A mist drop deposition image acquisition device

Abstract

The utility model discloses a kind of fog drop deposition image acquisition devices, it is related to aviation spray detection equipment technical field, solve the problem of fog drop deposition image acquisition in prior art not applicable large-scale, fast detection demand.The utility model includes mobile platform, and it is equipped with telescopic support in pairs on the mobile platform, and the telescopic end of telescopic support is matched with crossbeam;Movable support platform is equipped on the crossbeam, and image acquisition unit is equipped on the support platform.Through setting image acquisition unit, the real-time acquisition of image can be realized;By setting the crossbeam supported by telescopic support on the mobile platform, the movement collection of image acquisition unit in horizontal direction is provided with support.The device is more suitable for outdoor complex environment, fog drop deposition test can be carried out in any open space, and image acquisition is accurate and timely, collection operation is convenient, reduces experimental collection error and operation difficulty, and is suitable for large-scale, large quantity fog drop deposition image fast detection demand.

Description

Technical Field

[0001] This utility model relates to the technical field of aviation spray detection equipment, and in particular to a droplet deposition image acquisition device. Background Technology

[0002] During agricultural drone operations, pesticides are sprayed onto crops in the form of droplets. Droplet size and droplet coverage density are key indicators for evaluating spraying effectiveness. Accurate on-site testing methods are crucial for assessing the performance of spraying equipment and can provide reliable data support for optimizing spraying technology. However, traditional testing methods rely on manual sampling, typically involving multiple steps such as sample collection using calibration plates, preservation, and transfer to the laboratory for analysis. During sampling and transfer, samples are susceptible to environmental contamination, affecting the accuracy of droplet deposition parameter assessments. Furthermore, multiple operational steps not only increase labor costs but also easily introduce operational errors, further reducing the reliability of the test data.

[0003] In actual testing experiments, after starting the agricultural drone, the spray width usually needs to be adjusted according to the width of the test strip to ensure appropriate coverage. The spray height is generally set to 3-5 meters, and spraying is carried out along the horizontal axis of the test strip. The spraying speed and flow rate are preset according to the operational requirements to ensure that the droplets are evenly distributed on the test strip. The experimenter needs to lay the test strip flat on the open ground in the work area, ensuring that the test strip is close to the ground and neatly arranged to avoid the influence of wind on the test results. The width of the test strip arrangement should be adapted to the spray width of the agricultural drone to ensure uniform spray coverage. Droplets deposited on the test strip will leave marks.

[0004] Currently, commonly used droplet deposition image acquisition devices are handheld devices, such as the droplet image acquisition device and method based on a smartphone disclosed in Chinese invention patent publication number CN110567958A. Although this type of device can identify droplets with a diameter of tens of micrometers, it has many limitations. First, when laying out test paper over a large area, the handheld scanner has a limited scanning area per scan, requiring multiple scans for a single test paper. This is inconvenient for personnel to stand and is labor-intensive. Its operation method limits its flexible application in the field or complex working environments, making it difficult to achieve real-time monitoring and unsuitable for large-scale, rapid detection needs. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a fog deposition image acquisition device, which solves the problem that the existing technology is not suitable for large-scale, rapid detection requirements for fog deposition image acquisition.

[0006] The technical solution of this utility model is implemented as follows: a fog droplet deposition image acquisition device includes a mobile platform, on which telescopic supports are provided in pairs, and the telescopic ends of the telescopic supports cooperate with a crossbeam; a movable support platform is provided on the crossbeam, and an image acquisition unit is provided on the support platform.

[0007] Preferably, the mobile platform includes a gantry frame, with rollers rotatably mounted at both open ends of the gantry frame, and telescopic supports fixed to both sides of the upper part of the gantry frame. The telescopic supports are electric telescopic cylinders, which are fixedly mounted on the gantry frame.

[0008] Preferably, both ends of the crossbeam are provided with connecting seats, and the telescopic ends of the electric telescopic cylinder are respectively connected to the connecting seats through pins, enabling the electric telescopic cylinder to change the height of the crossbeam. A slide rail is fixedly provided at the bottom of the crossbeam, and a slider is slidably mounted on the slide rail. The slider is detachably connected to the support platform.

