3D modeling image acquisition device
By designing a low-cost 3D modeling image acquisition device including a microcontroller control circuit, an imaging module, an image processing, a WIFI module circuit and a stepper motor circuit, the existing 3D modeling image acquisition method is solved, and the effect of all-round shooting and cost reduction is achieved.
Patent Information
- Application Number
- CN202421136366.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing 3D modeling image acquisition methods are expensive, the learning curve is steep, and require expensive professional equipment, which makes it difficult for individuals or small businesses to afford.
A low-cost 3D modeling image acquisition device is designed, including a microcontroller control circuit, an imaging module, an image processing and WIFI module circuit and a stepper motor circuit. The driving circuit is controlled through the microcontroller control circuit to realize the camera module moving along the circular circle, and combined with image processing and WIFI module circuit to reduce the device cost.
It realizes all-round shooting, reduces device costs, does not require high-precision camera equipment, simplifies operational processes, lowers learning thresholds, and is suitable for individuals or small businesses.
Smart Images
Figure CN222547559U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of image acquisition, and in particular relates to a 3D modeling image acquisition device. Background Art
[0002] With the rapid development of science and technology, 3D modeling has also begun to flourish in the fields of manufacturing, healthcare, cultural heritage protection and film production, leading a digital revolution. 3D modeling has become a powerful engine to promote the development of science and technology, so engineers and researchers are constantly looking for innovative methods to improve the efficiency and accuracy of object modeling and 3D model reconstruction in a more economical way, thereby promoting further development in these fields.
[0003] The existing mainstream 3D modeling image acquisition methods have a common feature, that is, high cost. Direct modeling requires a lot of professional knowledge. For beginners or those interested, the learning curve is steep and the time cost is high. At the same time, high-performance computer equipment also increases the learning threshold. Scanning modeling and measurement modeling require expensive professional equipment, making it difficult for many individuals or small businesses to afford the cost. Utility Model Content
[0004] The utility model aims at solving the above problems and provides a low-cost 3D modeling image acquisition device.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme, which includes a single-chip microcomputer control circuit, a 5V output circuit, a 12V output circuit, a 3.3V output circuit, a camera module, an image processing and WIFI module circuit, and a driving circuit for driving the camera module to move in a circular motion. The utility model is characterized in that the control signal output port of the single-chip microcomputer control circuit is connected to the control signal input port of the driving circuit, the power input port of the 5V output circuit is connected to the power input port of the 12V output circuit, the power output port of the 5V output circuit is connected to the power input port of the 3.3V output circuit, the power output port of the 12V output circuit is connected to the power port of the driving circuit, and the signal transmission port of the camera module is connected to the signal transmission port of the image processing and WIFI module circuit.
[0006] As a preferred solution, the driving circuit of the utility model adopts a stepper motor circuit, the power input port of the 5V output circuit and the power input port of the 12V output circuit are connected to the battery through a power switch, the battery, the single-chip control circuit, the 5V output circuit, the 12V output circuit, the 3.3V output circuit, the camera module, the image processing and WIFI module circuit and the stepper motor circuit can all be arranged on the camera bracket, the camera bracket is arranged on a circular track through a pulley, the stepper motor drives the pulley to rotate, and the circular track is horizontally arranged on the platform; the camera head of the camera module is horizontally arranged and faces the center of the circular track, and the photographed object is placed at the center of the circular track.
[0007] As another preferred solution, the circular track of the utility model is arranged above the platform, a lifting mechanism or a pad is arranged at the center of the circular track, and the photographed object is arranged on the lifting mechanism or the pad.
[0008] As another preferred solution, the single-chip microcomputer control circuit of the utility model adopts an STM32 chip U1, pin 9 of U1 is respectively connected to 3.3V and one end of capacitor C2, and the other end of C2 is grounded, pins 13 to 16 of U1 are respectively connected to PA3 to PA6, pin 23 of U1 is grounded, pin 24 of U1 is respectively connected to 3.3V and one end of capacitor C3, and the other end of C3 is grounded, pin 35 of U1 is grounded, pin 36 of U1 is respectively connected to 3.3V and one end of capacitor C4, and the other end of C4 is grounded, pins 44 and 47 of U1 are grounded, and pin 48 of U1 is respectively connected to 3.3V and one end of capacitor C1, and the other end of C1 is grounded.
