TW202038131A - Synchronous positioning device and method for circuit board or plate member - Google Patents

Abstract

This disclosure provides a synchronous positioning device for a circuit board or a plate member, which comprises: an image capture adapted for capturing a circuit board image; a central processing unit adapted for electrically connecting to the image capture for receiving the circuit board image, wherein the central processing unit generates an identification instruction according to the circuit board image and generates a display content, wherein the display content comprises a first feature point, a second point and a target point, and the display content only comprises a part of the circuit board image; and a display interface electrically connecting to the central processing unit, wherein the display interface is adapted for receiving the display content.

Description

Instant positioning device and method for plate component

The present invention relates to an instant positioning device and method for plate components, in particular to an instant positioning device and method for plates or other plates.

Today, circuit boards (PCBs) are basic components in various electronic devices. On the other hand, as people's requirements for the functions and specifications of electronic devices continue to increase, the configuration of components on the circuit board is becoming more and more complicated. The more complicated the configuration of the circuit board is, the easier it is to make mistakes in the process of proofing or mass production, which will cause the circuit board to fail or malfunction. Therefore, how to efficiently locate the contacts and present them clearly for subsequent inspection or correction becomes more important.

However, the current existing detection methods need to rely on large machines to complete. When large-scale machines are needed to inspect circuit boards, most of them need to cooperate with the scheduling of factory machines, which is quite inconvenient for the manufacturing industry that requires efficient operation; and manual inspection through existing devices requires more Checking the comparison time also indirectly increases product debugging and R&D costs.

Therefore, there is still a need for an instant positioning device and method for plate members to improve the above problems.

The present invention is to provide a real-time positioning device and method for plate components, which can accurately locate the contact point and reference point to be detected, and magnify the position of the contact point and reference point to the user for viewing. A simple and portable device performs the above-mentioned operations to reduce the cost of detecting and developing a small number of defective circuit boards, thereby making the development of related products more efficient.

The present invention is to provide a real-time positioning method of a panel component, including: obtaining a panel image with an imagefinder of an end device; receiving the panel image with a central processing unit of the end device and generating an identification accordingly Instruction; the central processing unit receives a target instruction; the central processing unit searches for a model diagram including a plurality of first feature points and a plurality of second feature points from a plate database according to the identification instruction; The central processing unit locates the first feature points on the board image, and locates a target point on the board image according to the target instruction and the first feature points; the central processing unit selects the first feature points One of the characteristic points; using the central processing unit to locate one of the second characteristic points on the board image at least according to the target point; using the central processing unit to generate a display content, wherein the display content includes the selected The first feature point, the located second feature point and the target point, and the display content only includes a part of the panel image; and the display content is displayed by a display interface of the terminal device.

The present invention is to provide another method for real-time positioning of panel components, which is different from the foregoing embodiment, including: obtaining a panel image with an imagefinder of an end device; using a central processing unit of a cloud server through a network Receive the board image and generate an identification command; use the CPU to receive a target command sent by the end device through the network; use the CPU to search a board database that contains multiple A model diagram of a first feature point and a plurality of second feature points; the central processing unit is used to locate the first feature points on the board image, and according to the target instruction and the first feature points in the Locate a target point on the board image; use the central processing unit to select one of the first feature points; use the central processing unit to locate one of the second feature points on the board image at least according to the target point ; Using the central processing unit to generate a display content, wherein the display content includes the selected first feature point, the second feature point and the target point that are positioned, and the display content only includes one of the board image Part; and using the central processing unit to transmit the display content to the end device via a network, and display the display content by a display interface of the end device.

