Three-dimensional reconstruction data acquisition device

Abstract

The utility model discloses a three-dimensional reconstruction data acquisition device, and relates to the field of data acquisition. The system comprises an industrial-grade CCD camera, a laser scanner, a camera driving module, a light source driving module, a clock alignment circuit, an annular guide rail, an image acquisition module, a single-chip microcomputer control unit and an upper computer. The industrial-grade CCD camera and the laser scanner are connected to the single-chip microcomputer control unit through the image acquisition module. The annular guide rail is divided into an inner guide rail and an outer guide rail which are concentrically distributed; the industrial-grade CCD camera is arranged on the inner guide rail and is connected with the camera driving module, and the laser scanner is arranged on the outer guide rail and is connected with the light source driving module; the camera driving module and the light source driving module are connected with the single-chip microcomputer control unit. The output of the single-chip microcomputer control unit is connected with the upper computer. The clock alignment circuit is connected with the single-chip microcomputer control unit, and the phase difference between the camera driving module and the light source driving module is eliminated. According to the utility model, the three-dimensional data of the object can be efficiently, accurately and conveniently obtained.

Description

Technical Field

[0001] This utility model relates to the field of data acquisition, and more specifically to a three-dimensional reconstruction data acquisition device. Background Technology

[0002] Accurate 3D reconstruction of objects is of paramount importance and has a wide range of applications in today's scientific research, industrial manufacturing, medical diagnosis, cultural heritage preservation, virtual reality, augmented reality, and many other fields.

[0003] Traditional methods for acquiring object shapes often have many limitations. For example, manual measurement is extremely inefficient and struggles to obtain comprehensive and accurate information about complex shapes. Its measurement accuracy is also greatly affected by human factors, making it unsuitable for large-scale and high-precision 3D reconstruction tasks. While some early simple 2D image acquisition techniques, such as ordinary camera photography, can quickly acquire planar images of objects, these images only reflect the object's 2D projection from a specific viewpoint, losing depth information. They cannot be directly used to construct a complete and accurate 3D model. Complex multi-view geometric algorithms are needed to deduce the object's 3D structure from multiple 2D images from different viewpoints. This process is computationally complex, susceptible to image quality and viewpoint selection, and often yields unsatisfactory reconstruction results for objects with little texture or complex shapes.

[0004] In summary, existing 3D reconstruction data acquisition technologies struggle to simultaneously meet the demands for high precision, high speed, low cost, and adaptability to complex objects. Therefore, there is an urgent need for a new 3D reconstruction data acquisition device capable of overcoming any of these technical shortcomings and acquiring 3D data of objects more efficiently, accurately, and conveniently. This would satisfy the growing application demands for 3D reconstruction technology across various fields and drive further development in related industries and scientific research. Utility Model Content

[0005] In view of this, the present invention provides a three-dimensional reconstruction data acquisition device to obtain three-dimensional data of an object efficiently, accurately and conveniently.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A three-dimensional reconstruction data acquisition device includes: an industrial-grade CCD camera, a laser scanner, a camera driving module, a light source driving module, a clock alignment circuit, a ring rail, an image acquisition module, a microcontroller control unit, and a host computer.

[0008] The industrial-grade CCD camera and the laser scanner are both connected to the microcontroller control unit via an image acquisition module.

[0009] The annular guide rail is divided into an inner guide rail and an outer guide rail, which are arranged in concentric circles. The industrial-grade CCD camera is installed on the inner guide rail and connected to the camera driving module. The laser scanner is installed on the outer guide rail and connected to the light source driving module. Both the camera driving module and the light source driving module are connected to the microcontroller control unit. The output of the microcontroller control unit is connected to a host computer to display the acquisition status of the 3D reconstruction data.

[0010] The clock alignment circuit is connected to the microcontroller control unit and is used to eliminate the phase difference between the camera driver module and the light source driver module.

