Automatic adjustment image acquisition device

Abstract

The utility model provides an automatically-adjusted image acquisition device, which comprises a casing, at least one laser distance measuring sensor and a servo motor are mounted in the casing, the servo motor is in driving connection with a lifting transmission assembly, an industrial area-array camera is fixedly mounted on a lifting platform of the lifting transmission assembly, and the industrial area-array camera is in driving connection with the lifting transmission assembly. The side wall of the housing is provided with a distance measuring window corresponding to the laser distance measuring sensor, and is provided with a perspective window corresponding to the industrial area-array camera. Through cooperative work of the laser distance measuring sensor and the servo motor control system, the position of the industrial area-array camera can be dynamically adjusted according to the distance, measured in real time, between the target object and the device. Compared with a traditional fixed camera, the device can adapt to changes of the size and the position of a target object, and therefore it is guaranteed that a detected image is clear and accurate.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a rapid detection device for small targets, particularly an automatically adjustable image acquisition device. Background Technology

[0002] In industrial production and quality control, small target inspection is a crucial step in ensuring product quality and production efficiency. However, traditional small target inspection methods have several limitations. First, traditional methods typically use a fixed camera position for image acquisition. This method cannot adjust the camera's height and position in real time, resulting in insufficient image acquisition accuracy or even blurring when the distance or size of the target object changes. Second, traditional inspection methods have a low level of automation, failing to meet the growing demand for efficient and accurate inspection in industrial production. Furthermore, the fixed camera position method is often inflexible when dealing with diverse target object sizes and locations, leading to a significant decrease in inspection efficiency and accuracy. These problems not only affect production efficiency but may also lead to inconsistencies in product quality.

[0003] Therefore, in order to solve the problems of insufficient image acquisition accuracy and low automation level in traditional small target detection, there is an urgent need for a new type of detection device that can adjust the height of the image acquisition device in real time, adapt to changes in the size and position of the target object, and significantly improve detection accuracy and efficiency. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an automatically adjusting image acquisition device.

[0005] The objective of this utility model can be achieved through the following technical solution: an automatically adjustable image acquisition device, comprising a housing, wherein at least one laser rangefinder sensor is installed inside the housing, and a servo motor is also installed inside the housing. The servo motor drives and connects to a lifting transmission assembly. An industrial area array camera is fixedly mounted on the lifting platform of the lifting transmission assembly. A rangefinder window is opened on the side wall of the housing corresponding to the laser rangefinder sensor, and a perspective window is set on the side wall of the housing corresponding to the industrial area array camera.

[0006] In the aforementioned automatically adjusted image acquisition device, there are two laser rangefinders, specifically a first laser rangefinder and a second laser rangefinder. The first laser rangefinder is located at one corner of the inner wall of one side of the housing, and the second laser rangefinder is located at another corner of the inner wall of the same side of the housing. The industrial area array camera is located between the first laser rangefinder and the second laser rangefinder.

[0007] In the aforementioned automatically adjustable image acquisition device, a controller is installed inside the housing. The first laser rangefinder and the second laser rangefinder are connected to the controller via wires, and the controller is connected to the servo motor via wires.

[0008] In the aforementioned automatically adjusted image acquisition device, the lifting transmission assembly includes a lead screw, the shaft of the servo motor is fixedly connected to the lead screw, a nut is sleeved on the lead screw to form a threaded engagement connection, a guide rail is arranged parallel to the side of the lead screw, a slider is fixedly connected to the nut, the slider engages with the guide rail to form a sliding connection, a strip-shaped shell is provided around the lead screw and the guide rail, a guide groove parallel to the guide rail is opened on the strip-shaped shell, a support rod is fixedly connected to the slider, and the end of the support rod extending out of the guide groove is fixedly connected to the lifting platform.

[0009] In the aforementioned automatically adjustable image acquisition device, the housing includes a rectangular housing, a mounting port is provided on the rear side of the rectangular housing, a cover is provided on the mounting port, one side of the cover is hinged to one side of the mounting port, and the other side of the cover forms an opening and closing fit with the mounting port.

[0010] In the aforementioned automatically adjustable image acquisition device, the ranging window and the perspective window are opened on the front side wall of the rectangular housing, and a transparent plate is covered on the perspective window. The transparent plate is fixed to the front side wall by screws.

[0011] In the aforementioned automatically adjustable image acquisition device, a fixed bracket is provided at the bottom of the rectangular housing, and a mounting hole is provided on the fixed bracket, through which a screw is inserted.

[0012] In the aforementioned automatically adjusting image acquisition device, a wiring hole is provided at the bottom of the rectangular housing, and a sealing plug is provided on the wiring hole.

