Online sampling device and system

Abstract

The utility model discloses an on-line sampling device and system. The on-line sampling device comprises a first moving assembly for driving a material vehicle to move along a first direction; the sampling head is arranged above the first moving assembly and is used for collecting materials; the second moving assembly is used for driving the sampling head to move along a second direction; the lifting assembly is arranged between the sampling head and the second moving assembly. Compared with the prior art, the on-line sampling device and the on-line sampling system provided by the utility model have the advantages that the erection cost of the cart track can be reduced, the sampling time is shortened, and the efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of material sampling in the transportation industry, and more specifically, to an online sampling device and system. Background Art

[0002] Large factories such as thermal power plants and ore processing plants have a large amount of materials transported in every day. The materials mainly refer to coal or ore. In order to understand the composition of the materials entering the factory, it is necessary to take certain material samples from each material transport vehicle according to relevant standards.

[0003] The traditional sampling device includes a trolley, a trolley track, a small trolley and a sampling head. The trolley track is erected high in the air and extends along the length of the material trolley. The trolley is provided on the trolley, which moves along the width of the material trolley. The sampling head is provided on the trolley. During the entire sampling process, the material trolley does not move, but the sampling head moves along the length and width of the material trolley through the movement of the trolley and the small trolley.

[0004] The current method has high construction costs for the trolley track, and the process of moving the sampling head to the sampling point requires the trolley to move to the length coordinate position of the sampling point, the trolley to move to the width coordinate position of the sampling point, the sampling head to descend and ascend, and the trolley and trolley to reset. The sampling is time-consuming and inefficient.

[0005] Therefore, there is an urgent need for an online sampling device, system and method that can reduce the cost of trolley track installation, shorten the sampling time and be more efficient. Utility Model Content

[0006] In order to solve the above technical problems, the present application provides an online sampling device and method, which can reduce the cost of trolley track installation, shorten the sampling time, and be more efficient.

[0007] The technical solutions provided in this application are as follows:

[0008] An online sampling device, comprising:

[0009] A first moving assembly for driving the material vehicle to move in a first direction;

[0010] A sampling head disposed above the first moving assembly and used for collecting materials;

[0011] a second moving component for driving the sampling head to move along a second direction;

[0012] A lifting assembly is provided between the sampling head and the second moving assembly.

[0013] Preferably, the second moving component comprises:

[0014] A bracket, wherein a hollow area is provided on the bracket;

[0015] A second transport trolley is provided on the bracket, the sampling head is provided at the bottom of the second transport trolley, and the lifting assembly is used to drive the sampling head to pass through the hollow area for sampling;

[0016] A guide member is provided on the bracket and is used to constrain the second conveying trolley to move along the second direction.

[0017] Preferably, the first moving component includes:

[0018] A first conveying trolley is provided with a support platform for placing a material trolley;

[0019] A first driving member is used to drive the first conveying trolley to move along a first direction.

[0020] Preferably, the first moving component further includes:

[0021] The anti-lifting structures are arranged on both sides of the first conveying trolley, and the anti-lifting structures are arranged at intervals along the length direction of the first conveying trolley.

[0022] Preferably, the first moving component further includes:

[0023] provided at one end of the first conveying trolley, and used for guiding the material trolley to drive into the first inclined surface of the supporting platform;

[0024] It is arranged at one end of the first conveying trolley away from the first inclined surface, and is used to guide the material vehicle to leave the second inclined surface of the support platform.

[0025] Preferably, it also includes:

[0026] The sample preparation component is arranged on one side of the first moving component, and is used to receive the material collected by the sampling head and perform online sample preparation.

[0027] An online sampling system, comprising:

[0028] Determination means, the determination module is used to determine N sampling areas according to the contour of the vehicle material;

[0029] An acquisition device, wherein the acquisition module is used to acquire a sampling point of the i-th sampling area from the N sampling areas;

[0030] A collecting device, the collecting device is used to collect materials at a sampling point in the i-th sampling area;

[0031] Wherein, the collection device is any one of the online sampling devices described above.

[0032] Preferably, the acquisition device includes:

[0033] Mounting seat;

[0034] a three-dimensional laser scanner rotatably connected to the mounting base and configured to acquire image information of the i-th sampling area;

[0035] A selector is connected to the three-dimensional laser scanner, receives the image information, and selects a sampling point of the i-th sampling area.

