A field storage device for soil samples in a land quality geochemical survey

Abstract

This application discloses a field storage device for soil samples in a land quality geochemical survey, relating to the field of geological research technology. The device includes a main chamber, at least one independent sample compartment unit, a temperature control buffer module, and an intelligent identification management system. This application stores soil samples through the independent sample compartment unit, stabilizes and monitors the temperature inside the main chamber through the temperature control buffer module, and records and stores the sampling information of the soil samples through the intelligent identification management system. This enables physical isolation, environmental buffering, information binding, and convenient operation of soil samples, maximizing the originality and traceability of samples from the field to the laboratory.

Description

Technical Field

[0001] This application relates to the field of geological research technology, and in particular to a field storage device for soil samples in land quality geochemical surveys. Background Technology

[0002] Geochemical surveys of land quality are an important means of understanding the distribution of soil elements, conducting environmental assessments, and exploring resources. The key is to obtain soil samples that represent the original, uncontaminated state. Currently, after field sampling, samples are usually placed in simple cloth bags, plastic bags, or plastic bottles, and then centrally placed in general-purpose sample boxes or insulated containers before being transported back to temporary camps or laboratories.

[0003] The existing storage and transportation methods have the following obvious defects: (1) High risk of secondary pollution: The general sample box is not divided into sections. Sample bags from different sampling points are easily squeezed and rubbed against each other, resulting in sample bag damage or label fall-off, causing cross-contamination or confusion of samples. (2) Poor sample stability: Volatile and easily oxidized components in soil samples are sensitive to temperature and light. Ordinary insulated boxes can only provide limited heat insulation. In hot, cold or large temperature difference between day and night in the field, it is difficult to maintain the stability of sample properties and affect the accuracy of test results. (3) Difficulty in information management and traceability: Sample identification mainly relies on external labels, which are easily damaged or blurred in the case of transportation bumps, rain, etc., resulting in loss of sample information and bringing great difficulties to the later sample registration and data management. (4) Inconvenient operation and low efficiency: After sampling, labels need to be written manually, bundled and packaged, which is cumbersome and especially difficult to operate in bad weather. Moreover, the existing device does not consider the temporary storage of sampling tools (such as soil shovels and gloves), which affects the cleanliness and efficiency of the work site. Summary of the Invention

[0004] The main objective of this application is to propose a field storage device for soil samples in land quality geochemical surveys and its usage method, so as to maximize the originality and traceability of soil samples from the field to the laboratory.

[0005] To achieve the above objectives, one aspect of this application provides a field storage device for soil samples from a land quality geochemical survey. The device includes a main body, at least one independent sample compartment unit, a temperature control buffer module, and an intelligent identification management system.

[0006] The main housing has a regularly arranged matrix of compartments inside, which is used to accommodate the independent sample compartment units. The independent sample compartment unit is an independent, removable cubic container, and the size of the independent sample compartment unit matches the compartment positions of the compartment matrix; the independent sample compartment unit is used to store soil samples; The temperature control buffer module is a passive temperature regulation system, which is installed in the interlayer of the main housing; The intelligent identification management system includes a main control unit, a reader / writer, a display screen, and a power supply, all located in the main housing. The intelligent identification management system is used to process and display the sampling information of soil samples within the independent sample chamber unit.

[0007] In some embodiments, the main housing is made of waterproof material.

[0008] In some embodiments, each of the independent sample chamber units includes an outer protective chamber, an inner sample container, a sealing cap, and a unit identification area; The outer protective housing has an outer shell; The inner sample container is made of chemically inert material and is placed inside the outer protective chamber to hold soil samples. The sealing cap, together with the inner sample container and the outer protective chamber, forms a double sealing structure; The unit identification area is set at the target position of the outer protective compartment and is used to attach or embed the identification chip.

