CN219834226U - Tracking scanning system - Google Patents

Tracking scanning system Download PDF

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Publication number
CN219834226U
CN219834226U CN202320950419.8U CN202320950419U CN219834226U CN 219834226 U CN219834226 U CN 219834226U CN 202320950419 U CN202320950419 U CN 202320950419U CN 219834226 U CN219834226 U CN 219834226U
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tracking
data
hub
gate array
scanning system
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CN202320950419.8U
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陈尚俭
张明
王江峰
郑俊
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Scantech Hangzhou Co Ltd
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Scantech Hangzhou Co Ltd
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Abstract

The present utility model relates to a tracking scanning system comprising: the system comprises an upper computer, at least one line concentration device, at least one scanning device and a plurality of tracking devices, wherein the tracking devices comprise: an image sensor, a field editable logic gate array, and a motherboard; the image sensor is connected with the field editable logic gate array for image processing; the main board is connected with the line concentration device through a network and is connected with the field editable logic gate array, the field editable logic gate array is adopted to process the collected original image, the transmission data quantity is effectively reduced, so that the data can be transmitted through the network, the transmission data of a plurality of tracking devices and scanning devices are synchronously transmitted to an upper computer for three-dimensional reconstruction, the problem that the accurate transmission data of a system cannot be guaranteed when the tracking devices are arranged in a wide scanning scene in a diffusing manner in the related art is solved, and the effect of improving the accuracy of the scanning result is realized.

Description

Tracking scanning system
Technical Field
The utility model relates to the field of machine vision, in particular to a tracking scanning system.
Background
The tracking type three-dimensional scanning system adopts an intelligent optical tracking measurement technology, can finish high-precision dynamic three-dimensional measurement, is widely applied to industries such as aerospace, automobile manufacturing, rail transit, mould manufacturing and the like, and can meet diversified requirements such as quality control, product development, reverse engineering and the like. However, as the actual scan requirements increase, the system is required to be able to perform a larger range of tracking scan operations, which would otherwise not be effective for large scan scenes.
In order to solve the above problems, in the current tracking system, a plurality of tracking devices are set to operate in cascade, so as to expand the scanning range, and because the resolution of the image collected by the front-end camera is high, the amount of data to be transmitted is large, and a 3.X version of universal serial bus (Universal Serial Bus, abbreviated as USB) interface is generally adopted to transmit the data. In a large tracking scanning scene, the tracking scanning system has poor anti-interference performance in long-distance data transmission, and is easy to cause inaccurate scanning results or can not finish corresponding tracking scanning work.
Disclosure of Invention
Accordingly, it is necessary to provide a tracking scanning system for solving the problem that when a plurality of tracking devices are installed in a wide scanning scene in a diffused manner, the system cannot be ensured to accurately transmit data.
The present utility model provides a tracking scanning system comprising: the system comprises an upper computer, at least one line concentration device, at least one scanning device and a plurality of tracking devices, wherein the tracking devices comprise: an image sensor, a field editable logic gate array, and a motherboard;
the image sensor is used for acquiring an image containing the scanning device;
the image sensor is connected with the field editable logic gate array for image processing;
the main board is connected with the line concentration device through a network and is connected with the field editable logic gate array, and the main board is used for transmitting the image data processed by the field editable logic gate array to the line concentration device;
the line concentration device is used for synchronously transmitting the transmission data of the plurality of tracking devices and the scanning device to the upper computer for three-dimensional reconstruction.
In some embodiments, when at least two image sensors of the tracking device are provided, each image sensor is correspondingly connected to one field-editable logic gate array.
In some of these embodiments, the motherboard includes a host processor, an ethernet chip, and a WiFi chip;
the main processor is connected with the field editable logic gate array;
the main processor is connected with the Ethernet chip and/or the WiFi chip.
In some embodiments, the network connection mode of the hub device and the motherboard is a wired network connection and/or a wireless network connection.
In some embodiments, the hub device comprises a router, a data conversion module and a universal serial bus hub;
the router is connected with the mainboards of the tracking devices through a network;
the data conversion module is connected with the router and the universal serial bus hub and is used for converting network data input through the router into USB data and outputting the USB data to the universal serial bus hub.
In some embodiments, the data conversion module is an ethernet to USB converter.
In some of these embodiments, the router includes a WiFi module for wireless communications.
In some of these embodiments, the scanning device is coupled to the universal serial bus hub via a universal serial bus interface.
