rays on the scale plate 80 or the measured object 100 from the scale plate 80 or the measured object 100. It reflects infrared rays and receives infrared rays. The distance information processing unit 45 is located inside the scale plate 80 and measures the time interval between the time when infrared rays are irradiated from the LiDAR 40 and the time when the infrared rays are transmitted to the LiDAR 40.

The control/calculation unit 50 is located inside the scale plate 80, is electrically connected to the distance information processing unit 45, and receives the time interval from the distance information processing unit 45. Based on the propagation speed of infrared rays, the scale plate ( Obtain the distance between 80) and LIDAR 40 or the distance between the measured object 100 and LIDAR 40. The LIDAR 40 is located along the long side of the object to be measured 100 and is longer than the long side.

The control/calculation unit 50 controls the scale plate 80 and the measured object ( 100) (refer to the step waveform P3 in FIG. 32 or the step waveform P4 in FIG. 33 or the horizontal line in FIG. 34) to measure the lengths of the short and long sides of the object to be measured (100). The eye-safe infrared smart scale 90 is located inside the scale plate 80 and electrically connected to the control/calculation unit 50 when the scale plate 80 moves relative to the lidar 40. It further includes a display 60 and a communication unit 70 that are electrically connected to the sensor unit 10 and the control/calculation unit 50 inside the scale plate 80.

The display 60 displays the control status of the weight sensor unit 10, the image processing unit 45, or the distance information processing unit 45 of the control/calculation unit 50, or receives data from the control/calculation unit 50. Receives the output value and displays the data output value. The communication unit 70 wirelessly transmits the control status and data output value of the control/calculation unit 50 to a remote location, or wirelessly receives data input from a remote location and transmits the data input value to the control/calculation unit 50. This makes remote monitoring possible.

10; Weight sensor unit, 20; light source
30; Image sensor unit, 35; image processing unit
40; Rida, 45; Distance information processing unit
50; control/calculation unit, 60; display
70; Ministry of Communications, 80; scale board
90; iSafe Infrared Smart Scale

Claims (54)

balance board;
Image sensor unit;
LIDAR;
A distance information processing unit electrically connected to the lidar; and
It includes a control/calculation unit electrically connected to the distance information processing unit,
The image sensor unit,
detect infrared rays,
The control/calculation unit,
When the LIDAR irradiates infrared rays to the object to be measured located on the scale plate,
Based on the curvature of the object to be measured together with the scale plate, the distance between the scale plate and the lidar and the distance between the object to be measured and the lidar are obtained through the time interval of the distance information processor and the propagation speed of the infrared rays, Eye-Safe Infrared Smart Scale.
In paragraph 1
An eye-safe infrared smart scale further comprising a light source that irradiates infrared rays in the direction in which the image sensor unit is looking.
According to claim 1,
Further comprising a light source around the image sensor unit on the scale plate,
When the image sensor unit detects infrared rays irradiated from the light source toward the object to be measured on the object to be measured,
To avoid direct radiation of infrared rays from the light source to the image sensor unit,
An eye-safe infrared smart scale comprising a light shielding film between the image sensor unit and the light source.
According to clause 2,
An eye-safe infrared smart scale where the sensing and emission target wavelength of the image sensor unit and the light source is 0.95 um or more.
According to clause 2,
An eye-safe infrared smart scale including an infrared pass filter in the image sensor unit.
In paragraph 2:
The image sensor unit and the light source are made of a semiconductor material and include any one of Group II, Group III, Group IV, Group V, Group VI, and Group VII elements and compounds thereof.
According to paragraph 1,
The image sensor unit
Eye-safe infrared smart scale with Si-based CMOS image sensor.
According to clause 5,
The formation of the semiconductor material layer of the infrared pass filter and the light source is performed by a CVD method to form the semiconductor material layer to a quantized thickness when grown.
According to clause 1,
An eye-safe infrared smart scale comprising a plurality of square unit grids of known sizes on the scale plate, or a reference pattern or grid pattern of known sizes on the scale plate.
According to clause 9,
An eye-safe infrared smart scale, wherein the plurality of square unit grids or reference patterns or grid patterns are formed of a material that absorbs infrared rays.
According to claim 1,
An eye-safe infrared smart scale including a weight sensor unit on the scale plate.
The method of claim 1 or 9 or 11,
An eye-safe infrared smart scale comprising a reference insertion wall on the scale plate.
In paragraph 1 or 2,
Eye-safe infrared smart scale with image processing unit.
In paragraph 2:
An eye-safe infrared smart scale including horizontal movement means for more precise correction of the object to be measured.