[0013] In the aforementioned automatically adjustable image acquisition device, the housing is a metal shell, and the outer surface of the metal shell is coated with a waterproof and anti-corrosion coating.

[0014] Compared with existing technologies, this automatically adjusting image acquisition device has the following advantages:

[0015] 1. High-precision dynamic adjustment capability: The collaborative operation of the laser rangefinder sensor and servo motor control system enables dynamic adjustment of the industrial area array camera position based on the real-time measured distance between the target object and the device. Compared to traditional fixed cameras, this device can adapt to changes in the size and position of the target object, thereby ensuring clear and accurate detection images.

[0016] 2. Excellent environmental adaptability and reliability: The metal casing of the device is designed to be dustproof, waterproof and corrosion resistant, ensuring long-term stable operation of the equipment in harsh industrial environments. This makes the device more reliable and adaptable in industrial automation.

[0017] 3. Intelligent Upgrade and Multi-Scenario Application Expansion: This device can promote the development of intelligent manufacturing through deep integration with computer vision and artificial intelligence technologies. When combined with an AI vision system, it can perform more complex tasks such as image recognition, defect detection, and target classification. It automatically adjusts the camera position to adapt to changes in the size and distance of target objects, adapts to different production environments, reduces manual intervention, and ensures the accuracy and stability of quality control.

[0018] In summary, this utility model effectively solves the technical pain points of low automation, poor environmental adaptability, and insufficient detection efficiency in small target industrial inspection through an innovative laser ranging-servo motor coordinated adjustment mechanism, a highly reliable environmental adaptability design, and an intelligent upgrade path. It provides a high-precision, highly robust, and easily integrated image acquisition solution for fields such as intelligent manufacturing and precision manufacturing, and has significant technological advancements and market application value. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the automatic adjustment image acquisition device.

[0020] Figure 2 This is a diagram showing the internal structure of the automatically adjusting image acquisition device when the cover is open.

[0021] Figure 3 This is a three-dimensional structural diagram of the internal structure of this automatically adjusting image acquisition device.

[0022] In the diagram, 1. Housing; 2. First laser rangefinder; 3. Second laser rangefinder; 4. Servo motor; 5. Lifting platform; 6. Industrial area scan camera; 7. Controller; 8. Rangefinder window; 9. Transparent plate; 10. Box cover; 11. Fixed bracket; 12. Sealing plug. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figures 1 to 3As shown, this automatically adjusting image acquisition device includes a housing 1, inside which at least one laser rangefinder sensor is installed. A servo motor 4 is also installed inside the housing 1. The servo motor 4 drives and connects to a lifting transmission assembly. An industrial area array camera 6 is fixedly mounted on the lifting platform 5 of the lifting transmission assembly. A rangefinder window 8 is opened on the side wall of the housing 1 corresponding to the laser rangefinder sensor, and a perspective window is set on the side wall of the housing 1 corresponding to the industrial area array camera 6.

[0025] like Figure 2 and 3 As shown, preferably, there are two laser rangefinders, specifically a first laser rangefinder 2 and a second laser rangefinder 3. The first laser rangefinder 2 is located at one corner of the inner wall of one side of the housing 1, and the second laser rangefinder 3 is located at the other corner of the inner wall of the same side of the housing 1. The industrial area scan camera 6 is positioned between the first laser rangefinder 2 and the second laser rangefinder 3. By placing the two laser rangefinders on both sides of the industrial area scan camera 6, a distance measurement intersection point is formed from two different angles, thereby improving the accuracy of distance measurement for small target objects.

[0026] like Figure 2 and 3 As shown, preferably, a controller 7 is installed inside the housing 1. The first laser rangefinder 2 and the second laser rangefinder 3 are connected to the controller 7 via wires, and the controller 7 is connected to the servo motor 4 via wires. The first laser rangefinder 2 and the second laser rangefinder 3 measure the distance between the target object and the device in real time and send the distance values ​​to the controller 7. The controller 7 drives the servo motor 4 based on these measurement data to automatically adjust the height of the industrial area scan camera 6, ensuring the accuracy of image acquisition.

[0027] Preferably, the lifting transmission assembly includes a lead screw, the shaft of the servo motor 4 is fixedly connected to the lead screw, a nut is sleeved on the lead screw to form a threaded engagement connection, a guide rail is arranged parallel to the side of the lead screw, a slider is fixedly connected to the nut, the slider is engaged with the guide rail to form a sliding connection, a strip shell is provided around the lead screw and guide rail, a guide groove parallel to the guide rail is opened on the strip shell, a support rod is fixedly connected to the slider, and the end of the support rod extending out of the guide groove is fixedly connected to the lifting platform 5.

