Control method and device of coal crushing equipment and readable storage medium

Abstract

The invention discloses a control method and device of coal crushing equipment and a readable storage medium. The method comprises the steps that the stacking height and stacking image of coal stacks are obtained, and the coal stacks at least comprise first coal stacks in a stock bin and second coal stacks of an inlet discharging hopper of a crusher; based on the stockpile height and the stockpile image, the actual size of coal briquettes of the coal stockpile is determined, and the actual size of the coal briquettes is used for indicating the actual size of the coal briquettes in the coal stockpile; based on the stacking height and the actual size of the coal briquette, the speed gear of a feeder and the working state of a crusher are determined; generating a corresponding control instruction based on the speed gear and the working state; and the control instruction is sent to the feeder and the crusher, so that the feeder and the crusher crush the coal according to the control instruction. The technical problem that the overall coal briquette crushing efficiency of a crusher is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal crushing production, and in particular to a control method, device, and readable storage medium for coal crushing equipment. Background Art

[0002] At present, thermal power plants usually use coal as fuel to generate electricity. Through the combustion of coal, circulating water is heated to generate high-pressure and high-temperature steam to drive the impeller of the generator to rotate and generate electricity. In order to make the combustion of coal more efficient and sufficient, the coal needs to be processed into powder before entering the combustion chamber for combustion. The coal purchased from the coal yard is usually in block form, so the coal blocks need to be crushed into powder. Therefore, thermal power plants usually need to be equipped with coal block crushers or crushers to crush the coal blocks into powder. When the crusher crushes the coal blocks, the purchased coal will be poured into the silo and transported to the crusher through the feeder set at the bottom of the silo, and the crusher will crush the coal blocks. The speed of the coal blocks conveyed by the feeder needs to be equivalent to the speed of the crusher crushing the coal blocks. If the speed of the coal blocks conveyed by the feeder is too high, the coal blocks will accumulate and overflow at the entrance of the crusher, and manual processing is required. In addition, the size of the coal blocks will also affect the speed of the crusher crushing. Large-sized coal blocks reduce the speed of the crusher crushing.

[0003] In the related art, the matching of the speed of the feeder conveying coal blocks and the crushing speed of the crusher is manually taken care of and controlled. If the staff sees that the coal blocks are piled up too high in the crusher entrance hopper, the staff needs to manually lower the feeder conveying speed. In the actual working process, in order to reduce the trouble of frequently adjusting the conveying speed, the staff who take care of the crusher usually adjust the conveying speed of the feeder to a lower level, so that the crusher cannot work at full load. On the other hand, large thermal power plants require more coal, and usually require several crushers to work at the same time to meet the power generation needs. Therefore, there is a technical problem of low overall efficiency of the crusher in crushing coal blocks.

[0004] With respect to the above-mentioned technical problem of low overall efficiency of crushing coal blocks by crushers, no effective solution has been proposed so far. Summary of the invention

[0005] The embodiments of the present invention provide a control method, device, and readable storage medium for coal crushing equipment to at least solve the technical problem of low overall efficiency of the crusher in crushing coal blocks.

[0006] According to one aspect of an embodiment of the present invention, a control method for coal crushing equipment is provided. The method may include: obtaining a stockpile height and a stockpile image of a coal stockpile, wherein the coal stockpile includes at least a first coal stockpile in a silo and a second coal stockpile at an inlet and outlet hopper of a crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; based on the stockpile height and the stockpile image, determining the actual size of coal blocks in the coal stockpile, wherein the actual size of the coal blocks is used to indicate the actual size of the coal blocks in the coal stockpile, and the actual size of the coal blocks includes at least an actual size of the coal blocks in the first coal stockpile and an actual size of the coal blocks in the second coal stockpile; based on the stockpile height and the actual size of the coal blocks, determining a speed gear of a feeder and a working state of a crusher; based on the speed gear and the working state, generating corresponding control instructions; and sending the control instructions to the feeder and the crusher, respectively, so that the feeder and the crusher crush the coal according to the control instructions.

[0007] Optionally, determining the actual size of coal blocks in the coal pile based on the stockpile height and the stockpile image also includes: determining the relative size of coal blocks in the coal pile based on the stockpile image, wherein the relative size of the coal blocks includes at least a size for indicating the largest coal block in the first coal pile and a size for indicating the largest coal block in the second coal pile; obtaining a collection distance of the coal pile, wherein the collection distance is used to indicate the distance between a collection device and the coal pile, the collection device is used to obtain the coal pile image, and the collection distance includes at least a collection distance between the first coal pile and the collection device and a collection distance between the second coal pile and the collection device; determining the actual size of the coal blocks based on the relative size of the coal blocks and the collection distance.

[0008] Optionally, based on the stockpile height and the actual size of the coal blocks, determining the speed gear of the feeder and the working state of the crusher includes: in response to the height of the first coal stockpile being greater than the first height threshold, and the height of the second coal stockpile being greater than the second height threshold, determining the speed gear of the feeder to be the first speed gear, wherein the working state of the crusher is the running state; in response to the height of the first coal stockpile being greater than the first height threshold, and the height of the second coal stockpile being greater than the third height threshold and less than the second height threshold, determining the speed gear of the feeder to be the second speed gear, wherein the working state of the crusher is the running state; in response to the height of the first coal stockpile being greater than the first height threshold, and the height of the second coal stockpile being less than or equal to the third height threshold, the actual size of the coal blocks in the first coal stockpile In response to the height of the first coal pile being greater than the first height threshold, the height of the second coal pile being less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile or the actual size of the coal blocks in the second coal pile being greater than the actual size threshold, the speed gear of the feeder is determined to be the fourth speed gear, and the working state of the crusher is the running state, wherein the first speed gear, the second speed gear, the third speed gear and the fourth speed gear are used to indicate different speeds of the feeder, and the first height threshold, the second height threshold and the third height threshold are used to indicate different preset heights.

[0009] Optionally, the control method of the coal crushing equipment also includes: in response to the height of the first coal pile being less than or equal to a first height threshold, and the height of the second coal pile being greater than a fourth height threshold, determining that the feeder and the crusher are shut down after a time threshold; in response to the height of the first coal pile being less than or equal to the first height threshold, and the height of the second coal pile being less than or equal to the fourth height threshold, determining that the feeder is shut down, and determining that the crusher is shut down.

[0010] Optionally, the control method of the coal crushing equipment also includes: obtaining the current speed gear of the feeder; comparing the current speed gear with the speed gear in the control instruction; in response to the current speed gear not matching the speed gear in the control instruction, sending the control instruction to the feeder.