[0036] Preferably,

[0037] There are at least three three-dimensional laser scanners, which are respectively arranged above and on both sides of the first moving component.

[0038] The online sampling device provided by the present invention comprises a first movable assembly, a sampling head, a second movable assembly, and a lifting assembly. The first movable assembly is configured to move a material cart in a first direction. The sampling head is positioned above the first movable assembly and is configured to collect material at a sampling point on the material cart. The second movable assembly is configured to move the sampling head in a second direction. The lifting assembly is positioned between the second movable assembly and the sampling head and is configured to lift and lower the sampling head. After determining the sampling point, the first movable assembly simultaneously moves the material cart in the first direction while the second movable assembly moves the sampling head in the second direction, positioning the sampling head directly above the sampling point. The lifting assembly then extends the sampling head for sampling. The first movable assembly can be mounted directly on the ground, eliminating the need for overhead rails and reducing the cost of installing rails. Furthermore, the first and second movable assemblies respectively move the material cart and the sampling head, shortening sampling time. The second movable assembly does not require the involvement of the first movable assembly in the unloading and repositioning processes of the sampling head. Furthermore, the second movable assembly has a shorter travel distance, further shortening the sampling process and improving sampling efficiency. It can be seen that compared with the prior art, the online sampling device in the embodiment of the utility model can reduce the cost of trolley track installation, shorten the sampling time, and is more efficient.

[0039] The utility model also provides an online sampling system, including the above-mentioned online sampling device, which can also reduce the cost of trolley track installation, shorten the sampling time, and be more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 A schematic structural diagram of a first perspective of an online sampling device provided by an embodiment of the present utility model;

[0042] Figure 2 A structural schematic diagram of a second perspective of the online sampling device provided by an embodiment of the present utility model;

[0043] Figure 3 A structural diagram of an online sampling system provided in an embodiment of the utility model.

[0044] Figure numerals: 1. Material cart; 2. First moving assembly; 3. Sampling head; 4. Second moving assembly; 5. Sample preparation assembly; 6. Three-dimensional laser scanner; 21. First conveying trolley; 22. Support platform; 23. Anti-lifting structure; 24. First inclined plane; 25. Second inclined plane; 41. Bracket; 42. Hollow area; 43. Second conveying trolley; 44. Guide member. DETAILED DESCRIPTION

[0045] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0046] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0049] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0050] The embodiments of the present invention are written in a progressive manner.

[0051] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides an online sampling device, including: a first moving component 2 for driving a material cart 1 to move along a first direction; a sampling head 3 arranged above the first moving component 2 for collecting materials; a second moving component 4 for driving the sampling head 3 to move along a second direction; and a lifting component arranged between the sampling head 3 and the second moving component 4.

[0052] The online sampling device in the existing technology requires the construction of an aerial mobile platform for the movement of a large cart and a small cart. The material cart does not move on the ground, but the sampling head 3 is driven by the large cart to move along the length direction of the material cart, and the sampling head 3 is driven by the small cart to move along the width direction of the material cart 1. During the sampling, unloading and resetting processes, the sampling head 3 needs to be moved to the sampling point in turn by the large cart and the small cart. On the one hand, the cost of the aerial mobile platform is high. On the other hand, the moving path of the large cart and the small cart is long, and they cannot move at the same time. The sampling process is time-consuming and the sampling efficiency is low.