[0028] The servo motor 4 drives the lead screw to rotate, which in turn drives the nut to move the slider along the guide rail through threaded transmission, simultaneously moving the lifting platform 5 up and down along the guide groove. The structure and principle of this servo motor 4-driven lifting transmission assembly are existing technologies, so detailed descriptions with illustrations are not provided here.

[0029] like Figure 1As shown, preferably, the housing 1 includes a rectangular shell with a mounting opening on its rear side. A cover 10 is provided on the mounting opening, with one side of the cover 10 hinged to one side of the mounting opening, and the other side of the cover 10 forming an opening-closing fit with the mounting opening. Various components are installed into the housing 1 through the mounting opening, which also allows for viewing of the components inside the housing 1 for maintenance. The cover 10 closes the mounting opening, creating a sealed internal environment and protecting the various components.

[0030] Preferably, a ranging window 8 and a viewing window are provided on the front side wall of the rectangular housing. A transparent plate 9 is placed over the viewing window and fixed to the front side wall with screws. Both the ranging window 8 and the viewing window are circular holes, with the ranging window 8 having a smaller diameter and the viewing window having a larger diameter. The ranging window 8 is used to ensure that the laser rangefinder does not obstruct the laser emitted by the laser rangefinder, and the transparent plate 9 ensures that the field of view of the industrial area array camera 6 is unobstructed.

[0031] Preferably, a fixing bracket 11 is provided at the bottom of the rectangular housing, and mounting holes are provided on the fixing bracket 11 for screws to be inserted. The fixing bracket 11 is specifically a flat plate, with two flat plates symmetrically arranged on both sides of the rectangular housing, and the entire housing 1 is fixed to the mounting surface by screws.

[0032] Preferably, a wiring hole is provided at the bottom of the rectangular housing, and a sealing plug 12 is provided on the wiring hole. There are two wiring holes, which are used for the lead-out of external power supply and signal lines, and the wiring holes are sealed with sealing plugs 12.

[0033] Preferably, the housing 1 is a metal shell, and the outer surface of the metal shell is coated with a waterproof and anti-corrosion coating. The cover 10 and the waterproof and anti-corrosion coating enable the housing 1 to achieve dustproof, waterproof and anti-corrosion functions, thus protecting the equipment.

[0034] The advantages of this device are as follows:

[0035] Collaborative operation of the laser rangefinder and image acquisition device: This device employs two laser rangefinders located at the front, emitting lasers through the laser rangefinder radar window and measuring the distance between the target object and the device in real time. The range data from both sensors are transmitted to the controller 7. Based on the measured distance to the target object, the controller 7 automatically calculates and adjusts the relative height of the industrial area array camera 6. Specifically, the controller 7 precisely adjusts the position of the Z-axis positioning platform by controlling the servo motor 4, ensuring the camera is always at the optimal height, thereby achieving clear and rapid detection of small targets.

[0036] The Z-axis positioning platform and servo motor 4 have adjustable functions: The camera is mounted on the Z-axis positioning platform, which is fixed with screws and connected to the servo motor 4. The controller 7 dynamically adjusts the platform's height based on data from the laser rangefinder. To precisely control the platform's movement, the servo motor 4 uses a high-precision position feedback device to ensure the accuracy of each adjustment and avoid blurry or misaligned image acquisition due to improper height. The platform's Z-axis adjustment can respond to distance changes in a very short time, enabling fast and accurate image acquisition of small targets.

[0037] Coordination between the camera and the laser rangefinder: The coordination between the industrial area array camera 6 and the laser rangefinder is crucial. The camera is mounted on the Z-axis positioning platform and collects image data through a circular perspective window. Simultaneously, two laser rangefinders emit and receive lasers through a laser rangefinder radar window, ensuring ranging accuracy. Based on real-time adjustments to height and ranging data, the camera captures clear and precise image information, meeting the needs for rapid detection and accurate identification of small targets in industrial production processes.

[0038] Power Supply and Communication Design of the Device: The communication management of this device includes the transmission of power and signals, ensuring that each component can operate efficiently and stably. The laser ranging device is powered by controller 7, which not only powers the laser ranging sensor but also receives laser ranging data. This data is transmitted to controller 7 via a serial port. Servo controller 7 sends the data to the host computer, which then outputs control signals to controller 7 based on the received ranging data, thereby driving servo motor 4. This process enables remote monitoring and precise control of the equipment. The device has two wiring holes for power lines and communication signal lines, which are sealed with end caps 12 to ensure the device's airtightness and safety.

