Portable multi-source sensing crop phenotype monitor

Abstract

The utility model discloses a portable multi -source sensing crop phenotyping monitor, include: detachable handle, protective housing, long -tubing and detachable multispectral sensor detection subassembly, detachable handle is fixedly connected with the one end of protective housing, and the other end of protective housing is rotatoryly connected with the one end of long -tubing, and the other end of long -tubing is fixedly connected with multispectral sensor detection subassembly, be equipped with the shooting button on detachable handle, be equipped with main control chip in protective housing, be equipped with multispectral sensor in multispectral sensor detection subassembly, after shooting button press down, will shoot request be transmitted to multispectral sensor through main control chip, and multispectral sensor is used for gathering the spectral data of crop. The utility model has the characteristics of low cost, convenient to carry, high detection precision and need not correct, has improved the stability and reliability of crop multispectral instrument greatly.

Description

Technical Field

[0001] This utility model relates to the field of smart agriculture technology, specifically to a portable multi-source sensor crop phenotyping instrument. Background Technology

[0002] Hyperspectral technology can acquire rich information such as soil type, vegetation type, and plant nitrogen content, and can detect early signs of plant diseases, pests, or water deficiency, which helps to take intervention measures earlier. However, its equipment and maintenance costs are high, and it also requires certain technical skills from users. At the same time, hyperspectral technology requires the acquisition of a large amount of data and complex analysis, thus requiring more advanced algorithms and computing resources.

[0003] Multispectral sensors are generally cheaper than hyperspectral devices, and crop spectrometers based on multispectral sensors are already in use. Multispectral data volume is relatively low, processing and analysis are relatively simple, and information can be acquired quickly, thereby enabling rapid and real-time agricultural monitoring and analysis. This can help users understand vegetation status and growth conditions more intuitively, and provide support for precision smart agriculture by acquiring rich information on vegetation health, soil characteristics and environmental conditions.

[0004] However, existing crop multispectral analyzers still have the following drawbacks: (1) The integrated structure design means that when the internal components of the crop multispectral analyzer fail, it cannot be disassembled for repair or individual component replacement. Only new equipment can be purchased, which increases costs. (2) There is an angular deviation between the crop multispectral instrument and the light, which will change the distribution of incident light on the crop surface, resulting in uneven reflected spectral intensity and increasing the false detection rate. Currently, the angle is corrected by adjusting the tripod posture, which increases the on-site operation time and reduces the work efficiency. (3) Since multispectral sensors are sensitive to the environment, such as changes in temperature and humidity, the measurement accuracy of multispectral sensors will be affected. Therefore, before using a crop multispectral instrument, it is necessary to calibrate the crop multispectral instrument. Frequent calibration affects the stability and reliability of the crop multispectral instrument. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a portable multi-source sensor crop phenotyping instrument, which features low cost, portability, high detection accuracy, and no need for calibration, greatly improving the stability and reliability of crop multispectral analyzers.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a portable multi-source sensor crop phenotyping instrument, comprising: a detachable handle, a protective shell, a long tube, and a detachable multispectral sensor detection assembly, wherein the detachable handle is fixedly connected to one end of the protective shell, the other end of the protective shell is rotatably connected to one end of the long tube, and the other end of the long tube is fixedly connected to the multispectral sensor detection assembly; The detachable handle is equipped with a shooting button, the protective shell contains a main control chip, and the multispectral sensor detection component contains a multispectral sensor. When the shooting button is pressed, the shooting request is transmitted to the multispectral sensor through the main control chip. The multispectral sensor is used to collect spectral data of the crop.

[0007] Furthermore, the detachable handle includes an upper handle and a lower handle. The lower handle is fixedly connected to the protective shell. A shooting button is provided inside the lower handle. A round hole is provided on the upper handle. The upper handle and the lower handle are slidably connected by an interlocking groove. When the shooting button pops out through the round hole of the upper handle, the upper handle and the lower handle are interlocked and fixed.

[0008] Furthermore, a switch button is also provided inside the lower handle. The switch button extends out of the lower handle through an opening and is used to control the opening and closing of the main control chip.

[0009] Furthermore, the multispectral sensor detection assembly includes: a detachable housing and an upper surface multispectral sensor, a lower surface multispectral sensor, a milky white glass, and a light-transmitting lens disposed within the housing. Holes are provided at corresponding positions on the upper and lower surfaces of the housing. The holes on the upper surface are covered by milky white glass, and the upper surface multispectral sensor is disposed below the milky white glass and fixedly connected to the inner wall of the housing. The holes on the lower surface are covered by a light-transmitting lens, and the lower surface multispectral sensor is disposed above the light-transmitting lens and fixedly connected to the inner wall of the housing.

