TWI494538B - System and method for measuring an object - Google Patents

System and method for measuring an object Download PDF

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Publication number
TWI494538B
TWI494538B TW103121956A TW103121956A TWI494538B TW I494538 B TWI494538 B TW I494538B TW 103121956 A TW103121956 A TW 103121956A TW 103121956 A TW103121956 A TW 103121956A TW I494538 B TWI494538 B TW I494538B
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TW
Taiwan
Prior art keywords
object
sensing device
device
image
measuring system
Prior art date
Application number
TW103121956A
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Chinese (zh)
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TW201600829A (en
Inventor
Hui Chuan Chen
Chen Jyh Fan
Ching Tsung Cheng
Chao Hui Tu
Yung Ping Tien
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Ind Tech Res Inst
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Priority to TW103121956A priority Critical patent/TWI494538B/en
Application granted granted Critical
Publication of TWI494538B publication Critical patent/TWI494538B/en
Publication of TW201600829A publication Critical patent/TW201600829A/en

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Description

Object measurement system and method

The present invention relates to an object measurement system and method.

At present, when the logistics operator performs the freight calculation, the receiver usually uses a measuring ruler to measure the length, width and height of an item, and then calculates the volume size of the item by the length, width and height of the item, thereby determining the shipping cost of the item. Because the manual processing of the goods to calculate the freight, may be due to the loss of labor during the operation, resulting in a short shipping charge, which in turn causes the operator to suffer losses; and the manual method is more error-prone and slow processing. Therefore, for the logistics industry, it is imperative to improve the existing operating system.

A linear metrology technique has been proposed which uses two sets of distance sensors to measure the width of an object and uses the movement of the image lens to measure the volume of the object.

Another technique is a physical camera with an actual size estimation function of an object, which is used to observe an image of an object to be tested. The actual size estimation method of the object is as follows: performing an object distance estimation program for obtaining one of the physical cameras a distance from the lens to the object to be tested; estimating a size of a recordable image area according to the object angle and a viewing angle of the lens; using the lens and an image sensor to capture the object to be tested Generating a digital image; counting the number of effective pixels corresponding to one of the plurality of marking points in the digital image; and determining the number of pixels of the image sensor, the number of pixels of the image sensor, and the size of the image of the recordable image area The actual size data corresponding to one of the marked points is estimated.

The above two technologies require the movement of image lenses or complex digital image processing, which is not suitable for the logistics industry to quickly calculate the length, width, height and volume of objects.

The object measuring system of the present invention can quickly calculate the area and volume of the object within the error range acceptable to the logistics industry, and match the measurement information with the numbering information (such as bar code) to provide a follow-up inspection by the logistics company. Whether the logistics costs are used correctly.

An embodiment of the present invention relates to an object measuring system including a conveyor belt for transporting an object, a measuring frame body for passing the conveyor belt through the measuring frame body, and a first sensing device disposed on the Measuring the object on or off the side of the conveyor belt to pass the sensing object; a second sensing device is disposed on the measuring frame body to sense and determine the second sensing device and the object The distance between the two; an image device is disposed on the measuring frame body so that Taking an image of the object; at least one identification code (ID) identifying device disposed on the measuring frame body to identify an ID number or a bar code of the object; and a microprocessor coupled to the first sensing device The second sensing device, the image device, and the ID identifying device, wherein the microprocessor transmits information of the first sensing device, the second sensing device, the image device, and the ID identifying device Calculate the volume and shipping cost of the object.

Another embodiment of the present invention is directed to a regular shape object measuring system, including a border module, receiving an image captured by the image device for determining an area of the object; and a signal module receiving one The first sensing device data is configured to determine that an object passes; receive the plurality of heights of the object obtained by the second sensing device, and obtain a maximum height from the plurality of heights; and simultaneously receive the at least one ID identification The device captures a number of the object; a measurement module obtains a physical area of the object according to the area, the maximum height, and a scale comparison table; and a microprocessor multiplies the physical area by the physical area a maximum height, thereby obtaining a volume of the object, and obtaining a freight and a record module of the object, storing the number, the volume, and the freight of the object in a database, and simultaneously generating a recorded image .

