Soil element detection method, device and equipment

Abstract

The invention discloses a soil element detection method, device and equipment, and relates to the technical field of soil element detection. The method is applied to an agricultural machine vehicle-mounted system, the agricultural machine vehicle-mounted system comprises a soil depth sampling module and a measuring module, the measuring module comprises a laser, and the method comprises the steps that when an agricultural machine advances to a target detection area, the soil depth sampling module is controlled to move downwards to be inserted into soil of the target detection area, and target soil is obtained; the target soil comprises at least one target depth of soil; the soil depth sampling module is controlled to move upwards until the target soil reaches the laser focusing position, and the laser is controlled to output pulse laser; ablating the target soil based on the pulse laser to obtain target spectral data corresponding to the target soil; and determining a target element concentration corresponding to the target spectral data based on a mapping relationship between the spectral data and the element concentration. According to the embodiment of the invention, the soil element detection efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of soil element detection technology, and in particular to a method, apparatus and equipment for soil element detection. Background Technology

[0002] The spatial distribution characteristics of soil elements are of great significance for agricultural, ecological, and environmental research. Understanding the distribution of elements at different soil depths can accurately guide agricultural fertilization and assess the risk of pollutant migration. However, traditional methods cannot achieve in-situ stratified detection. Traditional soil element measurement methods, such as laboratory inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS), while highly accurate, rely on sample collection, pretreatment, and laboratory analysis, making rapid on-site detection impossible and insufficient for large-scale, multi-depth soil surveys. Laser-induced breakdown spectroscopy (LAS) offers advantages such as no pretreatment required and simultaneous multi-element detection, enabling in-situ measurement of soil elements. However, its laser penetration depth is limited, reflecting only surface composition and unable to directly obtain elemental content from deeper soil layers. Summary of the Invention

[0003] This invention provides a method, apparatus, and equipment for detecting soil elements, in order to solve the problem of low efficiency in on-site detection of elements in soils at different depths in the prior art.

[0004] According to one aspect of the present invention, a method for detecting soil elements is provided, applied to an agricultural machinery vehicle-mounted system, the agricultural machinery vehicle-mounted system including a soil depth sampling module and a measurement module, the measurement module including a laser, the method comprising:

[0005] When the agricultural machinery moves to the target detection area, the soil depth sampling module is controlled to move downward and insert into the soil in the target detection area to obtain the target soil; the target soil includes soil at at least one target depth;

[0006] The soil depth sampling module is controlled to move upward until the target soil reaches the laser focusing position, at which point the laser is controlled to output pulsed laser.

[0007] Based on the pulsed laser, the target soil is ablated to obtain the target spectral data corresponding to the target soil.

[0008] Based on the mapping relationship between spectral data and elemental concentration, the target element concentration corresponding to the target spectral data is determined.

[0009] According to another aspect of the present invention, a soil element detection device is provided, configured in an agricultural machinery vehicle-mounted system, the agricultural machinery vehicle-mounted system including a soil depth sampling module and a measurement module, the measurement module including a laser, the device comprising:

[0010] The target soil acquisition module is used to control the soil depth sampling module to move downwards and insert into the soil in the target detection area when the agricultural machinery travels to the target detection area, so as to acquire the target soil.

[0011] The laser output module is used to control the soil depth sampling module to move upward until the target soil reaches the laser focusing position, and then control the laser to output pulsed laser.

[0012] The target spectral data acquisition module is used to ablate the target soil based on the pulsed laser and acquire the target spectral data corresponding to the target soil.

[0013] The target element concentration determination module is used to determine the target element concentration corresponding to the target spectral data based on the mapping relationship between spectral data and element concentration.

[0014] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0015] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the soil element detection method according to any embodiment of the present invention.