[0010] Furthermore, both the upper surface multispectral sensor and the lower surface multispectral sensor adopt the AS7265x series multispectral sensor.

[0011] Furthermore, a frustum is provided at corresponding positions on both sides of the upper surface of the shell, and the height of the frustum is 5mm-8mm.

[0012] Furthermore, the long tube adopts a carbon fiber structure, the diameter of the long tube is 10mm-15mm, and the length of the long tube is 180-240mm.

[0013] Furthermore, the other end of the protective shell is rotatably connected to one end of the long tube via a rotary damper.

[0014] Furthermore, it also includes: a mounting component, which is fixed to the top plate of the protective shell by welding. The mounting component is used to hold the mobile phone, and supplies power to the main control chip and receives the collected spectral data through the mobile phone's Type-C interface.

[0015] Furthermore, the hanging assembly includes: a backing plate, a baffle, and a wavy pattern. The upper surface of the backing plate is provided with a wavy pattern, the lower surface of the backing plate is welded and fixed to the top plate of the protective shell, and the lower side of the backing plate is provided with an open baffle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The portable multi-source sensor crop phenotyping instrument of this utility model adopts a detachable handle and a detachable multispectral sensor detection component. When a fault occurs, the internal structure of the handle and the internal structure of the multispectral sensor detection component can be inspected and a single component can be replaced, reducing the maintenance cost. (2) The housing of the multispectral sensor detection component of the portable multi-source sensor crop phenotyping instrument of this utility model is provided with two truncated cones. The shadow of the truncated cones is adjusted by rotating the long tube. When the shadow of the two truncated cones is minimized, crop spectral data acquisition can greatly reduce the detection error of crop spectral data. At the same time, it has the advantage of simple operation. (3) The multispectral sensor detection component of the portable multi-source sensor crop phenotyping instrument of this utility model is equipped with an upper surface multispectral sensor and a lower surface multispectral sensor. The upper surface multispectral sensor is used to collect spectral data of sunlight incident. Since the upper surface multispectral sensor is covered with milky white glass, it can collect solar spectral data of 180°. The lower surface multispectral sensor faces the crop and is used to collect spectral data of crop reflection. The reflectance is calculated in this way. There is no need to perform standard white plate calibration, which greatly improves the stability and reliability of the crop multispectral instrument. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the portable multi-source sensor crop phenotyping instrument of this utility model; Figure 2 This is a schematic diagram of the lower handle structure in this utility model; Figure 3 This is a schematic diagram of the upper handle in this utility model; Figure 4 This is a schematic diagram of the structure of the hanging component in this utility model; Figure 5 This is a schematic diagram of the structure of the multispectral sensor detection component in this utility model; Figure 6 This is a schematic diagram of the installation of the rotary damper in this utility model; Among them, 1-Detachable handle, 11-Upper handle, 111-Round hole, 12-Lower handle, 13-Shooting button, 14-Switch button; 2-Protective shell, 21-Top plate; 3-Long tube; 4-Multispectral sensor detection assembly, 41-Housing shell, 42-Frustum, 43-RGB camera, 44-Upper surface multispectral sensor, 45-Lower surface multispectral sensor, 46-Opaque glass, 47-Transparent lens; 5-Hanging assembly, 51-Backrest, 52-Baffle, 53-Wave pattern; 6-Rotation damper. Detailed Implementation

[0018] The technical solution of this utility model will be further explained below with reference to the accompanying drawings.

[0019] like Figure 1 This is a schematic diagram of the overall structure of the portable multi-source sensor crop phenotyping monitor of this utility model. The portable multi-source sensor crop phenotyping monitor includes: a detachable handle 1, a protective shell 2, a long tube 3, and a detachable multispectral sensor detection assembly 4. The detachable handle 1 is fixedly connected to one end of the protective shell 2, the other end of the protective shell 2 is rotatably connected to one end of the long tube 3, and the other end of the long tube 3 is fixedly connected to the multispectral sensor detection assembly 4. The detachable handle 1 has a shooting button 13, the protective shell 2 contains a main control chip, and the multispectral sensor detection assembly 4 contains a multispectral sensor. When the shooting button 13 is pressed, the shooting request is transmitted to the multispectral sensor through the main control chip. The multispectral sensor is used to collect spectral data of the crop. This utility model uses a detachable handle 1 and a detachable multispectral sensor detection assembly 4. When a malfunction occurs, the internal structure of the handle and the multispectral sensor detection assembly 4 can be inspected and individual components can be replaced, reducing maintenance costs.

