Method, device, storage medium and electronic device for coal sampling

Abstract

The present disclosure relates to a method, apparatus, storage medium, and electronic device for coal sampling. The method includes: obtaining the number of carriages of a target carriage of a coal-carrying vehicle, where the target carriage is a carriage for carrying coal; determining coal sampling information according to the number of carriages; and sampling the coal carried by the target carriage according to the coal sampling information to obtain a coal sample. In this way, different sampling methods are determined according to the number of coal-carrying vehicles, which is beneficial to reducing the number of coal samples, reducing the time required for sample preparation and chemical analysis, and improving production efficiency.

Description

Technical Field

[0001] The present disclosure relates to the field of coal detection, and specifically, to a method, device, storage medium, and electronic device for coal sampling. Background Art

[0002] The existing coal transportation mainly uses trains as the transportation mode, and the coal transportation carriages are national railway carriages with standard capacities. Coal settlement is mainly based on the metering and testing data at the factory. During the process of coal testing and analysis, it is necessary to sample the coal. The existing sampling method is to conduct primary sampling on the coal at fixed sampling intervals and reduction intervals.

[0003] However, there is a situation of mixed trains from different mining sites in a coal transportation train. The maximum number of mixed coal types in a single train can reach more than 12. The fixed sampling method will result in too many coal samples in the primary sampling, increasing the workload of testing and analysis, and it is difficult to adapt to all incoming coal situations. Summary of the Invention

[0004] To solve the above problems, the present application provides a method, device, storage medium, and electronic device for coal sampling.

[0005] In a first aspect, the present application provides a method for coal sampling, the method including:

[0006] Obtaining the number of carriages of a target carriage of a coal transportation vehicle, where the target carriage is a carriage for carrying coal; determining coal sampling information according to the number of carriages; and sampling the coal carried by the target carriage according to the coal sampling information to obtain a coal sample.

[0007] Optionally, the coal sampling information includes a target sampling time interval; the determining the coal sampling information according to the number of carriages includes: determining the target sampling time interval corresponding to the number of carriages from a plurality of preset time intervals.

[0008] Optionally, the determining the target sampling time interval corresponding to the number of carriages from a plurality of preset time intervals includes: determining the target number range where the number of vehicles is located from a plurality of preset carriage number ranges; determining the target time interval corresponding to the target number range through a preset time correspondence, where the preset time correspondence includes preset time intervals corresponding to different preset carriage number ranges; and using the target time interval as the target sampling time interval.

[0009] Optionally, the target sampling time interval includes a primary sampling interval; the sampling the coal carried by the target carriage according to the coal sampling information to obtain a coal sample includes: sampling the coal carried by the target carriage according to the primary sampling interval to obtain the coal sample.

[0010] Optionally, the target sampling time interval further includes: a primary reduction interval and a secondary reduction interval. Sampling the coal carried in the target carriage according to the initial sampling interval to obtain the coal sample includes: sampling the coal carried in the target carriage according to the initial sampling interval to obtain a sampling sample; for each obtained sampling sample, performing a primary reduction process on the sampling sample according to the primary reduction interval, and performing a secondary reduction process on the sampling sample after the primary reduction process according to the secondary reduction interval to obtain the coal sample.

[0011] Optionally, the coal sampling information further includes a sampling times threshold; the method further includes: stopping sampling when the number of times of sampling the coal carried in the target carriage according to the initial sampling interval reaches the sampling times threshold.

[0012] Optionally, the method further includes: after obtaining the coal sample, performing sample analysis on the coal sample to determine the detection result of the coal quality.

[0013] In a second aspect, the present application provides a coal sampling device, and the device includes:

[0014] An acquisition module, configured to acquire the number of carriages of a target carriage of a coal transport vehicle, where the target carriage is a carriage for carrying coal;

[0015] A determination module, configured to determine coal sampling information according to the number of carriages;

[0016] A sampling module, configured to sample the coal carried in the target carriage according to the coal sampling information to obtain a coal sample.

[0017] Optionally, the coal sampling information includes a target sampling time interval; the determination module is configured to determine the target sampling time interval corresponding to the number of carriages from a plurality of preset time intervals.

[0018] Optionally, the determination module is configured to determine the target number range where the number of vehicles is located from a plurality of preset carriage number ranges; determine the target time interval corresponding to the target number range through a preset time correspondence, where the preset time correspondence includes preset time intervals corresponding to different preset carriage number ranges; and use the target time interval as the target sampling time interval.

[0019] Optionally, the target sampling time interval includes an initial sampling interval; the sampling module is configured to sample the coal carried in the target carriage according to the initial sampling interval to obtain the coal sample.

[0020] Optionally, the target sampling time interval further includes a primary reduction interval and a secondary reduction interval. The sampling module is configured to sample the coal carried in the target carriage at the initial sampling interval to obtain a sampling sample. For each sampling sample obtained, the sampling sample is subjected to a primary reduction process at the primary reduction interval, and the sampled sample after the primary reduction process is subjected to a secondary reduction process at the secondary reduction interval to obtain the coal sample.

[0021] Optionally, the coal sampling information further includes a sampling times threshold. The sampling module is further configured to stop sampling when the number of times of sampling the coal carried in the target carriage at the initial sampling interval reaches the sampling times threshold.

[0022] Optionally, the apparatus further includes a detection module, configured to perform sample analysis on the coal sample after obtaining the coal sample to determine a detection result of the coal quality.

[0023] In a third aspect, the present application provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented.

[0024] In a fourth aspect, the present application provides an electronic device, including: a memory, on which a computer program is stored; a processor, configured to execute the computer program in the memory to implement the steps of the above method.

[0025] By adopting the above technical solution, the coal sampling information is determined according to the number of carriages of the coal transportation vehicle, and sampling is performed according to the sampling information. In this way, different sampling methods are determined according to different numbers of coal-carrying vehicles, which is beneficial to reducing the number of coal samples, reducing the time required for sample preparation and chemical analysis, and improving production efficiency.

[0026] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. They are used to explain the present disclosure together with the following specific implementation, but do not constitute a limitation to the present disclosure. In the drawings:

[0028] Figure 1 is a flowchart of a method for coal sampling according to an exemplary embodiment of the present application;

[0029] Figure 2 is a block diagram of a device for coal sampling according to an exemplary embodiment of the present application;

[0030] Figure 3 It is a block diagram of an electronic device shown according to an exemplary embodiment. Detailed implementation manners

[0031] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0032] First, the application scenario of the present application will be described. The present application is applied to the scenario of coal detection. In this scenario, it is necessary to first sample the coal.

[0033] In the existing coal sampling, the coal is first unloaded from the carriage onto the conveyor belt, and then the coal is sampled from the middle of the conveyor belt. Its main sampling process is a "primary sampling, first-stage reduction, second-stage reduction" structure. The main sampling workflow is: primary sampling head (opening width 450 mm) → coal dropping pipe → primary feeding conveyor belt → first-stage crusher (output 25 mm) → first-stage belt scraping type splitter → second-stage crusher (output 13 mm) → second-stage belt scraping type splitter → raw coal sample bucket packaging, and the waste is returned to the main conveyor belt through a bucket elevator. Among them, the sampling method is mainly to sample the coal at fixed time intervals through the primary sampling head, and then perform reduction processing on the sampling results at fixed time intervals. However, in the existing sampling method, in order to ensure that enough analysis samples are collected when the amount of coal is small, the sampling time interval will be short. As a result, when sampling with the same time interval when the amount of coal is large, too many analysis samples are collected, increasing the workload of chemical analysis, and then prolonging the time of the entire coal detection and affecting production efficiency.

[0034] To solve the above problems, the present application proposes a method, device, storage medium and electronic device for coal sampling. By obtaining the number of carriages of the target carriage of the coal-carrying vehicle, where the target carriage is the carriage for carrying coal; determining the coal sampling information according to the number of carriages; and sampling the coal carried by the target carriage according to the coal sampling information to obtain a coal sample. In this way, different sampling methods are determined according to different numbers of coal-carrying carriages, which is beneficial to reducing the number of coal samples, reducing the time required for sample preparation and chemical analysis, and improving production efficiency.

[0035] Figure 1 It is a flowchart of a method for coal sampling shown according to an exemplary embodiment of the present application, as Figure 1 shown, the method includes:

[0036] S101. Obtain the number of carriages of the target carriage of the coal-carrying vehicle.