[0053] In order to solve the above problems, the online sampling device provided by the present invention is first provided with a first moving component 2, a sampling head 3, a second moving component 4 and a lifting component, wherein the first moving component 2 is used to drive the material cart 1 to move along the first direction, the sampling head 3 is arranged above the first moving component 2, and the sampling head 3 is used to collect materials at the sampling point on the material cart 1, the second moving component 4 is used to drive the sampling head 3 to move along the second direction, and the lifting component is arranged between the second moving component 4 and the sampling head 3, and is used to drive the sampling head 3 to move up and down. After the sampling point is determined, the first moving component 2 drives the material cart 1 to move along the first direction, while the second moving component 4 drives the sampling head 3 to move along the second direction, so that the sampling head 3 is located directly above the sampling point, and the lifting component drives the sampling head 3 to extend for sampling. On the one hand, the first moving component 2 can be directly set on the ground without the need to set up an overhead track, which can reduce the cost of track installation. On the other hand, the first moving component 2 and the second moving component 4 respectively drive the material vehicle 1 and the sampling head 3 to move, which can shorten the sampling time. The second moving component 4 does not require the participation of the first moving component 2 in the process of driving the sampling head 3 to unload and reset the material, and the second moving component 4 has a shorter movement stroke, which further shortens the sampling process time and has higher sampling efficiency. It can be seen that compared with the prior art, the online sampling device in the embodiment of the utility model can reduce the cost of trolley track installation, shorten the sampling time, and is more efficient.

[0054] It should be noted that the first direction in the embodiment of the present invention specifically refers to the length direction of the material vehicle 1 , and the second direction in the embodiment of the present invention specifically refers to the width direction of the material vehicle 1 .

[0055] In the above structure, as one of the specific implementation methods, the second moving component 4 in the embodiment of the utility model includes a bracket 41, a hollow area 42 is provided on the bracket 41, a second conveying trolley 43 is provided on the bracket 41, the sampling head 3 is provided at the bottom of the second conveying trolley 43, the lifting component is used to drive the sampling head 3 through the hollow area 42 for sampling, and a guide member 44 is provided on the bracket 41 for limiting and constraining the second conveying trolley 43 to move along the second direction.

[0056] Furthermore, as one of the implementation modes, the guide member 44 in the embodiment of the utility model is specifically a guide rail, which is arranged on both sides of the bracket 41. The guide rail is used in conjunction with the walking wheels of the second conveying trolley 43 to limit and constrain the direction of movement of the second conveying trolley 43.

[0057] Furthermore, as one of the implementation modes, the second transport trolley 43 in the embodiment of the present utility model is specifically a small trolley, and the guide member 44 in the embodiment of the present utility model is specifically a small trolley track steel structure.

[0058] By moving the material vehicle 1 along the first direction on the ground through the first transport trolley 21 , only the track steel structure of the second transport trolley 43 needs to be constructed, and the cost of the steel structure is significantly reduced.

[0059] In the above structure, as one embodiment, the first moving assembly 2 in the embodiment of the present invention includes a first conveying trolley 21, a first driving member, and an anti-lifting structure 23. The first conveying trolley 21 is provided with a support platform 22, and the first driving member is used to drive the first conveying trolley 21 to move in a first direction. The material cart 1 moves to the support platform 22 to stop moving, and is driven to move in the first direction by the first conveying trolley 21. The first conveying trolley 21 moves on the ground, eliminating the need for an overhead mobile platform for the first conveying trolley 21, which is more convenient.

[0060] In order to prevent one end of the first conveying trolley 21 from tilting up when the material cart 1 moves onto the support platform 22 or leaves the support platform 22, as one of the implementation methods, anti-lifting structures 23 are provided on both sides of the first conveying trolley 21 in the embodiment of the utility model, wherein the anti-lifting structures 23 are arranged at intervals on both sides of the first conveying trolley 21, and the anti-lifting structures 23 are used to prevent the center of gravity of the first conveying trolley 21 from being unstable and causing the two ends of the first conveying trolley 21 to lift up.

[0061] The anti-lifting structure 23 in the embodiment of the present invention may be a counterweight.

[0062] Furthermore, as one specific implementation method, the first transport trolley 21 in the embodiment of the present invention uses rubber wheels to move directly on the ground or on tracks.

[0063] When the first transport trolley 21 moves on the track, the anti-lifting structure 23 in the embodiment of the utility model is further provided with lateral guide wheels, which are used in conjunction with the track to constrain the moving direction of the first transport trolley 21 and guide it to prevent deviation.

[0064] Furthermore, as a first embodiment, the first driving member in the embodiment of the present invention can directly drive the wheels of the first conveying trolley 21 to rotate. As a second embodiment, the first driving member in the embodiment of the present invention can pull the end of the first conveying trolley 21 through a chain or a wire rope to drive the first conveying trolley 21 to move. As a third embodiment, the first driving member can also drive the first conveying trolley 21 to move along the first direction through a gear rack.