The present invention is to provide a real-time positioning device for panel components, including: obtaining a panel image with an imagefinder of an end device; receiving the panel image via a network with a central processing unit of a cloud server and Generate a recognition command; use the central processing unit to receive a target command sent by the end device through the network; use the central processing unit to search a board database containing multiple first feature points and multiples according to the recognition command A model diagram of the second feature points; use the central processing unit to locate the first feature points on the board image, and locate a target on the board image according to the target instruction and the first feature points Point; using the central processing unit to select one of the first characteristic points; using the central processing unit to locate one of the second characteristic points on the board image at least according to the target point; using the central processing unit to generate A display content, wherein the display content includes the selected first feature point, the positioned second feature point and the target point, and the display content only includes a part of the panel image; and the center The processor transmits the display content to the terminal device through the network, and displays the display content through a display interface of the terminal device.

The present invention is to provide a real-time positioning device and method for a plate member, which can accurately locate the contact point and reference point to be detected, and present the position of the contact point and reference point to the user for viewing in a simpler manner. The portable device performs the above operations, effectively reducing the cost of detecting and developing a small number of defective circuit boards, and making the development of related products more efficient.

The above description of the content of the disclosure and the description of the following embodiments are used to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the patent application scope of the present invention.

The detailed features and advantages of the present invention are described in detail in the following embodiments, and the content is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of patent application and the drawings Anyone who is familiar with the relevant art can easily understand the related purpose and advantages of the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention by any viewpoint.

The instant positioning device 1 and method of the present invention can be applied to boards in various industries, such as circuit boards in the electronics industry, and microstructure boards in the machinery industry. The following description takes circuit boards in the electronics industry as an example, but the present invention is not limited to this.

Please refer to FIGS. 1A, 1B, and 1C. FIG. 1A is a schematic diagram of the operation of an instant positioning device 1 for a plate member according to an embodiment of the present invention, and FIGS. 1B and 1C are instant positioning of a plate member according to an embodiment of the present invention A schematic diagram of the display content D of the device 1. The real-time positioning device 1 shown in FIG. 1A includes an imagefinder 11, a central processing unit 12, and a display interface 13. The imagefinder 11 is used to obtain images associated with the board B, and the central processing unit 12 is electrically connected to the The imager 11 and the display interface 13 process the aforementioned images, and the display interface 13 presents the processed images. In addition, as shown in FIG. 1A, the board database 14 that provides data to the central processing unit 12 can be set up separately and communicated with the central processing unit 12; however, the board database 14 can also be arranged inside the real-time positioning device 1. And is electrically connected to the central processing unit 12. Specifically, when the board database 14 is set separately, the real-time positioning device 1 can be implemented by a portable electronic device with a camera lens but a small storage capacity, and a cloud hard drive with a larger storage capacity as the board. Database 14. On the other hand, the real-time positioning device 1 may also have a camera lens, a display screen, and a memory with sufficient capacity to integrate the board database 14 inside. The aforementioned real-time positioning device 1 may be an electronic device such as a smart phone, a tablet computer, etc., but it is not limited thereto.

In detail, the imager 11 can be realized by a lens, and can be arranged on a side opposite to the display interface 13. The imager 11 can capture a panel image I when aligning with a panel B, and transmit the panel image I to the display interface 13 through the central processing unit 12, so that the display interface 13 presents the panel image I to the user者watching. It should be added that the above-mentioned panel image I refers to the dynamic real-time image presented by the panel B on the display interface 13 instead of a static image; therefore, the user can move the panel B or change the display interface 13 and the panel B At the same time, observe from the display interface 13 whether the board B is completely presented. In addition, the display interface 13 can receive the panel image I transmitted by the central processing unit 12 or the display content D calculated by the central processing unit 12 according to the panel image I to present the panel image I or the display content D to the user .