Another embodiment of the present invention is a method for measuring a regular shaped object, comprising: receiving a first sensing device data for determining that an object passes; receiving an image transmitted by an image device for use with a pixel scale unit Determining an area of the object; receiving a set of heights of the object obtained by the second sensing device and taking the maximum height thereof, and simultaneously receiving at least one ID identification device Taking a number of the object; multiplying the area of the object by the height to obtain a physical area of the object, and multiplying the solid area by the maximum height of the object to obtain a volume of the object; The volume and shipping cost of the object; and storing the number, the volume, and the shipping cost of the object in a database and simultaneously generating a recorded image.

The above and other advantages of the present invention will be described in detail below with reference to the following drawings, detailed description of the embodiments, and claims.

10‧‧‧ Object Measurement System

11‧‧‧Conveyor belt

12‧‧‧Measurement frame

121‧‧‧Upper board

122‧‧‧right board

123‧‧‧left board

13‧‧‧First sensing device

14‧‧‧Second sensing device

15‧‧‧Image installation

16‧‧‧Microprocessor

17‧‧‧ID identification device

18‧‧‧ objects

20‧‧‧Regular Shape Object Measurement System

21‧‧‧Boundary Module

22‧‧‧Signal Module

23‧‧‧Measurement module

24‧‧‧Microprocessor

25‧‧‧record module

31‧‧‧White block

510-560‧‧‧ Process steps

The first figure is a schematic view consistent with an embodiment of the invention, illustrating an object measurement system.

The second figure is a schematic view consistent with an embodiment of the invention, illustrating a regularly shaped object measurement system.

The third to third c-graphs are schematic diagrams showing how the boundary module determines the area of the object.

The fourth picture is a schematic diagram showing the maximum height of the object.

The fifth figure is a schematic flow chart of a method for measuring a regular shape object.

The present invention relates to an object measuring system. Within the error range acceptable to the logistics industry, the area and volume of the object can be quickly calculated, and the measurement information and the numbering information (such as bar code) can be paired to provide a correct use of the logistics fee charged by the subsequent logistics company.

The first figure is a schematic view consistent with an embodiment of the invention, illustrating an object measurement system. As shown in the first figure, the object measuring system 10 includes a conveyor belt 11, a measuring frame body 12, a first sensing device 13, a second sensing device 14, an image device 15, and a microprocessor 16. And at least one ID recognition device 17. The conveyor belt 11 is for conveying an object 18; the measuring frame body 12 is disposed above the conveyor belt 11, and the conveyor belt 11 passes through the measuring frame body 12. The first sensing device 13 is disposed on the side of the measuring frame 12 for sensing whether an object 18 is passed or not; or the first sensing device 13 is disposed on one side of the conveyor belt 11 to sense whether there is an object. 18 passed or not. A second sensing device 14 is disposed on the measuring frame 12 for sensing and determining the distance between the second sensing device 14 and the object 18. The imaging device 15 is disposed on the measurement frame 12 for use in capturing an image of the object 18. At least one ID recognition device 17 is disposed on the measurement frame 12 for use to identify the number or barcode of the object 18. The microprocessor 16 is connected to the first sensing device 13, the second sensing device 14, the imaging device 15, and the ID identification device 17, respectively, wherein the microprocessor 16 receives the first sensing device 13, the second sensing device 14, The information of the image device 15 and the at least one ID recognition device 17 is such that the volume and shipping cost of the object 18 are calculated. The microprocessor 16 can be disposed at any position of the measurement frame 12.

The measuring frame body 12 includes an upper plate 121, a right side plate 122, and a left side plate 123. The upper plate 121 is located above and connects the right side plate 122 and the left side plate 123, respectively. The first sensing device 13 is disposed on the right side plate 122 and is located on the side of the conveyor belt 11. In an embodiment, the first sensing device 13 can also be disposed on the side of the conveyor belt 11 . The second sensing device 14 is disposed at The upper plate 121 is located above the conveyor belt 11. The image device 15 is disposed on the upper plate 121 and above the conveyor belt 11. The ID identification device 17 is disposed on the upper plate 121 and is located above or on one side of the conveyor belt 11. The second sensing device 14 , the imaging device 15 and the ID identification device 17 are disposed on the upper panel 121 , wherein the imaging device 15 is located between the ID identification device 17 and the second sensing device 14 . The ID recognition device 17 is located in front of the second sensing device 14. The microprocessor 16 is connected to the conveyor belt 11 to control the opening and closing of the conveyor belt 11.