[0065] In the above structure, as one of the implementation modes, the support platform in the embodiment of the present utility model is flush with the ground, and the material vehicle can directly drive onto the support platform.

[0066] In the above structure, as one of the embodiments, when the support platform is not flush with the ground, in order to facilitate the movement of the material cart 1 onto the support platform 22 of the first conveying cart 21, the first moving component 2 in the embodiment of the utility model further includes a first inclined surface 24 and a second inclined surface 25, wherein the first inclined surface 24 is provided at one end of the first conveying cart 21, and the first inclined surface 24 is used to guide the material cart 1 onto the support platform 22, and the second inclined surface 25 is provided at one end of the first conveying cart 21 away from the first inclined surface 24, and the second inclined surface 25 is used to guide the material cart 1 away from the support platform 22. Since there may be a height difference between the support platform 22 and the ground, the first inclined surface 24 and the second inclined surface 25 are provided to facilitate the movement of the material cart 1 onto the support platform 22, which is more convenient.

[0067] Furthermore, the support platform 22 in the embodiment of the present invention is arranged above the ground, and the two ends of the first inclined surface 24 are respectively connected to the support platform 22 and the ground, so as to facilitate the material vehicle 1 traveling on the ground to enter or leave the support platform 22.

[0068] Furthermore, as one of the implementation methods, the online sampling device in the embodiment of the present invention also includes a sample preparation component 5, which is arranged on one side of the first moving component 2. The sample preparation component 5 is used to receive the material sample collected by the sampling head 3 and perform online sample preparation without the need for transportation through an additional mechanism.

[0069] As a specific implementation method, the sampling head 3 in the embodiment of the utility model is specifically a claw-type sampling head 3. When the sampling head 3 completes the sample collection at a collection point, the second moving component 4 drives the sampling head 3 to move to the unloading point for unloading. During this process, the first moving component 2 can move the material cart 1 to the next sampling point for sampling, thereby improving the sampling efficiency of the claw-type sampling head 3 for single collection and unloading.

[0070] As another embodiment, the sampling head 3 in the embodiment of the present invention may also be a sampling head 3 with a material storage function. After the sampling head 3 completes sampling of all sampling points of the material vehicle 1, it will then unload the material.

[0071] Please Figure 3 As shown, the present invention also provides an online sampling system, including a determination device, an acquisition device, and a collection device. The determination device is used to determine N sampling areas based on the contour of the entire vehicle material, the acquisition device is used to obtain the sampling point of the i-th sampling area from the N sampling areas, and the collection device is used to collect material at the sampling point of the i-th sampling area. The collection device is specifically the above-mentioned online sampling device. This also achieves the technical effect of reducing the cost of constructing the trolley track, shortening the sampling time, and improving efficiency.

[0072] Existing technology primarily uses ultrasonic distance sensors and infrared diffuse reflection photoelectric switches to obtain sampling points for material trucks. These sensors are installed inside an infrared sensor-ultrasonic box. When a material transport vehicle enters the sampling area, it passes by the side of the infrared sensor-ultrasonic box. The infrared switch senses the rear of the vehicle, determining the origin coordinates along its length. The sampling area is then calculated based on the pre-entered vehicle length and width information. Sampling begins after randomly generating sampling points. However, existing methods only determine the horizontal origin coordinates of the vehicle, failing to obtain detailed dimensions such as length, width, and height, nor to monitor detailed features like lacing. Data must be manually measured and entered, potentially subject to measurement errors or data entry errors.

[0073] In the above system, the acquisition device in the embodiment of the utility model includes a three-dimensional laser scanner 6, a mounting seat and a selector. The three-dimensional laser scanner 6 is rotatably connected to the mounting seat. The three-dimensional laser scanner 6 can scan various parts of the material vehicle 1 by rotating itself. The three-dimensional laser scanner 6 is used to obtain the image information of the i-th sampling area. The selector is connected to the three-dimensional laser scanner 6 for receiving the image information and selecting the sampling point of the i-th sampling area.

