TWI748350B - Dimension detection method and system - Google Patents

Abstract

A size detection method is implemented by a size detection system including a storage unit, a shooting unit and a processing unit on a plurality of different objects, and the storage unit stores a plurality of size detection data. For each object, the method includes: the processing unit recognizes the identification feature exposed on the object according to the result of the shooting unit shooting the object; the processing unit selects the identified feature from the size detection data according to the identification feature and includes the target size measurement The program and the target size detection data of the target size compliance condition; the processing unit executes the target size measurement program according to the result of the shooting unit shooting the object to generate the size measurement result and an indicator indicating whether the size measurement result meets the target compliance condition Size detection result; the processing unit outputs the size detection result.

Description

Dimension detection method and system

The invention relates to a size detection method, in particular to a size detection method involving image recognition technology. The invention also relates to a size detection system capable of implementing the size detection method.

In recent years, the development of automation technology has effectively increased the production capacity of many products. However, the increase in production capacity also means that the subsequent quality inspection operations will be relatively under greater pressure. The topic to be discussed in this case is how to use Product quality inspection work in terms of size can be carried out more smoothly.

One of the objectives of the present invention is to provide a size inspection method that enables the size inspection operation to be performed more smoothly.

The size detection method of the present invention is implemented by a size detection system for multiple objects that are different from each other. The size detection system includes a storage unit, a shooting unit, and a processing unit. The storage unit stores a plurality of size detection data, each of which is detected The data includes a size measurement procedure and the size compliance conditions corresponding to the size measurement procedure. For each object, the size detection method includes the following steps: (A) the processing unit performs image recognition based on the result of shooting the object by the shooting unit, so as to identify an identification feature exposed on the object; (B) the The processing unit selects a target size detection data indicated by the identification feature from the size detection data according to the identification feature, and the size measurement procedure and the size compliance condition contained in the target size detection data are respectively regarded as A target size measurement procedure and a target size compliance condition; (C) the processing unit executes the target size measurement procedure according to the result of the shooting unit shooting the object to generate a size measurement result, and an instruction Determine whether the size measurement result meets the target compliance condition of the size detection result; (D) The processing unit outputs the size detection result.

In some embodiments of the size detection method of the present invention, in step (A), the identification feature is an identification code formed on the object, and the processing unit uses optical character recognition technology to identify the identification feature.

In some embodiments of the size detection method of the present invention, the size detection system further includes a light-emitting unit capable of emitting light under the control of the processing unit, and the light-emitting unit includes a first light source and a second light source. The light emitted by the light source is forward light relative to the photographing unit, and the light emitted by the second light source is backward light relative to the photographing unit. In step (A), the processing unit controls the first light source to emit light, so that The object receives light toward a first side surface of the photographing unit, and the processing unit controls the photographing unit to photograph the object when the first light source emits light, so as to obtain a first photographing result from the photographing unit, And perform image recognition on the first shooting result to recognize the recognition feature. In step (C), the processing unit controls the second light source to emit light so that the object receives light on a second side surface of the shooting unit away from it, In addition, the processing unit controls the photographing unit to photograph the object when the second light source emits light, so as to obtain a second photographing result from the photographing unit, and execute the target size measurement program according to the second photographing result .

In some implementation aspects of the size detection method of the present invention, the photographing unit is used for shooting downwards, and the second light source is a planar light source device, and has a spaced opposite to the photographing unit and is used for facing downwards. The upper light-emitting surface of the upper light-emitting surface, and, at least in step (C), the object is carried on the upper light-emitting surface of the second light source.

In some embodiments of the size detection method of the present invention, in step (B), the target size measurement program indicates at least a pair of measurement positions on the object, and the target size compliance condition includes at least one and The pair of measurement positions corresponds to the compliant size range, and, in step (C), the size measurement result includes at least one separation distance corresponding to the compliant size range, and when the processing unit determines that each When the separation distance is within the range of the corresponding compliant size, a size detection result indicating that the size measurement result meets the target compliance condition is generated, and when the processing unit determines that any separation distance is not within its corresponding range When the size is within the compliance size range, a size detection result indicating that the size measurement result does not meet the target compliance condition is generated.