[0016] This invention, in its embodiments, involves controlling a soil depth sampling module to move downwards and insert into the soil of the target detection area when agricultural machinery approaches it, thereby acquiring target soil. The target soil includes soil at at least one target depth. The soil depth sampling module is then controlled to move upwards until the target soil reaches the laser focusing position, at which point the laser outputs a pulsed laser beam. The target soil is ablated by the pulsed laser beam to obtain target spectral data. Based on the mapping relationship between the spectral data and elemental concentrations, the target element concentration corresponding to the target spectral data is determined. This method effectively enables rapid, in-situ detection of multi-element spectral data from soils at different depths, significantly improving detection efficiency and providing an innovative solution for real-time monitoring of soil element distribution at depth. It is of great significance in fields such as precision fertilization in agriculture, environmental pollution assessment, and soil quality monitoring.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a flowchart of a soil element detection method provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of an agricultural machinery vehicle-mounted system provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a soil depth sampling module provided in an embodiment of the present invention;

[0022] Figure 4 This is a flowchart of a soil element detection method provided in an embodiment of the present invention;

[0023] Figure 5 This is a target element distribution map provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of a soil element detection device provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of an electronic device that implements the soil element detection method of this invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] Furthermore, it should be noted that the information collected in the technical solution of this invention is information and data authorized by the user or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of related data all comply with the relevant laws, regulations and standards of relevant countries and regions, necessary confidentiality measures have been taken, and public order and good morals are not violated. Corresponding operation entry points are provided for users to choose to authorize or refuse.

[0029] Figure 1 This is a flowchart of a soil element detection method provided by an embodiment of the present invention. This embodiment is applicable to on-site detection of soil elements. The method can be executed by a soil element detection device, which can be implemented in hardware and / or software. The device can be configured in an agricultural machinery vehicle-mounted system. The agricultural machinery vehicle-mounted system includes a soil depth sampling module and a measurement module. The measurement module includes a laser. The agricultural machinery vehicle-mounted system, as shown... Figure 2 As shown, 1 is agricultural machinery, 2 is measurement module, 3 is soil depth sampling module, 4 is first reflector, 5 is laser, 6 is first focusing lens, 7 is spectrometer, 8 is second reflector, 9 is second focusing lens, 10 is soil, 11 is pressure pusher, 12 is conical outer wall, 13 is target soil, and 14 is laser.

[0030] The method provided in this embodiment is as follows: Figure 1 As shown, it includes:

[0031] S110. When the agricultural machinery travels to the target detection area, the soil depth sampling module is controlled to move downward and insert into the soil in the target detection area to obtain the target soil; the target soil includes soil at least one target depth.

[0032] The target detection area refers to the pre-defined soil sampling location on the agricultural machinery. The soil depth sampling module is a hardware component on the agricultural machinery's onboard system responsible for collecting soil samples. The target soil is a soil sample containing a specific depth. The target depth is a specific soil layer depth at which soil samples need to be collected, pre-set according to soil testing requirements.

[0033] Specifically, the agricultural machinery moves to the target detection area by navigating through a positioning system or recognizing pre-set field markers. Upon arrival, the onboard system controls the soil depth sampling module to move downwards and insert into the soil within the target detection area to obtain target soil samples. The target soil samples include soil samples at at least one target depth. For example, when the insertion depth of the soil depth sampling module is 0-20cm, the insertion depth is the depth to which the module is inserted into the soil within the target detection area. The target depth can be 0-5cm, 5-10cm, 10-15cm, or 15-20cm, and the target soil samples can include soil layers of 0-5cm, 5-10cm, 10-15cm, and 15-20cm.

[0034] S120: Control the soil depth sampling module to move upward until the target soil reaches the laser focusing position, then control the laser to output pulsed laser.

[0035] The laser focusing point is a pre-defined, fixed spatial point where the laser beam is concentrated. A laser is an instrument that generates laser light. A pulsed laser is a laser beam that is output in pulses.

[0036] Specifically, the soil depth sampling module is controlled to move upwards until the target soil reaches the laser focusing position and then stops moving. In other words, the target soil is aligned with the laser focusing position, and the laser is controlled to output pulsed laser so that the pulsed laser just hits the target soil. This ensures effective irradiation and avoids the need to move the soil and re-illuminate due to operational errors (such as incorrect positioning or premature emission), reducing unnecessary rework and further improving the overall detection efficiency.

[0037] S130. The target soil is ablated using pulsed laser to obtain the target spectral data corresponding to the target soil.

[0038] Ablation is the process of applying high-energy pulsed laser light to the target soil. Target spectral data refers to the spectral data released by the target soil.

[0039] Specifically, the method involves ablating the target soil with pulsed lasers, causing a reaction on the soil surface that releases light. Acquiring the light released during the ablation process provides the target soil's spectral data. This "pulsed laser ablation + target spectral data acquisition" approach effectively adapts to the needs of agricultural machinery field operations, addressing the shortcomings of traditional soil testing (such as laboratory sampling and analysis) in terms of low efficiency and time consumption, and improving the efficiency of soil element detection.