[0074] On the one hand, compared with the ultrasonic ranging sensors and infrared diffuse reflection photoelectric switches in the prior art, three-dimensional laser scanning is more accurate in positioning the carriage, and can measure the dimensional information in the depth direction of the carriage, which can shorten the protection distance and reduce the sampling blind area. The three-dimensional laser scanner 6 can measure the outline of the material vehicle 1, the length, width and height of the carriage, and detailed features such as the reinforcement of the carriage, replacing the existing manual measurement and reducing manual intervention. On the other hand, the bottom of the carriage of some vehicles is in the shape of a step. In order to avoid damaging the vehicle during sampling, the sampling depth limit is generally set above the step at the bottom of the carriage, resulting in a large sampling blind area. In the embodiment of the utility model, the three-dimensional laser scanner 6 is used to scan the empty carriage, which can accurately locate the scope of the mining area in the depth direction of the carriage, reduce the sampling blind area, and achieve zero protection distance sampling at the bottom of the carriage.

[0075] Furthermore, the selector is connected to the first moving component 2 and the second moving component 4. Based on the sampling point selected by the selector, the first moving component 2 drives the material cart 1 to move in the first direction, and the second moving component 4 drives the sampling head 3 to move in the second direction until the sampling head 3 is directly above the sampling point.

[0076] Furthermore, one three-dimensional laser scanner 6 can be provided, and the three-dimensional laser scanner 6 is provided above the first moving component 2 .

[0077] Furthermore, in the embodiment of the present invention, at least three 3D laser scanners 6 are provided, and are respectively arranged above and on both sides of the first movable assembly 2, so that the scanning results are more accurate. More specifically, one of the 3D laser scanners 6 is mounted on the bracket 41 of the second movable assembly 4.

[0078] In order to better understand the online sampling system for which protection is sought in the present invention, the present invention further provides an online sampling method for use in the above-mentioned online sampling system, the method comprising the following steps:

[0079] S1. Determine N sampling areas based on the vehicle material profile;

[0080] In order to obtain a sample whose composition and characteristics can represent a batch of sampled materials, the basic principle of sampling is that each particle in the sampled material has an equal probability of being collected by the sampling head. To improve the authenticity of the sample, it is necessary to sample materials from multiple locations on the material truck.

[0081] The whole vehicle material outline here refers to the outline of the sampling area, that is, the area excluding the structure of the material vehicle itself.

[0082] In order to facilitate sampling of materials at multiple locations on the material vehicle, first, N sampling areas are determined according to the contours of the entire vehicle material, where N is a natural number greater than three.

[0083] Furthermore, the sampling areas may be divided into equal parts according to the length of the entire vehicle material profile, that is, the length of each sampling area is the total length of the entire vehicle material profile divided by N.

[0084] S2. Obtain the sampling point of the i-th sampling area from the N sampling areas;

[0085] In this embodiment, the i-th sampling area is specifically any one of the N sampling areas. During the sampling process, a coordinate system is established with the path of the material cart as the horizontal coordinate, the path of the sampling head as the vertical coordinate, and the initial position of the sampling head as the origin. The sampling points of the i-th sampling area are randomly generated. When selecting the sampling points, the peaks and troughs of the sample that may affect the representativeness of the sample are avoided. In this embodiment, the initial position of the sampling head is specifically the center position of the bracket.

[0086] S3, collecting materials at the sampling point in the i-th sampling area;

[0087] The material cart is driven to move in the first direction by the first moving component, and the sampling head is driven to move in the second direction by the second moving component until the sampling head moves to the top of the sampling point of the i-th sampling area, and then the sampling head descends to collect the material at the sampling point.

[0088] Specifically, if the coordinates of the sampling point of the i-th sampling area are (X, Y), the distance moved by the material cart driven by the first moving component is X, and the sampling head is moved by the second moving component by a distance Y, so that the sampling head is located directly above the sampling point of the i-th sampling area. In this way, the sampling head and the material cart can move at the same time, the sampling efficiency is higher, and the time taken is shorter.

[0089] S4. Repeat S2 to S3 until materials from N sampling areas are obtained.

[0090] Repeat S2 to S3 until materials in N sampling areas are obtained, completing the sampling work on the material vehicle.