In some embodiments of the size detection method of the present invention, in step (C), during the process of the processing unit executing the target size measurement program, the processing unit first photographs the object according to the photographing unit As a result, multiple feature points of the object are identified, and the posture presented by the object is calculated based on the feature points. Then, the processing unit then recognizes the pair of measurement positions according to the posture presented by the object.

Another object of the present invention is to provide a size detection system that can implement the size detection method.

The size detection system of the present invention is suitable for application to a plurality of different objects, and includes a storage unit, a shooting unit, and a processing unit electrically connected to the storage unit and the shooting unit. The storage unit stores a plurality of size detection data. Each size inspection data includes a size measurement procedure and a corresponding size compliance condition for the size measurement procedure. For each object: the processing unit performs image recognition according to the result of shooting the object by the shooting unit to identify an identification feature exposed on the object; the processing unit selects from the size detection data according to the identification feature A target size detection data indicated by the identification feature, the size measurement procedure and the size compliance condition included in the target size detection data are respectively regarded as a target size measurement procedure and a target size compliance condition; The processing unit executes the target size measurement program according to the result of the shooting unit shooting the object to generate a size measurement result, and a size detection result indicating whether the size measurement result meets the target compliance condition ; The processing unit outputs the size detection result.

In some embodiments of the size detection system of the present invention, the identification feature is an identification code formed on the object, and the processing unit uses optical character recognition technology to identify the identification feature.

In some embodiments of the size detection system of the present invention, the size detection system further includes a light-emitting unit capable of emitting light under the control of the processing unit, and the light-emitting unit includes a first light source and a second light source. The light emitted by the light source is forward light relative to the photographing unit, and the light emitted by the second light source is backward light relative to the photographing unit. And, for each object: the processing unit also controls the first light source to emit light, so that the object receives light toward a first side surface of the photographing unit, and the processing unit also controls the first light source to emit light. The photographing unit photographs the object to obtain a first photographing result from the photographing unit, and the processing unit performs image recognition on the first photographing result to identify the identification feature; the processing unit also controls the second light source Emit light, so that the object receives light from a second side surface of the shooting unit, and the processing unit controls the shooting unit to shoot the object when the second light source emits light, so as to obtain an image from the shooting unit The second shooting result, and the processing unit executes the target size measurement program according to the second shooting result.

In some embodiments of the size detection system of the present invention, the photographing unit is used for shooting downwards, and the second light source is a planar light source device, and has a spaced opposite to the photographing unit and is used for facing downwards. The upper light-emitting surface of the upper light-emitting surface, and when the processing unit controls the second light source to emit light, the object is carried on the upper light-emitting surface of the second light source.

In some implementation aspects of the size detection system of the present invention, the target size measurement program indicates at least a pair of measurement positions on the object, and the target size compliance condition includes at least one compliance condition corresponding to the pair of measurement positions. The measurement result of the size includes at least one separation distance corresponding to the compliant size range, and when the processing unit determines that each separation distance is within the corresponding compliant size range, Generate a size detection result indicating that the size measurement result meets the target compliance condition, and when the processing unit determines that any separation distance is not within the corresponding compliant size range, it generates an indication that the size measurement The result does not meet the dimensional inspection result of the target compliance condition.

In some embodiments of the size detection system of the present invention, when the processing unit executes the target size measurement program, the processing unit first recognizes that the object has the object according to the result of the shooting unit shooting the object. And calculate the posture presented by the object according to the feature points, and then the processing unit recognizes the pair of measurement positions according to the posture presented by the object.

The effect of the present invention is that the processing unit selects the target size detection data according to the identification feature, executes the target size measurement program to generate the size measurement result and the size detection result, and output the size detection result. The size detection system can automatically perform size detection on various objects without restricting the sequence, and there is no need to manually select the type of object to be detected. Therefore, the size detection system can indeed make the size quality inspection work more smoothly. It can indeed achieve the purpose of the invention.