On the other hand, the panel database 14 is used to store a plurality of model diagrams, and each model diagram has a plurality of first characteristic values and a plurality of second characteristic values. For example, when the real-time positioning device 1 is used in the electronics industry, the model diagrams are layout diagrams (or called layout diagrams) of a plurality of panels B, and the first feature values may be panel B The positioning holes planned in the layout diagram, and the second characteristic values may be components with larger dimensions on the layout diagram of the board B (for example, integrated circuits, capacitors). As mentioned above, according to different configurations, the board database 14 can communicate with the central processing unit 12 (for example: real-time positioning device 1 with cloud hard disk), but can also be electrically connected with the central processing unit 12 (for example: The instant positioning device 1 itself has a larger capacity memory).

To illustrate the operation of the central processing unit 12, please refer to FIG. 2, and also refer to FIGS. 1A to 1C. Fig. 2 is a flowchart of an instant positioning method of a plate member according to an embodiment of the present invention. The method described in this embodiment is executed by the above-mentioned real-time positioning device 1. Please refer to step S101: Obtain the panel image I with the imagefinder 11 of the end device; the end device is the real-time positioning device 1 shown in FIG. 1A, and the panel image I is presented as shown in FIG. 1B Display interface 13. After the image capturing device 11 obtains the panel image I, please refer to step S102: the central processing unit 12 of the end device receives the panel image I and generates an identification command accordingly; wherein the identification command can be determined by the central processing unit 12 according to the panel image It is generated by the identification code on I or other features of panel B (for example, side length).

In addition, the user can input the target command according to the contact point to be detected after the panel image I is obtained by the imager 11, and then proceed to step S103: the CPU 12 receives the target command. It should be noted that since the target command is generated by the user triggering the real-time positioning device 1, there is no special restriction on the order in which the CPU 12 receives the target command and generates the identification command. After the central processing unit 12 receives the target instruction and generates the identification instruction, please refer to step S104: the central processing unit 12 searches the board database 14 for a plurality of first feature points P1 and a plurality of second features according to the identification instruction Click the model diagram of P2; the model diagram is the layout diagram of the panel B, so it needs to have the same identification code or features of the panel B. After the central processing unit 12 searches for the model diagram, please refer to step S105: use the central processing unit 12 to locate the first feature points P1 on the board image I, and locate the first feature points P1 according to the target instruction and the first feature points P1 A target point T is located on the plate image I. As shown in FIG. 1B, the first feature points P1 can be positioning holes on the plate B, and the target point T is the position of the aforementioned point to be detected on the plate image I.

After the central processing unit 12 locates the first feature points P1, please refer to step S106: use the central processing unit 12 to select one of the first feature points P1, and continue to refer to step S107: use the central processing unit 12 at least according to The target point T locates one of the second feature points P2 on the plate image I; the detailed operation process of "locating one of the second feature points P2" will be described in subsequent paragraphs. After the central processing unit 12 completes the positioning of the first feature point P1, the second feature point P2, and the target point T, please refer to step S108: the central processing unit 12 is used to generate the first feature point P1 and the positioned first feature point P1 The display content D of the two characteristic points P2 and the target point T, and the display content D only includes a part of the panel image I. As shown in FIG. 1C, the displayed content D is an enlarged panel image I. The user can accurately find the first feature point P1 according to the first relative distance L1, the second relative distance L2, and the third relative distance L3. , The relative position of the second feature point P2 and the target point T on the plate B. Finally, please refer to step S109: display the display content D on the display interface 13 of the terminal device, so that the user can find the actual position of the target point T on the panel B through the display content D.

Please refer to FIG. 1B and FIG. 1C for the presentation manner of the above-mentioned display content D. Specifically, after the central processing unit 12 completes the positioning of the first feature point P1, the second feature point P2, and the target point T on the panel image I, the central processing unit 12 starts to enlarge the panel image I so that the first The feature point P1, the second feature point P2, and the target point T can be clearly presented on the display interface 13, and the enlarged panel image I is the above-mentioned display content D. In practice, this magnification process can be dynamically presented, and the relative distance between the first feature point P1, the second feature point P2 and the target point T on the display content D (ie, the first relative distance shown in FIG. 1C) is drawn. The distance L1, the second relative distance L2, and the third relative distance L3), so that the user can more accurately know the relative position of the first feature point P1, the second feature point P2 and the target point T on the plate B from the displayed content D position. On the other hand, after the central processing unit 12 completes the positioning of the first feature point P1, the second feature point P2, and the target point T, the display content D can be directly displayed on the display interface 13 (that is, the "dynamic zoom panel image" is omitted I" this process) to reduce the amount of calculations of the central processing unit 12. Therefore, it can be understood that, regardless of the manner in which the above-mentioned enlargement process is presented, the display content D only includes a part of the panel image I.