[0037] Among them, the target carriage is a carriage for carrying coal, and the number of the target carriages is in a proportional relationship with the total amount of coal. Obtain the number of the target carriages so as to adopt corresponding sampling methods according to different degrees of total coal amounts.

[0038] For example, the number of carriages of the target carriage input manually can be obtained. When the number of carriages is less than or equal to the first preset number of sections, it indicates that the total amount of coal is small, and sampling can be carried out at a higher sampling frequency so as to obtain a sufficient number of samples. When the number of carriages is greater than or equal to the second preset number of sections, it indicates that the total amount of coal is large, and sampling can be carried out at a lower sampling frequency so as to reduce the excessive number of samples.

[0039] S102. Determine coal sampling information according to the number of carriages.

[0040] Exemplarily, coal sampling information can be determined according to a preset corresponding relationship, and the coal sampling information can be used to represent the time interval, sampling order or sampling steps of coal sampling, etc.

[0041] For example, the coal sampling information can represent the sampling order or sampling steps. According to the existing sampling order, the sampling steps include: primary sampling, primary crushing, primary reduction, secondary crushing, and secondary reduction. Therefore, according to the number of carriages, corresponding sampling orders or sampling steps can be preset according to actual production requirements so as to improve production efficiency.

[0042] S103. Sample the coal carried by the target carriage according to the coal sampling information to obtain a coal sample.

[0043] For example, when the coal sampling information represents the time interval of coal sampling, when sampling the coal carried by the target carriage, sampling can be carried out according to the sampling interval determined through a preset corresponding relationship.

[0044] In addition, after obtaining the coal sample, sample analysis is carried out on the coal sample to determine the test result of the coal.

[0045] Exemplarily, indexes such as calorific value, sulfur content, ash content, volatile matter, fixed carbon, char residue characteristics, total moisture, and analysis moisture of the coal sample are obtained, and according to a preset judgment standard, through the analysis indexes of the coal sample, it is judged whether the batch of coal is qualified to obtain the test result of the coal. In this way, by analyzing the sample and obtaining the indexes and test results of the sample coal, the coal quality of all the coal in this batch can be represented, which is beneficial to improving the accuracy and efficiency of coal detection.

[0046] By adopting the above method, the sampling information of coal is determined according to the number of compartments of the coal transport vehicle, and sampling is carried out according to the sampling information. In this way, different sampling methods are determined according to different coal transport situations, which is beneficial to reducing the number of coal samples, reducing the time required for sample preparation and chemical analysis, and improving production efficiency.

[0047] In some embodiments, in the above step S102, the coal sampling information may include a target sampling time interval. Correspondingly, step S102 may be implemented in the following manner: The target sampling time interval corresponding to the number of compartments may be determined from multiple preset time intervals.

[0048] Exemplarily, taking the coal transport method as train transport as an example, since the compartment capacity of coal transport is the same, the total amount of coal can be divided in advance according to the number of compartments, and then the corresponding target sampling time interval can be determined according to the divided total amount of coal, that is, the target number range where the vehicle number is located is determined from multiple preset compartment number ranges.

[0049] For example, the target number range is determined according to the number of compartments of the coal transport train as shown in Table 1 below:

[0050] Number of carriages (sections) Target quantity range [1，2] First target quantity range [3，5] Second target quantity range [6，10] Third target quantity range [11，25] Fourth target quantity range [26，40] Fifth target quantity range [41，55] Sixth target quantity range 56 sections and above Seventh target quantity range

[0051] Table 1

[0052] As shown in Table 1, when the number of compartments is 2 or less, it corresponds to the first target number range; when the number of compartments is 3 - 5, it corresponds to the second target number range; when the number of compartments is 6 - 10, it corresponds to the third target number range; when the number of compartments is 11 - 25, it corresponds to the fourth target number range; when the number of compartments is 26 - 40, it corresponds to the fifth target number range; when the number of compartments is 41 - 55, it corresponds to the sixth target number range; when the number of compartments is 56 or more, it corresponds to the seventh target number range; then the target time interval corresponding to different target number ranges is determined according to the preset time correspondence relationship, and the coal is sampled using the target time interval as the target sampling time interval.