[0091] Furthermore, as one implementation method, the online sampling method in the embodiment of the present invention further includes the following steps before step S1:

[0092] Get the empty vehicle profile and loaded vehicle profile of the material vehicle;

[0093] The material profile of the entire vehicle is calculated based on the profile of the empty vehicle and the profile of the loaded vehicle.

[0094] Specifically, the unloaded vehicle outline can be manually input by a worker or acquired using a 3D laser recognition device. Preferably, this is acquired using a 3D laser recognition device, which can capture the truck's license plate, outline, dimensions such as the length, width, and height of the vehicle compartment, and detailed features such as the vehicle compartment reinforcement. Furthermore, the unloaded vehicle outline is acquired before the material truck moves to the first moving assembly.

[0095] After the loaded material cart moves onto the first moving assembly, it remains stationary while being driven in a first direction by the first moving assembly. At this point, a 3D laser scan of the loaded vehicle is performed to obtain its outline. By comparing the loaded and unloaded vehicle outlines and removing the unsampled unloaded vehicle outline from the loaded vehicle outline, the entire vehicle's material profile can be calculated.

[0096] In the above method, as one implementation method, the online sampling method in the embodiment of the present utility model, step S1, specifically includes the following steps:

[0097] Determine the material volume based on the material profile of the vehicle;

[0098] The material weight is calculated based on the material volume and density, that is, the material weight is equal to the material volume multiplied by the material density;

[0099] Determine the sampling weight and sample quantity based on the material weight;

[0100] Based on the sampling criteria and the weight of the material, determine the sample quantity and sampling weight.

[0101] The material truck is divided into N sampling areas according to the sampling weight, sample quantity and the material profile of the entire truck.

[0102] As one implementation method, the sampling area in the embodiment of the present invention is divided into sampling lengths evenly, that is, if the length of the vehicle material profile is L, the length of each sampling area is L / N.

[0103] As one of the implementation methods, the weight of each sampling can be sampled by equal sampling, that is, if the total sampling weight is G, the weight of a single sample Gi=G / N; other methods can also be used for sampling. Specifically, sampling can also be performed based on the ratio of the material volume of the i-th sampling area to the material volume of the entire vehicle. Specifically, if the material volume of the entire vehicle is V, and the material volume of the i-th sampling area is Vi, then the ratio of the material volume of the i-th sampling area to the material volume of the entire vehicle is i=Vi / V, and the weight of a single sample Gi=G*Vi / V. If there is more material in a single sampling area, the weight of the single sample is more. If there is less material in a single sampling area, the weight of the single sample is less.

[0104] In the above method, as one specific implementation method, step S2 in the embodiment of the present utility model specifically includes the following steps:

[0105] Move the loaded material cart until the i-th sampling area reaches the starting position;

[0106] Specifically, when the material cart moves onto the first moving component, the first moving component drives the material cart to move along the first direction to the starting position. The starting position here refers to the side of the entire vehicle outline of the material cart moving to the position where the Y-axis coordinate system is located.

[0107] Get the regional material contour of the i-th sampling area;

[0108] The acquisition device here is preferably a three-dimensional laser instrument, which obtains the regional material contour of the i-th sampling area through the acquisition device, obtains the material volume of the i-th sampling area based on the regional material contour of the i-th sampling area, and obtains the total amount of a single sampling based on the material volume of the i-th sampling area, the material volume of the entire vehicle V and the total weight of the sampling.

[0109] According to the regional material contour, the sampling point coordinates of the i-th sampling area are determined.

[0110] Based on the regional material contours, the coordinates of the sampling points in the i-th sampling area are randomly generated, excluding material peaks and valleys that could affect the representativeness of the sampling. After the coordinates are determined, the first and second moving assemblies simultaneously move the material cart and the sampling head, allowing the sampling head to reach directly above the sampling point. The lifting assembly then extends the sampling head, and the sampling head begins sampling.

[0111] Furthermore, when moving from the i-th sampling area to the i+1-th sampling area, the first moving assembly drives the material cart to move a preset length, where the preset length is specifically L / N. In one specific embodiment, the first transport cart is provided with a rotating wheel, and an encoder can be provided on the rotating wheel to calculate the displacement of the first transport cart based on the number of rotations of the rotating wheel and the diameter of the rotating wheel. As another embodiment, in embodiments of the present invention, a position sensor can also be provided on the bracket to detect the distance traveled by the material cart.