[0011] Optionally, the control method of the coal crushing equipment further includes: acquiring the current working state of the crusher; and sending the control instruction to the crusher in response to the current working state not matching the working state in the control instruction.

[0012] According to another aspect of an embodiment of the present invention, a control device for coal crushing equipment is also provided. The device may include: an acquisition unit, used to acquire a stockpile height and a stockpile image of a coal stockpile, wherein the coal stockpile includes at least a first coal stockpile in a silo and a second coal stockpile at an inlet and outlet hopper of a crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; a first determination unit, used to determine the actual size of coal blocks in the coal stockpile based on the stockpile height and the stockpile image, wherein the actual size of the coal blocks is used to indicate the actual size of the coal blocks in the coal stockpile, and the actual size of the coal blocks includes at least an actual size of the coal blocks in the first coal stockpile and an actual size of the coal blocks in the second coal stockpile; a second determination unit, used to determine the speed gear of a feeder and the working state of a crusher based on the stockpile height and the actual size of the coal blocks; a generation unit, used to generate corresponding control instructions based on the speed gear and the working state; and a sending unit, used to send the control instructions to the feeder and the crusher, respectively, so that the feeder and the crusher crush the coal according to the control instructions.

[0013] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the control method of the coal crushing equipment in the embodiment of the present invention.

[0014] According to another aspect of the embodiment of the present invention, a processor is further provided, wherein the processor is used to run a program, wherein the control method of the coal crushing equipment in the embodiment of the present invention is executed when the program is run.

[0015] According to another aspect of the embodiment of the present invention, a computer program product is also provided, which includes computer instructions, and when the computer instructions are executed by a processor, the control method of the coal crushing equipment in the embodiment of the present invention is implemented.

[0016] In an embodiment of the present invention, a stockpile height and a stockpile image of a coal stockpile are obtained, wherein the coal stockpile includes at least a first coal stockpile in a silo and a second coal stockpile at an inlet and outlet hopper of a crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; based on the stockpile height and the stockpile image, an actual size of coal blocks in the coal stockpile is determined, wherein the actual size of the coal blocks is used to indicate an actual size of the coal blocks in the coal stockpile, and the actual size of the coal blocks includes at least an actual size of the coal blocks in the first coal stockpile and an actual size of the coal blocks in the second coal stockpile; based on the stockpile height and the actual size of the coal blocks, a speed gear of a feeder and a working state of a crusher are determined; based on the speed gear and the working state, corresponding control instructions are generated; and the control instructions are sent to the feeder and the crusher, respectively, so that the feeder and the crusher crush the coal according to the control instructions. That is to say, the present invention obtains the height and image of the coal pile in the silo and at the crusher to determine the speed gear of the feeder and the working state of the crusher, thereby realizing automatic control of the feeder feeding the coal block crusher, so that the speed of the coal blocks transported by the feeder needs to match the speed of the crusher crushing the coal blocks, thereby solving the technical problem of the overall low efficiency of the crusher in crushing coal blocks and achieving the technical effect of improving the overall efficiency of the crusher in crushing coal blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 is a flow chart of a control method of a coal crushing device according to an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of a coal crushing and feeding control system according to an embodiment of the present invention;

[0020] Figure 3 is a flow chart of a coal crushing and feeding control method according to an embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of a controller structure according to an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of a control device for coal crushing equipment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, functional component or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, functional components or devices.

[0025] According to an embodiment of the present invention, an embodiment of a control method for coal crushing equipment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0026] Figure 1 is a flow chart of a control method for coal crushing equipment according to an embodiment of the present invention. Figure 1 As shown, the method may include the following steps:

[0027] Step S101, obtaining the stockpile height and stockpile image of the coal stockpile.

[0028] In the technical solution provided in the above step S101 of the present invention, the coal stockpile at least includes a first coal stockpile in the silo and a second coal stockpile in the inlet and outlet hopper of the crusher, the stockpile height at least includes a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image at least includes an image of the first coal stockpile and an image of the second coal stockpile. The stockpile image may be video data.

[0029] In this embodiment, the stockpile height and stockpile image of the coal stockpile are obtained. For example, the stockpile height of the coal stockpile is collected in real time by radar, and the stockpile image is collected by a camera. This is only an illustrative example, and the specific method for obtaining the stockpile height and stockpile image of the coal stockpile is not limited.

[0030] For example, the first radar is used to collect the first height of the pile in the silo in real time, the second radar is used to collect the second height of the pile in the crusher inlet hopper in real time, the first camera is used to collect the first video data of the coal block image in the silo, and the second camera is used to collect the second video data of the coal block image in the crusher inlet hopper.

[0031] Step S102, determining the actual size of coal blocks in the coal pile based on the pile height and the pile image.

[0032] In the technical solution provided in the above step S102 of the present invention, the actual size of the coal block is used to indicate the actual size of the coal block in the coal pile, and the actual size of the coal block at least includes the actual size of the coal block in the first coal pile and the actual size of the coal block in the second coal pile.

[0033] In this embodiment, after the stockpile height and the stockpile image of the coal stockpile are acquired in step S101, the actual size of the coal blocks of the coal stockpile is determined according to the stockpile height and the stockpile image.

[0034] Optionally, by calculating the relative size of the largest piece of coal in the coal pile and the collection distance between the collection device and the coal pile, the actual size of the coal pieces in the coal pile is determined according to the relative size and the collection distance. The collection device may be a camera, and the collection distance may be a camera distance.

[0035] For example, the relative size of the largest piece of coal in the silo is calculated as the first relative size of coal by using the convolutional neural network through the image in the first video data; the relative size of the largest piece of coal in the crusher inlet hopper is calculated as the second relative size of coal by using the image in the second video data through the convolutional neural network. The first camera distance between the first camera and the coal pile in the silo is calculated according to the first pile height, and the second camera distance between the second camera and the coal pile in the crusher inlet hopper is calculated according to the second pile height.

[0036] For another example, the actual coal block size is calculated according to the first camera distance and the first relative size of the coal block as the first actual coal block size, and the actual coal block size is calculated according to the second camera distance and the second relative size of the coal block as the second actual coal block size.

[0037] Step S103, based on the stockpile height and the actual size of the coal blocks, determine the speed gear of the feeder and the working state of the crusher.

[0038] In the technical solution provided in the above step S103 of the present invention, the speed gear can be a first gear, a second gear, a third gear and a fourth gear, wherein the first gear, the second gear, the third gear and the fourth gear are used to indicate different speeds of the feeder, and the first gear can be 0 gear, and the feeder 0 gear means that the feeder motor does not stop, but the conveyor belt does not transport the pile to the crusher (equivalent to pause or sleep, due to the high power consumption of the motor start and stop).

[0039] In this embodiment, after the actual size of the coal blocks in the coal pile is determined in step S102, the speed gear of the feeder and the working state of the crusher are determined according to the pile height and the actual size of the coal blocks.

[0040] Optionally, the stockpile height is compared with a height threshold, and the actual size of the coal block is compared with a size threshold to determine the speed gear of the feeder and the working state of the crusher.

[0041] For example, when the first stockpile height exceeds the first height threshold H1, and the second stockpile height exceeds the second height threshold H21, it is determined that the speed gear required for the feeder to operate is the first gear, and the working state of the crusher is the operating state.

[0042] Step S104, generating corresponding control instructions based on the speed gear and the working state.

[0043] In the technical solution provided in the above step S104 of the present invention, the control instructions may include feeder control instructions and crusher control instructions.

[0044] In this embodiment, after the speed gear of the feeder and the working state of the crusher are determined in step S103, corresponding control instructions are generated according to the speed gear and the working state.

[0045] For example, assuming that the feeder and the crusher are ready to stop, a feeder stop command and a crusher stop command are generated.

[0046] Step S105, sending control instructions to the feeder and the crusher respectively, so that the feeder and the crusher crush the coal according to the control instructions.

[0047] In the technical solution provided in the above step S105 of the present invention, after the corresponding control instruction is generated in step S104, the control instruction is sent to the feeder and the crusher respectively, so that the feeder and the crusher crush the coal according to the control instruction.

[0048] In this embodiment, by acquiring the current speed gear of the feeder and the current working state of the crusher, when the current speed gear of the feeder is inconsistent with the speed gear in the control instruction, the control instruction is sent to the feeder.

[0049] Optionally, when the current working state of the crusher is inconsistent with the working state in the control instruction, the control instruction is sent to the crusher.

[0050] It should be noted that the above embodiment can be implemented by a coal crushing and feeding control system.

[0051] In the above steps S101 to S105 of the present invention, the stockpile height and stockpile image of the coal stockpile are obtained, wherein the coal stockpile includes at least a first coal stockpile in the silo and a second coal stockpile at the inlet and outlet hopper of the crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; based on the stockpile height and the stockpile image, the actual size of the coal blocks in the coal stockpile is determined, wherein the actual size of the coal blocks is used to indicate the actual size of the coal blocks in the coal stockpile, and the actual size of the coal blocks includes at least an actual size of the coal blocks in the first coal stockpile and an actual size of the coal blocks in the second coal stockpile; based on the stockpile height and the actual size of the coal blocks, the speed gear of the feeder and the working state of the crusher are determined; based on the speed gear and the working state, corresponding control instructions are generated; and the control instructions are sent to the feeder and the crusher, respectively, so that the feeder and the crusher crush the coal according to the control instructions. That is to say, the present invention obtains the height and image of the coal pile in the silo and at the crusher to determine the speed gear of the feeder and the working state of the crusher, thereby realizing automatic control of the feeder feeding the coal block crusher, so that the speed of the coal blocks transported by the feeder needs to match the speed of the crusher crushing the coal blocks, thereby solving the technical problem of the overall low efficiency of the crusher in crushing coal blocks and achieving the technical effect of improving the overall efficiency of the crusher in crushing coal blocks.

[0052] The above method of this embodiment is further introduced below.

[0053] As an optional implementation method, determining the actual size of coal blocks in the coal pile based on the pile height and the pile image also includes: determining the relative size of coal blocks in the coal pile based on the pile image, wherein the relative size of the coal blocks at least includes a size for indicating the largest coal block in the first coal pile and a size for indicating the largest coal block in the second coal pile; obtaining a collection distance of the coal pile, wherein the collection distance is used to indicate the distance between a collection device and the coal pile, the collection device is used to obtain the coal pile image, and the collection distance at least includes a collection distance between the first coal pile and the collection device and a collection distance between the second coal pile and the collection device; determining the actual size of the coal blocks based on the relative size of the coal blocks and the collection distance.

[0054] In this embodiment, the relative size of the coal blocks in the coal pile is determined based on the stockpile image. For example, the relative size of the largest piece of coal in the stockpile image is calculated using a convolutional neural network. This is only an example and does not limit the specific method for determining the relative size of the coal blocks in the coal pile.

[0055] Optionally, after determining the relative size of coal blocks in the coal pile, the collection distance of the coal pile, that is, the camera distance, is obtained, so as to determine the actual size of the coal blocks in the coal pile according to the relative size of the coal blocks and the collection distance.

[0056] For example, the actual coal block size is calculated based on the first camera distance and the relative size of the first coal block as the actual size of the first coal block, and the actual coal block size is calculated based on the second camera distance and the relative size of the second coal block as the actual size of the second coal block. If the actual size of the first coal block or the actual size of the second coal block is greater than the first size threshold, an alarm signal is issued.

[0057] As an optional implementation method, based on the stockpile height and the actual size of the coal blocks, the speed gear of the feeder and the working state of the crusher are determined, including: in response to the height of the first coal stockpile being greater than the first height threshold, and the height of the second coal stockpile being greater than the second height threshold, determining that the speed gear of the feeder is the first speed gear, wherein the working state of the crusher is the running state; in response to the height of the first coal stockpile being greater than the first height threshold, and the height of the second coal stockpile being greater than the third height threshold and less than the second height threshold, determining that the speed gear of the feeder is the second speed gear, wherein the working state of the crusher is the running state; in response to the height of the first coal stockpile being greater than the first height threshold, and the height of the second coal stockpile being less than or equal to the third height threshold, the coal blocks in the first coal stockpile are In response to the fact that the actual size of the first coal pile is greater than the first height threshold, the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile or the actual size of the coal blocks in the second coal pile is greater than the actual size threshold, the speed gear of the feeder is determined to be the third speed gear, and the working state of the crusher is the running state. In response to the fact that the height of the first coal pile is greater than the first height threshold, the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile or the actual size of the coal blocks in the second coal pile is greater than the actual size threshold, the speed gear of the feeder is determined to be the fourth speed gear, and the working state of the crusher is the running state, wherein the first speed gear, the second speed gear, the third speed gear and the fourth speed gear are used to indicate different speeds of the feeder, and the first height threshold, the second height threshold and the third height threshold are used to indicate different preset heights.

