Sand and gravel detection method and device, electronic equipment and storage

By obtaining the vehicle speed to determine the sand spreading rate and performing time integration, and combining the total amount of sand injected into the sand box to calculate the remaining amount of sand and gravel, the problem of low efficiency in detecting the remaining amount of sand and gravel in the sand box is solved, and the accurate detection of the remaining amount of sand and gravel and the stable operation of the EMU are realized.

CN115560820BActive Publication Date: 2026-02-06CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Patent Information

Application Number
CN202211078529.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-05
Publication Date
2026-02-06
Estimated Expiration
2042-09-05

AI Technical Summary

Technical Problem

In the existing technology, the method for detecting the remaining amount of sand and gravel in the sand box is inefficient and inaccurate, and cannot monitor the specific remaining amount of sand and gravel in the sand box in real time, which leads to unstable operation of the EMU.

Method used

By acquiring the vehicle speed, a matching sand spreading rate is determined, the total sand spreading volume is calculated by time integration, and the remaining sand and gravel volume is calculated by combining the total sand filling volume of the sand box, providing accurate detection of the remaining sand and gravel volume.

Benefits of technology

It enables accurate detection of gravel levels, ensuring the normal operation of EMU trains, improving maintenance efficiency and the accuracy of gravel level checks, and reducing manual intervention.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application provides a gravel detection method and device, electronic equipment and storage medium. In response to a sanding instruction, the current vehicle speed of a vehicle is obtained. Then, a sanding rate matched with the vehicle speed is determined, so that the sanding system of the vehicle performs a spraying operation on the gravel in the sand box according to the sanding rate. Further, the sanding rate is time-integrated to obtain a total sanding amount, and the residual amount of gravel in the sand box is calculated according to the total sanding amount and the corresponding sand injection amount of the sand box. According to the driving state of the vehicle (i.e., the motor train unit), the integral method is used to calculate the total sanding amount of the sanding system for spraying gravel on the track, and the residual amount of gravel in the sand box is calculated in combination with the sand injection amount of the sand box, so that the accurate detection of the residual amount of gravel is realized, and the normal operation of the vehicle is ensured.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of software, more particularly, to a sand detection method and device, electronic equipment and storage medium. BACKGROUND

[0002] Currently, most EMUs are equipped with sanding systems, which are used to spray sand on the track when the adhesion between the wheel and the track is low due to rain, snow or a large number of fallen leaves, temporarily increasing the adhesion coefficient between the wheel and the track to avoid wheel slip.

[0003] The sanding system stores sand in a sand box. As the EMU runs, the sand will gradually be consumed, so it is necessary to regularly monitor the amount of sand in the sand box to ensure the normal operation of subsequent EMUs.

[0004] Therefore, how to accurately detect the amount of sand in the sand box is a problem that needs to be solved in the field. SUMMARY

[0005] Therefore, in order to solve the above problems, the present application provides a sand detection method and device, electronic equipment and storage medium, and the technical solutions are as follows:

[0006] A sand detection method, the method comprising:

[0007] In response to a sanding instruction, obtaining the current vehicle speed of the vehicle;

[0008] Determining a sanding rate matched with the vehicle speed, so that the sanding system of the vehicle performs a spraying operation on the sand in the sand box according to the sanding rate;

[0009] Time-integrating the sanding rate to obtain a total sanding amount, and calculating the amount of sand in the sand box according to the total sanding amount and the total sand injection amount corresponding to the sand box.

[0010] Preferably, the response to the sanding instruction comprises:

[0011] Responding to a manual sanding instruction or an automatic sanding instruction.

[0012] Preferably, the determination of the sanding rate matched with the vehicle speed comprises:

[0013] Determining the working state of the sanding system according to the vehicle speed;

[0014] Determining the sanding rate according to the working state of the sanding system.

[0015] Preferably, the method further comprises:

[0016] Calculating the sand remaining ratio in the sand box according to the amount of sand and the total sand injection amount.

[0017] Preferably, the method further comprises:

[0018] If the sand residue is less than the preset sand level threshold, output an alarm information.

[0019] Preferably, the method further comprises:

[0020] In response to a reset instruction, clear the alarm information and the total sanding amount.

[0021] A sand detection device, the device comprising:

[0022] An acquisition module configured to acquire a current vehicle speed of a vehicle in response to a sanding instruction;

[0023] A determination module configured to determine a sanding rate matched with the vehicle speed, so that a sanding system of the vehicle performs a spraying operation on sand in a sand box at the sanding rate;

[0024] A calculation module configured to time-integrate the sanding rate to obtain a total sanding amount, and calculate a sand residue in the sand box according to the total sanding amount and a total sand injection amount corresponding to the sand box.

[0025] Preferably, the determination module configured to determine the sanding rate matched with the vehicle speed is specifically configured to:

[0026] determine a working state of the sanding system according to the vehicle speed; and determine the sanding rate according to the working state of the sanding system.

[0027] An electronic device, comprising at least one memory and at least one processor; the memory stores an application program, and the processor invokes the application program stored in the memory, and the application program is used to implement the sand detection method.

[0028] A storage medium, which stores computer program code, and the computer program code implements the sand detection method when executed.

[0029] