A sanding device, method, apparatus, and readable storage medium

Abstract

The application discloses a sanding device, method, equipment and readable storage medium, relates to the field of rail transit, and the sanding device comprises a total air source, a control host, a pressure regulating module and a sanding valve. The control host is used for generating a pressure regulating signal according to the difference between a target sanding amount and a real-time sanding amount, and sending the pressure regulating signal to the pressure regulating module; the pressure regulating module is used for adjusting the current air pressure of the first gas delivered by the total air source to the target air pressure according to the pressure regulating signal, and delivering the first gas to the sanding valve based on the target air pressure. It can be seen that the control host in the application can generate a pressure regulating signal based on the difference between the target sanding amount and the real-time sanding amount, so that the pressure regulating module can adjust the current air pressure of the first gas delivered by the total air source to the target air pressure, thereby realizing real-time adjustment of the sanding amount by adjusting the air supply pressure in real time during sanding, and further improving the sanding effect.

Description

Technical Field

[0001] This application relates to the field of rail transportation, and more specifically, to a sand spreading device, method, apparatus, and readable storage medium. Background Technology

[0002] Sand spreading on railway vehicles is a crucial step in the operation of railway vehicles. Typically, a sand spreading system delivers sand from a sand box to the spreader via pneumatic ducts, and then evenly spreads it onto the rails in front of the wheels. The main purpose of sand spreading is to increase the friction between the wheels and the rails. Especially in adverse weather conditions such as rain, snow, and ice, sand spreading can shorten braking distance and enhance the train's braking effect. Furthermore, when a train starts, goes uphill, or encounters an emergency requiring emergency braking, the adhesion between the wheels and rails may decrease, leading to wheel slippage. Sand spreading increases the coefficient of friction between the wheels and rails, effectively preventing wheel slippage.

[0003] However, current locomotive sand spreading devices cannot adjust the amount of sand spread in real time according to the actual situation, resulting in poor sand spreading effect. Summary of the Invention

[0004] This application provides a sand spreading device, method, equipment, and readable storage medium, which can adjust the amount of sand spread in real time.

[0005] In view of this, this application provides a sand-spreading device, which includes a main air source, a control unit, a pressure regulating module, and a sand-spreading valve; the control unit is electrically connected to the pressure regulating module; the main air source is connected to the pressure regulating module via an air circuit, and the pressure regulating module is connected to the sand-spreading valve via an air circuit; wherein,

[0006] The control host is used to generate a pressure regulating signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, and send the pressure regulating signal to the pressure regulating module;

[0007] The pressure regulating module is used to adjust the current air pressure of the first gas delivered by the total air source to the target air pressure according to the pressure regulating signal, and deliver the first gas to the sand spreading valve based on the target air pressure.

[0008] Optionally, the pressure regulating module includes a pressure regulating unit, a pre-control air cylinder, and an air supply valve; the pressure regulating unit is electrically connected to the control host; the pressure regulating unit and the air supply valve are respectively connected to the main air source through an air circuit, the air supply valve is connected to the sand spraying valve through an air circuit, the pre-control air cylinder is connected to the air supply valve through an air circuit, and the pressure regulating unit is connected to the pre-control air cylinder through an air circuit;

[0009] The pressure regulating unit is used to adjust the current air pressure of the first gas supplied by the total air source to the target air pressure according to the pressure regulating signal, and to transmit the target air pressure to the air supply valve using the pre-controlled air cylinder;

[0010] The air supply valve is used to receive the first gas supplied by the total air source and to supply the first gas to the sand-spreading valve based on the target air pressure.

[0011] Optionally, the pressure regulating unit includes a first pressure regulating valve and a second pressure regulating valve; the first pressure regulating valve and the second pressure regulating valve are electrically connected to the control host respectively; the first pressure regulating valve and the second pressure regulating valve are connected through an air circuit, the main air source is connected to the first pressure regulating valve through an air circuit, and the preset air cylinder is connected to the second pressure regulating valve through an air circuit.

[0012] Optionally, the pressure regulating module further includes a pressure limiting valve; the pressure limiting valve is connected to the pressure regulating unit and the main air source respectively through an air circuit;

[0013] The pressure limiting valve is used to limit the maximum air pressure of the first gas delivered from the total air source to the pressure regulating unit.