Before the present invention is described in detail, it should be noted that the "electrical connection" mentioned in this patent specification refers to a wired electrical connection between multiple electronic devices/devices/components connected through conductive materials, as well as through wireless communication Technology is a radio connection for wireless signal transmission. Moreover, the “electrical connection” mentioned in this patent specification also refers to the “direct electrical connection” formed by the direct connection between two electronic equipment/devices/components, and the “direct electrical connection” between the two electronic equipment/devices/components "Indirect electrical connection" formed by connecting other electronic equipment/devices/components.

1 and 2 at the same time, an embodiment of the size detection system 1 of the present invention is suitable for size detection of multiple objects that are different from each other, and the size detection system 1 includes a storage unit 11, a photographing unit 12, and a light emitting unit. The unit 13, an output unit 14, and a processing unit 15 electrically connected to the storage unit 11, the photographing unit 12, the light-emitting unit 13 and the output unit 14.

The storage unit 11 can be implemented as a hard disk, for example, and stores multiple pieces of size detection data related to the objects. More specifically, in this embodiment, each size detection data corresponds to one of the objects, and each size detection data includes, for example, a detection mode code, a size measurement program, and a corresponding size. Dimensional compliance conditions for measurement procedures.

The photographing unit 12 may be implemented as an industrial camera, for example, and, as shown in FIG. 2, a photographing lens 121 of the photographing unit 12 is facing downward in this embodiment, that is, the photographing unit 12 is set for shooting downward in this embodiment, but it is not limited to this.

The output unit 14 can be implemented as a display screen, for example, and the processing unit 15 can be implemented as a central processing unit, for example.

It is added that in other embodiments, the storage unit 11 can also be implemented as any other type of data storage device (such as read-only memory or flash memory) or a combination thereof, and the shooting unit 12 can also be implemented For example, implemented as any other image recording device with camera function, the output unit 14 can also be implemented as a speaker, or a combination of a speaker and a display screen, and the processing unit 15 can also be implemented as a microprocessor (Microprocessor), a digital signal processor (Digital Signal Processor), or an Application-Specific Integrated Circuit (Application-Specific Integrated Circuit), but not limited to this embodiment.

The light-emitting unit 13 includes a first light source 131 and a second light source 132 electrically connected to the processing unit 15, and the first light source 131 and the second light source 132 can each be controlled by the processing unit 15 to emit light or not to emit light . In more detail, as shown in FIG. 2, the first light source 131 and the second light source 132 are respectively implemented as two planar light source devices opposite to each other in this embodiment, wherein the first light source 131 is arranged at Above the photographing unit 12, there is a lower light emitting surface 133 for downward light emission. On the other hand, the second light source 132 is arranged below the photographing unit 12 and has a distance from the photographing unit 12 An upper light-emitting surface 134 opposite to and used for upward light emission. That is to say, when the photographing unit 12 performs photographing, the light emitted by the first light source 131 is forward light relative to the photographing unit 12, and the light emitted by the second light source 132 is relative to the photographing unit 12 For reverse light.

In the exemplary application of this embodiment, the objects are, for example, a plurality of soles 5 (Figure 2 exemplarily shows one of them), and each sole 5 belongs to a specific brand, style, and size. Moreover, the size detection data stored in the storage unit 11 corresponds to one of the multiple types of the shoe soles 5, that is, each size detection data uniquely corresponds to one of the specific brands and styles. And the size of the sole 5. It is added that the application of this embodiment is not limited to the size detection of shoe soles. Therefore, in other applications of this embodiment, the objects can also be any other products or semi-finished products that require size detection, respectively. It is not limited to the application described in this embodiment.