[0009] In some embodiments, the temperature control buffer module includes a heat-insulating reflective layer, a phase change material layer, and a temperature monitoring module; The heat-insulating reflective layer is supported by aluminum foil composite foam material and is located outside the phase change material layer; the aluminum foil on the surface of the heat-insulating reflective layer is used to reflect solar radiation heat, and the internal closed-cell foam structure contains still air to form a heat conduction barrier. The phase change material layer is made of paraffin or hydrated salt with a set melting point, and the phase change material layer is filled in the interlayer of the main box wall; the phase change material layer is used to absorb or release heat by utilizing the latent heat of phase change to maintain the temperature inside the main box within a set range. The temperature monitoring module includes a temperature probe, which is located on the outside of the main enclosure. The temperature probe is used to monitor the current temperature of the target area inside the main enclosure, convert the current temperature into a digital signal, and then send it to the main control unit at regular intervals.

[0010] In some embodiments, the unit identification area of ​​the independent sample compartment unit is used to set an RFID tag; the RFID tag is bound to the sampling information of the soil sample; The reader is used to read the unique identification code stored in the RFID tag and send the unique identification code to the main control unit; The main control unit is used to bind the sampling information of the soil sample to each inserted independent sample chamber unit; wherein, the sampling information includes sample number, geographical coordinates, sampling depth, sampling time and sampling personnel; the unique identification code is bound to the sampling information and a corresponding log is generated.

[0011] In some embodiments, the sampling information of the soil sample is bound to each inserted independent sample compartment unit via a mobile terminal.

[0012] In some embodiments, the temperature probe in the temperature control buffer module collects the current temperature inside the main chamber at a set period and sends it to the main control unit; The main control unit is used to compare the current temperature with a preset temperature warning threshold; if the current temperature exceeds the temperature warning threshold, an alarm event is generated and the alarm event is pushed to the mobile terminal through the wireless communication module.

[0013] In some embodiments, the temperature warning threshold is preset via the main control unit or the mobile terminal.

[0014] In some embodiments, the display screen is used to display at least one of sample information or device status; The sample information includes the sampling information of the soil sample, the binding time, and the corresponding temperature change curve. The device status includes the current temperature, power level, storage capacity, and alarm events within the main enclosure.

[0015] To achieve the above objectives, another aspect of this application proposes a method for using a soil sample field storage device, applied to a soil sample field storage device for a land quality geochemical survey as described above. The method includes the following steps: The unique identification code stored in the RFID tag of the independent sample compartment unit is read by the reader of the intelligent identification management system; Read the soil sample bound to the independent sample compartment unit; The sampling information is bound to the corresponding unique identification code and sent to the mobile terminal; The current temperature inside the main chamber is dynamically displayed, and the current temperature is compared with a preset temperature warning threshold. If the current temperature exceeds the temperature warning threshold, an alarm event is generated and pushed to the mobile terminal via the wireless communication module.

[0016] The embodiments of this application include at least the following beneficial effects: This application provides a field storage device for soil samples in a land quality geochemical survey and its usage method. The device includes a main chamber, at least one independent sample compartment unit, a temperature control buffer module, and an intelligent identification management system. This application stores soil samples through the independent sample compartment unit, stabilizes and monitors the temperature inside the main chamber through the temperature control buffer module, and records and stores the sampling information of the soil samples through the intelligent identification management system. This enables physical isolation, environmental buffering, information binding, and convenient operation of the soil samples, maximizing the originality and traceability of the samples from the field to the laboratory. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a field storage device for soil samples in a land quality geochemical survey, provided as an embodiment of this application; Figure 2 An example diagram of the temperature control buffer module provided in the embodiments of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit it. In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application; they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0021] This application relates to the field of geological survey and environmental monitoring technology, specifically to a temporary field storage and transportation device for soil samples collected for land quality geochemical surveys and transported to the laboratory. Specifically, this application provides a dedicated field storage device for soil samples that effectively isolates and stabilizes the environment, facilitates information management, and improves fieldwork efficiency.