When the first sensing device 13 determines that an object has passed, the second sensing device 14, the ID recognizing device 17 enters an activated state, and touches the image device 15 to capture an image of the object. Until the first sensing device 13 determines that the object is away, the second sensing device 14 and the ID recognizing device 17 return to the standby state.

The microprocessor 16 can receive the distance determined by the second sensing device 14 and the image captured by the imaging device 15 to calculate the volume of the object. For example, the distance from the second sensing device 14 to the conveyor belt 11 is subtracted from the distance determined by the second sensing device 14 to become the height of the object, and the captured image is adjusted to obtain a physical area, and the physical area is multiplied by The height of the object is to obtain the volume of the object, wherein the distance determined by the second sensing device 14 is the distance between the second sensing device 14 and the object.

The first sensing device 13 can be a photoelectric switch or a proximity switch for determining whether an object enters or the object leaves. The second sensing device 14 can be an infrared range finder, a laser range finder or an ultrasonic range finder. The distance between the second sensing device 14 and the object is determined. The imaging device 15 can be a camera or a camera for capturing an image of an object. The at least one ID recognition device 17 can be an identifiable one-dimensional or two-dimensional barcode, and can be an infrared reader or an image recognition reader.

The second figure is a schematic view consistent with an embodiment of the invention, illustrating a regularly shaped object measurement system. The regular shape object measuring system 20 includes a boundary module 21, which receives an image captured by the image device 15 for determining an area of an object, and a signal module 22 receives a first sensing device 13 Data for determining that an object has passed; receiving a second sensing device 14 to continuously acquire a plurality of heights of the object, and obtaining a maximum height from the plurality of heights; and simultaneously receiving At least one ID recognition device 17 captures a number of the object; a measurement module 23 obtains a physical area of the object according to the area, the maximum height, and a scale comparison table; a microprocessor 24, Multiplying the physical area by the maximum height to obtain a volume of the object, and obtaining a freight for the object; and a record module 25 storing the number, the volume, and the freight of the object in a database And at the same time produce a recorded image. The freight can be calculated or obtained by comparison with the freight comparison table, and both of the foregoing methods can be performed in the micro process.

The signal module 22 subtracts the distance from the second sensing device 14 to the conveyor belt by the height value obtained by the second sensing device to the object height, and selects the maximum value of the object height before the first sensing device ends the triggering. The maximum height of the object. The measuring module 23 can use the maximum height of the object processed by the signal module 22, and adjust the captured image to obtain a solid surface according to the formula of height and area. product. The module 23 is measured and multiplied by the maximum height of the object to obtain the volume of the object. The number captured before the first sensing device ends the trigger becomes the number of the object.

The third to third c-graphs are schematic diagrams showing how the boundary module determines the area of the object. The boundary module converts the image input from the image device into a gray scale, as shown in the third a diagram; and subtracts a background, as shown in the third b diagram; and performs a binarization determination, the image is performed. After the value is determined, it is converted into a white block, as shown in the third c. The boundary module determines the area of the object based on the obtained white block 31 and according to the scale.

The fourth picture is a schematic diagram showing the maximum height of the object. As shown in the fourth figure, the maximum height of the object can be used, wherein the left and right images display two different maximum heights to adjust the image captured by the image device to obtain the physical area.