Continuing from the above, it should be noted that when the user captures the image of the panel through the imager, it is often because the imager cannot directly face the panel to shoot, resulting in a gap between the panel image and the model image. Image deviation. For example, when the model image is rectangular or square, when the imager has an upward inclination angle relative to the plate, the image of the plate produced by the imager may appear trapezoidal or parallelogram. Therefore, the central processing unit will generate a conversion matrix by comparing the common features between the model image and the panel image (for example: area or aspect ratio) to correct the image deviation between the model image and the panel image. Correctly determine the correct position of the target point in the panel image.

In detail, please refer to FIG. 3, which is a detailed flowchart of step S104. When the central processing unit searches for the model map from the panel database according to the identification command, the central processing unit needs to determine whether the searched model map matches the panel image. If the model diagram matches the panel image, step S105 of FIG. 2 is continued. If the model diagram does not match the panel image, proceed to step S1041: the central processing unit generates another identification command based on the panel image, and searches the panel database accordingly; generally speaking, the identification command is It is preferably generated based on the identification code of the panel, but when the identification code is unclear or damaged and cannot be identified, the central processing unit will instead identify the side length or other characteristics of the panel to generate another identification command.

In detail, please refer to FIG. 4, which is a detailed flowchart of step S106 and step S107. When the central processing unit selects one of the first feature points, please refer to step S1061: select the first feature point with the shortest distance from the target point from the first feature points, and continue referring to step S1071: use the central processing unit The second feature point with the shortest distance from the target point is located among the second feature points. Here, the central processing unit uses "the closest distance to the target point" as the condition for selecting the first feature point and the second feature point, which can avoid the selection of the first feature point, the positioned second feature point and the target point. The relative distance on the board image is too large, and the accuracy of the target point position presented by the display content does not meet the needs of the user.

In addition, the method of selecting the second characteristic point in step S107 can also be performed in the method of step S1072: the central processing unit locates one of the second characteristic points on the plate image according to the target point and the selected first characteristic point. And the selected first feature point and the located second feature point are located on different sides of the reference line R passing through the target point. In the above step S1072, the reference line R is preferably perpendicular to the line between the target point and the first feature point (as shown in FIG. 1C). In detail, when the first feature point and the second feature point are located on different sides of the reference line R, the target point can be located in the area between the first feature point and the second feature point. Compared with the case where the first feature point and the second feature point are both located on the same side of the reference line R, when the target point is located between the first feature point and the second feature point, after the panel image is enlarged, the target point The position of has a higher probability of being located in the area near the center of the display content, rather than being biased toward the edge of the display content. Therefore, through this step, the user can more intuitively determine the location of the target point based on the displayed content, so as to perform subsequent measurement or debugging operations.

Please refer to FIG. 5, which is a flowchart of a method for instant positioning of a plate member according to another embodiment of the present invention. Different from the above embodiments, the method of this embodiment is executed by a cloud server with a central processing unit and a board database, and a terminal device with a viewfinder and a display interface; wherein the cloud server It is connected to the terminal device through the network. Therefore, steps S201 and S204 to S208, and the detailed flow corresponding to each step, are the same as S101 and S104 to S108 shown in FIG. 2 and the steps shown in FIG. 3 and FIG. 4, so the description will not be repeated here. . Please refer to step S202: the central processing unit of the cloud server receives the board image through the network and generates an identification command; wherein the central processing unit communicates with the imager through the network. In addition, the user can input the code of the target point into the terminal device, and the terminal device generates the target command accordingly. Therefore, step S203 is continued: the central processing unit receives the target command issued by the terminal device through the network. Here, after the central processing unit receives the end device through the network, the subsequent calculations are performed, and after the aforementioned display content is generated, step S209: the central processing unit transmits the display content to the end device through the network, and the end device The display interface of the device displays the display content.