[0112] In the above method, as one implementation mode, after step S4 in the online sampling method in the embodiment of the present invention, the following steps are further included:

[0113] Online sample preparation is carried out through the sample preparation component.

[0114] The sample preparation component is arranged on one side of the first moving component, that is, the sample preparation component is arranged on the outside of the unloading point, and is used to receive the material sample collected by the sampling head. After the sampling is completed, the sample is directly prepared online through the sample preparation component and then sent to the offline sample preparation link for sample preparation, which is more convenient.

[0115] For a single sampling and single unloading sampling head, unloading is required after a single sampling is completed. As one implementation method, the online sampling method in the embodiment of the present invention further includes the following steps between step S3 and step S4:

[0116] Move the sampling head to the unloading point for unloading;

[0117] Move the sampling head to the initial position and wait for the next sampling.

[0118] The unloading point is set on one side of the second moving component. After the sampling head collects the material sample in the i-th sampling area, the lifting component drives the sampling head to reset, and the second moving component drives the collection head to move along the second direction to the unloading point for unloading.

[0119] After unloading is completed, the sampling head is driven by the second moving component to move to the initial position to prepare for the next sampling work.

[0120] For other sampling heads that can store materials, unloading and online sample preparation are carried out after completing the sampling work on the material vehicle.

[0121] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online sampling device, characterized in that: include: A first moving assembly (2) for driving the material vehicle (1) to move along a first direction; A sampling head (3) disposed above the first moving component (2) and used for collecting materials; A second moving component (4) for driving the sampling head (3) to move along a second direction; A lifting assembly is arranged between the sampling head (3) and the second moving assembly (4).

2. The online sampling device according to claim 1, characterized in that: The second moving component (4) comprises: A bracket (41), wherein a hollow area (42) is provided on the bracket (41); A second transport trolley (43) is provided on the bracket (41), the sampling head (3) is provided on the second transport trolley (43), and the lifting assembly is used to drive the sampling head (3) through the hollow area (42) for sampling; A guide member (44) is provided on the bracket (41) and is used to constrain the second transport trolley (43) from moving along the second direction.

3. The online sampling device according to claim 2, characterized in that: The first moving component (2) comprises: A first conveying trolley (21), wherein the first conveying trolley (21) is provided with a support platform (22) for placing a material trolley; A first driving member for driving the first conveying trolley (21) to move along a first direction.

4. The online sampling device according to claim 3, characterized in that: The first moving component (2) further comprises: Anti-lifting structures (23) are arranged on both sides of the first conveying trolley (21), and the anti-lifting structures (23) are arranged at intervals along the length direction of the first conveying trolley (21).

5. The online sampling device according to claim 4, characterized in that: The first moving component (2) further comprises: provided at one end of the first transport trolley (21), and used to guide the material trolley (1) to enter the first inclined surface (24) of the support platform (22); A second inclined surface (25) is provided at one end of the first transport trolley (21) away from the first inclined surface (24) and is used to guide the material trolley (1) to drive away from the supporting platform (22).

6. The online sampling device according to any one of claims 1 to 5, characterized in that: Also includes: A sample preparation component (5) is provided on one side of the first moving component (2), and the sample preparation component (5) is used to receive the material collected by the sampling head (3) and perform online sample preparation.

7. An online sampling system, characterized in that: include: Determination means, the determination module is used to determine N sampling areas according to the contour of the vehicle material; An acquisition device, wherein the acquisition module is used to acquire a sampling point of the i-th sampling area from the N sampling areas; A collecting device, the collecting device is used to collect materials at a sampling point in the i-th sampling area; Wherein, the collection device is the online sampling device according to any one of claims 1 to 6.

8. The online sampling system according to claim 7, characterized in that: The acquisition device includes: Mounting seat; a three-dimensional laser scanner rotatably connected to the mounting base and configured to acquire image information of the i-th sampling area; A selector is connected to the three-dimensional laser scanner, receives the image information, and selects a sampling point of the i-th sampling area.

9. The online sampling system according to claim 8, characterized in that: There are at least three three-dimensional laser scanners, which are respectively arranged above and on both sides of the first moving component.

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