[0014] Optionally, the device further includes a third pressure regulating valve and an air supply stack valve; the third pressure regulating valve is electrically connected to the control host; the main air source and the air supply stack valve are respectively connected to the third pressure regulating valve through air circuits, and the air supply stack valve is respectively connected to the air supply actuating valve and the sand spraying valve through air circuits;

[0015] The control host is also used to generate a barrier removal signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, and send the barrier removal signal to the pressure regulating unit and the third pressure regulating valve;

[0016] The pressure regulating unit is also used to, upon receiving a fault-clearing signal, transmit the first gas supplied by the total air source to the air supply valve based on the maximum wind pressure;

[0017] The air supply valve is also used to deliver the first gas to the air supply superposition valve based on the maximum air pressure;

[0018] The third pressure regulating valve is used to directly deliver the second gas supplied by the total air source to the air supply superimposed valve when the obstacle removal signal is received;

[0019] The air supply superposition valve is used to superimpose the first gas supplied by the third pressure regulating valve and the second gas supplied by the air supply function valve to obtain a third gas, and then supply the third gas to the sand spraying valve.

[0020] This application also provides a sand spreading method, applied to the sand spreading device as described in any of the above claims, the method comprising:

[0021] Obtain the difference between the target sand application rate and the real-time sand application rate;

[0022] The pressure regulation signal is determined based on the difference between the target sand application rate and the real-time sand application rate;

[0023] The current air pressure of the first gas is adjusted to the target air pressure according to the pressure regulation signal;

[0024] The first gas is delivered for sand spreading based on the target wind pressure.

[0025] Optionally, determining the pressure regulating signal based on the difference between the target sand application rate and the real-time sand application rate includes:

[0026] Determine the current air pressure of the first gas;

[0027] The target wind pressure is determined based on the difference between the target sand spreading amount and the real-time sand spreading amount, as well as the current wind pressure.

[0028] The pressure regulation signal is determined based on the target wind pressure.

[0029] This application also provides a computer device, including: a memory, a processor, and a bus system;

[0030] The memory is used to store programs;

[0031] The processor is used to execute the program in the memory to implement the sand-spreading method described above;

[0032] The bus system is used to connect the memory and the processor to enable communication between the memory and the processor.

[0033] This application also provides a computer-readable storage medium storing instructions that, when run on a computer, cause the computer to perform a sand-spreading method as described above.

[0034] This application provides a sand-spreading device, which includes a main air source, a control unit, a pressure regulating module, and a sand-spreading valve. The control unit is electrically connected to the pressure regulating module. The main air source is connected to the pressure regulating module via an air circuit, and the pressure regulating module is connected to the sand-spreading valve via an air circuit. The control unit generates a pressure regulating signal based on the difference between the target sand-spreading amount and the real-time sand-spreading amount, and sends the pressure regulating signal to the pressure regulating module. The pressure regulating module adjusts the current air pressure of the first gas supplied by the main air source to the target air pressure based on the pressure regulating signal, and supplies the first gas to the sand-spreading valve based on the target air pressure. Therefore, the control unit in this application can generate a pressure regulating signal based on the difference between the target sand-spreading amount and the real-time sand-spreading amount, enabling the pressure regulating module to adjust the current air pressure of the first gas supplied by the main air source to the target air pressure. This allows for real-time adjustment of the sand-spreading amount by adjusting the supply air pressure during sand spreading, thereby improving the sand-spreading effect. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a sand spreading device provided in an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of another sand-spreading device provided in an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of another sand-spreading device provided in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of the structure of another sand spreading device provided in the embodiments of this application;

[0040] Figure 5 This is a schematic flowchart of a sand spreading method provided in an embodiment of this application. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] Sand spreading on railway vehicles is a crucial step in the operation of railway vehicles. Typically, a sand spreading system delivers sand from a sand box to the spreader via pneumatic ducts, and then evenly spreads it onto the rails in front of the wheels. The main purpose of sand spreading is to increase the friction between the wheels and the rails. Especially in adverse weather conditions such as rain, snow, and ice, sand spreading can shorten braking distance and enhance the train's braking effect. Furthermore, when a train starts, goes uphill, or encounters an emergency requiring emergency braking, the adhesion between the wheels and rails may decrease, leading to wheel slippage. Sand spreading increases the coefficient of friction between the wheels and rails, effectively preventing wheel slippage.