In addition, after the CPU completes the above display content, another second feature point can be located, and the distance between the second feature point and the target point will be smaller than the distance between the first feature point and the target point. The central processing unit can adjust the display content again according to another second feature point, the original second feature point, and the target point, so that the adjusted display content can more accurately and clearly show the location of the target point.

It is worth mentioning that the embodiment shown in Figure 5 not only simplifies the configuration components of the end device, but the hardware specifications of the cloud server are also better than those of smart phones, tablets and personal computers, and can be adjusted according to practical needs. , So that the above-mentioned instant positioning method can be executed more efficiently.

In addition, it should be added that the instant positioning device and method provided by the present invention can be applied to various panels provided with various elements, and is not limited to panels, and the present invention is not limited thereto.

In summary, the present invention is to provide a real-time positioning device and method for plate components, which can accurately locate the contact point and reference point to be detected, and present the position of the contact point and reference point to the user for viewing. , It can perform the above operations with a simple and portable device, effectively reducing the cost of detecting and developing a small number of defective panels, and making the development of related products more efficient.

Although the present invention is disclosed in the foregoing embodiments, it is not intended to limit the present invention. All changes and modifications made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the attached patent scope.

1: Instant positioning device for plate components 11: Viewer 12: Central Processing Unit 13: display interface 14: Panel database B: Plate I: Panel image D: display content P1: The first feature point P2: The second feature point L1: first relative distance L2: Second relative distance L3: third relative distance R: reference line T: target point

FIG. 1A is a schematic diagram of the use of an instant positioning device for a plate member according to an embodiment of the present invention. FIG. 1B and FIG. 1C are schematic diagrams of the display content of the instant positioning device of the plate member according to an embodiment of the invention. Fig. 2 is a flowchart of an instant positioning method of a plate member according to an embodiment of the present invention. Fig. 3 is a detailed flowchart of an instant positioning method of a plate member according to an embodiment of the present invention. FIG. 4 is another detailed flowchart of the instant positioning method of the plate member according to an embodiment of the present invention. Fig. 5 is a flowchart of an instant positioning method of a plate member according to another embodiment of the present invention.

I: Panel image

D: display content

P1: The first feature point

P2: The second feature point

L1: first relative distance

L2: Second relative distance

L3: third relative distance

R: reference line

T: target point

Claims (12)