[0058] In this embodiment, when the height of the first coal pile is greater than the first height threshold, and the height of the second coal pile is greater than the second height threshold, the speed gear of the feeder is determined to be the first speed gear, and the working state of the crusher is the running state. Among them, the first speed gear can also be 0 gear, indicating that the feeder motor does not stop, but the conveyor belt does not feed the crusher (equivalent to pause or sleep, because the motor starts and stops high power consumption), the first height threshold can be represented by H1, and the second height threshold can be represented by H21.

[0059] For example, assuming that the first height threshold is H1 and the second height threshold is H21, if the first stockpile height exceeds H1 and the second stockpile height exceeds H21, the first speed gear required for the feeder to operate is gear 0, and the required working state of the crusher is the operating state.

[0060] Optionally, when the height of the first coal pile is greater than the first height threshold, and the height of the second coal pile is greater than the third height threshold and less than the second height threshold, it is determined that the speed gear of the feeder is the second speed gear, and the working state of the crusher is the running state. The second speed gear can be gear 1, and the third height threshold can be represented by H22.

[0061] For example, if the first stockpile height exceeds H1 and the second stockpile height exceeds H22 but does not exceed H21, the second speed gear required for the feeder to operate is gear 1, and the required working state of the crusher is the operating state.

[0062] Optionally, when the height of the first coal pile is greater than the first height threshold, the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile and the actual size of the coal blocks in the second coal pile are both less than the actual size threshold, it means that there are no large pieces of coal at the silo and the crusher entrance hopper. Based on this, it can be determined that the speed gear of the feeder is the third speed gear, and the working state of the crusher is the running state. Among them, the third speed gear can be gear 3.

[0063] For example, if the first pile height exceeds H1, the second pile height does not exceed H22, and there are no large pieces of coal at the silo and the crusher entrance hopper, the third speed gear required for the feeder operation is gear 3, and the required working state of the crusher is the running state.

[0064] Optionally, when the height of the first coal pile is greater than the first height threshold, the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile or the actual size of the coal blocks in the second coal pile is greater than the actual size threshold, the speed gear of the feeder is determined to be the fourth speed gear, and the working state of the crusher is the running state. The fourth speed gear can be the 2nd gear.

[0065] For example, if the first stockpile height exceeds H1 and the second stockpile height does not exceed H22, and there are large pieces of coal in the silo or crusher inlet hopper 21, the fourth speed gear required for the feeder operation is gear 2, and the required working state of the crusher is the running state.

[0066] As an optional embodiment, the control method of coal crushing equipment also includes: in response to the height of the first coal pile being less than or equal to a first height threshold, and the height of the second coal pile being greater than a fourth height threshold, determining that the feeder and the crusher are shut down after a time threshold; in response to the height of the first coal pile being less than or equal to the first height threshold, and the height of the second coal pile being less than or equal to the fourth height threshold, determining that the feeder is shut down, and determining that the crusher is shut down.

[0067] In this embodiment, when the height of the first coal pile is less than or equal to the first height threshold, and the height of the second coal pile is greater than the fourth height threshold, it is determined that the feeder and the crusher are shut down after the time threshold. The fourth height threshold can be represented by H23.

[0068] For example, if the first pile height does not exceed H1, and the second pile height exceeds H23, the feeder and the crusher will be stopped after a preparation time of T.

[0069] Optionally, when the height of the first coal pile is less than or equal to a first height threshold, and the height of the second coal pile is less than or equal to a fourth height threshold, it is determined that the feeder and the crusher are shut down.

[0070] For example, if the first pile height does not exceed H1, and the second pile height does not exceed H23, the feeder and the crusher are ready to stop.

[0071] As an optional implementation method, the control method of coal crushing equipment also includes: obtaining the current speed gear of the feeder; comparing the current speed gear with the speed gear in the control instruction; in response to the current speed gear not matching the speed gear in the control instruction, sending the control instruction to the feeder.

[0072] In this embodiment, the current speed gear of the feeder is obtained; the current speed gear is compared with the speed gear in the control instruction; when the current speed gear does not match the speed gear in the control instruction, it means that the feeder needs to switch gears, based on which the control instruction is sent to the feeder.

[0073] For example, if the current speed gear of the feeder is inconsistent with the determined speed gear required for the feeder to operate, an instruction to adjust the operating speed gear is sent to the feeder.

[0074] As an optional implementation method, the control method of coal crushing equipment also includes: obtaining the current working state of the crusher; comparing the current working state with the working state in the control instruction; in response to the current working state not matching the working state in the control instruction, sending the control instruction to the crusher.

[0075] In this embodiment, the current working state of the crusher is obtained; the current working state is compared with the working state in the control instruction; when the current working state does not match the working state in the control instruction, it indicates that the crusher needs to switch the working state, based on which the control instruction is sent to the crusher.

[0076] For example, if the current working state of the crusher is inconsistent with the required working state of the crusher 2, a corresponding start-stop instruction is sent to the crusher.

[0077] It should be noted that the above embodiment can be implemented by a coal crushing and feeding control system.

[0078] In this embodiment, the stockpile height and stockpile image of the coal stockpile are obtained, wherein the coal stockpile includes at least a first coal stockpile in the silo and a second coal stockpile in the inlet and outlet hopper of the crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; based on the stockpile height and the stockpile image, the actual size of coal blocks in the coal stockpile is determined, wherein the actual size of the coal blocks is used to indicate the actual size of the coal blocks in the coal stockpile, and the actual size of the coal blocks includes at least an actual size of the coal blocks in the first coal stockpile and an actual size of the coal blocks in the second coal stockpile; based on the stockpile height and the actual size of the coal blocks, the speed gear of the feeder and the working state of the crusher are determined; based on the speed gear and the working state, corresponding control instructions are generated; and the control instructions are sent to the feeder and the crusher, respectively, so that the feeder and the crusher crush the coal according to the control instructions. That is to say, the present invention obtains the height and image of the coal pile in the silo and at the crusher to determine the speed gear of the feeder and the working state of the crusher, thereby realizing automatic control of the feeder feeding the coal block crusher, so that the speed of the coal blocks transported by the feeder needs to match the speed of the crusher crushing the coal blocks, thereby solving the technical problem of the overall low efficiency of the crusher in crushing coal blocks and achieving the technical effect of improving the overall efficiency of the crusher in crushing coal blocks.