The fifth figure is a schematic flow chart of a method for measuring a regular shape object. As shown in the fifth problem, the method includes receiving a first sensing device data for determining that an object passes (step 510); receiving an image transmitted by the image device, and using a pixel scaling unit to determine an object An area (step 520); receiving a set of heights of the object obtained by the second sensing device and taking the maximum height thereof, and simultaneously receiving a number of the object captured by the at least one ID identifying device (step 530); The area of the object is multiplied by the height to obtain a physical area of the object, and then the physical area is multiplied by the maximum height of the object. Obtaining a volume of the object (step 540); calculating the volume and shipping cost of the object (step 550); and storing the number, the volume, the shipping cost of the object in a database, and simultaneously generating a record Like (step 560).

Wherein, when the first sensing device determines that an object passes, the second sensing device and the at least one ID recognition device enter an activated state, and touch the image device to capture an image of the object; until the first sensing device determines that the object is away, The second sensing device and the ID identifying device are returned to a standby state; the microprocessor receives the distance determined by the second sensing device and the image captured by the image device to calculate the volume of the object.

In summary, the object measuring system and method of the present invention effectively solves the problem that the logistics industry measures and calculates the freight error and the slow operation speed by manual operation, and quickly calculates the area, volume and cost of the object by quickly calculating the object. To speed up the delivery time and efficiency of logistics operators.

The above is only the embodiment of the present invention, and the scope of the present invention cannot be limited thereto. All changes and modifications made to the scope of the patent application of the present invention are intended to fall within the scope of the invention.

10‧‧‧ Object Measurement System

11‧‧‧Conveyor belt

12‧‧‧Measurement frame

121‧‧‧Upper board

122‧‧‧right board

123‧‧‧left board

13‧‧‧First sensing device

14‧‧‧Second sensing device

15‧‧‧Image installation

16‧‧‧Microprocessor

17‧‧‧ID identification device

18‧‧‧ objects

Claims (24)