For example, an identification feature is revealed on each shoe sole 5. With reference to FIG. 3, taking the sole 5 shown in FIG. 3 as an example, the identification feature on the sole 5 is, for example, an identification code 51 composed of multiple characters, and the identification code 51 may, for example, be a convex It is formed integrally with the sole 5 on the upper surface of the sole 5 in a raised (can also be recessed) manner.

Furthermore, the identification code 51 is used to indicate the brand, style and size of the sole 5, for example. That is to say, if the brands, styles and sizes of any two soles 5 are exactly the same, the identification codes 51 of the two will also be the same as each other, and if the brands, styles and sizes of any two soles 5 have any of them If one is different from each other, the identification codes 51 of the two will also be different from each other.

It is supplemented that for shoe soles or other types of objects not shown in other figures, the identification code 51 can also be exposed on the shoe sole, for example, by labeling or printing, or the identification feature can also be, for example, It is implemented as a bar code, a symbol, or a pattern displayed on the appearance of the object, or the appearance feature of the object itself, and is not limited to the identification code 51 described in this embodiment.

Referring to FIG. 4 in conjunction with FIGS. 1 to 3, the following exemplarily describes in detail how the size detection system 1 of this embodiment implements a size detection method on the sole 5 shown in FIG. 3.

First, in the case where the sole 5 is carried on the upper light-emitting surface 134 of the second light source 132, and the side of the sole 5 showing the identification code 51 is completely located within the shooting range of the shooting unit 12 (i.e., as shown in the figure) 2), the process starts from step S1.

It is supplemented that before step S1 is started, the sole 5 may be transported to the upper light-emitting surface 134 of the second light source 132 by a robotic arm or other type of transport device, and then adjusted by a positioning mechanism. The sole 5 is positioned to a predetermined position of the upper light-emitting surface 134, and the sole 5 presents a predetermined angle. In other words, the second light source 132 is also used as a bearing platform for carrying the sole 5 in this embodiment, and the robotic arm and the positioning mechanism will assume the sole 5 in a preset posture (that is, the The preset position and the preset angle) are placed on the second light source 132, but not limited to this.

In step S1, the processing unit 15 controls the first light source 131 to emit light, and controls the second light source 132 not to emit light, so that a first side surface of the shoe sole 5 facing the photographing unit 12 is emitted by the first light source 131 The light shines. Moreover, when the first light source 131 emits light, the processing unit 15 also controls the photographing unit 12 to photograph the sole 5 to obtain a first photographing result from the photographing unit 12. In more detail, in this embodiment, the first side surface of the shoe sole 5 is the upper surface of the shoe sole 5 on which the identification code 51 is formed, and the first photographing result is, for example, a photograph taken by the photographing unit 12 A color photo produced, but not limited to this. It is worth noting that because the light emitted by the first light source 131 is forward light for the photographing unit 12, and the identification code 51 is convex (or concave) on the sole 5, the photographing The unit 12 performs shooting when the first light source 131 emits light, which helps to make the identification code 51 on the sole 5 appear more three-dimensional and clear in the first shooting result, which is suitable for image recognition.

After the processing unit 15 obtains the first photographing result, the flow proceeds to step S2.

In step S2, the processing unit 15 uses optical character recognition (Optical Character Recognition, OCR) technology to perform image recognition on the first shooting result to recognize the identification code 51. More specifically, in this embodiment, the processing unit 15 can perform image recognition on the first shooting result by running an optical character recognition model pre-stored in the storage unit 11 to recognize the recognition. Code 51, but not limited to this.

After the processing unit 15 recognizes the identification code 51, the flow proceeds to step S3.

In step S3, the processing unit 15 selects a target size detection data indicated by the identification code 51 from the size detection data according to the identification code 51. More specifically, in this embodiment, the processing unit 15 may, for example, determine whether the identification code 51 matches the detection mode code of one of the size detection data, if the determination result of the processing unit 15 is If yes, the processing unit 15 selects the pen size detection data whose detection mode code matches the identification code 51 as the target size detection data, and if the judgment result of the processing unit 15 is no, the processing unit 15 transmits The output unit 14 outputs a recognition failure notification, but it is not limited to this.