[0044] Currently, locomotive sand spreading devices are divided into two categories: gravity-type and differential pressure-type. Standards require a sand spreading rate of 0.3 L / min to 0.7 L / min. Different types of sand spreading devices have different air pressure requirements for the sand spreading air supply. Gravity-type sand spreaders require an air supply pressure of 600 kPa to 900 kPa, while differential pressure-type sand spreaders require approximately 500 kPa. The sand spreading air supply pipeline is equipped with an air pressure regulating valve. Additionally, to adjust the sand spreading rate to meet requirements, a manually adjustable throttle valve is typically installed in the sand spreading air supply pipeline to regulate the flow rate. Because different types of sand spreading devices have different air pressure requirements, and these different air pressures significantly affect the sand spreading rate, the sand spreading air pressure is uncontrollable. It either fluctuates greatly, as with gravity-type sand spreaders, or it remains relatively constant, as with differential pressure-type sand spreaders. Meanwhile, the throttle valve designed at the same time can only be manually adjusted once, and cannot effectively adjust the amount of sand spread in real time during locomotive operation, resulting in poor sand spread effect.

[0045] Therefore, to address the above-mentioned problems, this application provides a sand spreading device, method, equipment, and readable storage medium that can adjust the amount of sand spread in real time.

[0046] Please see Figure 1 , Figure 1 This application illustrates a sand-spreading device according to an embodiment of the present application. The device includes a main air source 20, a control unit 40, a pressure regulating module 10, and a sand-spreading valve 30. The control unit 40 is electrically connected to the pressure regulating module 10. The main air source 20 is connected to the pressure regulating module 10 via an air circuit, and the pressure regulating module is connected to the sand-spreading valve via an air circuit.

[0047] The control host 40 is used to generate a pressure regulating signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, and send the pressure regulating signal to the pressure regulating module 10;

[0048] The pressure regulating module 10 is used to adjust the current air pressure of the first gas delivered by the total air source 20 to the target air pressure according to the pressure regulating signal, and deliver the first gas to the sand spraying valve 30 based on the target air pressure.

[0049] In this embodiment, the control host 40 and the pressure regulating module 10 can be connected by a circuit so that the control host 40 can send the generated pressure regulating signal to the pressure regulating module 10, thereby enabling precise adjustment of the air supply pressure during sand spreading, and thus achieving precise real-time adjustment of the sand spreading amount.

[0050] Understandably, the control host 40 can connect to other external devices via wired or wireless means. It can obtain the difference between the current real-time sand spreading amount and the target sand spreading amount from these external devices. Alternatively, the user can directly input the difference between the current real-time sand spreading amount and the target sand spreading amount into the control host 40, where the target sand spreading amount is the desired sand spreading amount at the current moment. The difference between the current real-time sand spreading amount and the target sand spreading amount can be expressed as ΔQ = Q1 - Q, where Q1 represents the real-time sand spreading amount and Q represents the target sand spreading amount.

[0051] After obtaining the difference between the target sand spreading amount and the real-time sand spreading amount, the control host 40 can determine the pressure regulating signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, so as to accurately adjust the air supply pressure during sand spreading through the pressure regulating signal, thereby achieving precise real-time adjustment of the sand spreading amount.

[0052] Specifically, after the control host 40 obtains the difference between the target sand-spreading amount and the real-time sand-spreading amount, it can determine the current air pressure of the first gas supplied by the total air source at the current moment. The first gas refers to the gas supplied by the total air source to the pressure regulating module 10 through the air path. Then, based on the current air pressure of the first gas and the difference between the target sand-spreading amount and the real-time sand-spreading amount, the target air pressure can be determined. This target air pressure is the air pressure that can adjust the real-time sand-spreading amount to the target sand-spreading amount. Finally, by looking up a table or other methods, a pressure regulating signal that can adjust the current air pressure to the target air pressure can be determined based on the target air pressure. This pressure regulating signal is then sent to the pressure regulating module 10 so that the air supply pressure during sand-spreading can be precisely adjusted, thereby achieving precise real-time adjustment of the sand-spreading amount.

[0053] Furthermore, when the sand-spreading device is first started, the control host 40 can send a start signal to the pressure regulating module 10, so that the pressure regulating module 10 can adjust the supply air pressure of the first gas to the initial air pressure value, so that the sand-spreading valve 30 can spread sand based on the initial air pressure value. The initial air pressure value can be set according to the actual situation, specifically 500 kPa.