A real-time image positioning method of a panel component includes: obtaining a panel image with an imagefinder of an end device; receiving the panel image with a central processing unit of the end device and generating an identification command accordingly; The central processing unit receives a target instruction; using the central processing unit to search for a model diagram including a plurality of first feature points and a plurality of second feature points from a plate database according to the identification instruction; using the central processing unit Position the first feature points on the board image, and locate a target point on the board image according to the target instruction and the first feature points; select one of the first feature points with the central processing unit One; using the central processing unit to locate one of the second feature points on the board image at least according to the target point; using the central processing unit to generate a display content, wherein the display content includes the selected first The feature point, the located second feature point and the target point, and the display content only includes a part of the panel image; and the display content is displayed by a display interface of the terminal device. The method for real-time positioning of a panel component according to claim 1, wherein the CPU is used to search the panel database for the first feature points and the second feature points according to the identification command. After the model map, the real-time image positioning method further includes: judging by the central processing unit whether the model map matches the panel image; when the panel image matches the model map, the central processing unit is used to set Locate the first feature points on the image of the piece; and when the image of the plate does not match the model image, the central processing unit generates another identification command based on the image of the plate again, and executes another identification command according to the other identification command. Search in the board database. The method for real-time positioning of a plate component according to claim 1, wherein selecting one of the first characteristic points by the central processing unit comprises: selecting the first characteristic point with the shortest distance from the target point from the first characteristic points A characteristic point. The method for real-time positioning of a panel component according to claim 1, wherein the central processing unit locates one of the second characteristic points on the panel image at least according to the target point, and further comprises: using the central processing unit The device locates the second feature point with the shortest distance from the target point among the second feature points. The method for real-time positioning of a panel component according to claim 1, wherein the central processing unit locates one of the second characteristic points on the panel image at least according to the target point, and further comprises: the central processing unit One of the second feature points is located on the board image based on the target point and the selected first feature point, and the selected first feature point and the located second feature point are Located on different sides of a reference line passing through the target point. A real-time image positioning method for panel components includes: obtaining a panel image with an imagefinder of an end device; receiving the panel image via a network by a central processing unit of a cloud server and generating an identification Instruction; the central processing unit receives a target instruction from the end device through the network; the central processing unit searches a board database including a plurality of first feature points and a plurality of second A model diagram of feature points; use the central processing unit to locate the first feature points on the board image, and locate a target point on the board image according to the target instruction and the first feature points; The central processing unit selects one of the first characteristic points; the central processing unit locates one of the second characteristic points on the board image at least according to the target point; the central processing unit generates a display content , Wherein the display content includes the selected first feature point, the located second feature point, and the target point, and the display content only includes a part of the board image; and the CPU transmits through The network transmits the display content to the terminal device, and a display interface of the terminal device displays the display content. The method for real-time positioning of a panel component according to claim 6, wherein the central processing unit searches the panel database for the model including the first feature points and the second feature points according to the identification command The diagram includes: judging by the central processing unit whether the model image is consistent with the panel image; when the panel image is consistent with the model image, the central processing unit is used to locate the first images on the panel image Feature points; and when the board image does not match the model diagram, the central processing unit generates another recognition command based on the board image again, and searches the board database according to the other recognition command . The method for real-time positioning of a panel component according to claim 6, wherein the central processing unit locates one of the second characteristic points on the panel image at least according to the target point, and further includes: using the central processing unit The device locates the second feature point with the shortest distance from the target point among the second feature points. The method for real-time positioning of a panel component according to claim 6, wherein the central processing unit is used to locate one of the second characteristic points on the panel image at least according to the target point, and further comprises: the central processing unit One of the second feature points is located on the board image based on the target point and the selected first feature point, and the selected first feature point and the located second feature point are Located on different sides of a reference line passing through the target point. A real-time image positioning device for a panel member, comprising: an imager for capturing an image of a panel; a central processing unit electrically connected with the imager to receive the image of the panel, wherein the central processing unit The device is used to execute: generate a recognition command based on the board image; receive a target command; search for a model diagram including a plurality of first feature points and a plurality of second feature points from a board database according to the recognition command; Locate the first feature points on the board image, and locate a target point on the board image according to the target instruction and the first feature points; select one of the first feature points; at least according to The target point locates one of the second feature points on the board image; and generates a display content, wherein the display content includes the selected first feature point, the located second feature point, and the The target point, and the display content only includes a part of the board image; and a display interface, which is electrically connected to the central processing unit, and the display interface receives and displays the display content. The real-time positioning device according to claim 10, wherein the plate database is connected to the central processing unit in communication, and is used to store a plurality of model diagrams, wherein each of the model diagrams has the first characteristic values and the These second characteristic values. The real-time positioning device according to claim 10, wherein the board database is electrically connected to the central processing unit and used for storing a plurality of model diagrams, wherein each of the model diagrams has the first characteristic values and These second characteristic values.

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