[0079] The technical solution of the embodiment of the present invention is illustrated below in conjunction with preferred implementation modes.

[0080] At present, thermal power plants usually use coal as fuel to generate electricity. Through the combustion of coal, circulating water is heated to generate high-pressure and high-temperature steam to drive the impeller of the generator to rotate and generate electricity. In order to make the combustion of coal more efficient and sufficient, the coal needs to be processed into powder before entering the combustion chamber for combustion. The coal purchased from the coal yard is usually in block form, so the coal blocks need to be crushed into powder. Therefore, thermal power plants usually need to be equipped with coal block crushers or crushers to crush the coal blocks into powder. When the crusher crushes the coal blocks, the purchased coal will be poured into the silo and transported to the crusher through the feeder set at the bottom of the silo, and the crusher will crush the coal blocks. The speed of the coal blocks conveyed by the feeder needs to be equivalent to the speed of the crusher crushing the coal blocks. If the speed of the coal blocks conveyed by the feeder is too high, the coal blocks will accumulate and overflow at the entrance of the crusher, and manual processing is required. In addition, the size of the coal blocks will also affect the speed of the crusher crushing. Large-sized coal blocks reduce the speed of the crusher crushing.

[0081] In the related art, the matching of the speed of the feeder conveying coal blocks and the crushing speed of the crusher is manually taken care of and controlled. If the staff sees that the coal blocks are piled up too high in the crusher entrance hopper, the staff needs to manually lower the feeder conveying speed. In the actual working process, in order to reduce the trouble of frequently adjusting the conveying speed, the staff who take care of the crusher usually adjust the conveying speed of the feeder to a lower level, so that the crusher cannot work at full load. On the other hand, large thermal power plants require more coal, and usually several crushers are required to work at the same time to meet the power generation needs. Therefore, there is a technical problem of low overall efficiency of crushers crushing coal blocks. With respect to the above-mentioned technical problem of low overall efficiency of crushers crushing coal blocks, no effective solution has been proposed so far.

[0082] However, an embodiment of the present invention proposes a coal crushing and feeding control method, which obtains the height of the pile and the video image, analyzes the actual size of the coal blocks in the pile, and thus determines the operating data of the feeder and the crusher, and realizes automatic control of the feeder feeding the coal block crusher, so that the speed of the coal blocks transported by the feeder needs to match the speed of the crusher crushing the coal blocks, which solves the technical problem of low overall efficiency of the crusher in crushing coal blocks and achieves the technical effect of improving the overall efficiency of the crusher in crushing coal blocks.

[0083] The embodiments of the present invention are further described below.

[0084] Figure 2It is a schematic diagram of a coal crushing and feeding control system according to an embodiment of the present invention. The coal crushing and feeding control system 200 includes: a silo 201, a discharge port 2011, a crusher 202, an inlet hopper 2021, a feeder 203, a first radar 2041, a second radar 2042, a first camera 2051, a second camera 2052 and a controller 206.

[0085] In this embodiment, the radar is divided into a first radar 2041 arranged above the silo 201 and a second radar 2042 arranged above the inlet hopper 2021 of the crusher 202, and the camera is divided into a first camera 2051 arranged above the silo 201 and a second camera 2052 arranged above the inlet hopper 2021 of the crusher 202. A feeder 203 is connected between the bottom of the silo 201 and the inlet hopper 2021 of the crusher 202. The feeder 203 enters the bottom of the silo 201 through the discharge port 2011 at the bottom of the silo 201.

[0086] Optionally, the crusher 202, the feeder 203, the radar and the camera are connected to the controller 206. The controller 206 is a general computing device implemented by a processor and a memory, and implements the coal crushing and feeding control method of the present invention by executing computer program instructions.

[0087] Figure 3 : is a flow chart of a coal crushing and feeding control method according to an embodiment of the present invention, the coal crushing and feeding control method comprises the following steps:

[0088] Step S301, collecting the height and video data of the pile in real time.

[0089] In this embodiment, the first radar is used to collect the first pile height of the material in the silo in real time, the second radar is used to collect the second pile height of the material in the crusher inlet hopper in real time, the first camera is used to collect the first video data of the image of the coal blocks in the silo, and the second camera is used to collect the second video data of the image of the coal blocks in the crusher inlet hopper.

[0090] Step S302, determining the relative size of the pile.

[0091] In this embodiment, the relative size of the largest piece of coal in the silo is calculated as the first relative size of the coal block through the image in the first video data by a convolutional neural network; the relative size of the largest piece of coal in the crusher inlet hopper is calculated as the second relative size of the coal block through the image in the second video data by a convolutional neural network.

[0092] Step S303, determining the relative distance between the pile and the camera.

[0093] In this embodiment, a first imaging distance between the first camera and the coal pile in the silo is calculated according to the first material pile height, and a second imaging distance between the second camera and the coal pile in the crusher inlet hopper is calculated according to the second material pile height.

[0094] Step S304, determining the actual size of the pile.

[0095] In this embodiment, the actual coal block size is calculated based on the first camera distance and the relative size of the first coal block as the actual size of the first coal block, and the actual coal block size is calculated based on the second camera distance and the relative size of the second coal block as the actual size of the second coal block. If the actual size of the first coal block or the actual size of the second coal block is greater than the first size threshold, an alarm signal is issued.

[0096] Step S305, determining the speed gear required by the feeder and the working state required by the crusher according to the stockpile height and actual size.

[0097] In this embodiment, the speed gear required for the feeder to operate and the working state required for the crusher are determined according to the first stockpile height, the second stockpile height, the first actual size of the coal block and the second actual size of the coal block.

[0098] Optionally, if the first stockpile height exceeds H1 and the second stockpile height exceeds H21, the speed gear required for the feeder to operate is gear 0, and the required working state of the crusher is operation.

[0099] Optionally, if the first stockpile height exceeds H1 and the second stockpile height exceeds H22 but does not exceed H21, the speed gear required for the feeder to operate is gear 1, and the required working state of the crusher is operation.

[0100] Optionally, if the first stockpile height exceeds H1 and the second stockpile height does not exceed H22, and there are no large pieces of coal at the silo and the crusher inlet hopper, the speed gear required for the feeder operation is gear 3, and the required working state of the crusher is running.

[0101] Optionally, if the first stockpile height exceeds H1 and the second stockpile height does not exceed H22, and there are large pieces of coal at the silo or crusher inlet hopper, the speed gear required for the feeder operation is gear 2, and the required working state of the crusher is running.