[0040] S140. Based on the mapping relationship between spectral data and elemental concentration, determine the target element concentration corresponding to the target spectral data.

[0041] The mapping relationship between spectral data and elemental concentration is a pre-determined correlation between spectral data and elemental concentration based on scientific experiments. The target element concentration is the actual content of the element in the target soil.

[0042] Specifically, based on the mapping relationship between spectral data and elemental concentration, the target element concentration corresponding to the target spectral data can be determined. This mapping relationship can be understood as a "spectral codebook," with the "spectral data" being the "code," and the "elemental concentration" being the "plaintext" deciphered by referring to this "spectral codebook."

[0043] Optionally, the soil depth sampling module includes a conical outer wall and a pressure plug; the conical outer wall has long grooves on its side.

[0044] Specifically, the soil depth sampling module, such as Figure 3 As shown, 11 is the pressure plug, 12 is the conical outer wall, 13 is the target soil, and 15 is the long trench.

[0045] Optionally, the soil depth sampling module is controlled to move upward until the target soil reaches the laser focusing position, and then the laser is controlled to output pulsed laser. This includes: controlling the soil depth sampling module to move upward until the target soil corresponding to the position of the long groove reaches the laser focusing position, and then controlling the laser to output pulsed laser.

[0046] The long trough is a slender soil storage trough on the soil depth sampling module.

[0047] Specifically, the collected target soil is placed in a long trench according to its original depth. The outer or inner wall of the trench can have positional markings, such as 0-5cm at the top, 5-10cm at the middle, and 10-15cm at the bottom. That is, the top section of the trench contains 0-5cm of soil, the middle section contains 5-10cm, and the bottom section contains 10-15cm. The soil depth sampling module moves upwards until the target soil at the corresponding position in the trench (e.g., 10-15cm at the bottom) reaches the laser focusing position. At this point, the laser outputs a pulsed laser, thus laying a good data foundation for subsequently obtaining the elemental concentration of the soil at the 10-15cm depth. By irradiating only the soil at the corresponding position in the trench, avoiding the laser from shining on the trench walls or soil at other depths, the detection results ensure that only the composition of the soil at the corresponding depth is reflected, achieving precise detection of a specific soil layer.

[0048] This invention, in its embodiments, involves controlling a soil depth sampling module to move downwards and insert into the soil of the target detection area when agricultural machinery approaches it, thereby acquiring target soil. The target soil includes soil at at least one target depth. The soil depth sampling module is then controlled to move upwards until the target soil reaches the laser focusing position, at which point the laser outputs a pulsed laser beam. The target soil is ablated by the pulsed laser beam to obtain target spectral data. Based on the mapping relationship between the spectral data and elemental concentrations, the target element concentration corresponding to the target spectral data is determined. This method effectively enables rapid, in-situ detection of multi-element spectral data from soils at different depths, significantly improving detection efficiency. It provides an innovative solution for real-time monitoring of soil element distribution at different depths, enhancing the efficiency of soil element detection and holding significant importance in fields such as precision fertilization in agriculture, environmental pollution assessment, and soil quality monitoring.

[0049] Figure 4 This is a flowchart of a soil element detection method provided by an embodiment of the present invention. Based on the above embodiments, this embodiment optimizes the process of "ablating the target soil using pulsed laser to obtain the target spectral data corresponding to the target soil," providing an optional implementation scheme. For example... Figure 4 As shown, the method includes:

[0050] S210. When the agricultural machinery travels to the target detection area, the soil depth sampling module is controlled to move downward and insert into the soil in the target detection area to obtain the target soil; the target soil includes soil at least one target depth.

[0051] S220: Control the soil depth sampling module to move upward until the target soil reaches the laser focusing position, then control the laser to output pulsed laser.

[0052] S230: Based on pulsed laser, the target soil is ablated to obtain the target spectral data corresponding to the target soil.

[0053] S240. Based on the mapping relationship between spectral data and elemental concentration, determine the target element concentration corresponding to the target spectral data.

[0054] Optionally, the measurement module may also include a first reflecting mirror, a second reflecting mirror, a first focusing mirror, a second focusing mirror, and a spectrometer.