[0009] Preferably, a drive motor is fixedly mounted on the crossbeam, and pulleys are provided at the output end of the drive motor and on the crossbeam. The two pulleys are connected by a synchronous belt drive, and the synchronous belt is fixedly connected to the slider.

[0010] Preferably, a number of sensors are evenly spaced on the crossbeam, and a contact arm for triggering the sensors is fixed on the synchronous belt or the slider.

[0011] Preferably, the slider is connected to a locking seat by bolts, the locking seat is provided with a U-shaped groove, and receiving grooves are provided on both sides of the opening of the U-shaped groove. A locking block is slidably provided in the receiving groove, and a spring is provided between the locking block and the U-shaped groove.

[0012] Preferably, the support platform includes a locking block disposed at the opening of the U-shaped groove, the locking block is connected to a ball joint, the lower end of the ball joint is connected to a mounting base, and the image acquisition unit is fixedly disposed on the mounting base.

[0013] Preferably, the image acquisition unit is a camera, and the gantry frame has an opening corresponding to the image acquisition unit.

[0014] The beneficial effects of this utility model are: By setting up an image acquisition unit, real-time image acquisition can be achieved. A mobile platform provides support and a foundation for the entire device's movement. A crossbeam supported by telescopic supports on the mobile platform supports the lateral movement of the image acquisition unit, and the height of the crossbeam can be adjusted using the telescopic supports to customize the height of the image acquisition unit according to the actual image acquisition range requirements. This device is more adaptable to complex outdoor environments, allowing for droplet deposition experiments in any open space. Image acquisition is accurate and timely, and the operation is convenient, reducing experimental acquisition errors and operational difficulty. It is suitable for the rapid detection of large-scale, high-volume droplet deposition images. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the location of the synchronous belt in this utility model; Figure 3 This is a schematic diagram showing the positions of the contact arm and sensor in this utility model. Figure 4 This is a schematic diagram of the connection structure between the connector and the support platform of this utility model; Figure 5 This is a schematic diagram of the connecting seat structure of this utility model; Figure 6 This is a schematic diagram of the support platform structure of this utility model; In the diagram: 1: Mobile platform, 2: Telescopic support, 3: Crossbeam, 4: Support platform, 5: Image acquisition unit, 11: Gantry frame, 12: Roller, 31: Connecting seat, 32: Slide rail, 33: Drive motor, 34: Pulley, 35: Synchronous belt, 36: Sensor, 37: Contact arm, 38: Snap-fit ​​seat, 39: U-shaped groove, 40: Locking block, 41: Spring, 42: Snap-fit ​​block, 43: Mounting seat. Detailed Implementation

[0017] 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.

[0018] like Figure 1 As shown in Embodiment 1, a fog droplet deposition image acquisition device includes a mobile platform 1, which provides support and a foundation for the entire device. The mobile platform 1 is equipped with paired telescopic supports 2, the telescopic ends of which engage with a crossbeam 3. A movable support platform 4 is mounted on the crossbeam 3, and an image acquisition unit 5 is mounted on the support platform 4. The image acquisition unit enables real-time image acquisition. In this embodiment, by setting a crossbeam supported by telescopic supports on the mobile platform, support is provided for the lateral movement of the image acquisition unit. Simultaneously, the height of the crossbeam can be adjusted using the telescopic supports, thereby allowing the height of the image acquisition unit to be adjusted according to the actual image acquisition range requirements.

[0019] Specifically, in this embodiment, the mobile platform 1 includes a gantry frame 11, with rollers 12 rotatably mounted at both open ends of the gantry frame 11, and telescopic supports 2 fixed to the upper sides of the gantry frame 11. Additionally, in this embodiment, the image acquisition unit 5 is a camera, and the gantry frame 11 has an opening corresponding to the image acquisition unit 5.