[0053] In a possible implementation manner, the target time interval corresponding to the target number range may be determined through the preset time correspondence relationship, and the target time interval is used as the target sampling time interval, where the preset time correspondence relationship includes the preset time intervals corresponding to different preset compartment number ranges.

[0054] In some embodiments, the target sampling time interval may include an initial sampling interval. Different sampling intervals may be preset for different target number ranges, and according to the correspondence relationship between the target number range and the sampling interval, the sampling interval can be determined through the target number range.

[0055] For example, the correspondence between the target quantity range and the sampling interval can be as shown in Table 2 below:

[0056] Target quantity range Initial sampling interval (s) First target quantity range 60 Second target quantity range 60 Third target quantity range 65 Fourth target quantity range 80 Fifth target quantity range 90 Sixth target quantity range 100 Seventh target quantity range 105

[0057] Table 2

[0058] As shown in Table 2, when the number of carriages is within the first target quantity range, the corresponding initial sampling interval can be 60 s; when the number of carriages is within the second target quantity range, the corresponding initial sampling interval can be 60 s; when the number of carriages is within the third target quantity range, the corresponding initial sampling interval can be 65 s; when the number of carriages is within the fourth target quantity range, the corresponding initial sampling interval can be 80 s; when the number of carriages is within the fifth target quantity range, the corresponding initial sampling interval can be 90 s; when the number of carriages is within the sixth target quantity range, the corresponding initial sampling interval can be 100 s; and when the number of carriages is within the seventh target quantity range, the corresponding initial sampling interval can be 150 s.

[0059] In this way, by determining the initial sampling interval according to different target quantity ranges and sampling the coal carried by the target carriage at this initial sampling interval to obtain the coal sample, the number of sampling samples can be adjusted according to actual production requirements, which is conducive to reasonably obtaining the number of sampling samples, improving the efficiency of subsequent sample preparation and chemical analysis of the coal sample, and avoiding inaccurate test results caused by fewer samples in the case of a small total amount of coal or redundant samples and too long chemical analysis time in the case of a large total amount of coal.

[0060] In some other embodiments, the target sampling time interval further includes a reduction interval, and the reduction interval includes a primary reduction interval and a secondary reduction interval. As in the above embodiments, after sampling the coal carried by the target carriage at the initial sampling interval to obtain a sampling sample, the sampling sample obtained by the initial sampling needs to be reduced. For each sampling sample obtained, it is subjected to a primary reduction process according to the primary reduction interval, and the sampling sample after the primary reduction process is subjected to a secondary reduction process according to the secondary reduction interval to obtain the coal sample.

[0061] Exemplarily, different reduction intervals can be preset for different target quantity ranges, and according to the correspondence between the target quantity range and the reduction interval, the reduction interval can be determined by the target quantity range.

[0062] For example, based on Table 2, the correspondence between the target quantity range and the reduction interval can be as shown in Table 3 below:

[0063] Target quantity range Initial sampling interval (s) Primary reduction interval (s) Secondary reduction interval (s) First target quantity range 60 0 0 Second target quantity range 60 1 0 Third target quantity range 65 1 1 Fourth target quantity range 80 1 1 Fifth target quantity range 90 1 2 Sixth target quantity range 100 1 3 Seventh target quantity range 105 1 3

[0064] Table 3

[0065] As shown in Table 3, when the number of carriages is within the first target quantity range, the corresponding primary reduction interval can be 0 s, and the secondary reduction interval can be 0 s; when the number of carriages is within the second target quantity range, the corresponding primary reduction interval can be 1 s, and the secondary reduction interval can be 0 s; when the number of carriages is within the third target quantity range, the corresponding primary reduction interval can be 1 s, and the secondary reduction interval can be 1 s; when the number of carriages is within the fourth target quantity range, the corresponding primary reduction interval can be 1 s, and the secondary reduction interval can be 1 s; when the number of carriages is within the fifth target quantity range, the corresponding primary reduction interval can be 1 s, and the secondary reduction interval can be 2 s; when the number of carriages is within the sixth target quantity range, the corresponding primary reduction interval can be 1 s, and the secondary reduction interval can be 3 s; when the number of carriages is within the seventh target quantity range, the corresponding primary reduction interval can be 1 s, and the secondary reduction interval can be 3 s.