[0009] As another preferred solution, the 5V output circuit of the utility model adopts the LM2940 module U2, and the pin 1 of U2 is respectively connected to VCC, one end of capacitor C5, and one end of capacitor C6, and the other end of C5 is respectively connected to the other end of C6, GND, one end of capacitor C7, one end of capacitor C8, and pin 2 of U2, and the pin 3 of U2 is respectively connected to the other end of C7, the other end of C8, and 5.0V.
[0010] As another preferred solution, the 12V output circuit of the utility model adopts a BL8042 module U3, and pin 4 of U3 is respectively connected to VCC, one end of capacitor C9, one end of capacitor C10, pin 5 of U3, and one end of inductor L1 through resistor R1. The other ends of C9 and C10 are connected to GND, the other end of L1 is respectively connected to the anode of diode D1 and pin 1 of U3, the cathode of D1 is respectively connected to 12V, one end of resistor R3, and one end of capacitor C11, the other end of C11 is connected to GND, the other end of R3 is respectively connected to one end of resistor R2 and one end of resistor R4, the other end of R2 is connected to pin 3 of U3, and the other end of R4 is respectively connected to GND and pin 2 of U3.
[0011] As another preferred solution, the 3.3V output circuit of the utility model adopts the RT9013-3.3 module U4, pin 1 of U4 is respectively connected to 5V, one end of resistor R5, and one end of capacitor C12, the other end of C12 is respectively connected to GND and pin 2 of U4, the other end of R5 is connected to pin 3 of U4, pin 5 of U4 is respectively connected to one end of capacitor C13, one end of capacitor C14, and 3.3V, and the other ends of C13 and C14 are connected to GND.
[0012] As another preferred solution, the camera module described in the utility model adopts the OV2640 CAMERA BOARD module U5, pin 1 of U5 is connected to 3.3V, pins 5 to 8 of U5 are respectively connected to IO4, IO14, IO13, and IO0, pin 9 of U5 is respectively connected to one end of resistor R6 and the positive electrode of capacitor C15 through resistor R7, the other end of R6 is connected to VCC, and the negative electrode of C15 is connected to GND; pins 10 to 14 and 18 of U5 are respectively connected to GND, IO16, IO12, IO15, IO2, and GND.
[0013] Secondly, the image processing and WIFI module circuit of the utility model adopts ESP32CAM chip U6, pin 1 of U6 is respectively connected to VCC, one end of capacitor C16, and one end of capacitor C17, the other end of C16 is respectively connected to the other end of C17, GND, and pin 2 of U6, pins 3 to 8 of U6 are respectively connected to IO12, IO13, IO15, IO14, IO2, and IO4, pins 9 and 13 of U6 are connected to GND, pins 10 and 11 of U6 are connected, pins 12 and 16 of U6 are connected, and pins 14 and 15 of U6 are respectively connected to IO0 and IO16.
[0014] In addition, the stepper motor circuit of the utility model includes a ULN2003A chip U7, pins 1 to 4 of U7 are respectively connected to PA3 to PA6, pins 13 to 16 of U7 are respectively connected to D to A ports of the stepper motor M1, and the VCC port of M1 is connected to 12V.
[0015] The utility model has beneficial effects.
[0016] The driving circuit of the utility model drives the camera module to move along a circle, and the camera module shoots the object at the center of the circle, thereby realizing all-round shooting.
[0017] The utility model is provided with image processing and WIFI module circuits, and can pre-process images before transmitting them to the PC, so that the camera module does not need to use high-precision camera equipment, thereby reducing the device cost.
[0018] The utility model controls the driving circuit through the single chip control circuit, and can reliably and efficiently control the movement process of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. The protection scope of the utility model is not limited to the following descriptions.
[0020] Figure 1 This is a schematic diagram of a single-chip microcomputer control circuit of the utility model.
[0021] Figure 2 This is a circuit schematic diagram of the camera module of the utility model.
[0022] Figure 3 This is a circuit schematic diagram of the image processing and WIFI module of the utility model.
[0023] Figure 4 This is a schematic diagram of the circuit of a stepping motor of the utility model.
[0024] Figure 5 This is a schematic diagram of a 5V output circuit of the utility model.
[0025] Figure 6 This is a schematic diagram of a 12V output circuit of the utility model.