[0055] The first and second reflecting mirrors are used to change the propagation path of the laser or optical signal. The first reflecting mirror, located near the laser, receives the pulsed laser output and reflects it to the second reflecting mirror. The second reflecting mirror receives the pulsed laser from the first reflecting mirror and readjusts its direction, directing the pulsed laser towards the laser focusing point. The first and second focusing mirrors compress the beam diameter and increase the light energy density, ensuring the laser accurately targets the soil or the optical signal efficiently enters the spectrometer. The spectrometer converts the focused optical signal into target spectral data. The positions of the first reflecting mirror, second reflecting mirror, first focusing mirror, second focusing mirror, and spectrometer are shown below. Figure 2 As shown.

[0056] Optionally, the target spectral data corresponding to the target soil is obtained by ablation of the target soil using pulsed laser, including: for soil at each target depth, the pulsed laser is guided and focused onto the surface of the soil through a first reflecting mirror, a second reflecting mirror, and a first focusing mirror to ablate the soil and generate plasma; the spectral data emitted by the plasma is used as the first spectral data corresponding to the soil through the first reflecting mirror, the second reflecting mirror, the first focusing mirror, and the second focusing mirror; at least one first spectral data corresponding to the soil is converged into a spectrometer to obtain the target spectral data corresponding to the target soil.

[0057] Plasma refers to high-temperature charged particle clusters containing soil composition information generated after pulsed laser ablation of soil. The first spectral data is the spectral data corresponding to the soil at the target depth.

[0058] Specifically, if the target soil contains soil layers at depths of 0-10cm and 10-20cm, the pulsed laser can be guided and focused onto the surface of the soil at depth 10-20cm using a first reflecting mirror, a second reflecting mirror, and a first focusing mirror to ablate the soil and generate plasma. Then, the pulsed laser can be guided and focused onto the surface of the soil at depth 0-10cm using the same first reflecting mirror, ablate the soil, and generate plasma. This process acquires the first spectral data for both the 10-20cm and 0-10cm layers. Finally, the two spectral data are converged into a spectrometer, and the resulting target spectral data can simultaneously reflect the compositional information of both soil layers.

[0059] Optionally, the method further includes: in response to a user's element viewing request, determining a target element from the element viewing request; obtaining at least one target depth corresponding to the target element and first spectral data corresponding to the at least one target depth; generating a target element distribution map based on the at least one target depth and the first spectral data corresponding to the at least one target depth, and displaying the target element distribution map to the user.

[0060] The target element is the element to be viewed. The target element distribution map is a visual chart displaying the target elements.

[0061] Specifically, in response to a user's element viewing request, the system identifies the target element from the request. The target element is a specific soil element that the user is most interested in, such as potassium (K), calcium (Ca), and magnesium (Mg). It then acquires at least one target depth corresponding to the target element and the corresponding first spectral data. Based on the target depth and the corresponding first spectral data, it generates a target element distribution map and displays it to the user. For example, the target element distribution map could be as follows: Figure 5 As shown, the target element is potassium (K). The horizontal axis represents the target depth in centimeters (cm), and the vertical axis represents the spectral intensity in au (Absorbance Units). The characteristic emission spectral lines of potassium include KI 766.49 nm and KI 766.90 nm. These two characteristic emission spectral lines are specific wavelength light signals emitted when the outer electrons of potassium atoms (the "I" in KI represents a neutral atom) undergo transitions. Therefore, users can intuitively understand the distribution trend of the target element in the soil based on the target element distribution map.

[0062] This invention, from the movement and positioning of the soil depth sampling module to laser excitation, spectral analysis, and elemental distribution map generation, is entirely automated, eliminating the need for manual sampling, digestion, titration, and other operations. This significantly reduces labor costs and human error, resulting in extremely high detection efficiency and suitability for real-time field operations. This invention acquires the first spectral data corresponding to each target soil depth and aggregates the first spectral data of at least one soil layer into a spectrometer to obtain the target spectral data for the target soil. This ensures the accuracy of stratified detection, avoids signal interference from soil layers at different depths, and effectively integrates multi-depth data for subsequent analysis and visualization. In response to a user's element viewing request, this invention generates a target elemental distribution map and displays it to the user. This allows the user to intuitively understand the distribution trend of the target element in the soil profile, avoiding misjudgments caused by relying on data from a single depth.