[0039] Protective Design and Reliability Assurance: The enclosure of this device is made of aluminum alloy, ensuring long-term stable operation in harsh industrial environments. A sealable cover at the rear of the enclosure effectively prevents the intrusion of dust, moisture, and corrosive gases, enhancing the device's dustproof, waterproof, and corrosion-resistant capabilities. Furthermore, all internal components are encased in a metal shell, avoiding direct impact from the external environment and extending the device's service life.

[0040] The device integrates automatic adjustment and online monitoring: It automatically adjusts the camera height to respond in real-time to changes in the distance to target objects, adapting to the detection needs of targets of varying sizes. The device operates entirely based on laser ranging data. Sensors continuously collect real-time data, and the controller (7) fine-tunes the camera position according to this data, ensuring the accuracy of each image acquisition. Through this automated adjustment method, the equipment can efficiently and accurately detect and identify small targets, making it widely applicable in online inspection and quality control in industrial production.

[0041] Installation and Maintenance: This device is installed using the fixed bracket 11 at the bottom, which is securely connected to the workbench with screws to ensure stability during use. After installation, users can operate the device normally by connecting the power and signal cables. For ease of maintenance, the device's casing is designed to be removable, allowing users to easily remove the cover to inspect internal components, perform regular maintenance, and troubleshoot any malfunctions.

[0042] The specific embodiments described herein are merely illustrative examples of the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or substitute them with similar methods, without departing from the spirit of this invention or exceeding its defined scope. Although this invention has been detailed and described in the accompanying drawings and foregoing description, such descriptions are considered illustrative or exemplary rather than restrictive. It should be understood that changes and modifications can be made by those skilled in the art within the scope of the following claims. Specifically, this invention covers additional embodiments having any combination of features from the different embodiments described above. With regard to the use of the expressions "general" or "substantially," this patent application should be understood to disclose that the disclosure equally fully satisfies these features and values, i.e., without any of the foregoing characterizations as "general" or "substantially."

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An automatically adjusted image acquisition device comprising a housing, characterized in that The machine shell is internally provided with at least one laser ranging sensor, and is also internally provided with a servo motor, which is drivingly connected with a lifting transmission assembly, and an industrial area array camera is fixed on a lifting platform of the lifting transmission assembly.

2. The automatically adjusted image capture device of claim 1, wherein, The number of the laser ranging sensors is two, specifically a first laser ranging sensor and a second laser ranging sensor, the first laser ranging sensor is arranged at a corner of an inner wall of one side of the machine shell, the second laser ranging sensor is arranged at another corner of the inner wall of the same side of the machine shell, and the industrial area array camera is arranged between the first laser ranging sensor and the second laser ranging sensor.

3. The automatically adjusted image capture device of claim 2, wherein, The machine shell is internally provided with a controller, the first laser ranging sensor and the second laser ranging sensor are connected with the controller through wires, and the controller is connected with the servo motor through wires.

4. The automatically adjusted image capture device of claim 1, wherein, The lifting transmission assembly comprises a lead screw, a rotating shaft of the servo motor is fixedly connected with the lead screw, a nut is sleeved on the lead screw to form a threaded engagement connection, parallel guide rails are arranged on the sides of the lead screw, a sliding block is fixedly connected on the nut, the sliding block is clamped with the guide rails to form a guide sliding connection, a strip-shaped shell is arranged outside the lead screw and the guide rails, a guide groove parallel to the guide rails is formed on the strip-shaped shell, a support rod is fixedly connected on the sliding block, and an outer end of the support rod extending out of the guide groove is fixedly connected with the lifting platform.

5. The automatically adjusted image capturing device of claim 1, wherein, The machine shell comprises a rectangular shell body, a mounting port is arranged on a rear side of the rectangular shell body, a box cover is arranged on the mounting port, one side of the box cover is hingedly connected with one side of the mounting port, and the other side of the box cover is in opening and closing cooperation with the mounting port.

6. The automatically adjusted image capture device of claim 5, wherein, The ranging window and the perspective window are formed on a front side wall of the rectangular shell body, a transparent plate is arranged on the perspective window, and the transparent plate is fixed on the front side wall through screws.

7. The automatically adjusted image capture device of claim 5, wherein, A fixing support is arranged on a bottom of the rectangular shell body, a mounting hole is formed in the fixing support, and a screw is inserted into the mounting hole.

8. The automatically adjusted image capture device of claim 5, wherein, A wiring hole is arranged on the bottom of the rectangular shell body, and a sealing plug is arranged on the wiring hole.

9. The automatically adjustable image collection device of claim 1, wherein, The machine shell is a metal shell, and a waterproof and anticorrosive coating is coated on an outer surface of the metal shell.

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