[0011] Optionally, the inner and outer guide rails move along the central axis of the annular guide rail based on the first and second lifting drive units, respectively, for omnidirectional acquisition of three-dimensional reconstruction data; the first and second lifting drive units are both connected to the microcontroller control unit, which controls the first and second lifting drive units according to the acquisition of three-dimensional reconstruction data.

[0012] Optionally, the clock alignment circuit includes a first clock circuit, a second clock circuit, a third clock circuit, and a fourth clock circuit connected in parallel and having the same structure; the first clock circuit is connected to the light source driving module, the second clock circuit is connected to the camera driving module, the third clock circuit is connected to the first lifting driving unit, and the fourth clock circuit is connected to the second lifting driving unit.

[0013] Optionally, the specific structure of the first clock circuit is as follows: one end of the crystal oscillator is connected to the input terminal of the inverter, and the other end is connected to the output terminal of the inverter, forming a closed oscillation circuit; capacitors R1 and R2 are respectively connected between the two ends of the crystal oscillator and ground; a clock signal is led out from the output terminal of the inverter and connected to the clock pin of the microcontroller control unit.

[0014] Optionally, the image acquisition module is equipped with a Bluetooth signal generator, which is used to transmit 3D reconstruction data. The microcontroller control unit is equipped with a Bluetooth signal receiver interface for connecting to a Bluetooth signal receiver to receive the Bluetooth signal, i.e., the 3D reconstruction data transmitted by the Bluetooth signal generator.

[0015] Optionally, the industrial-grade CCD camera has adjustable focal length, aperture, and shutter speed to adapt to different lighting conditions and object size and detail requirements.

[0016] Optionally, it also includes an object support module, which is marked with an object position identifier. The object position identifier is used to place a target reference object. A weight sensor is set at the object position identifier. The weight sensor is connected to a pulse signal generator. The pulse signal generator is connected to the input interface of the microcontroller control unit. The microcontroller control unit controls the camera drive module and the light source drive module according to the signal generated by the pulse signal generator.

[0017] Optionally, the industrial-grade CCD camera is also connected to a supplementary lighting unit, which is connected to a clock alignment unit to achieve synchronization between the supplementary lighting source and the industrial-grade CCD camera.

[0018] Optionally, a second clock signal is obtained based on the first clock signal received by the industrial-grade CCD camera, and the second clock signal is provided to the fill light unit and the camera drive module respectively to achieve synchronization between the fill light source and the scanner.

[0019] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a three-dimensional reconstruction data acquisition device, which has the following beneficial effects:

[0020] 1. The image acquisition module is responsible for transmitting data acquired by the industrial-grade CCD camera and laser scanner to the microcontroller control unit. This module features high data throughput and low latency, ensuring the real-time performance and integrity of the data.

[0021] 2. The microcontroller control unit, as the core of data processing, can efficiently process the data transmitted by the image acquisition module. Through connection with the host computer, the microcontroller control unit can transmit the processed data to the host computer in real time for display and storage.

[0022] 3. The clock alignment circuit eliminates the phase difference between the camera driver module and the light source driver module, ensuring their synchronization during data acquisition. This helps reduce data errors caused by asynchrony and improves the accuracy and reliability of 3D reconstruction.

[0023] 4. The circular guide rail consists of an inner guide rail and an outer guide rail, arranged in concentric circles. This design allows industrial-grade CCD cameras and laser scanners to move in a circular motion on the same plane, thereby achieving omnidirectional data acquisition of objects.

[0024] 5. Precise control of the camera drive module and light source drive module via the microcontroller control unit enables precise positioning and movement of industrial-grade CCD cameras and laser scanners on a circular guide rail. This helps reduce errors and repetitive work during data acquisition, improving acquisition efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram illustrating the working principle of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of this utility model;

[0028] Among them, 1-industrial grade CCD camera, 2-laser scanner, 3-outer guide rail, 4-inner guide rail. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model discloses a three-dimensional reconstruction data acquisition device, such as... Figure 1 and Figure 2 As shown, it includes: an industrial-grade CCD camera 1, a laser scanner 2, a camera driver module, a light source driver module, a clock alignment circuit, a ring rail, an image acquisition module, a microcontroller control unit, and a host computer.