[0054] In this embodiment, the main air source 20 and the pressure regulating module 10, as well as the pressure regulating module 10 and the sand spreading valve 30, can be connected by an air circuit so that the supply air pressure of the first gas delivered by the main air source can be adjusted to the target air pressure in real time, thereby realizing the real-time adjustment of the sand spreading amount and improving the sand spreading effect.

[0055] Understandably, after receiving the pressure regulation signal from the control host 40, the pressure regulating module 10 can adjust the current air pressure of the first gas supplied from the main air source 20 to the pressure regulating module 10 through the air path, that is, adjust the current air pressure of the first gas to the target air pressure. Then, based on the target air pressure, the first gas can be supplied to the sand spreading valve 40 so that the sand spreading valve 40 can spread sand based on the target air pressure. Thus, by precisely adjusting the air supply pressure during sand spreading, the amount of sand spread can be precisely and in real time adjusted.

[0056] In one possible implementation, such as Figure 2 As shown, the pressure regulating module 10 includes a pressure regulating unit 100, a pre-control air cylinder 101, and an air supply valve 102; the pressure regulating unit 100 is electrically connected to the control host 40; the pressure regulating unit 100 and the air supply valve 102 are respectively connected to the main air source 20 through an air circuit, the air supply valve 102 is connected to the sand spraying valve 30 through an air circuit, the pre-control air cylinder 101 is connected to the air supply valve 102 through an air circuit, and the pressure regulating unit 100 is connected to the pre-control air cylinder 101 through an air circuit.

[0057] The pressure regulating unit 100 is used to adjust the current air pressure of the first gas supplied by the total air source to the target air pressure according to the pressure regulating signal, and to transmit the target air pressure to the air supply valve 102 using the pre-controlled air cylinder 101.

[0058] The air supply valve 102 is used to receive the first gas supplied by the total air source 20 and to supply the first gas to the sand spraying valve 30 based on the target air pressure.

[0059] In this embodiment, the main air source 20 can deliver the first gas to the pressure regulating module 10 via two paths. Specifically, the first gas can be delivered to the pressure regulating unit 100 via an air path, and also to the air supply valve 102 via an air path. The air volume of the first gas delivered to the air supply valve 102 can be much greater than the air volume of the first gas delivered to the pressure regulating unit 100. After receiving the pressure regulating signal, the pressure regulating unit 100 can adjust the air pressure of the first gas delivered to the pressure regulating unit 100, that is, adjust the current air pressure of the first gas to the target air pressure. The pre-controlled air cylinder 101 can store the adjusted first gas in the pre-controlled air cylinder 101, and transmit the first gas to the air supply valve 102 based on the target air supply pressure through the pre-controlled air cylinder 101.

[0060] After receiving the first gas with a supply air pressure of the target air pressure, the air supply valve 102 can also directly receive a large volume of first gas from the total air source 20. The first gas received directly from the total air source 20 can be the first gas without air pressure adjustment, that is, the supply air pressure of the first gas is the current air pressure. The air supply valve can adjust the first gas with a supply air pressure of the current air pressure directly received from the total air source 20 based on the first gas with a supply air pressure of the target air pressure delivered by the pressure regulating unit 100, so that the supply air pressure of all received first gases is the target air pressure. Then, based on the target air pressure, the first gas is delivered to the sand spreading valve 30. Thus, by precisely adjusting the supply air pressure during sand spreading, the precise real-time adjustment of the sand spreading amount can be achieved.

[0061] In one possible implementation, such as Figure 3 As shown, the pressure regulating unit 100 includes a first pressure regulating valve 1YV and a second pressure regulating valve 2YV; the first pressure regulating valve 1YV and the second pressure regulating valve 2YV are electrically connected to the control host 40 respectively; the first pressure regulating valve 1YV and the second pressure regulating valve 2YV are connected through an air circuit, the main air source 20 is connected to the first pressure regulating valve 1YV through an air circuit, and the preset air cylinder 101 is connected to the second pressure regulating valve 2YV through an air circuit.

[0062] In this embodiment, the pressure regulating unit 100 may be composed of a first pressure regulating valve 1YV and a second pressure regulating valve 2YV, so that the air supply pressure of the first gas delivered to the pressure regulating unit 100 can be adjusted in real time and accurately according to the pressure regulating signal sent by the control host 40, thereby enabling precise real-time adjustment of the sand spreading amount.