For ease of description, the size measurement procedure and the size compliance condition included in the target size detection data are respectively used as a target size measurement procedure and a target size compliance condition of this embodiment.

In conjunction with FIG. 5, in this embodiment, the target size measurement program indicates, for example, two pairs of measurement positions on the shoe sole 5. More specifically, the pair of measurement positions indicated by the target size measurement program may be, for example, a measurement position P1 and a measurement position P2 shown in FIG. 5, and the target size measurement program The other pair of measurement positions indicated may be, for example, a measurement position P3 and a measurement position P4 shown in FIG. 5, respectively. On the other hand, the target size compliance condition includes, for example, two compliant size ranges, and the two compliant size ranges are a pair of first compliant size ranges corresponding to the measurement positions P1 and P2, and a pair of It should be the second compliant size range for the measurement positions P3 and P4. More specifically, the first compliant size range, for example, represents the allowable distance range between the measurement position P1 and the measurement position P2 (for example, 108mm~110mm), that is, the pair of measurement positions P1, P2 Similarly, the second compliant size range represents, for example, the allowable distance range between the measurement position P3 and the measurement position P4, that is, the pair of measurement positions P3, The allowable tolerance between P4, but not limited to this.

It should be understood that the target size measurement program and the target size compliance conditions described in this embodiment are only for illustrative purposes, and are not used to limit the scope of implementation of the present invention. In a similar implementation aspect, the number of measurement positions indicated by the target size measurement program can also be one pair, three pairs or more, and the target size compliance condition includes the range of the compliance size. The number can also be adjusted freely according to the number of measurement positions, and is not limited to this embodiment.

After the processing unit 15 selects the target size detection data, the flow proceeds to step S4.

In step S4, the processing unit 15 controls the second light source 132 to emit light, and controls the first light source 131 not to emit light, so that a second side surface of the sole 5 facing away from the photographing unit 12 is affected by the second light source 132. The emitted light shines. Moreover, when the second light source 132 emits light, the processing unit 15 also controls the photographing unit 12 to photograph the sole 5 to obtain a second photographing result from the photographing unit 12. In more detail, in the present embodiment, the second side surface of the sole 5 is the lower surface of the sole 5 facing the second light source 132, and the second photographing result is, for example, the photograph taken by the photographing unit 12 Another color photo produced, but not limited to this. It is worth noting that because the sole 5 is placed on the upper light-emitting surface 134 of the second light source 132, part of the light emitted by the second light source 132 will be shielded by the sole 5, and due to the The light emitted by the second light source 132 is reverse light for the photographing unit 12, therefore, the photographing unit 12 takes pictures when the second light source 132 emits light, which helps increase the sole 5 and the photographing background (also It is the contrast between the light and darkness of the upper light-emitting surface 134 of the second light source 132, which further highlights the outline of the sole 5, so that the outline edge of the sole 5 appears clearer and sharper in the second photographing result.

After the processing unit 15 obtains the second photographing result, the flow proceeds to step S5.

In step S5, the processing unit 15 executes the target size measurement program according to the second shooting result to generate a size measurement result. In this embodiment, the size measurement result includes, for example, two separation distances, and the two separation distances are respectively a first separation distance D1 corresponding to the first compliance size range, and a corresponding second compliance size The second separation distance D2 of the range. More specifically, the first separation distance D1 is the result of the processing unit 15 measuring the separation distance between the measurement position P1 and the measurement position P2, and the second separation distance D2 is the processing unit 15 The result of measuring the separation distance between the measurement position P3 and the measurement position P4.