[0031] The industrial-grade CCD camera and the laser scanner are both connected to the microcontroller control unit via an image acquisition module.

[0032] The annular guide rail is divided into an inner guide rail 4 and an outer guide rail 3, which are arranged in concentric circles. The industrial-grade CCD camera is installed on the inner guide rail and connected to the camera driving module. The laser scanner is installed on the outer guide rail and connected to the light source driving module. Both the camera driving module and the light source driving module are connected to a microcontroller control unit. The output of the microcontroller control unit is connected to a host computer to display the acquisition status of the 3D reconstruction data.

[0033] The clock alignment circuit is connected to the microcontroller control unit and is used to eliminate the phase difference between the camera driver module and the light source driver module.

[0034] Furthermore, the industrial-grade CCD camera and laser scanner are staggered to avoid mutual obstruction, and the lifting of the inner and outer guide rails is also staggered, also to avoid mutual obstruction.

[0035] Furthermore, the inner and outer guide rails move along the central axis of the annular guide rail based on the first and second lifting drive units, respectively, for omnidirectional acquisition of three-dimensional reconstruction data; the first and second lifting drive units are both connected to the microcontroller control unit, which controls the first and second lifting drive units according to the acquisition of three-dimensional reconstruction data.

[0036] Furthermore, the clock alignment circuit includes a first clock circuit, a second clock circuit, a third clock circuit, and a fourth clock circuit connected in parallel and having the same structure; the first clock circuit is connected to the light source driving module, the second clock circuit is connected to the camera driving module, the third clock circuit is connected to the first lifting driving unit, and the fourth clock circuit is connected to the second lifting driving unit.

[0037] All four clock circuits receive clock signals from a common clock source (such as a crystal oscillator or an external clock signal). This clock source generates a clock signal with a stable frequency and phase, ensuring that the four clock circuits remain synchronized in time. The amplified clock signals are then connected to the clock inputs of the light source driver module, camera driver module, first lift-up driver unit, and second lift-up driver unit, respectively. Because these clock circuits are connected in parallel, the clock signals they provide should be in phase, thus eliminating phase differences between the different driver modules.

[0038] Furthermore, the clock circuit mainly consists of a clock source (such as a crystal or crystal oscillator) and a clock drive circuit. The crystal and crystal oscillator are key components for generating the clock signal, while the clock drive circuit is responsible for distributing the clock signal to various parts of the system. The specific structure of the first clock circuit is as follows: one end of the crystal oscillator is connected to the input of the inverter, and the other end is connected to the output of the inverter, forming a closed oscillation loop; capacitors R1 and R2 are respectively connected between the two ends of the crystal oscillator and ground; the clock signal is led out from the output of the inverter and connected to the clock pin of the microcontroller control unit.

[0039] Furthermore, the image acquisition module is equipped with a Bluetooth signal generator, which is used to transmit 3D reconstruction data. The microcontroller control unit is equipped with a Bluetooth signal receiver interface, which is used to connect to a Bluetooth signal receiver to receive the Bluetooth signal, i.e., the 3D reconstruction data transmitted by the Bluetooth signal generator.

[0040] Furthermore, the industrial-grade CCD camera has adjustable focal length, aperture, and shutter speed to adapt to different lighting conditions and object size and detail requirements.

[0041] Furthermore, it also includes an object support module, which is marked with an object position identifier. The object position identifier is used to place a target reference object. A weight sensor is set at the object position identifier. The weight sensor is connected to a pulse signal generator. The pulse signal generator is connected to the input interface of the microcontroller control unit. The microcontroller control unit controls the camera drive module and the light source drive module according to the signal generated by the pulse signal generator.

[0042] Furthermore, the industrial-grade CCD camera is also connected to a supplementary lighting unit, which is connected to a clock alignment unit to achieve synchronization between the supplementary lighting source and the industrial-grade CCD camera.