[0063] In one possible implementation, the pressure regulating module 10 further includes a pressure limiting valve 103; the pressure limiting valve 103 is connected to the pressure regulating unit 100 and the main air source 20 via air passages.

[0064] The pressure limiting valve 103 is used to limit the maximum air pressure of the first gas delivered from the total air source 20 to the pressure regulating unit 100.

[0065] In this embodiment, a pressure limiting valve 103 can be installed in the air path between the main air source 20 and the pressure regulating unit 100 to limit the maximum air pressure of the first gas that the main air source 20 can deliver to the pressure regulating unit 100. This prevents the supply air pressure of the first gas delivered by the main air source to the pressure regulating unit 100 from being too high and exceeding the load of the pressure regulating unit 100, thus causing damage to the pressure regulating unit 100. That is, if the supply air pressure of the first gas delivered by the main air source 20 is greater than the maximum air pressure, the pressure limiting valve 103 can first adjust the supply air pressure of the first gas delivered by the main air source 20 to the maximum air pressure, and then deliver the first gas delivered by the main air source 20 to the pressure regulating unit 100 at the maximum air pressure.

[0066] In one possible implementation, such as Figure 4 As shown, the device also includes a third pressure regulating valve 3YV and an air supply stack valve 50; the third pressure regulating valve 3YV is electrically connected to the control host 40; the main air source 20 and the air supply stack valve 50 are respectively connected to the third pressure regulating valve 3YV through air circuits, and the air supply stack valve 50 is respectively connected to the air supply valve 102 and the sand spraying valve 30 through air circuits;

[0067] The control host 40 is also used to generate a barrier removal signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, and send the barrier removal signal to the pressure regulating unit 100 and the third pressure regulating valve 3YV;

[0068] The pressure regulating unit 100 is also used to transmit the first gas delivered by the total air source 20 to the air supply valve 102 based on the maximum wind pressure when a fault removal signal is received.

[0069] The air supply valve 102 is also used to deliver the first gas to the air supply superposition valve 50 based on the maximum air pressure;

[0070] The third pressure regulating valve 3YV is used to directly deliver the second gas supplied by the total air source 20 to the air supply superposition valve 50 when the obstacle removal signal is received;

[0071] The air supply superposition valve 50 is used to superimpose the first gas supplied by the third pressure regulating valve 3YV with the second gas supplied by the air supply action valve 102 to obtain a third gas, and then supply the third gas to the sand spraying valve 30.

[0072] In this embodiment, the repair of sand-spreading pipeline blockage can be achieved by additionally setting a third pressure regulating valve 3YV and an air supply superimposed valve 50. After receiving the difference between the target sand-spreading amount and the real-time sand-spreading amount, if the difference between the target sand-spreading amount and the real-time sand-spreading amount is close to the target sand-spreading amount for multiple consecutive sand-spreading cycles, it can be determined that the real-time sand-spreading amount is close to zero for multiple consecutive sand-spreading cycles, that is, the sand-spreading pipeline may be blocked. At this time, the control host 40 can generate a fault-clearing signal and send the fault-clearing signal to the pressure regulating unit 100 and the third pressure regulating valve 3YV.

[0073] After receiving a fault-clearing signal from the control host 40, the pressure regulating unit 100 can directly transmit the first gas supplied by the main air source 20 to the air supply valve 102 at its maximum pressure. The maximum pressure can be the maximum pressure achievable by the first gas supplied from the main air source 20 to the pressure regulating unit 100, it can be directly equal to the current pressure of the first gas supplied from the main air source 20, or it can be the maximum pressure limited by the pressure limiting valve 103. After receiving the first gas supplied by the pressure regulating unit at its maximum pressure, the air supply valve 102 can, based on this maximum pressure, transmit the first gas supplied from the main air source 20 to the air supply superposition valve 50.