[0102] Optionally, if the first stockpile height does not exceed H1, and the second stockpile height exceeds H23, the feeder and the crusher are stopped after a preparation time of T.

[0103] Optionally, if the first pile height does not exceed H1, and the second pile height does not exceed H23, the feeder and crusher are ready to shut down; wherein H1, H21, H22, and H23 are preset height thresholds; and H21>H22; the T time is preferably 2 minutes (adjusted according to the specific situation of the feeder).

[0104] Optionally, the feeder gear 0 means that the feeder motor does not stop, but the conveyor belt does not deliver feed to the crusher (equivalent to pause or sleep, due to the high power consumption of the motor start and stop).

[0105] Step S306, sending corresponding control instructions to the feeder and crusher.

[0106] In this embodiment, if the feeder and the crusher are ready to stop, a stop instruction is sent to the feeder and the crusher.

[0107] Optionally, if the feeder and the crusher are to be stopped after T time, a stop command is sent to the feeder and the crusher after waiting for T time;

[0108] Optionally, if the current speed gear of the feeder is inconsistent with the speed gear required for the feeder to operate, an instruction to adjust the operating speed gear is sent to the feeder; if the current working state of the crusher is inconsistent with the required working state of the crusher, a corresponding start and stop instruction is sent to the crusher.

[0109] Figure 4 Schematic diagram of a controller structure according to an embodiment of the present invention. Figure 4 As shown, the controller 400 may include: a master control server 2061, a crushing front-end machine 2062, a feeding front-end machine 2063, a radar front-end machine 2064, a video server 2065, a graphics card server 2066, a display 2067 and a mobile terminal 2068.

[0110] In this embodiment, the master control server 2061, the crushing front-end machine 2062, the feeding front-end machine 2063, the radar front-end machine 2064, the video server 2065 and the graphics card server 2066 are all general-purpose computer devices implemented by a processor and a memory, and their corresponding functions are realized by executing computer program instructions stored in the memory.

[0111] Optionally, the master control server 2061 is connected to the crushing front-end machine 2062, the feeding front-end machine 2063, the radar front-end machine 2064, the video server 2065 and the graphics card server 2066 through the network. The crushing front-end machine 2062 is connected to each crusher 202 through a PLC controller. The feeding front-end machine 2063 is connected to each feeder 203 through a PLC controller. The radar front-end machine 2064 is connected to each radar through a PLC controller. The video server 2065 is connected to the graphics card server 2066.

[0112] Optionally, the crushing front-end machine 2062 includes the following modules: a module M21, which is used to monitor the working status and operating status data of each crusher 202, and save the working status and operating status data in real time.

[0113] Optionally, the module M22 is used to receive the start / stop instructions (start instructions and stop instructions) sent by the master control server 2061 , and forward the start / stop instructions to the corresponding crusher 202 .

[0114] Optionally, the module M23 is used to receive a historical data query instruction sent by the master control server 2061, and upon receiving the historical data query instruction sent by the master control server 2061, return the corresponding historical working status and operating status data of the crusher 202 to the master control server 2061.

[0115] Optionally, the feeder front-end machine 2063 includes the following modules: a module M31, which is used to monitor the working status and operation status data of each feeder 203, and save the working status and operation status data in real time;

[0116] Optionally, module M32 is used to receive the running speed gear adjustment instruction sent by the master control server 2061, and if the current running speed gear is inconsistent with the running speed gear adjustment instruction, forward the corresponding running speed gear adjustment instruction to the corresponding feeder.

[0117] Optionally, the module M33 is used to receive the start / stop instructions (start instructions and stop instructions) sent by the master control server 2061 , and forward the start / stop instructions to the corresponding feeder 203 .

[0118] Optionally, the module M34 is used to receive a historical data query instruction sent by the master control server 2061, and upon receiving the historical data query instruction sent by the master control server 2061, return the corresponding historical working status and operation status data of the feeder 203 to the master control server 2061.

[0119] Optionally, the radar front-end 2064 includes the following modules: Module M41, used to receive the distance data detected by each radar 204, calculate the stockpile height (including the first stockpile height and the second stockpile height) in combination with the height data of each radar itself, and save the stockpile height.

[0120] Optionally, the module M42 is used to send the stockpile height (corresponding to the radar ID) to the master control server 2061 at a T1 time interval (5 to 15 seconds).

[0121] Optionally, the module M43 is used to receive a historical data query instruction sent by the master control server 2061, and upon receiving the historical data query instruction sent by the master control server 2061, return the historical stockpile height data of the corresponding radar to the master control server 2061.

[0122] Optionally, the video server 2065 includes the following modules: a module M51, used for receiving and storing video data from each camera 205.

[0123] Module M52 is used to send the picture image (corresponding to the camera ID) of the current time in the video to the graphics card server 2066 at a T1 time interval (5 to 15 seconds).

[0124] Optionally, the module M53 is used to receive a historical data query instruction sent by the master control server 2061, and return the video stream data of the corresponding camera to the master control server 2061 after receiving the historical data query instruction sent by the master control server 2061.

[0125] Optionally, the graphics card server 2066, a server that implements convolutional neural network calculations through multiple graphics cards, includes the following modules: module M61, used for convolutional neural network calculations (calculated by the graphics card).

[0126] Optionally, module M62 is used to receive the picture image sent by the video server 2065, and submit it to the convolutional neural network to calculate the relative size of the coal blocks (the relative size of the largest coal block in the picture, including the relative size of the first coal block and the relative size of the second coal block).

[0127] Optionally, module M63 forwards the corresponding picture image and relative size of the coal block (corresponding camera ID) to the master control server 2061.

[0128] Optionally, the master control server 2061 includes the following modules: a module M11, used to receive the stockpile height (including the first stockpile height and the second stockpile height, corresponding to the corresponding feeder 203 and crusher 202) sent by the module M42.

[0129] Optionally, the module M12 is used to receive the relative sizes of the coal blocks sent by the module M63 (including the first relative size of the coal blocks and the second relative size of the coal blocks, corresponding to the corresponding feeder 203 and crusher 202).

[0130] Optionally, module M13 is used to calculate a first imaging distance between the first camera 2051 and the coal pile in the silo 201 according to a first material pile height, and to calculate a second imaging distance between the second camera 2052 and the coal pile in the inlet hopper 2021 of the crusher 202 according to a second material pile height.