According to clause 2,
When the balance plate further includes a weight sensor,
An eye comprising a vertical movement means for correcting the distance distortion between the object to be measured and the lidar, the weight distortion of the weight sensor, and the angular distortion formed between the center of the image sensor and both corners of the object to be measured, Safe infrared smart scale.
delete LIDAR consisting of a one-dimensional array;
A distance information processing unit electrically connected to the lidar; and
It includes a control/calculation unit electrically connected to the distance information processing unit,
The control/calculation unit,
When the lidar irradiates infrared rays to the object to be measured located on the scale plate,
Based on the curvature of the scale plate and the object to be measured, the distance between the scale plate and the LiDAR or the distance between the object to be measured and the Lidar is calculated through the time interval of the distance information processor and the propagation speed of the infrared rays. scale.
According to claim 17,
An eye-safe infrared smart scale comprising a lidar configured in a one-dimensional array and a means of horizontal movement.
In paragraph 17 or 18:
Eye-safe infrared smart scale with weight sensor.
delete In paragraph 17 or 18:
iSafe infrared smart scale with communication unit and display.
In paragraph 17 or 18:
Eye-safe infrared smart scale with a light shield to block external light.
An image sensor unit that photographs the object to be measured and converts an optical image of the object into an image signal when infrared rays are irradiated from a light source toward the object to be measured on the scale plate;
a LiDAR on the object to be measured, and a distance information processing unit located inside the scale plate and electrically connected to the LiDAR;
an image processing unit located inside the scale plate, electrically connected to the image sensor unit, and receiving the image signal of the object to be measured from the image sensor unit and processing the image signal; and
A control/calculation unit located inside the scale plate and electrically connected to the image processing unit and the distance information processing unit,
The image sensor unit,
Detect the infrared rays of the light source and photograph the object to be measured,
The positional relationship between the image sensor unit and the object to be measured is,
Obtain the angle formed between the center of the image sensor unit and both edges of the object to be measured,
The control/calculation unit,
Receive the image signal of the object to be measured from the image processing unit and obtain the positional relationship between the image sensor unit and the object to be measured based on the image signal, or
Based on the curvature of the scale plate and the object to be measured, the distance between the scale plate and the lidar and the distance between the object to be measured and the lidar are obtained through the time interval of the distance information processor and the propagation speed of the infrared rays, Eye-Safe Infrared Smart Scale.
According to clause 23,
The scale plate,
When the light source and the image sensor unit are fixed through a connection portion,
The light source is,
electrically connected to the control/calculation unit through the connection unit,
The image sensor unit,
An eye-safe infrared smart scale that is electrically connected to the image processing unit through the connection unit.
According to clause 23,
The scale plate,
It is fixed to the light source and the image sensor unit through a connection part,
The object to be measured is,
It forms a rectangular parallelepiped and has a, b, and c on the short side, long side, and height, respectively.
The image sensor unit,
When the object to be measured is located at the center of the rectangular upper surface of the object to be measured,
The control/calculation unit,
Measure the angles formed between the center of the image sensor unit and both corners of the object to be measured as θa and θb along the short and long sides of the rectangular upper surface of the object to be measured,
On the rectangular upper surface of the object to be measured, half of the short side is measured as d/tan(90-(θa/2)) and half of the long side is measured as d/tan(90-(θb/2)),
Measuring the volume of the object to be measured as {[d/tan(90-(θa/2))]*2}*{[d/tan(90-(θb/2))]*2}*c, Safe infrared smart scale.
According to clause 23,
The object to be measured is,
It is made up of a rectangular parallelepiped,
The scale plate,
When the light source and the image sensor unit are fixed through a connection portion,
The lens distortion of the image sensor unit is,
Through the image sensor unit, the image processing unit, and the control/calculation unit,
Together with the first optical image or first image data of the object to be measured,
A reference pattern formed of a cube and having a square upper surface while detached from the scale plate, or a plurality of square unit grids repeatedly drawn in a net shape on the face of the scale plate, or a plurality of square unit grids detached from the scale plate. By comparing the second optical image or second image data of the grid pattern having,
Eye-safe, which is corrected by adding or subtracting the absolute value difference between the first optical image and the second optical image or the absolute value difference between the first image data and the second image data on at least one of the short side and the long side on the rectangular image surface of the object to be measured. Infrared smart scale.
According to clause 23,
The scale plate,
When fixed to the light source and the image sensor unit through a connection portion,
It further includes a LiDAR around the image sensor unit, and a distance information processing unit located inside the scale plate and electrically connected to the LiDAR through the connection unit,
The distance information processing unit,
An eye-safe infrared smart scale that is electrically connected to the control/calculation unit inside the scale plate.