In some embodiments, the host computer and the universal serial bus hub are connected through a universal serial bus interface.
In some embodiments, when the hub device is provided with at least two hub devices, synchronization is established between several hub devices through a synchronization line or a wireless signal.
Compared with the related art, a tracking scanning system provided in the present embodiment includes: the system comprises an upper computer, at least one line concentration device, at least one scanning device and a plurality of tracking devices, wherein the tracking devices comprise: an image sensor, a field editable logic gate array, and a motherboard; the image sensor is connected with the field editable logic gate array for image processing; the main board is connected with the line concentration device through a network and is connected with the field editable logic gate array, the field editable logic gate array is adopted to process the collected original image, the transmission data quantity is effectively reduced, so that the data can be transmitted through the network, the transmission data of a plurality of tracking devices and scanning devices are synchronously transmitted to an upper computer for three-dimensional reconstruction, the problem that the accurate transmission data of a system cannot be guaranteed when the tracking devices are arranged in a wide scanning scene in a diffusing manner in the related art is solved, and the effect of improving the accuracy of the scanning result is realized.
The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the utility model.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a block diagram of a tracking scanning system according to an embodiment of the present utility model;
FIG. 2 is a block diagram of a tracking device according to an embodiment of the present utility model;
FIG. 3 is a block diagram illustrating a hub device according to an embodiment of the present utility model;
FIG. 4 is a block diagram of a tracking scanning system according to an embodiment of the present utility model;
fig. 5 is a block diagram of a tracking scanning system according to a preferred embodiment of the present utility model.
Reference numerals: 100. an upper computer; 200. a line concentration device; 210. a router; 211. a WiFi module; 220. a data conversion module; 230. a universal serial bus hub; 300. a scanning device; 400. a tracking device; 410. an image sensor; 420. a field editable logic gate array; 430. a main board; 431. a main processor; 432. an Ethernet chip; 433. WiFi chip.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that when an element is referred to as being "mounted to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model provides a tracking scanning system, fig. 1 is a block diagram of a tracking scanning system according to an embodiment of the utility model, as shown in fig. 1, the tracking scanning system includes: the host computer 100, at least one hub device 200, at least one scanning device 300 and a plurality of tracking devices 400, wherein the tracking devices 400 comprise: an image sensor 410, a field programmable logic gate array 420, and a motherboard 430;
an image sensor 410 for acquiring an image including the scanning device 300;
the image sensor 410 is connected to a field programmable gate array 420 for image processing;
the main board 430 is connected with the line concentration device 200 through a network and is connected with the field editable logic gate array 420, and is used for transmitting the image data processed by the field editable logic gate array 420 to the line concentration device 200;
the hub device 200 is configured to synchronously transmit transmission data of the plurality of tracking devices 400 and the scanning device 300 to the host computer 100 for three-dimensional reconstruction.
Specifically, the system mainly comprises a host computer 100, at least one hub device 200, at least one scanning device 300 and a plurality of tracking devices 400. In the system, an original image including the scanning device 300 is acquired by a plurality of tracking devices 400, the original image is processed, and the processed image data is transmitted to the line concentration device 200 through a network. In the line concentrator 200, the received image data and the transmission data of the scanner 300 are collected and synchronously transmitted to the host computer 100 for data analysis and three-dimensional reconstruction, so as to generate a three-dimensional model of the scanning target.
Wherein each tracking device 400 includes at least an image sensor 410, a field programmable gate array 420, and a motherboard 430. Inside the tracking device 400, the image sensor 410 collects the original image in real time, the collected original image is transmitted to the field programmable logic gate array 420, the field programmable logic gate array 420 is utilized to process the original image, and the mark point data corresponding to the original image and the images nearby the mark point data are reserved, so that unnecessary image data are removed, and the amount of image data transmitted subsequently is effectively reduced.
It should be further noted that, the processed image data is transmitted to the motherboard 430, and the motherboard 430 is connected to the hub device 200 through a network, so that the image data processed by the field programmable gate array 420 can be transmitted to the hub device 200 by adopting a network transmission mode, thereby avoiding the restriction of the cable length and the transmission reliability thereof on the size of the scanning scene.