[0020] In practical use, test paper is first laid out on the ground in the field according to actual needs, ensuring that the test paper is in close contact with the ground to avoid the influence of wind on the test results, and arranged neatly according to the test requirements. Then, a drone is used to spray the test paper horizontally and directly above it for a distance of 3-5 meters. The spraying speed and flow rate should be preset according to the operational requirements to ensure that the sprayed droplets are distributed on the laid test paper. After the operation is completed, the mobile platform is aligned with one end of the test paper, with the gantry frame spanning both sides of the test paper. The mobile platform is then moved gradually along the length of the test paper, pausing after each movement. The support platform is then controlled to move horizontally along the crossbeam, gradually acquiring multiple images in different areas. When the platform reaches the other end of the crossbeam, it continues to move forward a certain distance, while the support platform moves in the direction of the crossbeam to acquire the next set of images. This device can conduct droplet deposition experiments in any open space, making it more suitable for complex outdoor environments. It provides accurate and timely image acquisition, is easy to operate, reduces experimental acquisition errors and operational difficulty, and is suitable for the rapid detection of large-scale, high-volume droplet deposition images.

[0021] As an optional implementation, the images captured by the camera can be stored in the camera's internal memory, or the camera can be connected to a control board mounted on the chassis of the Longben vehicle. The control board transmits the images to a terminal in the operator's hand via wireless or wired means. The terminal can be a laptop computer, and the control board can be a conventional microcontroller. When transmitting wirelessly, a conventional wireless transmission module is installed on the control board, which wirelessly connects to a wireless receiving module connected to the laptop computer to achieve real-time data transmission.

[0022] In Example 2, based on Example 1, the telescopic support 2 uses a conventional electric telescopic cylinder, which is fixedly mounted on the gantry frame 11. Both ends of the crossbeam 3 are provided with connecting seats 31. The telescopic ends of the electric telescopic cylinder are connected to the connecting seats 31 via pins. In this example, two electric telescopic cylinders are provided. The fixed ends of the electric telescopic cylinders are fixed to the top of the gantry frame with bolts. The telescopic direction of the electric telescopic cylinders is vertical, thus changing the height of the crossbeam 3 when the electric telescopic cylinders extend or retract.

[0023] In addition, such as Figure 2 As shown, a slide rail 32 is fixedly mounted on the bottom of the crossbeam 3, and a slider is slidably mounted on the slide rail 32. The slider is detachably connected to the support platform 4. To enable the lateral movement of the image acquisition unit, a drive motor 33 is fixedly mounted on the crossbeam 3. Both the output end of the drive motor 33 and the crossbeam 3 are equipped with pulleys 34. The two pulleys 34 are connected by a synchronous belt 35, which is fixedly connected to the slider. Specifically, in this embodiment, an L-shaped arm is connected to the slider, and the L-shaped arm is fixedly connected to the synchronous belt by bolts. When it is necessary to control the image acquisition unit to move along the crossbeam, the drive motor is turned on. The drive motor drives the synchronous belt to move, which in turn drives the slider to slide along the slide rail.

[0024] As a further optional implementation, a plurality of sensors 36 are provided at equal intervals on the crossbeam 3, such as... Figure 3 As shown, a contact arm 37 for triggering the sensor 36 is fixedly mounted on the synchronous belt 35 or the slider. In this embodiment, the sensor 36 can be a conventional photoelectric sensor, fixedly mounted on the crossbeam, with the contact arm fixedly connected to the slider. The photoelectric sensor, drive motor, and image acquisition unit are all electrically connected to the control board. When the drive motor drives the synchronous belt to move, causing the contact arm on the slider to trigger the sensor, the sensor sends a feedback signal to the control board. The control board controls the drive motor to pause rotation and controls the image acquisition unit, which is currently stationary, to acquire an image. After acquisition, the drive motor continues to work, driving the image acquisition unit to move until it triggers the next sensor and stops. The image acquisition unit then moves to the next position to acquire an image. The drive motor drives the image acquisition unit to reciprocate along the guide rail on the crossbeam to achieve the purpose of eliminating blind spots in the camera view.

[0025] In addition, in actual use, this embodiment activates the image acquisition device and moves it linearly along the longitudinal axis of the test paper. The distance between adjacent sensors is 25 cm, so that the image acquisition unit pauses once every 25 cm to accurately acquire an image of droplet deposition on the surface of the test paper.