In addition, in this embodiment, when the processing unit 15 executes the target size measurement program, the processing unit 15 first recognizes a plurality of feature points of the sole 5 according to the second photographing result ( It can be, for example, the lines on the surface of the sole 5), and calculate the posture of the sole 5 according to the feature points, that is, calculate the position and angle of the sole 5 on the second light source 132. Then, the processing unit 15 recognizes the two pairs of measurement positions (that is, the measurement positions P1 to P4) according to the posture presented by the sole 5 to generate the size measurement result. In this way, even if the position and angle of the sole 5 placed on the second light source 132 are slightly offset from the preset values, the processing unit 15 can still accurately determine the position and angle of the second light source 132 based on the relative positions of the characteristic points. The measurement positions P1 to P4 are identified, so that the first separation distance D1 and the second separation distance D2 can be accurately measured.

After the processing unit 15 generates the size measurement result, the flow proceeds to step S6.

In step S6, the processing unit 15 compares the size measurement result with the target compliance condition, and generates a size detection result indicating whether the size measurement result meets the target compliance condition. Specifically, if the processing unit 15 determines that each interval distance is within its corresponding compliance size range, it determines that the size measurement result meets the target compliance condition, and if the processing unit 15 determines If any one of the separation distances is not within the corresponding compliance size range, the processing unit 15 determines that the size measurement result does not meet the target compliance condition.

Taking this embodiment for example, if the processing unit 15 determines that the first separation distance D1 is within the first compliant size range, and the second separation distance D2 is also within the second compliant size range At this time, the processing unit 15 generates a size detection result indicating that the size measurement result meets the target compliance condition. On the other hand, if the processing unit 15 determines that the first separation distance D1 is not within the first compliant size range, or the second separation distance D2 is not within the second compliant size range, then The processing unit 15 generates a size detection result indicating that the size measurement result does not meet the target compliance condition.

After the processing unit 15 generates the size detection result, the flow proceeds to step S7.

In step S7, the processing unit 15 displays the size measurement result and the size detection result through the output unit 14 for reference by the operator of the size detection system 1. In this way, the size detection result can be used for the operator to judge whether the size of the shoe sole 5 meets the product specification, more specifically, the size detection result can be used for the operator to judge whether the shoe sole 5 is defective in size Product, and decide whether to eliminate the sole 5. It is added that in other embodiments, the processing unit 15 may only output the size detection result through the output unit 14 without outputting the size measurement result. On the other hand, the processing unit 15 may also output the size measurement result. The size measurement result and the size detection result are output to other automated operating systems, so that it performs subsequent automated processing (such as assembly or transport to a defective product center) on the sole 5 according to the size measurement result and the size detection result ), but not limited to this embodiment.

The above is an example description of the size measurement method of this embodiment. It should be understood that for soles of other brands, styles and/or sizes other than the sole 5, or even other types of objects other than the sole, the size measurement method implemented in this embodiment is compared with the foregoing Roughly the same, in this way, by implementing the size measurement method, the size detection system 1 of this embodiment can automatically recognize the identification features of various objects, and select the size detection data indicated by it as the target size Check the data to carry out the size measurement procedures corresponding to various objects. As a result, the size detection system 1 can not only support the size detection function for various objects at the same time, but also can automatically perform size detection on various objects in an unlimited order and without manual operation. The quality inspection operation is carried out more smoothly.

It is added that, in another embodiment, if the surrounding environment of the size detection system 1 is sufficiently bright, the size detection system 1 may not include the light-emitting unit 13 described in this embodiment, and In another embodiment that does not include the light-emitting unit 13, the processing unit 15 may only control the photographing unit 12 to photograph the object once in the size detection method, and perform the processing according to the result of the photographing unit 12 taking a single shot of the object. The identification of the identification features and the execution of the target size measurement program are not limited to this embodiment.