[0022] This application provides a field storage device for soil samples in a land quality geochemical survey. The device includes a main box, at least one independent sample compartment unit, a temperature control buffer module, and an intelligent identification management system. The main housing has a regularly arranged matrix of compartments inside, which is used to accommodate the independent sample compartment units. The independent sample compartment unit is an independent, removable cubic container, and the size of the independent sample compartment unit matches the compartment positions of the compartment matrix; the independent sample compartment unit is used to store soil samples; The temperature control buffer module is a passive temperature regulation system, which is installed in the interlayer of the main housing; The intelligent identification management system includes a main control unit, a reader / writer, a display screen, and a power supply, all located in the main housing. The intelligent identification management system is used to process and display the sampling information of soil samples within the independent sample chamber unit.

[0023] It should be noted that the storage device in this application embodiment can collect both terrestrial soil and marine sediments, and the specific type of soil collected can be set according to the actual situation.

[0024] It is understood that the independent sample chamber unit in this application embodiment achieves physical isolation of each soil sample, the rigid outer shell prevents crushing damage, and the double seal effectively prevents leakage and contamination.

[0025] Temperature control buffer modules (especially phase change materials) can effectively buffer drastic changes in external temperature, providing a more stable microenvironment for volatile components and improving the reliability of detection data.

[0026] The intelligent labeling management system permanently binds physical samples to electronic information. Scanning provides access to the entire information chain, avoiding data loss due to manual recording errors and damaged labels, thus greatly improving the efficiency and scientific rigor of sample management.

[0027] The device in this application adopts an integrated design, combining soil sample storage, tool storage, and information entry functions into one, making field sampling operations more standardized, convenient, and efficient, and reducing the burden on personnel.

[0028] Optionally, the main housing is made of waterproof material.

[0029] Optionally, each of the independent sample compartment units includes an outer protective compartment, an inner sample container, a sealing cap, and a unit identification area; The outer protective housing has an outer shell; The inner sample container is made of chemically inert material and is placed inside the outer protective chamber to hold soil samples. The sealing cap, together with the inner sample container and the outer protective chamber, forms a double sealing structure; The unit identification area is set at the target position of the outer protective compartment and is used to attach or embed the identification chip.

[0030] For example, the inner sample container is made of Teflon or high-density polyethylene.

[0031] Optionally, the temperature control buffer module includes a heat-insulating reflective layer, a phase change material layer, and a temperature monitoring module; The heat-insulating reflective layer is supported by aluminum foil composite foam material and is located outside the phase change material layer; the aluminum foil on the surface of the heat-insulating reflective layer is used to reflect solar radiation heat, and the internal closed-cell foam structure contains still air to form a heat conduction barrier. The phase change material layer is made of paraffin or hydrated salt with a set melting point, and the phase change material layer is filled in the interlayer of the main box wall; the phase change material layer is used to absorb or release heat by utilizing the latent heat of phase change to maintain the temperature inside the main box within a set range. The temperature monitoring module includes a temperature probe, which is located on the outside of the main enclosure. The temperature probe is used to monitor the current temperature of the target area inside the main enclosure, convert the current temperature into a digital signal, and then send it to the main control unit at regular intervals.

[0032] Understandably, the internal closed-cell foam structure contains a large amount of still air, forming an effective heat conduction barrier that significantly slows down the conduction speed of external high or low temperatures through the chamber walls.

[0033] The working principle of phase change material layers is to utilize the phase change of matter (solid-state) When in a liquid state, it needs to absorb or release a large amount of latent heat while maintaining a constant temperature.

[0034] The temperature probe itself does not participate in temperature control; its purpose is to display the temperature of the core area inside the chamber in real time.

[0035] Optionally, the unit identification area of ​​the independent sample compartment unit is used to set an RFID tag; the RFID tag is bound to the sampling information of the soil sample; The reader is used to read the unique identification code stored in the RFID tag and send the unique identification code to the main control unit; The main control unit is used to bind the sampling information of the soil sample to each inserted independent sample chamber unit; wherein, the sampling information includes sample number, geographical coordinates, sampling depth, sampling time and sampling personnel; the unique identification code is bound to the sampling information and a corresponding log is generated.

[0036] Specifically, embodiments of this application can generate electronic logs of soil sample transfer and export reports in standard format.

[0037] Optionally, the sampling information of the soil sample can be bound to each inserted independent sample compartment unit via a mobile terminal.