[0074] After receiving a fault-clearing signal from the control host 40, the third pressure regulating valve 3YV can directly supply the second gas from the main air source 20 to the air supply superposition valve 50. The supply air pressure of the second gas can be the current air pressure. It can be understood that the second gas is the gas supplied from the main air source 20 to the third pressure regulating valve 3YV through the air passage. After receiving the first gas (with maximum supply pressure) supplied by the air supply valve 102 and the second gas supplied by the third pressure regulating valve 3YV, the air supply superposition valve 50 can superimpose the first and second gases to obtain a third gas with greater air pressure and volume. Furthermore, the air supply superposition valve 50 can directly supply the superimposed third gas to the sand-spreading valve 30, so as to blow away the sand blocking the sand-spreading pipeline with greater and stronger airflow, thereby repairing the blockage fault in the sand-spreading pipeline.

[0075] Therefore, this application provides a sand spreading device. The control host in this application can generate a pressure regulating signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, so that the pressure regulating module can adjust the current wind pressure of the first gas delivered by the total air source to the target wind pressure. Thus, the sand spreading amount can be adjusted in real time by adjusting the air supply pressure during sand spreading, thereby improving the sand spreading effect.

[0076] Please see Figure 5 This application provides a sand spreading method, which specifically includes the following steps.

[0077] S501, Obtain the difference between the target sand spreading amount and the real-time sand spreading amount.

[0078] In this embodiment, the device can connect to other external devices via wired or wireless means. It can obtain the difference between the current real-time sand-spreading amount and the target sand-spreading amount from the external device, or the user can directly input the difference between the current real-time sand-spreading amount and the target sand-spreading amount, where the target sand-spreading amount is the desired sand-spreading amount at the current moment. The difference between the current real-time sand-spreading amount and the target sand-spreading amount can be expressed as ΔQ = Q1 - Q, where Q1 can represent the real-time sand-spreading amount and Q can represent the target sand-spreading amount.

[0079] S502. Determine the pressure regulating signal based on the difference between the target sand spreading amount and the real-time sand spreading amount.

[0080] In this embodiment of the application, after obtaining the difference between the target sand spreading amount and the real-time sand spreading amount, a pressure regulating signal can be determined based on the difference between the target sand spreading amount and the real-time sand spreading amount, so that the air supply pressure during sand spreading can be accurately adjusted through the pressure regulating signal, thereby achieving accurate real-time adjustment of the sand spreading amount.

[0081] In one possible implementation, after obtaining the difference between the target sand-spreading amount and the real-time sand-spreading amount, the current air pressure of the first gas supplied by the total air source at the current moment can be determined. The first gas refers to the gas supplied by the total air source to the pressure regulating module through the gas path. Then, based on the current air pressure of the first gas and the difference between the target sand-spreading amount and the real-time sand-spreading amount, the target air pressure can be determined. This target air pressure is the air pressure that can adjust the real-time sand-spreading amount to the target sand-spreading amount. Finally, a pressure regulating signal that can adjust the current air pressure to the target air pressure can be determined based on the target air pressure using methods such as table lookup. This allows for precise adjustment of the air supply pressure during sand-spreading, thereby achieving precise real-time adjustment of the sand-spreading amount.

[0082] S503. Adjust the current air pressure of the first gas to the target air pressure according to the pressure regulation signal.

[0083] In this embodiment of the application, after the pressure regulating signal is determined, the current air pressure of the first gas delivered from the total air source to the pressure regulating module through the air path can be adjusted according to the pressure regulating signal. That is, the current air pressure of the first gas can be adjusted to the target air pressure, so that the air supply pressure during sand spreading can be precisely adjusted, thereby achieving precise real-time adjustment of the sand spreading amount.

[0084] S504. Based on the target wind pressure, the first gas is delivered for sand spreading.

[0085] In this embodiment of the application, after adjusting the current wind pressure of the first gas to the target wind pressure, the first gas can be delivered to the sand-spreading valve based on the target wind pressure so that sand can be spread based on the target wind pressure. This allows for precise real-time adjustment of the sand-spreading amount by precisely adjusting the air supply pressure during sand spreading.

[0086] Therefore, this application provides a sand spreading method. In this application, a pressure regulating signal can be generated based on the difference between the target sand spreading amount and the real-time sand spreading amount, so that the pressure regulating module can adjust the current wind pressure of the first gas delivered by the total air source to the target wind pressure. Thus, the sand spreading amount can be adjusted in real time by adjusting the air supply pressure during sand spreading, thereby improving the sand spreading effect.