[0020] like Figure 2-3 The detachable handle 1 of this utility model includes an upper handle 11 and a lower handle 12. The lower handle 12 is fixedly connected to the protective shell 2. A shooting button 13 is provided inside the lower handle 12. A round hole 111 is provided on the upper handle 11. The upper handle 11 and the lower handle 12 are slidably connected by a fitting groove. When the shooting button 13 pops out through the round hole 111 of the upper handle 11, the upper handle 11 and the lower handle 12 are fitted and fixed. When it is necessary to detach the handle, the shooting button 13 is pressed down under the round hole of the upper handle 11, and the upper handle 11 and the lower handle 12 can be separated.

[0021] In one technical solution of this utility model, a switch button 14 is also provided inside the lower handle 12. The switch button 14 extends out of the lower handle 12 through an opening and is used to control the opening and closing of the main control chip.

[0022] like Figure 5The multispectral sensor detection assembly 4 includes: a detachable housing 41 and an upper surface multispectral sensor 44, a lower surface multispectral sensor 45, a milky white glass 46, and a light-transmitting lens 47 disposed in the housing 41. Holes are provided at corresponding positions on the upper and lower surfaces of the housing 41. The holes on the upper surface are covered by the milky white glass 46, and the upper surface multispectral sensor 44 is disposed below the milky white glass 46. The upper surface multispectral sensor 44 is fixedly connected to the inner wall of the housing 41. The holes on the lower surface are covered by the light-transmitting lens 47, and the lower surface multispectral sensor 45 is disposed above the light-transmitting lens 47. The lower surface multispectral sensor 45 is fixedly connected to the inner wall of the housing 41. The upper surface multispectral sensor is used to collect spectral data of incident sunlight. Since the upper surface multispectral sensor 44 is covered with milky white glass 46, the main material of which is polytetrafluoroethylene, it can collect radiant light within a 180° solid angle, realizing omnidirectional capture of spatial radiant light. It adopts uniform diffuse transmission characteristics and uses the scattering effect to perform spatial homogenization of incident light, ensuring that the radiant energy at different angles is evenly distributed on the sensing element surface of the upper surface multispectral sensor 44. The lower surface multispectral sensor 45 faces the crop and is used to collect spectral data of crop reflection, thereby calculating the reflectivity. No standard white plate calibration is required, which greatly improves the stability and reliability of the crop multispectral instrument.

[0023] In one technical solution of this utility model, both the upper surface multispectral sensor 44 and the lower surface multispectral sensor 45 adopt AS7265x series multispectral sensors, which have 18 spectral channels, covering the wavelength range from 410nm to 940nm, and the full width at half maximum (FWHM) of each spectral channel is 20nm, ensuring high-precision spectral detection.

[0024] In one technical solution of this utility model, a frustum 42 is provided at corresponding positions on both sides of the upper surface of the housing 41. This avoids the problem of overlapping shadows caused by the frustums 42 being too close together, which would prevent the determination of whether the multispectral sensor 44 on the upper surface is directly facing the sun. At the same time, providing two frustums 42 can avoid the problem of not being able to clearly see the existence of shadows due to a single frustum. The height of the frustums 42 is 5mm-8mm, which can meet the requirements of shadow imaging without interfering with the detection results of the multispectral sensor. The shadow of the frustums 42 is adjusted by rotating the long tube 3. When the shadow of the two frustums 42 is minimized, crop spectral data acquisition can be performed at this time, which can greatly reduce the detection error of crop spectral data and has the advantage of simple operation.

[0025] In this utility model, the long tube 3 adopts a carbon fiber structure, which has a certain rigidity. The diameter of the long tube 3 is 10mm-15mm to ensure the passage of the line, and the length of the long tube 3 is 180-240mm, so as to quickly find the minimum angle to block the shadow. Figure 6The protective shell 2 and the long tube 3 are rotatably connected by a rotary damper 6, which can achieve 360° rotation.

[0026] In one technical solution of this utility model, the multispectral sensor detection component 4 is further provided with an RGB camera 43. The RGB image acquired by the RGB camera 43, combined with the spectral data acquired by the upper surface multispectral sensor 44 and the lower surface multispectral sensor 45, further improves the accuracy of crop spectral data.

[0027] In one technical solution of this utility model, it further includes: a mounting component 5, which is fixed to the top plate 21 of the protective shell 2 by welding. The mounting component 5 is used to hold the mobile phone, and supplies power to the main control chip and receives the collected spectral data through the mobile phone's Type-C interface. Figure 4 The mounting component 5 includes: a back plate 51, a baffle 52, and a wavy texture 53. The upper surface of the back plate 51 is provided with a wavy texture 53 to increase the friction on the back plate 51. The lower surface of the back plate 51 is welded and fixed to the top plate 21 of the protective shell 2. The back plate 51 is provided with an opening baffle 52 on the lower side, so that the data cable can be connected to the main control chip through the opening of the baffle 52.