[0038] It is understood that, in the embodiments of this application, the sampling information of soil samples can be bound to each inserted independent sample chamber unit through either the main control unit or a mobile terminal (such as a mobile phone).

[0039] Optionally, the temperature probe in the temperature control buffer module collects the current temperature inside the main chamber at a set period and sends it to the main control unit; The main control unit is used to compare the current temperature with a preset temperature warning threshold; if the current temperature exceeds the temperature warning threshold, an alarm event is generated and the alarm event is pushed to the mobile terminal through the wireless communication module.

[0040] For example, after receiving data, the main control unit maintains a connection with the mobile terminal (with a dedicated app installed) held by the field sampler via a wireless communication module such as Bluetooth. When the app interface prompts "New Sample Insertion," the sampler manually enters the sampling point information for that sample (including: sample number, geographical coordinates, sampling depth, sampling time, sampler, etc.). The app sends this information packet to the main control unit. The main control unit performs a key operation, creating a new data record entry in its internal memory or associated memory card, and permanently logically binding the RFID UID (Unique Identifier of an RFID Tag) to the sampling point information packet. The main control unit also associates the continuously received temperature-time series data with the currently active (or all bound) sample records, forming an environmental log.

[0041] Optionally, the temperature warning threshold can be preset via the main control unit or the mobile terminal.

[0042] Optionally, the display screen is used to display at least one of sample information or device status; The sample information includes the sampling information of the soil sample, the binding time, and the corresponding temperature change curve. The device status includes the current temperature, power level, storage capacity, and alarm events within the main enclosure.

[0043] For example, the sample list view (sample number and basic information of all RFID-tagged samples), the details view (clicking on any sample displays its complete sampling information, binding time and corresponding temperature change curve), and the device status (current chamber temperature, power, storage capacity, alarm information, etc.) are displayed through the screen or mobile terminal APP interface.

[0044] To achieve the above objectives, another aspect of this application proposes a method for using a soil sample field storage device, applied to a soil sample field storage device for a land quality geochemical survey as described above. The method includes the following steps: The unique identification code stored in the RFID tag of the independent sample compartment unit is read by the reader of the intelligent identification management system; Read the soil sample bound to the independent sample compartment unit; The sampling information is bound to the corresponding unique identification code and sent to the mobile terminal; The current temperature inside the main chamber is dynamically displayed, and the current temperature is compared with a preset temperature warning threshold. If the current temperature exceeds the temperature warning threshold, an alarm event is generated and pushed to the mobile terminal via the wireless communication module.

[0045] The following sections will provide a detailed description and explanation of some optional embodiments of this application, using specific application examples.

[0046] To achieve the above objectives, the embodiments of this application adopt the following technical solutions: This application provides a field storage device for soil samples in a land quality geochemical survey, comprising: a main body, an independent sample compartment unit, a temperature control buffer module, and an intelligent identification management system.

[0047] 1. Main chamber: Made of sturdy, lightweight, and waterproof material, the chamber has a regularly arranged matrix of compartments inside to accommodate independent sample compartment units.

[0048] 2. Independent Sample Compartment Units: Each independent sample compartment unit is a removable cubic container, its dimensions matching the compartments of the main housing. Each sample compartment unit includes: (1) External protective enclosure: It has a hard outer shell.

[0049] (2) Inner sample container: placed inside the outer protective chamber, used to hold soil samples, and made of chemically inert materials (such as Teflon, high-density polyethylene).

[0050] (3) Sealing cap: forms a double sealing structure with the inner sample container and the outer protective chamber.

[0051] (4) Unit identification area: set in a prominent position on the outer protective compartment for attaching or embedding identification chips (such as RFID tags or QR codes).

[0052] 3. Temperature Control Buffer Module: This module is a passive temperature regulation system. Its core objective is to slow down the rate of temperature fluctuations within the chamber due to drastic changes in the external environment, providing a relatively stable thermal environment for the soil samples. Its working principle is based on the synergistic effect of thermal barrier, heat absorption, and heat release, and is integrated into the interlayer of the main chamber, including: (1) The heat-insulating and reflective layer (aluminum foil composite foam material) is located outside the phase change material layer. The high reflectivity aluminum foil on its surface can reflect most of the strong solar radiation heat (infrared rays) from the outside, reducing radiative heat transfer. The internal closed-cell foam structure contains a large amount of still air, forming an effective heat conduction barrier, which significantly slows down the conduction speed of high or low external temperatures through the box wall into the interior.