[0026] Example 3, based on Example 1, such as Figure 4 , 5As shown in Figure 6, a locking seat 38 is bolted to the slider. The locking seat 38 is provided with a U-shaped groove 39. Receiving grooves are provided on both sides of the opening of the U-shaped groove 39. A locking block 40 is slidably provided in the receiving groove. A spring 41 is provided between the locking block 40 and the U-shaped groove 39.

[0027] Additionally, the support platform 4 includes a locking block 42 located at the opening of the U-shaped groove 39. Both sides of the locking block have grooves for inserting the ends of the locking blocks. When connecting the support platform, the two locking blocks are pulled outwards while compressing the springs. The locking blocks are then placed into the opening of the U-shaped groove. After releasing the locking blocks, the spring's restoring force pushes the locking blocks to move, allowing the ends of the two locking blocks to be inserted into the grooves on both sides of the locking block. The locking block 42 is connected to a ball joint, and the lower end of the ball joint is connected to a mounting base 43. The image acquisition unit is fixedly mounted on the mounting base 43. By using the ball joint, the orientation of the image acquisition unit can be fine-tuned before acquisition for better image acquisition.

[0028] As a further optional implementation, to dampen the image acquisition unit and avoid vibration interference during image acquisition, in this embodiment, the mounting base includes two parallel parts: an upper plate and a lower plate. The upper plate is connected to a ball joint, and the lower plate is bolted to the image acquisition unit. The upper and lower plates are connected by several springs, which work together to provide a certain degree of damping and improve stability. This device is more suitable for complex outdoor environments, allowing for droplet deposition experiments in any open space. Image acquisition is convenient and rapid, reducing errors caused by droplets potentially evaporating when exposed to air.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A droplet deposition image capture device, characterized by: The system includes a mobile platform (1), on which telescopic supports (2) are provided in pairs, and the telescopic ends of the telescopic supports (2) cooperate with a crossbeam (3); a movable support platform (4) is provided on the crossbeam (3), and an image acquisition unit (5) is provided on the support platform (4); the mobile platform (1) includes a gantry frame (11), and rollers (12) are rotatably provided at both open ends of the gantry frame (11); the telescopic supports (2) are respectively fixed on both sides of the upper part of the gantry frame (11); a slide rail is fixedly provided at the bottom of the crossbeam (3). (32) A slider is slidably provided on the slide rail (32), and the slider is detachably connected to the support platform (4); a drive motor (33) is fixedly provided on the crossbeam (3), and pulleys (34) are provided on the output end of the drive motor (33) and on the crossbeam (3), and the two pulleys (34) are connected by a synchronous belt (35) for transmission, and the synchronous belt (35) is fixedly connected to the slider; a number of sensors (36) are provided at equal intervals on the crossbeam (3), and a contact arm (37) for triggering the sensor (36) is fixedly provided on the synchronous belt (35) or the slider.

2. The droplet deposition image gathering apparatus of claim 1, wherein: The telescopic support (2) is an electric telescopic cylinder, which is fixedly mounted on the gantry frame (11).

3. The droplet deposition image gathering apparatus of claim 2, wherein: Both ends of the crossbeam (3) are provided with connecting seats (31). The telescopic ends of the electric telescopic cylinder are connected to the connecting seats (31) through pins. The electric telescopic cylinder can change the height of the crossbeam (3).

4. The droplet deposition image acquisition apparatus of any of claims 1 to 3, wherein: The slider is connected to a locking seat (38) by bolts. The locking seat (38) is provided with a U-shaped groove (39). Both sides of the opening of the U-shaped groove (39) are provided with receiving grooves. A locking block (40) is slidably provided in the receiving groove. A spring (41) is provided between the locking block (40) and the U-shaped groove (39).

5. The droplet deposition image gathering apparatus of claim 4, wherein: The support platform (4) includes a locking block (42) set at the opening of the U-shaped groove (39), the locking block (42) is connected to a ball joint, the lower end of the ball joint is connected to a mounting base (43), and the image acquisition unit is fixedly set on the mounting base (43).

6. The droplet deposition image gathering apparatus of claim 5, wherein: The image acquisition unit (5) is a camera, and the gantry frame (11) has an opening corresponding to the image acquisition unit (5).

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