According to clause 27,
The lidar,
While radiating the infrared rays onto the object to be measured, the infrared rays are reflected from the object to be measured to receive the infrared rays,
The distance information processing unit,
Measure the time interval between the time the infrared rays were irradiated and the time they were received,
The control/calculation unit,
An eye-safe infrared smart scale that measures the distance between the measured object and the lidar as d based on the time interval of the distance information processing unit and the propagation speed of the infrared rays.
According to clause 27,
The internal program of the control/calculation unit is,
The distance between the scale plate and the lidar is stored as H,
When storing the distance between the measured object and the lidar as d,
The distance distortion between the measured object and the lidar is,
The distance between the object to be measured and the lidar is corrected by adding or subtracting the absolute value difference between the distance between the scale plate and the lidar and the distance between the object to be measured and the lidar through the control / calculation unit, Eye-Safe Infrared Smart Scale.
According to clause 23,
The scale plate,
When fixed to the light source and the image sensor unit through a connection portion,
Further comprising a weight sensor unit inside the scale plate,
The weight sensor unit,
An eye-safe infrared smart scale that is electrically connected to the control/calculation unit inside the scale plate.
According to claim 30,
The internal program of the control/calculation unit is,
Store the first weight when the object to be measured does not exist on the scale plate,
When storing the second weight when the object to be measured is present on the scale plate,
The weight distortion of the object to be measured is,
An eye-safe infrared smart scale that is corrected by adding or subtracting the absolute value difference between the first weight and the second weight through the control/calculation unit to the second weight of the object to be measured.
According to clause 23,
The scale plate,
It is fixed to the light source and the image sensor unit through a connection part,
The standard pattern is,
When it is made of a cube,
It further includes an 'ㄱ' shaped reference fitting wall and an 'ㄴ' shaped reference fitting wall on the balance plate,
The 'ㄱ' shaped standard fitting wall is,
It is located diagonally from the 'ㄴ' shaped reference fitting wall on the scale plate,
The reference pattern is,
An i-safe infrared smart scale in which individual corners of the two diagonally opposite corners of the reference pattern are inserted into an 'ㄱ'-shaped standard insertion wall or an 'ㄴ'-shaped reference insertion wall.
According to clause 32,
The internal program of the control/calculation unit is,
When inserting one of the two diagonally opposite corners in the reference pattern into the 'ㄱ' shaped reference fitting wall,
A perpendicular line is drawn from the center of the image sensor unit to the square upper surface of the reference pattern to form a first left angle formed between the center of the image sensor unit and both corners of the reference pattern and a first right angle greater than the first left angle. Save as θl and θr,
When inserting one of the two diagonally opposite corners in the reference pattern into the 'ㄴ' shaped reference fitting wall,
A second left angle formed between the center of the image sensor unit and both corners of the reference pattern by drawing a perpendicular line from the center of the image sensor unit to the square upper surface of the reference pattern, and a second right angle smaller than the second left angle. Store the angles as θl and θr,
The angular distortion of the image sensor unit is,
Correction is made by adding and subtracting the absolute value difference between the first left angle and the second left angle to the first left angle, and the absolute value difference between the first right angle and the second right angle to the first right angle through the control/calculation unit. An eye-safe infrared smart scale.
According to clause 23,
The scale plate,
When moving up and down relative to the light source and the image sensor unit through the connection part,
The lidar,
Located around the image sensor unit,
The distance information processing unit,
An eye-safe infrared smart scale that is electrically connected to the lidar through the connection portion.
According to clause 34,
The lidar,
While radiating the infrared rays onto the object to be measured, the infrared rays are reflected from the object to be measured to receive the infrared rays,
The distance information processing unit,
Measure the time interval between the time the infrared rays were irradiated and the time they were received,
The control/calculation unit,
An eye-safe infrared smart scale that measures the distance between the measured object and the lidar as d or d1 based on the time interval of the distance information processor and the propagation speed of the infrared rays.
According to clause 34,
The internal program of the control/calculation unit is,
At the initial position of the scale plate, the distance between the scale plate and the lidar is stored as H,
At the initial position of the scale plate, the distance between the measured object and the lidar is stored as d,
When the distance between the measured object and the lidar is stored as d1 when the scale plate moves,
The distance distortion between the measured object and the lidar is,
The distance between the measured object and the lidar at the initial position of the scale plate, and the distance between the scale plate and the lidar at the initial position of the scale plate through the control/calculation unit. And an eye-safe infrared smart scale that is corrected by adding or subtracting the absolute difference in distance between the measured object and the lidar at the initial position of the scale plate or when the scale plate moves up and down.