[0131] Optionally, module M14 is used to calculate the actual size of the coal block as the actual size of the first coal block based on the first camera distance and the relative size of the first coal block, and calculate the actual size of the coal block as the actual size of the second coal block based on the second camera distance and the relative size of the second coal block. If the actual size of the first coal block or the actual size of the second coal block is greater than the first size threshold, an alarm signal is issued (the alarm signal is displayed through the display unit 2091, or sent through the network to the mobile terminal 2092 held by the supervisory staff).

[0132] Optionally, module M15 is used to determine the speed gear required for the feeder 203 to operate and the required working state of the crusher 202 according to the first stockpile height, the second stockpile height, the first coal block actual size and the second coal block actual size.

[0133] Optionally, the module M16 is used to send corresponding control instructions to the feeder 203 and the crusher 202.

[0134] In this embodiment, by acquiring the height of the pile and video images and analyzing the actual size of the coal blocks in the pile, the operating data of the feeder and the crusher are determined, and automatic control is implemented on the feeder that feeds the coal block crusher so that the speed of the coal blocks transported by the feeder needs to match the speed of the coal blocks crushed by the crusher. This solves the technical problem of low overall efficiency of the crusher in crushing coal blocks and achieves the technical effect of improving the overall efficiency of the crusher in crushing coal blocks.

[0135] According to an embodiment of the present invention, a control device for coal crushing equipment is also provided. It should be noted that the control device for coal crushing equipment can be used to execute the control method for coal crushing equipment in the method embodiment.

[0136] Figure 5 Schematic diagram of a control device for coal crushing equipment according to an embodiment of the present invention. Figure 5 As shown, the control device 500 of the coal crushing equipment may include: an acquisition unit 501 , a first determination unit 502 , a second determination unit 503 , a generation unit 504 and a sending unit 505 .

[0137] The acquisition unit 501 is used to acquire the pile height and pile image of the coal pile, wherein the coal pile includes at least a first coal pile in the silo and a second coal pile at the entrance and outlet hopper of the crusher, the pile height includes at least a height of the first coal pile and a height of the second coal pile, and the pile image includes at least an image of the first coal pile and an image of the second coal pile.

[0138] The first determination unit 502 is used to determine the actual size of coal blocks in the coal pile based on the pile height and the pile image, wherein the actual size of the coal blocks is used to indicate the actual size of the coal blocks in the coal pile, and the actual size of the coal blocks at least includes the actual size of the coal blocks in the first coal pile and the actual size of the coal blocks in the second coal pile.

[0139] The second determining unit 503 is used to determine the speed gear of the feeder and the working state of the crusher based on the stockpile height and the actual size of the coal blocks.

[0140] The generating unit 504 is used to generate corresponding control instructions based on the speed gear and the working state.

[0141] The sending unit 505 is used to send the control instructions to the feeder and the crusher respectively, so that the feeder and the crusher crush the coal according to the control instructions.

[0142] Optionally, the first determination unit 502 may include: a first determination module, used to determine the relative size of coal blocks in the coal pile based on the pile image, wherein the relative size of the coal blocks at least includes a size used to indicate the largest coal block in the first coal pile, and a size used to indicate the largest coal block in the second coal pile; an acquisition module, used to acquire a collection distance of the coal pile, wherein the collection distance is used to indicate the distance between a collection device and the coal pile, the collection device is used to acquire the coal pile image, and the collection distance at least includes a collection distance between the first coal pile and the collection device and a collection distance between the second coal pile and the collection device; a second determination module, used to determine the actual size of the coal blocks based on the relative size of the coal blocks and the collection distance.

[0143] Optionally, the second determination unit 503 may include: a third determination module for determining that the speed gear of the feeder is the first speed gear in response to the height of the first coal pile being greater than the first height threshold, and the height of the second coal pile being greater than the second height threshold, wherein the working state of the crusher is the running state; a fourth determination module for determining that the speed gear of the feeder is the second speed gear in response to the height of the first coal pile being greater than the first height threshold, and the height of the second coal pile being greater than the third height threshold and less than the second height threshold, wherein the working state of the crusher is the running state; a fifth determination module for determining that the actual size of the coal blocks in the first coal pile is less than the first height threshold, and the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile is less than an actual size threshold, and the actual size of the coal blocks in the second coal pile is less than the actual size threshold, determining that the speed gear of the feeder is the third speed gear, and the working state of the crusher is the running state; a sixth determination module, used to respond to the fact that the height of the first coal pile is greater than the first height threshold, the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile or the actual size of the coal blocks in the second coal pile is greater than the actual size threshold, determining that the speed gear of the feeder is the fourth speed gear, and the working state of the crusher is the running state, wherein the first speed gear, the second speed gear, the third speed gear and the fourth speed gear are used to indicate different speeds of the feeder, and the first height threshold, the second height threshold and the third height threshold are used to indicate different preset heights.

[0144] Optionally, the control device 500 of the coal crushing equipment may further include: a third determination unit, used to determine that the feeder and the crusher are shut down after a time threshold in response to the height of the first coal pile being less than or equal to the first height threshold, and the height of the second coal pile being greater than a fourth height threshold; a fourth determination unit, used to determine that the feeder is shut down, and that the crusher is shut down, in response to the height of the first coal pile being less than or equal to the first height threshold, and the height of the second coal pile being less than or equal to the fourth height threshold.

[0145] Optionally, the control device 500 of the coal crushing equipment may also include: a first acquisition unit, used to acquire the current speed gear of the feeder; a first comparison unit, used to compare the current speed gear with the speed gear in the control instruction; and a second sending unit, used to send the control instruction to the feeder in response to the current speed gear not matching the speed gear in the control instruction.

[0146] Optionally, the control device 500 of the coal crushing equipment may further include: a second acquisition unit, used to acquire the current working state of the crusher; a second comparison unit, used to compare the current working state with the working state in the control instruction; and a third sending unit, used to send the control instruction to the crusher in response to the current working state not matching the working state in the control instruction.

[0147] In this embodiment, the stockpile height and stockpile image of the coal stockpile are obtained, wherein the coal stockpile includes at least a first coal stockpile in the silo and a second coal stockpile in the inlet and outlet hopper of the crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; based on the stockpile height and the stockpile image, the actual size of coal blocks in the coal stockpile is determined, wherein the actual size of the coal blocks is used to indicate the actual size of the coal blocks in the coal stockpile, and the actual size of the coal blocks includes at least an actual size of the coal blocks in the first coal stockpile and an actual size of the coal blocks in the second coal stockpile; based on the stockpile height and the actual size of the coal blocks, the speed gear of the feeder and the working state of the crusher are determined; based on the speed gear and the working state, corresponding control instructions are generated; and the control instructions are sent to the feeder and the crusher, respectively, so that the feeder and the crusher crush the coal according to the control instructions. That is to say, the present invention obtains the height and image of the coal pile in the silo and at the crusher to determine the speed gear of the feeder and the working state of the crusher, thereby realizing automatic control of the feeder feeding the coal block crusher, so that the speed of the coal blocks transported by the feeder needs to match the speed of the crusher crushing the coal blocks, thereby solving the technical problem of the overall low efficiency of the crusher in crushing coal blocks and achieving the technical effect of improving the overall efficiency of the crusher in crushing coal blocks.