[0053] (2) A phase change material layer (paraffin or hydrated salt with a specific melting point) is filled in the interlayer of the chamber wall. It utilizes the latent heat of phase change to absorb or release heat, maintaining a relatively constant temperature inside the chamber. Its working principle is based on the phase change of the substance (solid-state). When in a liquid state, it needs to absorb or release a large amount of latent heat while maintaining a constant temperature.

[0054] (3) Temperature monitoring: A temperature probe is installed on the outside of the chamber to sense the air temperature in the core area inside the chamber (such as the center of the sample chamber matrix) and converts it into a digital signal to be sent to the main control unit at regular intervals. It does not participate in temperature control itself, but is designed to display the temperature of the core area inside the chamber in real time.

[0055] 4. Intelligent Identification Management System: Composed of hardware and software. (1) Hardware: including the main control unit (microcontroller), reader (for reading RFID tags), small display screen and power supply, which are set in the main box.

[0056] (2) Software: Pre-installed in the main control unit or can be connected to a mobile terminal (phone) via Bluetooth / Wi-Fi. Its functions include: automatically or manually binding sampling point number, coordinates, time, sampling personnel, and other information to each inserted independent sample chamber unit; recording the temperature change curve inside the chamber and setting early warning thresholds; generating an electronic log of sample flow and exporting a standard format report.

[0057] The data processing of the intelligent identification management system is an automated process of information collection, binding, recording, and display. The specific operation process is as follows: Event Triggering and Data Acquisition: When a staff member inserts an independent sample compartment unit with an RFID tag into any compartment of the main chamber, the reader antenna at the bottom of the compartment senses the tag entering its radio frequency field range; the reader is immediately activated and reads the unique identification code stored in the RFID tag. A temperature probe continuously (every 30 minutes) collects ambient temperature data inside the chamber. The reader immediately sends the read tag UID (Unique Identifier) ​​to the main control unit. Temperature data (every 30 minutes) is also periodically summarized and sent to the main control unit.

[0058] Data Binding and Logical Processing: After receiving data, the main control unit maintains a connection with the field sampler's handheld mobile terminal (with a dedicated app installed) via Bluetooth or other wireless communication modules. When the app interface prompts "New Sample Insertion," the sampler manually enters the sampling point information for that sample (including: sample number, geographical coordinates, sampling depth, sampling time, and sampler). The app sends this information packet to the main control unit. The main control unit performs a crucial operation, creating a new data record entry in its internal memory or associated memory card, permanently binding the [RFID UID] to the [sampling point information packet]. The main control unit also associates the continuously received temperature-time series data with the currently active (or all bound) sample records, forming an environmental log.

[0059] Logical judgment and alarm: The main control unit compares the real-time temperature with the preset threshold. If the threshold is exceeded, an alarm event record is generated, and the alarm information is immediately pushed to the mobile terminal APP via the wireless communication module.

[0060] Information integration and display: The APP interface displays a list view of samples (sample numbers and basic information of all samples with bound RFID tags), a details view (clicking on any sample displays its complete sampling information, binding time, and corresponding temperature change curve), and system status (current chamber temperature, power, storage capacity, alarm information, etc.).

[0061] See Figure 1 This application provides a specific implementation of a field storage device for soil samples in a land quality geochemical survey.

[0062] The device in this embodiment includes a main housing, an independent sample chamber unit, a temperature control buffer module, and an intelligent identification management system.

[0063] The main body of the container is made of polypropylene composite material, which is lightweight, sturdy, and waterproof. The interior features a matrix of 10×10 regularly arranged square compartments to precisely accommodate 100 individual sample compartment units. The lid is connected to the body via a high-strength hinge, and its interior is sewn with a nylon sampling tool storage bag (for storing shovels, gloves, etc.) and a transparent PVC document bag (for storing field recording paper, labels, etc.).