  1. An object measuring system comprises: a conveyor belt for conveying an object; a measuring frame body, wherein the conveyor belt is disposed and passes through the measuring frame body; and a first sensing device is disposed on the measuring frame body And a second sensing device is disposed on the measuring frame body to sense and determine a distance between the second sensing device and the object; an image device, setting And capturing an image of the object on the measuring frame; at least one identification code (ID) identifying device disposed on the measuring frame body to identify an ID number or a bar code of the object; and a microprocessor The first sensing device, the second sensing device, the image device, and the ID identifying device are respectively connected to the first sensing device, the second sensing device, and the image device. And the information of the ID identification device, so that the volume and freight of the object are calculated.
  2. The object measuring system of claim 1, wherein the first sensing device is a photoelectric switch or a proximity switch.
  3. The object measuring system according to claim 1, wherein the second sensing device is an infrared range finder, a laser range finder or an ultrasonic range finder.
  4. The object measuring system of claim 1, wherein the image device is a camera or a camera.
  5. The object measuring system of claim 1, wherein the ID identifying device is a one-dimensional identification device or a two-dimensional barcode.
  6. The object measuring system of claim 1, wherein the ID identifying device is an infrared reader or an image recognition reader.
  7. The object measuring system of claim 1, wherein the microprocessor is coupled to the conveyor belt to control the conveyor belt to open and close.
  8. The object measuring system of claim 1, wherein the measuring frame body comprises an upper plate, a right side plate and a left side plate, wherein the upper plate is located above and connects the right side plate and the left side plate respectively.
  9. The object measuring system of claim 10, wherein the first sensing device is disposed on the right side plate and is located at a side of the conveyor belt.
  10. The object measuring system of claim 10, wherein the second sensing device is disposed on the upper plate and above the conveyor belt.
  11. The object measuring system of claim 10, wherein the image device is disposed on the upper plate and above the conveyor belt.
  12. The object measuring system of claim 10, wherein the ID identifying device is disposed on the upper plate and above the conveyor belt.
  13. The object measuring system according to claim 10, wherein the ID identifying device is disposed on the upper plate and is located at a side of the conveyor belt.
  14. The object measuring system of claim 10, wherein the second sensing device, the image device and the ID identifying device are disposed on the upper board, and the image device is located in the ID identifying device and the second Between the sensing devices.
  15. The object measuring system of claim 14, wherein the ID identifying device is located in front of the second sensing device.
  16. The object measuring system of claim 1, further comprising a regularly shaped object measuring system, the regular shaped object measuring system comprising: a boundary module, receiving an image captured by the image device, Used to determine an area of the object; a signal module, configured to receive a first sensing device data for determining that an object passes; receiving a plurality of heights of the object obtained by the second sensing device, and obtaining a maximum height from the plurality of heights; Simultaneously receiving a number of the object captured by the at least one ID recognition device; a measurement module, according to the area, the maximum height and a scale comparison table, to obtain a physical area of the object; a microprocessor, Multiplying the physical area by the maximum height to obtain a volume of the object, and calculating a freight rate of the object; and a record module, storing the number, the volume, and the freight of the object in a database And at the same time produce a recorded image.
  17. A regular shape object measuring system, comprising: a boundary module, receiving an image captured by the image device for determining an area of the object; and a signal module receiving a first sensing device data, Determining that an object passes; receiving a plurality of heights of the object obtained by the second sensing device, and obtaining a maximum height from the plurality of heights; and simultaneously receiving one of the objects captured by the at least one ID recognition device a measurement module, according to the area, the maximum height and a scale comparison table, to obtain a physical area of the object; a microprocessor multiplies the maximum height by the physical area to obtain the object a volume and obtaining a freight for the object; and a record module storing the number, the volume, and the freight of the object in a database and simultaneously generating a recorded image.
  18. The rule shape object measuring system according to claim 17, wherein the boundary module converts the image into gray scale, subtracts the background and performs binarization determination, and then according to the obtained block, according to The ratio determines the area of the object.
  19. The method of measuring a shape object according to claim 17, wherein the signal module subtracts the distance obtained by the second sensing device from the second sensing device by the height of the second sensing device. The height of the object is selected to be the maximum height of the object before the end of the first sensing device is triggered to become the maximum height of the object.
  20. The rule shape object measuring system according to claim 17, wherein the ID identifying means picks up one of the numbers of the object before the first sensing device ends the triggering.
  21. For example, the ruled shape object measuring system described in claim 17 uses the maximum height of the object processed by the signal module, and adjusts the captured image to obtain the physical area according to the formula of height and area, and The solid area is multiplied by the maximum height of the object to obtain the volume of the object.
  22. A method for measuring a regular shape object, comprising: receiving a first sensing device data for determining that an object passes; receiving an image transmitted by an image device, and using a pixel scale unit for determining an area of the object; Receiving a set of heights of the object obtained by a second sensing device and taking the maximum height thereof, and simultaneously receiving a number of the object captured by the at least one ID identifying device; multiplying the area of the object by the height to obtain the a substantial area of the object, which is then multiplied by the maximum height of the object to obtain a volume of the object; the volume and freight of the object are calculated; The number, the volume, and the shipping cost of the object are stored in a database, and a recorded image is simultaneously generated.
  23. The method for measuring a regular shape object according to claim 22, wherein when the first sensing device determines that an object passes, the second sensing device, the at least one ID recognition device enters an activated state, and is activated. An image device captures an image of the object; until the first sensing device determines that the object is away, the second sensing device and the ID recognition device return to a standby state.
  24. The method for measuring a shape-shaped object according to claim 22, wherein the microprocessor receives the distance determined by the second sensing device and the image captured by the image device to calculate the object. volume.
TW103121956A 2014-06-25 2014-06-25 System and method for measuring an object TWI494538B (en)

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TW103121956A TWI494538B (en) 2014-06-25 2014-06-25 System and method for measuring an object
CN201410337929.3A CN105277120A (en) 2014-06-25 2014-07-16 System and method for measuring an object

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TW201600829A TW201600829A (en) 2016-01-01

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CN106066153A (en) * 2016-05-25 2016-11-02 武汉理工大学 A kind of device detecting warehoused cargo size and weight
CN106441164A (en) * 2016-11-02 2017-02-22 河南工程学院 Product measurement system based on computer picture recognition technology
CN109341566A (en) * 2018-08-30 2019-02-15 南京理工大学 A kind of round-the-clock online two-dimensional contour shape detector of stand alone type

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