[0026] Figure 7 This is a schematic diagram of a 3.3V output circuit of the utility model. DETAILED DESCRIPTION
[0027] As shown in the figure, the utility model includes a single-chip microcomputer control circuit, a 5V output circuit, a 12V output circuit, a 3.3V output circuit, a camera module, an image processing and WIFI module circuit and a stepper motor circuit. The control signal output port of the single-chip microcomputer control circuit is connected to the control signal input port of the stepper motor circuit, the power input port of the 5V output circuit is connected to the power input port of the 12V output circuit, the power output port of the 5V output circuit is connected to the power input port of the 3.3V output circuit, the power output port of the 12V output circuit is connected to the power port of the stepper motor circuit, and the signal transmission port of the camera module is connected to the signal transmission port of the image processing and WIFI module circuit.
[0028] The single-chip microcomputer control circuit adopts the STM32 chip U1, pin 9 of U1 is respectively connected to 3.3V and one end of capacitor C2, and the other end of C2 is grounded, pins 13 to 16 of U1 are respectively connected to PA3 to PA6, pin 23 of U1 is grounded, pin 24 of U1 is respectively connected to 3.3V and one end of capacitor C3, and the other end of C3 is grounded, pin 35 of U1 is grounded, pin 36 of U1 is respectively connected to 3.3V and one end of capacitor C4, and the other end of C4 is grounded, pins 44 and 47 of U1 are grounded, pin 48 of U1 is respectively connected to 3.3V and one end of capacitor C1, and the other end of C1 is grounded.
[0029] The 5V output circuit adopts LM2940 module U2, pin 1 of U2 is respectively connected to VCC, one end of capacitor C5, and one end of capacitor C6, the other end of C5 is respectively connected to the other end of C6, GND, one end of capacitor C7, one end of capacitor C8, and pin 2 of U2, and pin 3 of U2 is respectively connected to the other end of C7, the other end of C8, and 5.0V.
[0030] The 12V output circuit adopts BL8042 module U3. Pin 4 of U3 is respectively connected to VCC, one end of capacitor C9, one end of capacitor C10, pin 5 of U3, and one end of inductor L1 through resistor R1. The other ends of C9 and C10 are connected to GND. The other end of L1 is respectively connected to the anode of diode D1 and pin 1 of U3. The cathode of D1 is respectively connected to 12V, one end of resistor R3, and one end of capacitor C11. The other end of C11 is connected to GND. The other end of R3 is respectively connected to one end of resistor R2 and one end of resistor R4. The other end of R2 is connected to pin 3 of U3. The other end of R4 is respectively connected to GND and pin 2 of U3.
[0031] The 3.3V output circuit adopts the RT9013-3.3 module U4, and the pin 1 of U4 is respectively connected to 5V, one end of the resistor R5, and one end of the capacitor C12. The other end of C12 is respectively connected to GND and the 2nd pin of U4, the other end of R5 is connected to the 3rd pin of U4, and the 5th pin of U4 is respectively connected to one end of the capacitor C13, one end of the capacitor C14, and 3.3V, and the other ends of C13 and C14 are connected to GND.
[0032] The camera module adopts OV2640 CAMERA BOARD module U5, pin 1 of U5 is connected to 3.3V, pins 5 to 8 of U5 are connected to IO4, IO14, IO13, and IO0 respectively, pin 9 of U5 is connected to one end of resistor R6 and the positive electrode of capacitor C15 through resistor R7, the other end of R6 is connected to VCC, and the negative electrode of C15 is connected to GND; pins 10 to 14 and 18 of U5 are connected to GND, IO16, IO12, IO15, IO2, and GND respectively.
[0033] The image processing and WIFI module circuit adopts ESP32CAM chip U6, pin 1 of U6 is respectively connected to VCC, one end of capacitor C16, and one end of capacitor C17, the other end of C16 is respectively connected to the other end of C17, GND, and pin 2 of U6, pins 3 to 8 of U6 are respectively connected to IO12, IO13, IO15, IO14, IO2, and IO4, pins 9 and 13 of U6 are connected to GND, pins 10 and 11 of U6 are connected, pins 12 and 16 of U6 are connected, and pins 14 and 15 of U6 are respectively connected to IO0 and IO16.