According to clause 23,
The scale plate,
When moving up and down relative to the light source and the image sensor unit through the connection part,
Further comprising a weight sensor unit inside the scale plate,
The weight sensor unit,
An eye-safe infrared smart scale that is electrically connected to the control/calculation unit inside the scale plate.
According to clause 37,
The internal program of the control/calculation unit is,
Storing a third weight when the object to be measured does not exist on the scale plate,
When storing the fourth weight when the object to be measured is present on the balance plate,
The weight distortion of the object to be measured is,
An eye-safe infrared smart scale that is corrected by adding or subtracting the absolute value difference between the third weight and the fourth weight through the control/calculation unit to the fourth weight of the object to be measured.
According to clause 23,
The scale plate,
Moving up and down relative to the light source and the image sensor unit through the connection part,
The standard pattern is,
When it is made of a cube,
It further includes an 'ㄱ' shaped reference fitting wall and an 'ㄴ' shaped reference fitting wall on the balance plate,
The standard fitting wall of the ‘ㄱ’ shape is
It is located diagonally from the 'ㄴ' shaped reference fitting wall on the scale plate,
The reference pattern is,
An eye-safe infrared smart scale in which one of the two diagonally opposite corners of the reference pattern is inserted into the 'ㄴ'-shaped reference wall.
According to clause 39,
The internal program of the control/calculation unit is,
When positioning the image sensor unit at the center of the reference pattern on the square upper surface of the reference pattern,
At the initial position of the scale plate, the central angle formed between the center of the image sensor unit and both corners of the reference pattern is stored as θa,
When the scale plate moves upward, a first central angle formed between the center of the image sensor unit and both corners of the reference pattern is stored as θ1,
When the balance plate moves downward, a second central angle formed between the center of the image sensor unit and both corners of the reference pattern is stored as θ2,
The angular distortion of the image sensor unit is,
An i-safe infrared smart scale that is corrected by adding or subtracting the absolute value difference between the first central angle and the second central angle through the control/calculation unit to the central angle.
According to clause 23,
The scale plate,
moving up and down below the light source and the image sensor unit relative to the light source and the image sensor unit or moving relatively horizontally with respect to the light source and the image sensor unit,
Having a plurality of weight sensor units inside the scale plate,
The object to be measured is placed on the weight sensor unit for each weight sensor unit on the scale plate,
The object to be measured is,
When it is made of a rectangular parallelepiped,
The light source and the image sensor unit,
An eye-safe infrared smart scale that is located in a predetermined area of the scale plate and repeatedly faces the object to be measured.
According to claim 41,
The lidar,
Located around the image sensor unit,
The image sensor unit,
Electrically connected to the image processing unit,
Located at the center of the object to be measured on the rectangular upper surface of the object to be measured,
The control/calculation unit,
When the scale plate moves up and down relative to the image sensor unit,
Correcting distance distortion between the object to be measured and the lidar through the presence or absence of the object to be measured together with the scale plate, the lidar, and the distance information processing unit,
Correcting the weight distortion of the weight sensor unit through the presence or absence of the object to be measured together with the weight sensor unit,
An eye-safe infrared smart scale that corrects angular distortion formed between the center of the image sensor unit and both corners of the object to be measured.
According to claim 41,
The lidar,
Located around the image sensor unit,
The image sensor unit,
Electrically connected to the image processing unit,
Located at the center of the object to be measured on the rectangular upper surface of the object to be measured,
The control/calculation unit,
When the scale plate moves horizontally relative to the image sensor unit,
Measure the short side or long side of the object to be measured through the curve of the scale plate and the object to be measured through the lidar and the distance information processor,
Securing an optical image or image data of the object to be measured through the image sensor unit and the image processing unit,
An eye-safe infrared smart scale that compares the short side or long side of the object to be measured with the optical image or image data of the object to be measured and corrects the short side or long side of the object to be measured.
According to clause 23,
The scale plate,
Moves below the light source and the image sensor unit relatively horizontally with respect to the light source and the image sensor unit,
Having a plurality of weight sensor units inside the scale plate,
The object to be measured is placed on the weight sensor unit for each weight sensor unit on the scale plate,
The object to be measured is,
When it is made of a rectangular parallelepiped,
The image sensor unit,
Located along the short side of the object to be measured,
The light source and the image sensor unit,
An eye-safe infrared smart scale that is located in a predetermined area of the scale plate and repeatedly faces the object to be measured.