In summary, by implementing the size detection method, the size detection system 1 of this embodiment can automatically perform size detection on various objects without restricting the sequence, and there is no need to manually select the types of objects to be detected. Therefore, The size inspection system 1 can indeed make the size inspection work more smoothly, and can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of implementation of the present invention, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1: Dimension detection system 11: storage unit 12: Shooting unit 121: shooting lens 13: Light-emitting unit 131: The first light source 132: second light source 133: lower light-emitting surface 134: upper light-emitting surface 14: output unit 15: Processing unit 5: sole 51: Identification code P1~P4: measurement position D1: The first separation distance D2: Second separation distance S1~S7: steps

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a block diagram of an embodiment of the size detection system of the present invention; FIG. 2 is a three-dimensional schematic diagram exemplarily showing a photographing unit, a light-emitting unit, and an object suitable for the embodiment; Figure 3 is a schematic diagram illustrating the object (the object is a shoe sole) and an identification code exposed on the shoe sole; Fig. 4 is a flowchart illustrating how the embodiment implements a size detection method for the shoe sole; and Fig. 5 is a schematic diagram illustrating two pairs of measurement positions corresponding to the sole and two corresponding separation distances.

S1~S7: steps

Claims (8)

A size detection method is implemented on a plurality of different objects by a size detection system. The size detection system includes a storage unit, a shooting unit, a light emitting unit and a processing unit. The storage unit stores a plurality of size detection data, Each size inspection data includes a size measurement program and a size compliance condition corresponding to the size measurement program. The light emitting unit includes a first light source and a second light source capable of emitting light under the control of the processing unit. The light emitted by the first light source is forward light relative to the photographing unit, and the light emitted by the second light source is backward light relative to the photographing unit; for each object, the size detection method includes the following steps: (A) The processing unit controls the first light source to emit light so that the object receives light toward a first side surface of the photographing unit, and the processing unit controls the photographing unit to photograph the object when the first light source emits light, so as to Obtain a first photographing result from the photographing unit, and perform image recognition on the first photographing result to identify an identification feature exposed on the object; (B) the processing unit obtains from the size detection data according to the identification feature Select a target size inspection data indicated by the identification feature, the size measurement procedure and the size compliance condition contained in the target size inspection data are respectively regarded as a target size measurement procedure and a target size compliance condition (C) The processing unit controls the second light source to emit light, so that the object receives light on a second side surface of the photographing unit, and the processing unit controls the photographing unit to emit light when the second light source emits light. Object proceeding Shooting to obtain a second shooting result from the shooting unit, and the processing unit executes the target size measurement program according to the second shooting result to generate a size measurement result, and an indication of whether the size measurement result conforms to The size detection result of the target compliance condition; and (D) the processing unit outputs the size detection result. The size detection method according to claim 1, wherein, in step (A), the identification feature is an identification code formed on the object, and the processing unit uses optical character identification technology to identify the identification feature. The size detection method according to claim 1, wherein the photographing unit is used for shooting downwards, and the second light source is a planar light source device, and has a spaced opposite to the photographing unit and is used for facing downwards. The upper light-emitting surface of the upper light-emitting surface, and, at least in step (C), the object is carried on the upper light-emitting surface of the second light source. A size detection method is implemented by a size detection system for multiple objects that are different from each other. The size detection system includes a storage unit, a shooting unit, and a processing unit. The storage unit stores a plurality of size detection data, each of which is detected The data includes a size measurement procedure and a size compliance condition corresponding to the size measurement procedure. For each object, the size detection method includes the following steps: (A) The processing unit photographs the object according to the photographing unit The result of image recognition is performed to identify an identification feature exposed on the object; (B) the processing unit selects a target size detection data indicated by the identification feature from the size detection data according to the identification feature, Should The size measurement procedure and the size compliance condition included in the target size detection data are respectively regarded as a target size measurement procedure and a target size compliance condition, and the target size measurement procedure indicates at least one pair on the object Measuring position, and the target size compliance condition includes at least one compliant size range corresponding to the pair of measurement positions; (C) the processing unit executes the target size measurement according to the result of shooting the object by the shooting unit A program to generate a size measurement result and a size test result indicating whether the size measurement result meets the target compliance condition, the size measurement result includes at least one separation distance corresponding to the compliance size range, And, when the processing unit determines that each separation distance is within the corresponding compliance size range, it generates a size detection result