[0148] According to an embodiment of the present invention, there is further provided a computer-readable storage medium, the storage medium comprising a stored program, wherein the program executes the control method of the coal crushing equipment in the method embodiment.

[0149] According to an embodiment of the present invention, a processor is further provided. The processor is used to run a program, wherein the control method of the coal crushing equipment in the method embodiment is executed when the program is run.

[0150] According to an embodiment of the present invention, a computer program product is further provided. The computer program product includes computer instructions. When the computer instructions are executed by a processor, the control method of the coal crushing equipment in the method embodiment is implemented.

[0151] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0152] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0153] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0154] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0155] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0156] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent functional component, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software functional component, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc., which can store program codes.

[0157] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for controlling coal crushing equipment, characterized in that: include: Acquire a stockpile height and a stockpile image of a coal stockpile, wherein the coal stockpile includes at least a first coal stockpile in a silo and a second coal stockpile in an inlet and outlet hopper of a crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; Determine actual sizes of coal blocks in the coal pile based on the pile height and the pile image, wherein the actual sizes of coal blocks are used to indicate actual sizes of coal blocks in the coal pile, and the actual sizes of coal blocks include at least actual sizes of coal blocks in the first coal pile and actual sizes of coal blocks in the second coal pile; Based on the stockpile height and the actual size of the coal blocks, determine the speed gear of the feeder and the working state of the crusher; Based on the speed gear and the working state, generating a corresponding control instruction; The control instructions are sent to the feeder and the crusher respectively, so that the feeder and the crusher crush the coal according to the control instructions.

2. The method according to claim 1, characterized in that Determining actual sizes of coal blocks of the coal pile based on the pile height and the pile image further includes: Determining relative sizes of coal lumps of the coal pile based on the stockpile image, wherein the relative sizes of coal lumps include at least a size indicating a largest coal lump in the first coal pile and a size indicating a largest coal lump in the second coal pile; Acquiring a collection distance of the coal pile, wherein the collection distance is used to indicate a distance between a collection device and the coal pile, the collection device is used to acquire an image of the coal pile, and the collection distance at least includes a collection distance between the first coal pile and the collection device and a collection distance between the second coal pile and the collection device; Based on the relative size of the coal block and the collection distance, the actual size of the coal block is determined.

3. The method according to claim 1, characterized in that Based on the stockpile height and the actual size of the coal block, determining the speed gear of the feeder and the working state of the crusher includes: In response to the height of the first coal pile being greater than a first height threshold, and the height of the second coal pile being greater than a second height threshold, determining that the speed gear of the feeder is a first speed gear, wherein the working state of the crusher is an operating state; In response to the height of the first coal pile being greater than the first height threshold, the height of the second coal pile being greater than a third height threshold and less than the second height threshold, determining the speed gear of the feeder to be the second speed gear, wherein the working state of the crusher is the operating state; In response to the height of the first coal pile being greater than the first height threshold, the height of the second coal pile being less than or equal to the third height threshold, the actual size of the coal blocks in the first coal pile being less than the actual size threshold, and the actual size of the coal blocks in the second coal pile being less than the actual size threshold, determining that the speed gear of the feeder is the third speed gear, and the working state of the crusher is the running state; In response to the fact that the height of the first coal pile is greater than the first height threshold, the height of the second coal pile is less than or equal to the third height threshold, and the actual size of the coal blocks in the first coal pile or the actual size of the coal blocks in the second coal pile is greater than the actual size threshold, it is determined that the speed gear of the feeder is the fourth speed gear, and the working state of the crusher is the operating state, wherein the first speed gear, the second speed gear, the third speed gear and the fourth speed gear are used to indicate different speeds of the feeder, and the first height threshold, the second height threshold and the third height threshold are used to indicate different preset heights.

4. The method according to claim 3, characterized in that The method further comprises: In response to the height of the first coal pile being less than or equal to the first height threshold, and the height of the second coal pile being greater than a fourth height threshold, determining that the feeder and the crusher are shut down after a time threshold; In response to the height of the first coal pile being less than or equal to the first height threshold, and the height of the second coal pile being less than or equal to a fourth height threshold, it is determined that the feeder is stopped, and it is determined that the crusher is stopped.

5. The method according to claim 1, characterized in that The method further comprises: Obtain the current speed gear of the feeder; Comparing the current speed gear with the speed gear in the control instruction; In response to the current speed gear not matching the speed gear in the control instruction, the control instruction is sent to the feeder.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: Obtaining the current working status of the crusher; In response to the current working state not matching the working state in the control instruction, sending the control instruction to the crusher.

7. A control device for coal crushing equipment, characterized in that: include: an acquisition unit, configured to acquire a stockpile height and a stockpile image of a coal stockpile, wherein the coal stockpile includes at least a first coal stockpile in a silo and a second coal stockpile in an inlet and outlet hopper of a crusher, the stockpile height includes at least a height of the first coal stockpile and a height of the second coal stockpile, and the stockpile image includes at least an image of the first coal stockpile and an image of the second coal stockpile; a first determining unit, configured to determine actual sizes of coal blocks of the coal pile based on the pile height and the pile image, wherein the actual sizes of the coal blocks are used to indicate actual sizes of coal blocks in the coal pile, and the actual sizes of the coal blocks include at least actual sizes of coal blocks in a first coal pile and actual sizes of coal blocks in a second coal pile; A second determination unit is used to determine the speed gear of the feeder and the working state of the crusher based on the stockpile height and the actual size of the coal block; A generating unit, configured to generate a corresponding control instruction based on the speed gear and the working state; The sending unit is used to send the control instruction to the feeder and the crusher respectively, so that the feeder and the crusher crush the coal according to the control instruction.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 6.

9. A processor, characterized in that: The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 6 when running.

10. A computer program product, characterized in that The computer program product comprises computer instructions, which implement the method according to any one of claims 1 to 6 when executed by a processor.

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