[0064] The independent sample compartment unit is a removable, rectangular cylindrical container. Its external dimensions fit snugly to the internal contours of the main housing, ensuring no movement after insertion. Each unit includes: Outer protective enclosure: Made of ABS engineering plastic injection molding, providing rigid protection.

[0065] Inner sample container: A Teflon bottle with dimensions of 8 cm (length) × 8 cm (width) × 10 cm (height) is placed inside the outer protective chamber. Its chemical inertness can prevent sample contamination.

[0066] Sealing cap: It has a silicone sealing ring. When tightened, it can form a first seal with the mouth of the inner sample container. At the same time, its upper flange is pressed against the mouth of the outer protective chamber by an O-ring to form a second seal to prevent external dust and moisture from entering.

[0067] Unit Identification Area: A high-frequency passive RFID tag is firmly affixed as an identification chip on the top plane of the outer protective enclosure, which stores a globally unique ID code.

[0068] Figure 2 This is a temperature control buffer module, in which 201 is an aluminum foil composite polyethylene foam board and 202 is a 25℃ organic paraffin phase change material. This module is integrated into the interlayer of the main enclosure wall and the enclosure lid, forming a passive temperature regulation system, which consists of three layers from the outside to the inside: Heat insulation and reflective layer: It uses aluminum foil composite polyethylene foam board. Its bright aluminum foil outer surface can reflect about 85% of solar radiation heat, and the internal closed-cell foam structure has a low thermal conductivity, which together significantly slows down the rate at which external heat is conducted into the box.

[0069] Phase change material layer: Filled with an organic paraffin-based phase change material with a phase change temperature of approximately 25°C. When the outside temperature exceeds 25°C, this material absorbs heat penetrating the insulation layer and gradually melts into a liquid state, maintaining the inside temperature around 25°C during this process. When the outside temperature falls below 25°C, the material releases heat and solidifies, slowing down the temperature drop inside the chamber. Through this absorption and release of latent heat of the solid-liquid phase change, temperature fluctuations inside the chamber are effectively buffered.

[0070] Temperature monitoring: A DS18B20 digital temperature probe extends to the geometric center of the sample chamber matrix inside the chamber to sense the air temperature in the core area. The sensor sends temperature data to the main control unit of the intelligent identification management system every 30 minutes. A small LCD screen on the side of the chamber displays the real-time temperature value for direct viewing by on-site personnel.

[0071] It should be noted that, Figure 2 This is used to show the setup of the temperature control buffer module in the main chamber. The independent sample chamber units and their arrays in the main chamber are not shown.

[0072] The intelligent identification management system uses hardware and software to work together to automate the management of sample information.

[0073] Hardware: A main control unit based on an STM32 series microcontroller is embedded inside the main enclosure. Each compartment has a small RFID reader antenna embedded at the bottom, and all antennas are connected to a centralized high-frequency RFID reader. The main control unit also connects to the aforementioned temperature probe, Bluetooth 4.0 communication module, small display screen, and lithium battery power supply.

[0074] Software and data processing workflow: Event Triggering and Data Acquisition: When a sample compartment unit with an RFID tag is inserted into any compartment, the reader antenna of that compartment immediately senses and activates the tag. The reader reads its UID code within 0.5 seconds and immediately sends it to the main control unit via serial port.

[0075] Data Binding: The main control unit establishes a connection with a dedicated app on the sampler's mobile phone via Bluetooth. After receiving the "New UID" event forwarded by the main control unit, the app displays an information entry interface. The sampler manually enters (or uses the app to automatically fill in the GPS information) the sample point's number, coordinates, depth, time, and personnel information, forming an information packet. The app then sends this information packet back to the main control unit via Bluetooth.

[0076] Logic Processing and Storage: The main control unit creates a new record on its internal MicroSD memory card, permanently associating the received RFID UID with the sampling point information packet. Simultaneously, the system continuously collects temperature-time data and associates it with all bound sample records, creating an independent environmental log.