[0066] In this way, on the basis of determining the sampling interval through different target quantity ranges, by determining the reduction interval through different target quantity ranges, the number of sampling samples can be further reasonably adjusted, avoiding the situation of fewer samples when the total amount of coal is small, resulting in inaccurate test results, or redundant samples and too long assay analysis time when the total amount of coal is large.

[0067] In addition, when the number of times of sampling the coal carried by the target carriage according to the initial sampling interval reaches the sampling times threshold, stop sampling.

[0068] Among them, the sampling times threshold can be determined by the target quantity range where the number of carriages is located. According to the corresponding relationship between the target quantity range and the preset sampling times threshold, determine the sampling times threshold through the number of carriages, or sample the coal carried by the target carriage according to the initial sampling interval and reduction interval in the above embodiment until all the coal is sampled and then stop sampling.

[0069] It should be noted that in order to ensure the accuracy of the sampling result, the number of the final sampling samples needs to be greater than or equal to the preset sampling times, that is, obtain the actual sampling times after sampling ends; when the actual sampling times is less than the sampling times threshold, sample the coal according to the difference between the sampling times threshold and the actual sampling times. Resampling the coal can be carried out by transporting the coal again through a coal transfer belt for sampling, or through various methods such as manual sampling, and this application does not limit here.

[0070] Figure 2This is a block diagram of a coal sampling device shown according to an exemplary embodiment of the present application. As Figure 2 shown, the device includes:

[0071] An acquisition module 201, configured to acquire the number of carriages of a target carriage of a coal-carrying vehicle, where the target carriage is a carriage for carrying coal;

[0072] A determination module 202, configured to determine coal sampling information according to the number of carriages;

[0073] A sampling module 203, configured to sample the coal carried by the target carriage according to the coal sampling information to obtain a coal sample.

[0074] Optionally, the coal sampling information includes a target sampling time interval; the determination module 202 is configured to determine the target sampling time interval corresponding to the number of carriages from multiple preset time intervals.

[0075] Optionally, the determination module 202 is configured to determine the target number range where the number of vehicles is located from multiple preset carriage number ranges; determine the target time interval corresponding to the target number range through a preset time correspondence relationship, where the preset time correspondence relationship includes preset time intervals corresponding to different preset carriage number ranges; and use the target time interval as the target sampling time interval.

[0076] Optionally, the target sampling time interval includes an initial sampling interval; the sampling module 203 is configured to sample the coal carried by the target carriage according to the initial sampling interval to obtain the coal sample.

[0077] Optionally, the target sampling time interval further includes: a primary reduction interval and a secondary reduction interval. The sampling module 203 is configured to sample the coal carried by the target carriage according to the initial sampling interval to obtain a sampling sample; for each sampling sample obtained, perform a primary reduction process on the sampling sample according to the primary reduction interval, and perform a secondary reduction process on the sampling sample after the primary reduction process according to the secondary reduction interval to obtain the coal sample.

[0078] Optionally, the coal sampling information further includes a sampling times threshold; the sampling module 203 is further configured to stop sampling when the number of times of sampling the coal carried by the target carriage according to the initial sampling interval reaches the sampling times threshold.

[0079] Optionally, the device further includes: a detection module 204, configured to perform sample analysis on the coal sample after obtaining the coal sample to determine the detection result of the coal quality.

[0080] By using the above technical device, the sampling information of coal is determined according to the number of compartments of the coal transport vehicle, and sampling is carried out according to the sampling information. In this way, different sampling methods are determined according to different numbers of coal-carrying vehicles, which is beneficial to reducing the number of coal samples, reducing the time required for sample preparation and chemical analysis, and improving production efficiency.

[0081] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0082] Figure 3 is a block diagram of an electronic device 300 shown according to an exemplary embodiment. As Figure 3 shown, the electronic device 300 may include: a processor 301, a memory 302. The electronic device 300 may further include one or more of a multimedia component 303, an input / output (I / O) interface 304, and a communication component 305.