[0063] Figure 6 This is a schematic diagram of a soil element detection device provided in an embodiment of the present invention. This embodiment is applicable to on-site detection of soil elements. The device can be implemented in hardware and / or software and can be configured in an agricultural machinery vehicle-mounted system. The agricultural machinery vehicle-mounted system includes a soil depth sampling module and a measurement module. The measurement module includes a laser. The agricultural machinery vehicle-mounted system, as shown... Figure 2As shown, 1 is the agricultural machinery, 2 is the measurement module, 3 is the soil depth sampling module, 4 is the first reflecting mirror, 5 is the laser, 6 is the first focusing mirror, 7 is the spectrometer, 8 is the second reflecting mirror, 9 is the second focusing mirror, 10 is the soil, 11 is the pressure pusher, 12 is the conical outer wall, 13 is the target soil, and 14 is the laser. Figure 6 As shown, the device is configured in an agricultural machinery vehicle-mounted system, which includes a soil depth sampling module and a measurement module. The measurement module includes a laser. The device includes:

[0064] The target soil acquisition module 310 is used to control the soil depth sampling module to move downward and insert into the soil in the target detection area when the agricultural machinery travels to the target detection area, so as to acquire the target soil.

[0065] The laser output module 320 is used to control the soil depth sampling module to move upward until the target soil reaches the laser focusing position, and then control the laser to output pulsed laser.

[0066] The target spectral data acquisition module 330 is used to ablate the target soil based on pulsed laser to acquire the target spectral data corresponding to the target soil.

[0067] The target element concentration determination module 340 is used to determine the target element concentration corresponding to the target spectral data based on the mapping relationship between spectral data and element concentration.

[0068] This invention, in its embodiments, involves controlling a soil depth sampling module to move downwards and insert into the soil of the target detection area when agricultural machinery approaches the target detection area, thereby acquiring target soil. The target soil includes soil at at least one target depth. The soil depth sampling module is then controlled to move upwards until the target soil reaches the laser focusing position, at which point the laser outputs a pulsed laser beam. The target soil is ablated using the pulsed laser to obtain the corresponding target spectral data. Based on the mapping relationship between the spectral data and elemental concentrations, the target element concentration corresponding to the target spectral data is determined. This method effectively enables rapid, in-situ detection of multi-element spectral data from soils at different depths, significantly improving detection efficiency and providing an innovative solution for real-time monitoring of soil element distribution at depth. It is of great significance in fields such as precision fertilization in agriculture, environmental pollution assessment, and soil quality monitoring.

[0069] Optionally, the measurement module may also include a first reflecting mirror, a second reflecting mirror, a first focusing mirror, a second focusing mirror, and a spectrometer.

[0070] Optionally, the target spectral data acquisition module 330 includes:

[0071] The plasma generation unit is used to guide and focus the pulsed laser onto the surface of the soil at each target depth through the first reflector, the second reflector, and the first focusing mirror, thereby ablating the soil and generating plasma.

[0072] The first spectral data determination unit is used to use the spectral data emitted by the plasma as the first spectral data corresponding to the soil through the first reflecting mirror, the second reflecting mirror, the first focusing mirror and the second focusing mirror.

[0073] The target spectral data determination unit is used to converge the first spectral data corresponding to at least one soil into the spectrometer to obtain the target spectral data corresponding to the target soil.

[0074] Optionally, the soil depth sampling module includes a conical outer wall and a pressure plug; the conical outer wall has long grooves on its side.

[0075] Optionally, the laser output module 320 is specifically used to control the soil depth sampling module to move upward until the target soil corresponding to the position of the long groove reaches the laser focusing position, and then control the laser to output pulsed laser.

[0076] Optionally, the device further includes: an element viewing module, configured to: in response to a user's element viewing request, determine a target element from the element viewing request; acquire at least one target depth corresponding to the target element and first spectral data corresponding to the at least one target depth; generate a target element distribution map based on the at least one target depth and the first spectral data corresponding to the at least one target depth, and display the target element distribution map to the user.

[0077] The soil element detection device provided in this embodiment of the invention can execute the soil element detection method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0078] Figure 7 A schematic diagram of an electronic device 10, which can be used to implement embodiments of the present invention, is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0079] like Figure 7As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0080] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0081] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as soil element detection methods.

[0082] In some embodiments, the soil element detection method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the soil element detection method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the soil element detection method by any other suitable means (e.g., by means of firmware).