[0028] In this invention, the main control chip is a lubancat-A1, which can be connected to a mobile phone via a Type-C interface. The main control chip is powered by two sets of 3.3V interfaces, a GND interface, an I2C4_SDA interface, and an I2C4_SCL interface, which are respectively connected to the power lines, ground lines, SDA lines, and SCL lines of the upper surface multispectral sensor 44 and the lower surface multispectral sensor 45, respectively, for acquiring 18-channel spectral data from the upper surface multispectral sensor 44 and the lower surface multispectral sensor 45. The main control chip's USB 2.0 HOST interface is connected to the USB cable of the RGB camera 43 for transmitting the crop RGB images acquired by the RGB camera 43. Both the PC4 interface and the 3.3V interface of the main control chip are connected to the shooting button 13. When the shooting button 13 is pressed, a high-level signal is generated, and the upper surface multispectral sensor 44, the lower surface multispectral sensor 45, and the RGB camera 43 begin data acquisition; otherwise, no data acquisition occurs. The main control chip's PC3 interface is connected to the switch button 14 for controlling the main control chip's on / off state when the mobile phone is not in use.

[0029] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A portable multi-source sensor crop phenotyping instrument, characterized in that, include: The device comprises a detachable handle, a protective shell, a long tube, and a detachable multispectral sensor detection assembly. The detachable handle is fixedly connected to one end of the protective shell, the other end of the protective shell is rotatably connected to one end of the long tube, and the other end of the long tube is fixedly connected to the multispectral sensor detection assembly. The detachable handle is equipped with a shooting button, the protective shell contains a main control chip, and the multispectral sensor detection component contains a multispectral sensor. When the shooting button is pressed, the shooting request is transmitted to the multispectral sensor through the main control chip. The multispectral sensor is used to collect spectral data of the crop.

2. The portable multi-source sensor crop phenotyping instrument according to claim 1, characterized in that, The detachable handle includes an upper handle and a lower handle. The lower handle is fixedly connected to the protective shell. A shooting button is provided inside the lower handle. A round hole is provided on the upper handle. The upper handle and the lower handle are slidably connected by a fitting groove. When the shooting button pops out through the round hole of the upper handle, the upper handle and the lower handle are fitted and fixed.

3. A portable multi-source sensor crop phenotyping instrument according to claim 2, characterized in that, The lower handle is also equipped with a switch button, which extends out of the lower handle through an opening. The switch button is used to control the opening and closing of the main control chip.

4. A portable multi-source sensor crop phenotyping instrument according to claim 1, characterized in that, The multispectral sensor detection assembly includes: a detachable housing and an upper surface multispectral sensor, a lower surface multispectral sensor, a milky white glass, and a light-transmitting lens disposed within the housing. Holes are provided at corresponding positions on the upper and lower surfaces of the housing. The holes on the upper surface are covered by milky white glass, and the upper surface multispectral sensor is disposed below the milky white glass and fixedly connected to the inner wall of the housing. The holes on the lower surface are covered by a light-transmitting lens, and the lower surface multispectral sensor is disposed above the light-transmitting lens and fixedly connected to the inner wall of the housing.

5. A portable multi-source sensor crop phenotyping instrument according to claim 4, characterized in that, Both the upper and lower surface multispectral sensors use the AS7265x series multispectral sensors.

6. A portable multi-source sensor crop phenotyping instrument according to claim 4, characterized in that, A frustum is provided at corresponding positions on both sides of the upper surface of the shell, and the height of the frustum is 5mm-8mm.

7. A portable multi-source sensor crop phenotyping instrument according to claim 1, characterized in that, The long tube is made of carbon fiber, with a diameter of 10mm-15mm and a length of 180-240mm.

8. A portable multi-source sensor crop phenotyping instrument according to claim 1, characterized in that, The other end of the protective shell is rotatably connected to one end of the long tube via a rotary damper.

9. A portable multi-source sensor crop phenotyping instrument according to claim 1, characterized in that, Also includes: A mounting component is welded to the top plate of the protective shell. The mounting component is used to hold the mobile phone, which powers the main control chip and receives the collected spectral data through the phone's Type-C interface.

10. A portable multi-source sensor crop phenotyping instrument according to claim 9, characterized in that, The mounting assembly includes: a backing plate, a baffle, and a wavy pattern. The upper surface of the backing plate is provided with a wavy pattern, and the lower surface of the backing plate is welded and fixed to the top plate of the protective shell. The lower side of the backing plate is provided with an open baffle.

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