Through the above embodiment, the original image is processed by using the field-editable logic gate array 420 in the tracking device 400, so as to retain the mark point data corresponding to the image and the image nearby, and effectively reduce the amount of image data transmitted subsequently. Based on the lower image transmission data amount, the main board 430 and the line concentration device 200 in the tracking device 400 can transmit processed image data to the line concentration device 200 based on a wired or wireless network transmission mode, and synchronously transmit transmission data of a plurality of tracking devices 400 and scanning devices 300 to the upper computer 100 for three-dimensional reconstruction, and in the two transmission modes of a wired network and a wireless network, the transmission is performed through the wired network, so that compared with the existing optical fiber transmission, the optical fiber is easy to break, and the durability is improved; compared with the existing USB long-distance transmission, the anti-interference capability is improved, and the problem that the scanning scene is limited to be enlarged due to the cable length is directly solved by wireless network transmission. And meanwhile, the stability of data transmission can be ensured, so that the technical problem that the system cannot be ensured to accurately transmit data when a plurality of tracking devices 400 are arranged in a wide scanning scene in a diffusing manner is solved, the stability of the scanning data in a long-distance transmission path is ensured, and the accuracy of the whole scanning result is improved.
The following describes the components and their connection relationships of the tracking device 400 in detail with reference to fig. 2.
In some of these embodiments, when at least two image sensors 410 of the tracking device 400 are provided, each image sensor 410 is correspondingly connected to one field programmable logic gate array 420.
Specifically, the number of image sensors 410 inside each tracking device 400 may be set according to actual requirements. When at least two image sensors 410 of the tracking device 400 are provided, each image sensor 410 is correspondingly connected with one field-editable logic gate array 420, and each field-editable logic gate array 420 is used for image processing, so that synchronous operation of a plurality of image sensors 410 is realized, and the tracking scanning efficiency of the system is improved. And each field programmable gate array 420 is connected to a motherboard 430 within the tracking device 400 so that processed image data can be transferred to the hub device 200 through the motherboard 430.
In some of these embodiments, motherboard 430 includes a host processor 431, an ethernet chip 432, and a WiFi chip 433;
the main processor 431 is connected to the field programmable logic gate array 420;
the main processor 431 is connected to the ethernet chip 432 and/or the WiFi chip 433.
Specifically, motherboard 430 within each tracking device 400 includes a host processor 431, an ethernet chip 432, and a WiFi chip 433. The main processor 431 is connected to the field programmable gate array 420, receives the image data processed by the field programmable gate array 420, and transmits the processed image data to the hub device 200 through the ethernet chip 432 and/or the WiFi chip 433.
Further preferably, host processor 431 and ethernet chip 432 may be connected by a reduced gigabit media independent interface (Reduced Gigabit Media Independent Interface, abbreviated as RGMII); the main processor 431 and the WiFi chip 433 may be connected through a secure digital input output interface (Secure Digital Input and Output, abbreviated as SDIO), where the secure digital input output interface includes but is not limited to SDIO3.0.
In some embodiments, the hub device 200 is connected to the motherboard 430 by a wired network connection and/or a wireless network connection.
Specifically, the main board 430 includes an ethernet chip 432, so that wired network connection can be adopted between the hub device 200 and the main board 430, accordingly, a transmission mode between each tracking device 400 and the hub device 200 is wired network transmission, and the wired network transmission mode has good anti-interference performance and high reliability, is suitable for long-distance data transmission, and is beneficial to fully diffusing setting of each tracking device 400, so that a scanning scene can be enlarged; when the main board 430 further includes the WiFi chip 433, the network connection manner between the hub device 200 and the main board 430 may be wireless network connection, so that the transmission manner between each tracking device 400 and the hub device 200 is wireless network transmission, and the cable connection between the tracking device 400 and the hub device 200 is avoided while the high reliability is provided, so that the mobile tracking device 400 is more convenient and flexible; the main board 430 may also be provided with an ethernet chip 432 and a WiFi chip 433 at the same time, and has functions of wireless network transmission and wired network transmission, so that a user can select different network transmission methods according to the use requirement.
It should be further noted that, because the front-end image sensor 410 has a high resolution of the image, and needs a large amount of data to be transmitted, the conventional tracking scanning system generally needs a usb3.X interface to transmit the data. In this embodiment, when image data is transmitted through a wired network, a gigabit ethernet interface is used instead of a conventional usb3.X interface, and when image data is transmitted through a wireless network, wifi5.0 is correspondingly used to realize transmission, so that reliability of remote data transmission can be effectively improved.