[0034] The ESP32CAM chip can use the Real-ESRGAN image super-resolution algorithm to process the images collected by the camera module to improve the image resolution. The ESP32CAM chip also has a WIFI transmission function, which transmits the processed images to the PC via WIFI. The PC performs 3D modeling based on the received images using 3D modeling software.
[0035] The stepper motor circuit includes a ULN2003A chip U7, pins 1 to 4 of U7 are respectively connected to PA3 to PA6, pins 13 to 16 of U7 are respectively connected to D to A ports of the stepper motor M1, and the VCC port of M1 is connected to 12V.
[0036] The stepper motor M1 may be a five-wire four-phase stepper motor.
[0037] The PA3~PA6 pins of the single-chip microcomputer control circuit are connected to the IN1, IN2, IN3, and IN4 pins of the driver ULN2003A of the stepper motor module. When the single-chip microcomputer transmits a command to the driver, the driver starts to drive the stepper motor to rotate at the set speed. The stepper motor and the camera module are set on the camera bracket, and the camera bracket is set on the circular track through a pulley. The circular track is set horizontally on the platform. The camera of the camera module is set horizontally and faces the center of the circular track. The object to be photographed is placed at the center of the circular track. A lifting mechanism can also be set at the center of the circular track. The object to be photographed is set on the lifting mechanism to facilitate the height adjustment of the object to be photographed. A pad can also be set at the center of the circular track instead of the lifting mechanism, and the circular track is set at a certain height above the platform.
[0038] The stepper motor drives the pulley to rotate, and the camera bracket moves the camera along the circular track at a constant speed. The camera scans the object to be photographed and obtains the material. The acquired material will be transmitted to the WIFI module ESP32, and the image material will be processed in ESP32. At the same time, since ESP32 has wireless communication function, the processed image material will be transmitted to the PC through ESP32. The D2 to D9 pins of the camera module OV2640 are connected to the IO16, IO0, IO12, IO13, IO15, IO14, IO2, and IO4 pins of the WIFI module, so that the material collected by the camera module can be transmitted to the WIFI module.
[0039] VCC is connected to the battery through the power switch. When the power switch is closed, the stepper motor starts to work, and the camera module starts to shoot automatically and continuously. The microcontroller can be set so that when the power switch is closed, the control drive circuit drives the camera bracket to rotate forward one circle first, then reverse one circle and stop, completing all-round automatic shooting.
[0040] The camera bracket, pulley and circular track can adopt the HMY camera track car structure.
[0041] The single-chip microcomputer control circuit controls the camera to shoot in a uniform surround speed through the stepper motor circuit, so that the parameters of the material collected by the camera at each angle are consistent, laying a good foundation for subsequent 3D modeling.
[0042] A battery, a single-chip microcomputer control circuit, a 5V output circuit, a 12V output circuit, a 3.3V output circuit, a camera module, an image processing and WIFI module circuit and a stepping motor circuit can all be arranged on the camera bracket.
[0043] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.
Claims
1. A 3D modeling image acquisition device, comprising a single chip control circuit, a 5V output circuit, a 12V output circuit, a 3.3V output circuit, a camera module, an image processing and WIFI module circuit, and a driving circuit for driving the camera module to move in a circular motion, characterized in that The control signal output port of the single-chip microcomputer control circuit is connected to the control signal input port of the driving circuit, the power input port of the 5V output circuit is connected to the power input port of the 12V output circuit, the power output port of the 5V output circuit is connected to the power input port of the 3.3V output circuit, the power output port of the 12V output circuit is connected to the power port of the driving circuit, and the signal transmission port of the camera module is connected to the signal transmission port of the image processing and WIFI module circuit.
2. A 3D modeling image acquisition device according to claim 1, characterized in that The driving circuit adopts a stepper motor circuit, the power input port of the 5V output circuit and the power input port of the 12V output circuit are connected to the battery through a power switch, the battery, the single-chip microcomputer control circuit, the 5V output circuit, the 12V output circuit, the 3.3V output circuit, the camera module, the image processing and WIFI module circuits and the stepper motor circuit can be arranged on the camera bracket, the camera bracket is arranged on a circular track through a pulley, the stepper motor drives the pulley to rotate, and the circular track is horizontally arranged on a platform; the camera head of the camera module is horizontally arranged and faces the center of the circular track, and the object to be photographed is placed at the center of the circular track.