According to claim 44,
The lidar,
Located in the central area of the object to be measured,
The image sensor unit,
When the scale plate moves horizontally, it is located along the short side of the object to be measured on both sides of the lidar,
Electrically connected to the image processing unit,
The control/calculation unit,
When the scale plate moves horizontally relative to the image sensor unit,
Measure the short side or long side of the object to be measured through the curve of the scale plate and the object to be measured through the lidar and the distance information processor,
Securing an optical image or image data of the object to be measured through the image sensor unit and the image processing unit,
An eye-safe infrared smart scale that corrects the long side of the object to be measured by comparing the long side of the object to the optical image or image data of the object to be measured.
According to claim 23,
The scale plate,
Moves below the light source and the image sensor unit relatively horizontally with respect to the light source and the image sensor unit,
Having a plurality of weight sensor units inside the scale plate,
The object to be measured is placed on the weight sensor unit for each weight sensor unit on the scale plate,
The object to be measured is,
When it is made of a rectangular parallelepiped,
The image sensor unit,
Located along the long side of the object to be measured,
The light source and the image sensor unit,
An eye-safe infrared smart scale that is located in a predetermined area of the scale plate and repeatedly faces the object to be measured.
According to clause 46,
The lidar,
Located in the central area of the object to be measured,
The image sensor unit,
Located along the long side of the object to be measured and longer than the long side,
Electrically connected to the image processing unit,
The control/calculation unit,
When the scale plate moves horizontally relative to the image sensor unit,
Measure the length of the short side or long side of the object to be measured through the curve of the scale plate and the object to be measured through the lidar and the distance information processor,
Securing an optical image or image data of the object to be measured through the image sensor unit and the image processing unit,
An eye-safe infrared smart scale that corrects the long side of the object to be measured by comparing the long side of the object to the optical image or image data of the object to be measured.
According to clause 23,
a weight sensor unit located inside the scale plate and electrically connected to the control/calculation unit; and
Further comprising a display and a communication unit electrically connected to the control/calculation unit inside the scale plate,
The lidar,
An eye-safe infrared smart scale located in the central area of the object to be measured.
According to clause 48,
The lidar,
While radiating the infrared rays onto the object to be measured, the infrared rays are reflected from the object to be measured to receive the infrared rays,
The distance information processing unit,
Measure the time interval between the time when the infrared rays are irradiated from the LiDAR and the time when the infrared rays are transmitted to the Lidar,
The control/calculation unit,
An i-safe infrared smart scale that measures the distance between the measured object and the lidar based on the time interval of the distance information processor and the propagation speed of the infrared rays.
According to clause 49,
The display is,
Displaying the control status of the weight sensor unit, image processing unit, or distance information processing unit of the control/calculation unit, or receiving a data output value from the control/calculation unit and displaying the data output value,
The Department of Communications,
Enables remote monitoring by wirelessly transmitting the control status and data output value of the control/calculation unit to a remote location, or receiving data input values wirelessly from the remote location and transmitting the data input value to the control/calculation unit, Eye-Safe Infrared Smart Scale.
A LIDAR that receives infrared rays by reflecting the infrared rays from the scale plate or the measured object while radiating infrared rays on the scale plate or the measured object;
a distance information processing unit located inside the scale plate and measuring the time interval between the point in time when the infrared ray is irradiated from the lidar and the point in time when the infrared ray is transmitted to the lidar; and
It is located inside the scale plate and is electrically connected to the distance information processing unit, and receives the time interval from the distance information processing unit based on the curvature of the scale plate and the object to be measured, and connects the scale plate and the Comprising a control/calculation unit that calculates the distance between lidars or the distance between the measured object and the lidar,
The lidar,
An eye-safe infrared smart scale positioned along the long side of the object to be measured and longer than the long side.
According to claim 51,
The control/calculation unit,
When the relative horizontal movement of the balance plate with respect to the lidar,
An eye-safe infrared smart scale that measures the length of the short side and long side of the measured object through the curve of the scale plate and the measured object through the lidar and the distance information processing unit.
According to claim 51,
When the relative horizontal movement of the balance plate with respect to the lidar,
a weight sensor unit located inside the scale plate and electrically connected to the control/calculation unit; and
An eye-safe infrared smart scale further comprising a display and a communication unit electrically connected to the control/calculation unit inside the scale plate.
According to clause 53,
The display is,
Displaying the control status of the weight sensor unit, image processing unit, or distance information processing unit of the control/calculation unit, or receiving a data output value from the control/calculation unit and displaying the data output value,
The Department of Communications,
Enables remote monitoring by wirelessly transmitting the control status and data output value of the control/calculation unit to a remote location, or receiving data input values wirelessly from the remote location and transmitting the data input value to the control/calculation unit, Eye-Safe Infrared Smart Scale.