[0077] Monitoring and Alarms: The main control unit compares the real-time temperature with preset thresholds (e.g., a high-temperature alarm threshold of 30℃ and a low-temperature alarm threshold of 5℃). If the limit is exceeded, the main control unit immediately generates an alarm event and pushes it to the mobile APP via Bluetooth, displaying it prominently on the interface and issuing an audible alert.

[0078] Information Display and Export: The mobile app's main interface displays the numbers and basic information of all bound samples in a list format. Clicking on any list item will take you to a details page, where you can view complete sampling information, binding timestamps, and the corresponding temperature change curves. After the sampling task is completed, the app can generate a PDF electronic report containing all sample information and the entire temperature log for submission and archiving.

[0079] Brief instructions for use: 1. Before sampling, turn on the device and check the system battery level and status via the APP.

[0080] 2. After collecting soil samples, immediately place them into the inner sample container, tighten the sealing cap, and then insert the entire independent sample compartment unit into the empty compartment of the main box.

[0081] 3. Then, the information binding of the sample is completed on the mobile APP.

[0082] 4. Repeat steps 2-3 until all samples for the day have been collected. Place the sampling tools in the storage bag.

[0083] 5. Close the container lid for transport. During transit, the internal temperature can be monitored in real-time via the app, and abnormal alerts will be received.

[0084] 6. After delivery to the laboratory, the receiving personnel can use a handheld RFID reader to quickly count the samples in batches, or scan the electronic report QR code generated by the APP for acceptance, realizing full traceability of samples from the field to the laboratory.

[0085] The key technical solutions of the embodiments of this application include: 1. The physical architecture of “independent storage unit + main container” is based on physical isolation and individual identification.

[0086] 2. The passive temperature control solution of "phase change material + insulation layer" is based on passive constant temperature buffer, which is particularly suitable for outdoor environments without stable power supply.

[0087] 3. The core of the "Identification Carrier (RFID / QR Code) + Intelligent Identification Management System" information solution lies in achieving digital management of samples from the field source. The main control unit is the "brain," responsible for the aggregation, association, storage, and scheduling of all data; the reader / writer is the "identification organ," responsible for collecting the identity ID of the sample container; and the display (including a local screen and an APP) is the "human-machine interface," responsible for providing intuitive feedback to the user with the processed information. The entire process achieves seamless automation from the physical insertion of the sample to the digital binding of information.

[0088] The organic combination and integration of the above three points constitute a complete systematic solution to address the vulnerabilities and traceability issues of soil samples in land quality geochemical surveys.

[0089] The beneficial effects of the embodiments of this application include: 1. Eliminate cross-contamination: Independent sample compartment units achieve physical isolation of each soil sample, with a rigid outer shell to prevent crushing and damage, and double sealing to effectively prevent leakage and contamination.

[0090] 2. Improve sample stability: Temperature control buffer modules (especially phase change materials) can effectively buffer drastic changes in external temperature, providing a more stable microenvironment for volatile components and improving the reliability of detection data.

[0091] 3. Achieve end-to-end traceability: Through an intelligent labeling management system, physical samples are permanently linked to electronic information. Scanning provides access to the entire supply chain, avoiding data loss due to manual recording errors or damaged labels, and significantly improving the efficiency and scientific rigor of sample management.

[0092] 4. Optimize field workflow: The integrated design of the device combines sample storage, tool storage, and information entry functions, making field sampling operations more standardized, convenient, and efficient, and reducing the burden on personnel.

[0093] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0094] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0095] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application 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 this application 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.

[0096] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A field storage device for soil samples in a land quality geochemical survey, characterized in that, The device includes: a main housing, at least one independent sample chamber unit, a temperature control buffer module, and an intelligent labeling management system; The main housing has a regularly arranged matrix of compartments inside, which is used to accommodate the independent sample compartment units. The independent sample compartment unit is an independent, removable cubic container, and the size of the independent sample compartment unit matches the compartment positions of the compartment matrix; the independent sample compartment unit is used to store soil samples; The temperature control buffer module is a passive temperature regulation system, which is installed in the interlayer of the main housing; The intelligent identification management system includes a main control unit, a reader / writer, a display screen, and a power supply, all located in the main housing. The intelligent identification management system is used to process and display the sampling information of soil samples within the independent sample chamber unit.