[0087] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0088] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sand-spreading device, characterized in that, The device includes a main air source, a control unit, a pressure regulating module, and a sand-spreading valve; the control unit is electrically connected to the pressure regulating module; the main air source is connected to the pressure regulating module via an air circuit, and the pressure regulating module is connected to the sand-spreading valve via an air circuit; wherein... The control host is used to generate a pressure regulating signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, and send the pressure regulating signal to the pressure regulating module; The pressure regulating module is used to adjust the current air pressure of the first gas delivered by the total air source to the target air pressure according to the pressure regulating signal, and deliver the first gas to the sand spreading valve based on the target air pressure; The pressure regulating module includes a pressure regulating unit, a pre-control air cylinder, and an air supply valve; the pressure regulating unit is electrically connected to the control host; the pressure regulating unit and the air supply valve are respectively connected to the main air source through an air circuit, the air supply valve is connected to the sand spraying valve through an air circuit, the pre-control air cylinder is connected to the air supply valve through an air circuit, and the pressure regulating unit is connected to the pre-control air cylinder through an air circuit. The pressure regulating unit is used to adjust the current air pressure of the first gas supplied by the total air source to the target air pressure according to the pressure regulating signal, and to transmit the target air pressure to the air supply valve using the pre-controlled air cylinder; The air supply valve is used to receive the first gas supplied by the total air source and to supply the first gas to the sand-spreading valve based on the target air pressure.

2. The apparatus according to claim 1, characterized in that, The pressure regulating unit includes a first pressure regulating valve and a second pressure regulating valve; the first pressure regulating valve and the second pressure regulating valve are electrically connected to the control host respectively; the first pressure regulating valve and the second pressure regulating valve are connected through an air circuit, the main air source is connected to the first pressure regulating valve through an air circuit, and the preset air cylinder is connected to the second pressure regulating valve through an air circuit.

3. The apparatus according to claim 1, characterized in that, The pressure regulating module also includes a pressure limiting valve; the pressure limiting valve is connected to the pressure regulating unit and the main air source through air passages. The pressure limiting valve is used to limit the maximum air pressure of the first gas delivered from the total air source to the pressure regulating unit.

4. The apparatus according to claim 1, characterized in that, The device further includes a third pressure regulating valve and an air supply superimposed valve; the third pressure regulating valve is electrically connected to the control host; the main air source and the air supply superimposed valve are respectively connected to the third pressure regulating valve through air circuits, and the air supply superimposed valve is respectively connected to the air supply action valve and the sand spraying valve through air circuits; The control host is also used to generate a barrier removal signal based on the difference between the target sand spreading amount and the real-time sand spreading amount, and send the barrier removal signal to the pressure regulating unit and the third pressure regulating valve; The pressure regulating unit is also used to, upon receiving a fault-clearing signal, transmit the first gas supplied by the total air source to the air supply valve based on the maximum wind pressure; The air supply valve is also used to deliver the first gas to the air supply superposition valve based on the maximum air pressure; The third pressure regulating valve is used to directly deliver the second gas supplied by the total air source to the air supply superimposed valve when the obstacle removal signal is received; The air supply superposition valve is used to superimpose the first gas supplied by the third pressure regulating valve and the second gas supplied by the air supply function valve to obtain a third gas, and then supply the third gas to the sand spraying valve.

5. A method for spreading sand, characterized in that, The method, applied to the sand spreading device as described in any one of claims 1-4, comprises: Obtain the difference between the target sand application rate and the real-time sand application rate; The pressure regulation signal is determined based on the difference between the target sand application rate and the real-time sand application rate. The current air pressure of the first gas is adjusted to the target air pressure according to the pressure regulation signal; The first gas is delivered for sand spreading based on the target wind pressure.

6. The method according to claim 5, characterized in that, The step of determining the pressure regulation signal based on the difference between the target sand application amount and the real-time sand application amount includes: Determine the current air pressure of the first gas; The target wind pressure is determined based on the difference between the target sand spreading amount and the real-time sand spreading amount, as well as the current wind pressure. The pressure regulation signal is determined based on the target wind pressure.

7. A computer device, characterized in that, include: Memory, processor, and bus system; The memory is used to store programs; The processor is configured to execute a program in the memory to implement the method described in any one of claims 5-6; The bus system is used to connect the memory and the processor to enable communication between the memory and the processor.

8. A computer-readable storage medium, characterized in that, The device stores instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 5-6.

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