indicating that the size measurement result meets the target compliance condition, and when the processing unit When it is determined that any separation distance is not within the range of the corresponding compliance size, a size detection result indicating that the size measurement result does not meet the target compliance condition is generated, and the processing unit executes the target size During the measurement procedure, the processing unit first recognizes the multiple characteristic points of the object according to the result of the photographing of the object by the photographing unit, and calculates the posture of the object based on the characteristic points. Then, the processing unit recognizes the pair of measurement positions according to the posture presented by the object; and (D) the processing unit outputs the size detection result. A size detection system, suitable for use in a number of different objects, and includes: a storage unit for storing multiple size detection data, each size detection The data includes a size measurement program and size compliance conditions corresponding to the size measurement program; a shooting unit; a light emitting unit including a first light source and a second light source; and a processing unit electrically connected to the storage Unit, the photographing unit, and the light-emitting unit; wherein the first light source and the second light source can emit light under the control of the processing unit, and the light emitted by the first light source is forward light relative to the photographing unit, the The light emitted by the second light source is reverse light with respect to the photographing unit, and for each object: the processing unit controls the first light source to emit light so that the object receives light toward a first side surface of the photographing unit, and, The processing unit controls the photographing unit to photograph the object when the first light source emits light, so as to obtain a first photographing result from the photographing unit, and performs image recognition on the first photographing result to identify the An identification feature of the object; the processing unit selects a target size detection data indicated by the identification feature from the size detection data according to the identification feature, the size measurement program and the size measurement program included in the target size detection data The size compliance conditions are respectively used as a target size measurement program and a target size compliance condition; the processing unit controls the second light source to emit light so that the object receives light on a second side surface of the shooting unit, and The processing unit controls the photographing unit to photograph the object when the second light source emits light. To obtain a second photographing result from the photographing unit, and the processing unit executes the target size measurement program according to the second photographing result to generate a size measurement result, and an indication of whether the size measurement result conforms to The size detection result of the target compliance condition; and the processing unit outputs the size detection result. The size detection system according to claim 5, wherein the identification feature is an identification code formed on the object, and the processing unit uses optical character recognition technology to identify the identification feature. The size detection system according to claim 5, wherein the photographing unit is used for shooting downwards, and the second light source is a planar light source device, and has a spaced opposite to the photographing unit and is used for facing downwards. The upper light-emitting surface of the upper light-emitting surface, and when the processing unit controls the second light source to emit light, the object is carried on the upper light-emitting surface of the second light source. A size detection system suitable for application to multiple different objects, and includes: a storage unit storing multiple size detection data, each size detection data includes a size measurement program, and a corresponding size measurement program A photographing unit; and a processing unit electrically connected to the storage unit and the photographing unit; wherein, for each object: the processing unit performs image recognition based on the result of the photographing of the object by the photographing unit, To identify an identification feature exposed on the object; the processing unit detects the size of the data according to the identification feature Select a target size inspection data indicated by the identification feature, the size measurement procedure and the size compliance condition contained in the target size inspection data are respectively regarded as a target size measurement procedure and a target size compliance condition , The target size measurement program indicates at least a pair of measurement positions on the object, and the target size compliance condition includes at least one compliant size range corresponding to the pair of measurement positions; the processing unit is based on the photographing unit The target size measurement program is executed on the result of shooting the object to generate a size measurement result, and a size test result indicating whether the size measurement result meets the target compliance condition, and the size measurement result includes At least one separation distance corresponding to the compliant size range, and when the processing unit determines that each separation distance is within the corresponding compliant size range, it generates an indication that the size measurement result meets the The size detection result of the target compliance condition, when the processing unit determines that any separation distance is not within the corresponding compliance size range, it generates a size indicating that the size measurement result does not meet the target compliance condition The detection result, and, in the process of the processing unit executing the target size measurement program, the processing unit first recognizes the multiple feature points of the object according to the result of the shooting unit shooting the object, and according to The feature points calculate the posture presented by the object, and then the processing unit recognizes the pair of measurement positions according to the posture presented by the object; and the processing unit outputs the size detection result.

Images