The components and their connection relationships of the hub 200 will be described in detail below with reference to fig. 3.
In some of these embodiments, hub 200 includes a router 210, a data conversion module 220, and a universal serial bus hub 230;
the router 210 is connected with the main board 430 of the tracking devices 400 through a network;
the data conversion module 220 is connected to the router 210 and the USB hub 230, and is configured to convert network data input through the router 210 into USB data and output the USB data to the USB hub 230.
Specifically, within the HUB device 200, the router 210 receives the image data processed by each of the tracking devices 400, transmits the image data to the data conversion module 220 for conversion, and outputs the converted USB data to the universal serial bus HUB 230 (Universal Serial Bus HUB, abbreviated as USB HUB).
Further, the data collected by the scanning device 300 is transmitted to the usb hub 230, and the transmission data of each tracking device 400 and scanning device 300 is summarized in the usb hub 230.
In some of these embodiments, the data conversion module 220 is an ethernet to USB converter.
Specifically, the data conversion module 220 in the hub device 200 may be an ethernet-to-USB converter, which is configured to convert received image data into USB data, so that the USB data is suitable for data transmission of the USB3.X interface, and thus can be output to the USB hub 230 through the USB3.X interface.
In some of these embodiments, the router 210 includes a WiFi module 211 for wireless communication.
Specifically, the router 210 includes a WiFi module 211 for wireless communication, so that the router 210 can be connected to the motherboard 430 in the tracking device 400 through a network, based on which, data transmission is performed by adopting a network transmission mode, the processed image data in each tracking device 400 is output to the router 210, and the transmission data of each tracking device 400 is summarized in the router 210.
In some of these embodiments, the scanning device 300 is coupled to the universal serial bus hub 230 via a universal serial bus interface.
Specifically, the scanning device 300 and the usb hub 230 may be connected through a usb3.X interface, and the transmission data of the scanning device 300 may be input to the usb hub 230, and the transmission data of the tracking device 400 and the scanning device 300 may be summarized in the usb hub 230.
In some of these embodiments, the host computer 100 is connected to the universal serial bus hub 230 via a universal serial bus interface.
Specifically, the host computer 100 and the usb hub 230 may be connected through a usb3.X interface, and after the usb hub 230 sums the transmission data of the tracking device 400 and the scanning device 300, the summed data is transmitted to the host computer 100 through the usb3.X interface for three-dimensional reconstruction, so as to generate a three-dimensional model of the scanning target.
Fig. 4 is a block diagram of a tracking scanning system according to an embodiment of the utility model. Referring to fig. 4, in some embodiments, when at least two hub devices 200 are provided, synchronization is established between the hub devices 200 through a synchronization line or a wireless signal.
Specifically, the number of the hub devices 200 may be set according to actual requirements. When the line concentration devices 200 are provided with at least two, each line concentration device 200 is connected with a plurality of tracking devices 400, and time synchronization is established between the line concentration devices 200 through synchronous lines or wireless signals, so that a plurality of line concentration devices 200 which are synchronously cascaded can be arranged in a wide scanning scene, and the plurality of tracking devices 400 which are connected with the line concentration devices 200 in a network manner are fully arranged in a diffusion manner.
It should be further noted that, each hub device 200 is connected to the scanning device 300 through the usb3.X interface, and is connected to the host computer 100 through the usb3.X interface, so as to synchronously transmit the transmission data of the tracking device 400 and the scanning device 300 to the host computer 100.
The present embodiment is described and illustrated below by way of preferred embodiments.
FIG. 5 is a block diagram of a tracking scanning system according to a preferred embodiment of the present utility model, and as shown in FIG. 5, the tracking scanning system includes: the host computer 100, at least one hub device 200, at least one scanning device 300 and a plurality of tracking devices 400, wherein the tracking devices 400 comprise: an image sensor 410, a field programmable logic gate array 420, and a motherboard 430; an image sensor 410 for acquiring an image including the scanning device 300; the image sensor 410 is connected to a field programmable gate array 420 for image processing; the line concentrator 200 includes: router 210, ethernet to USB converter and universal serial bus hub 230; the router 210 is connected with the main board 430 of the tracking devices 400 through a network; the ethernet-to-USB converter is connected to the router 210 and the USB hub 230, and is configured to convert network data input through the router 210 into USB data and output the USB data to the USB hub 230; the usb hub 230 is configured to synchronously transmit the transmission data of the plurality of tracking devices 400 and the scanning device 300 to the host computer 100 for three-dimensional reconstruction.