[0083] Among them, the processor 301 is used to control the overall operation of the electronic device 300 to complete all or part of the steps in the above coal sampling method. The memory 302 is used to store various types of data to support the operation of the electronic device 300. These data may include, for example, instructions for any application or method operating on the electronic device 300, as well as application-related data, such as contact data, sent and received messages, pictures, audio, video, and so on. The memory 302 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disc. The multimedia component 303 may include a screen and an audio component. The screen can be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal can be further stored in the memory 302 or sent through the communication component 305. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 304 provides an interface between the processor 301 and other interface modules, and the above other interface modules can be a keyboard, a mouse, buttons, etc. These buttons can be virtual buttons or physical buttons. The communication component 305 is used for wired or wireless communication between the electronic device 300 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 305 may include: a Wi-Fi module, a Bluetooth module, an NFC module, and so on.

[0084] In an exemplary embodiment, the electronic device 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for performing the above-described coal sampling method.

[0085] In another exemplary embodiment, there is also provided a computer-readable storage medium including program instructions, which when executed by a processor, implement the steps of the above-described coal sampling method. For example, the computer-readable storage medium may be the above-described memory 302 including program instructions, and the above program instructions may be executed by the processor 301 of the electronic device 300 to complete the above-described coal sampling method.

[0086] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0087] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.

[0088] Furthermore, any combination can be made among the various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A method for coal sampling, characterized in that, the method includes: obtaining the number of carriages of the target carriage of the coal-carrying vehicle, where the target carriage is the carriage for carrying coal; determining the target number range where the number of carriages is located from multiple preset number-of-carriage ranges; determining the target time interval corresponding to the target number range through a preset time correspondence, where the preset time correspondence includes preset time intervals corresponding to different preset number-of-carriage ranges; taking the target time interval as the target sampling time interval corresponding to the number of carriages; sampling the coal carried by the target carriage according to the target sampling time interval to obtain a coal sample; stopping sampling when the number of times of sampling the coal carried by the target carriage according to the target sampling time interval reaches the sampling times threshold; the sampling times threshold is determined by the following method: determining the sampling times threshold through the number of carriages according to the correspondence between the target number range where the number of carriages is located and the preset sampling times threshold.

2. The method according to claim 1, characterized in that, the target sampling time interval includes an initial sampling interval; the sampling the coal carried by the target carriage according to the target sampling time interval to obtain a coal sample includes: sampling the coal carried by the target carriage according to the initial sampling interval to obtain the coal sample.

3. The method according to claim 2, characterized in that, the target sampling time interval further includes: a primary reduction interval and a secondary reduction interval, and the sampling the coal carried by the target carriage according to the initial sampling interval to obtain the coal sample includes: sampling the coal carried by the target carriage according to the initial sampling interval to obtain a sampling sample; for each obtained sampling sample, performing a primary reduction process on the sampling sample according to the primary reduction interval, and performing a secondary reduction process on the sampling sample after the primary reduction process according to the secondary reduction interval to obtain the coal sample.

4. The method according to claim 3, characterized in that, the method further includes: after obtaining the coal sample, performing sample analysis on the coal sample to determine the detection result of the coal quality.

5. A device for coal sampling, characterized in that, the device includes: an obtaining module, configured to obtain the number of carriages of the target carriage of the coal-carrying vehicle, where the target carriage is the carriage for carrying coal; a determining module, configured to determine the target number range where the vehicle number is located from multiple preset number-of-carriage ranges; determining the target time interval corresponding to the target number range through a preset time correspondence, where the preset time correspondence includes preset time intervals corresponding to different preset number-of-carriage ranges; taking the target time interval as the target sampling time interval corresponding to the number of carriages; A sampling module, configured to sample the coal carried in the target carriage at the target sampling time interval to obtain a coal sample; and stop sampling when the number of times of sampling the coal carried in the target carriage at the target sampling time interval reaches the sampling times threshold. The sampling times threshold is determined by the following method: The determination module determines the sampling times threshold according to the correspondence between the target quantity range where the carriage quantity is located and the preset sampling times threshold, based on the carriage quantity.

6. A non-transitory computer-readable storage medium, on which a computer program is stored, characterized in that when the program is executed by a processor, it implements the steps of the method according to any one of claims 1-4.

7. An electronic device, characterized in that it includes: a memory, on which a computer program is stored; a processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1-4.

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