2. The field storage device for soil samples in a land quality geochemical survey according to claim 1, characterized in that, The main body is made of waterproof material.

3. The field storage device for soil samples in a land quality geochemical survey according to claim 1, characterized in that, Each of the aforementioned independent sample compartment units includes an outer protective compartment, an inner sample container, a sealing cap, and a unit identification area; The outer protective housing has an outer shell; The inner sample container is made of chemically inert material and is placed inside the outer protective chamber to hold soil samples. The sealing cap, together with the inner sample container and the outer protective chamber, forms a double sealing structure; The unit identification area is set at the target position of the outer protective compartment and is used to attach or embed the identification chip.

4. The field storage device for soil samples in a land quality geochemical survey according to claim 1, characterized in that, The temperature control buffer module includes a heat insulation and reflective layer, a phase change material layer, and a temperature monitoring module. The heat-insulating reflective layer is supported by aluminum foil composite foam material and is located outside the phase change material layer; the aluminum foil on the surface of the heat-insulating reflective layer is used to reflect solar radiation heat, and the internal closed-cell foam structure contains still air to form a heat conduction barrier. The phase change material layer is made of paraffin or hydrated salt with a set melting point, and the phase change material layer is filled in the interlayer of the main box wall; the phase change material layer is used to absorb or release heat by utilizing the latent heat of phase change to maintain the temperature inside the main box within a set range. The temperature monitoring module includes a temperature probe, which is located on the outside of the main enclosure. The temperature probe is used to monitor the current temperature of the target area inside the main enclosure, convert the current temperature into a digital signal, and then send it to the main control unit at regular intervals.

5. The field storage device for soil samples in a land quality geochemical survey according to claim 1, characterized in that, The unit identification area of ​​the independent sample compartment unit is used to set an RFID tag; the RFID tag is bound to the sampling information of the soil sample; The reader is used to read the unique identification code stored in the RFID tag and send the unique identification code to the main control unit; The main control unit is used to bind the sampling information of the soil sample to each inserted independent sample chamber unit; wherein, the sampling information includes sample number, geographical coordinates, sampling depth, sampling time and sampling personnel; the unique identification code is bound to the sampling information and a corresponding log is generated.

6. The field storage device for soil samples in a land quality geochemical survey according to claim 5, characterized in that, The sampling information of the soil sample is bound to each inserted independent sample compartment unit via a mobile terminal.

7. A field storage device for soil samples in a land quality geochemical survey according to any one of claims 5 or 6, characterized in that, The temperature probe in the temperature control buffer module collects the current temperature inside the main chamber at a set period and sends it to the main control unit; The main control unit is used to compare the current temperature with a preset temperature warning threshold; If the current temperature exceeds the temperature warning threshold, an alarm event is generated and pushed to the mobile terminal via the wireless communication module.

8. A field storage device for soil samples in a land quality geochemical survey according to claim 7, characterized in that, The temperature warning threshold can be preset by the main control unit or the mobile terminal.

9. A field storage device for soil samples in a land quality geochemical survey according to claim 1, characterized in that, The display screen is used to display at least one of sample information or device status; The sample information includes the sampling information of the soil sample, the binding time, and the corresponding temperature change curve. The device status includes the current temperature, power level, storage capacity, and alarm events within the main enclosure.

10. A method of using a soil sample field storage device, characterized in that, The method of using the soil sample field storage device for land quality geochemical surveys as described in claim 1 includes the following steps: The unique identification code stored in the RFID tag of the independent sample compartment unit is read by the reader of the intelligent identification management system; Read the soil sample bound to the independent sample compartment unit; The sampling information is bound to the corresponding unique identification code and sent to the mobile terminal; The current temperature inside the main chamber is dynamically displayed, and the current temperature is compared with a preset temperature warning threshold. If the current temperature exceeds the temperature warning threshold, an alarm event is generated and pushed to the mobile terminal via the wireless communication module.

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