In this embodiment, each tracking device 400 is configured to collect an image including the scanning device 300, and process the image, so as to effectively reduce the amount of image data to be transmitted; transmitting image data to the line concentration device 200 through a network to realize data summarization of a plurality of tracking devices 400; the transmission data of the plurality of tracking devices 400 and the scanning device 300 are synchronously transmitted to the upper computer 100 for three-dimensional reconstruction to generate a three-dimensional model of the scanning target.
Specifically, in the tracking device 400, the image sensor 410 collects the image including the scanning device 300, inputs the image to the field programmable gate array 420 for processing, retains the mark point data corresponding to the original image and the image nearby, removes unnecessary image data, and outputs the corresponding low data amount image to the main board 430.
Further, the router 210 is connected to the main boards 430 of the tracking devices 400 through a network, so that the processed image data is transmitted to the router 210 in the hub device 200 by adopting a wired network transmission and/or a wireless network transmission mode, and the router 210 is utilized to collect the data of the tracking devices 400; the network data received by the router 210 is input to the ethernet-to-USB converter, and converted into corresponding USB data by the ethernet-to-USB converter, and transmitted to the USB hub 230; the usb hub 230 collects the transmission data of the tracking devices 400 and the scanning devices 300 and synchronously transmits the data to the host computer 100.
In the tracking scanning system of this embodiment, a field-editable logic gate array 420 for image processing is disposed in each tracking device 400, so as to effectively reduce the amount of image data to be transmitted. Based on this, the connection mode of the tracking device 400 and the hub device 200 is optimized, and network connection is adopted to replace the traditional usb3.X interface connection, so that a plurality of tracking devices 400 can be arranged in a wide scanning scene in a diffusion manner while ensuring accurate data transmission of a system, thereby improving the reliability of remote data transmission and the flexibility of arranging the tracking devices 400.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A tracking scanning system, the tracking scanning system comprising: the system comprises an upper computer, at least one line concentration device, at least one scanning device and a plurality of tracking devices, wherein the tracking devices comprise: an image sensor, a field editable logic gate array, and a motherboard;
the image sensor is used for acquiring an image containing the scanning device;
the image sensor is connected with the field editable logic gate array for image processing;
the main board is connected with the line concentration device through a network and is connected with the field editable logic gate array, and the main board is used for transmitting the image data processed by the field editable logic gate array to the line concentration device;
the line concentration device is used for synchronously transmitting the transmission data of the plurality of tracking devices and the scanning device to the upper computer for three-dimensional reconstruction.
2. The tracking scanning system of claim 1, wherein when at least two of said image sensors of said tracking device are provided, each of said image sensors is correspondingly coupled to one of said field programmable logic gate arrays.
3. The tracking scanning system of claim 1, wherein the motherboard comprises a main processor, the motherboard further comprising an ethernet chip and/or a WiFi chip;
the main processor is connected with the field editable logic gate array;
the main processor is connected with the Ethernet chip and/or the WiFi chip.
4. The tracking scanning system according to claim 1, wherein the network connection mode of the hub device and the main board is a wired network connection and/or a wireless network connection.
5. The tracking scanning system of claim 1, wherein said hub means comprises a router, a data conversion module and a universal serial bus hub;
the router is connected with the mainboards of the tracking devices through a network;
the data conversion module is connected with the router and the universal serial bus hub and is used for converting network data input through the router into USB data and outputting the USB data to the universal serial bus hub.
6. The tracking scanning system of claim 5, wherein said data conversion module is an ethernet-to-USB converter.
7. The tracking scanning system of claim 5, wherein said router comprises a WiFi module for wireless communications.
8. The tracking scanning system of claim 5, wherein said scanning device is coupled to said universal serial bus hub via a universal serial bus interface.
9. The tracking scanning system of claim 5, wherein said host computer and said universal serial bus hub are connected via a universal serial bus interface.
10. The tracking scanning system of claim 1, wherein when said hub is provided with at least two, synchronization is established between a plurality of said hubs by a synchronization line or a wireless signal.
CN202320950419.8U 2023-04-20 2023-04-20 Tracking scanning system Active CN219834226U (en)

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Application Number Priority Date Filing Date Title
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Publications (1)

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CN219834226U true CN219834226U (en) 2023-10-13

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