[0083] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0084] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0085] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0086] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0087] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0088] A computing system can include clients and servers. Clients and servers are generally geographically separated and typically interact via communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product within the cloud computing service system to address the shortcomings of traditional physical hosts and virtual private servers, such as high management difficulty and weak business scalability.

[0089] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0090] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for detecting elements in soil, characterized in that, The method is applied to an agricultural machinery vehicle-mounted system, which includes a soil depth sampling module and a measurement module, the measurement module including a laser, and includes: When the agricultural machinery moves to the target detection area, the soil depth sampling module is controlled to move downward and insert into the soil in the target detection area to obtain the target soil; the target soil includes soil at at least one target depth; The soil depth sampling module is controlled to move upward until the target soil reaches the laser focusing position, at which point the laser is controlled to output pulsed laser. Based on the pulsed laser, the target soil is ablated to obtain the target spectral data corresponding to the target soil. Based on the mapping relationship between spectral data and elemental concentration, the target element concentration corresponding to the target spectral data is determined.

2. The method according to claim 1, characterized in that, The measurement module also includes a first reflecting mirror, a second reflecting mirror, a first focusing mirror, a second focusing mirror, and a spectrometer.

3. The method according to claim 2, characterized in that, The process of ablating the target soil using the pulsed laser to obtain the target spectral data corresponding to the target soil includes: For each target depth of soil, the pulsed laser is guided and focused onto the surface of the soil through the first reflector, the second reflector, and the first focusing lens to ablate the soil and generate plasma. The spectral data emitted by the plasma is used as the first spectral data corresponding to the soil by means of the first reflecting mirror, the second reflecting mirror, the first focusing mirror and the second focusing mirror; At least one soil type's first spectral data is collected into a spectrometer to obtain the target spectral data corresponding to the target soil.

4. The method according to claim 1, characterized in that, The soil depth sampling module includes a conical outer wall and a pressure plug; the conical outer wall has a long groove on its side.

5. The method according to claim 4, characterized in that, The process of controlling the soil depth sampling module to move upwards until the target soil reaches the laser focusing position, and then controlling the laser to output pulsed laser light, includes: The soil depth sampling module is controlled to move upward until the target soil corresponding to the position of the long trench reaches the laser focusing position, and then the laser is controlled to output pulsed laser.

6. The method according to claim 3, characterized in that, The method further includes: In response to a user's element viewing request, determine the target element from the element viewing request; Obtain at least one target depth corresponding to the target element and first spectral data corresponding to at least one target depth; Based on the at least one target depth and the first spectral data corresponding to the at least one target depth, a target element distribution map is generated and displayed to the user.

7. A soil element detection device, characterized in that, Configured in an agricultural machinery vehicle-mounted system, the agricultural machinery vehicle-mounted system includes a soil depth sampling module and a measurement module, the measurement module includes a laser, and the device includes: The target soil acquisition module is used to control the soil depth sampling module to move downwards and insert into the soil in the target detection area when the agricultural machinery travels to the target detection area, so as to acquire the target soil. The laser output module is used to control the soil depth sampling module to move upward until the target soil reaches the laser focusing position, and then control the laser to output pulsed laser. The target spectral data acquisition module is used to ablate the target soil based on the pulsed laser and acquire the target spectral data corresponding to the target soil. The target element concentration determination module is used to determine the target element concentration corresponding to the target spectral data based on the mapping relationship between spectral data and element concentration.

8. The apparatus according to claim 7, characterized in that, The measurement module also includes a first reflecting mirror, a second reflecting mirror, a first focusing mirror, a second focusing mirror, and a spectrometer.

9. The apparatus according to claim 8, characterized in that, The target spectral data acquisition module includes: The plasma generation unit is used to guide and focus the pulsed laser onto the surface of the soil at each target depth through the first reflector, the second reflector, and the first focusing lens, thereby ablating the soil and generating plasma. The first spectral data determination unit is used to use the spectral data emitted by the plasma as the first spectral data corresponding to the soil through the first reflector, the second reflector, the first focusing lens and the second focusing lens; The target spectral data determination unit is used to converge the first spectral data corresponding to at least one soil into the spectrometer to obtain the target spectral data corresponding to the target soil.

10. An electronic device, characterized in that, The electronic device includes: At least one processor; and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the soil element detection method according to any one of claims 1-6.

Images