3. A 3D modeling image acquisition device according to claim 2, characterized in that The circular track is arranged above the platform, a lifting mechanism or a cushion block is arranged at the center of the circular track, and the photographed object is arranged on the lifting mechanism or the cushion block.
4. A 3D modeling image acquisition device according to claim 1, characterized in that The single-chip microcomputer control circuit adopts the STM32 chip U1, pin 9 of U1 is respectively connected to 3.3V and one end of capacitor C2, and the other end of C2 is grounded, pins 13 to 16 of U1 are respectively connected to PA3 to PA6, pin 23 of U1 is grounded, pin 24 of U1 is respectively connected to 3.3V and one end of capacitor C3, and the other end of C3 is grounded, pin 35 of U1 is grounded, pin 36 of U1 is respectively connected to 3.3V and one end of capacitor C4, and the other end of C4 is grounded, pins 44 and 47 of U1 are grounded, pin 48 of U1 is respectively connected to 3.3V and one end of capacitor C1, and the other end of C1 is grounded.
5. A 3D modeling image acquisition device according to claim 1, characterized in that The 5V output circuit adopts LM2940 module U2, pin 1 of U2 is respectively connected to VCC, one end of capacitor C5, and one end of capacitor C6, the other end of C5 is respectively connected to the other end of C6, GND, one end of capacitor C7, one end of capacitor C8, and pin 2 of U2, and pin 3 of U2 is respectively connected to the other end of C7, the other end of C8, and 5.0V.
6. A 3D modeling image acquisition device according to claim 1, characterized in that The 12V output circuit adopts BL8042 module U3. Pin 4 of U3 is respectively connected to VCC, one end of capacitor C9, one end of capacitor C10, pin 5 of U3, and one end of inductor L1 through resistor R1. The other ends of C9 and C10 are connected to GND. The other end of L1 is respectively connected to the anode of diode D1 and pin 1 of U3. The cathode of D1 is respectively connected to 12V, one end of resistor R3, and one end of capacitor C11. The other end of C11 is connected to GND. The other end of R3 is respectively connected to one end of resistor R2 and one end of resistor R4. The other end of R2 is connected to pin 3 of U3. The other end of R4 is respectively connected to GND and pin 2 of U3.
7. The 3D modeling image acquisition device according to claim 1, characterized in that The 3.3V output circuit adopts the RT9013-3.3 module U4, and the pin 1 of U4 is respectively connected to 5V, one end of the resistor R5, and one end of the capacitor C12. The other end of C12 is respectively connected to GND and the 2nd pin of U4, the other end of R5 is connected to the 3rd pin of U4, and the 5th pin of U4 is respectively connected to one end of the capacitor C13, one end of the capacitor C14, and 3.3V, and the other ends of C13 and C14 are connected to GND.
8. The 3D modeling image acquisition device according to claim 1, characterized in that The camera module adopts OV2640 CAMERA BOARD module U5, pin 1 of U5 is connected to 3.3V, pins 5 to 8 of U5 are connected to IO4, IO14, IO13, and IO0 respectively, pin 9 of U5 is connected to one end of resistor R6 and the positive electrode of capacitor C15 through resistor R7, the other end of R6 is connected to VCC, and the negative electrode of C15 is connected to GND; pins 10 to 14 and 18 of U5 are connected to GND, IO16, IO12, IO15, IO2, and GND respectively.
9. A 3D modeling image acquisition device according to claim 1, characterized in that The image processing and WIFI module circuit adopts ESP32CAM chip U6, pin 1 of U6 is respectively connected to VCC, one end of capacitor C16, and one end of capacitor C17, the other end of C16 is respectively connected to the other end of C17, GND, and pin 2 of U6, pins 3 to 8 of U6 are respectively connected to IO12, IO13, IO15, IO14, IO2, and IO4, pins 9 and 13 of U6 are connected to GND, pins 10 and 11 of U6 are connected, pins 12 and 16 of U6 are connected, and pins 14 and 15 of U6 are respectively connected to IO0 and IO16.
10. A 3D modeling image acquisition device according to claim 2, characterized in that The stepper motor circuit includes a ULN2003A chip U7, pins 1 to 4 of U7 are respectively connected to PA3 to PA6, pins 13 to 16 of U7 are respectively connected to D to A ports of the stepper motor M1, and the VCC port of M1 is connected to 12V.