[0043] Furthermore, a second clock signal is obtained based on the first clock signal received by the industrial-grade CCD camera, and the second clock signal is provided to the fill light unit and the camera drive module respectively to achieve synchronization between the fill light source and the scanner.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-dimensional reconstruction data acquisition device, characterized in that, include: Industrial-grade CCD cameras, laser scanners, camera driver modules, light source driver modules, clock alignment circuits, circular guide rails, image acquisition modules, microcontroller control units, and host computers; The industrial-grade CCD camera and the laser scanner are both connected to the microcontroller control unit via an image acquisition module. The annular guide rail is divided into an inner guide rail and an outer guide rail, which are arranged in concentric circles. The industrial-grade CCD camera is installed on the inner guide rail and connected to the camera driving module. The laser scanner is installed on the outer guide rail and connected to the light source driving module. Both the camera driving module and the light source driving module are connected to the microcontroller control unit. The output of the microcontroller control unit is connected to a host computer to display the acquisition status of the 3D reconstruction data. The clock alignment circuit is connected to the microcontroller control unit and is used to eliminate the phase difference between the camera driver module and the light source driver module.

2. The three-dimensional reconstruction data acquisition device according to claim 1, characterized in that, The inner and outer guide rails move along the central axis of the annular guide rail based on the first and second lifting drive units, respectively, for omnidirectional acquisition of three-dimensional reconstruction data; the first and second lifting drive units are both connected to the microcontroller control unit, which controls the first and second lifting drive units according to the acquisition of three-dimensional reconstruction data.

3. The three-dimensional reconstruction data acquisition device according to claim 2, characterized in that, The clock alignment circuit includes a first clock circuit, a second clock circuit, a third clock circuit, and a fourth clock circuit connected in parallel and having the same structure; the first clock circuit is connected to the light source driving module, the second clock circuit is connected to the camera driving module, the third clock circuit is connected to the first lifting driving unit, and the fourth clock circuit is connected to the second lifting driving unit.

4. The three-dimensional reconstruction data acquisition device according to claim 3, characterized in that, The specific structure of the first clock circuit is as follows: one end of the crystal oscillator is connected to the input terminal of the inverter, and the other end is connected to the output terminal of the inverter, forming a closed oscillation circuit; capacitors R1 and R2 are respectively connected between the two ends of the crystal oscillator and ground; the clock signal is led out from the output terminal of the inverter and connected to the clock pin of the microcontroller control unit.

5. A three-dimensional reconstruction data acquisition device according to claim 1, characterized in that, The image acquisition module is equipped with a Bluetooth signal generator, which is used to transmit 3D reconstruction data. The microcontroller control unit is equipped with a Bluetooth signal receiver interface, which is used to connect to a Bluetooth signal receiver to receive the Bluetooth signal, i.e., the 3D reconstruction data transmitted by the Bluetooth signal generator.

6. A three-dimensional reconstruction data acquisition device according to claim 1, characterized in that, The industrial-grade CCD camera features adjustable focal length, aperture, and shutter speed to adapt to different lighting conditions and object size and detail requirements.

7. A three-dimensional reconstruction data acquisition device according to claim 1, characterized in that, It also includes an object support module, which is marked with an object position identifier. The object position identifier is used to place a target reference object. A weight sensor is set at the object position identifier. The weight sensor is connected to a pulse signal generator. The pulse signal generator is connected to the input interface of the microcontroller control unit. The microcontroller control unit controls the camera drive module and the light source drive module according to the signal generated by the pulse signal generator.

8. A three-dimensional reconstruction data acquisition device according to claim 1, characterized in that, The industrial-grade CCD camera is also connected to a supplementary lighting unit, which is connected to a clock alignment unit to achieve synchronization between the supplementary lighting source and the industrial-grade CCD camera.

9. A three-dimensional reconstruction data acquisition device according to claim 8, characterized in that, A second clock signal is obtained based on the first clock signal received by the industrial-grade CCD camera, and the second clock signal is provided to the fill light unit and the camera drive module respectively to achieve synchronization between the fill light source and the scanner.

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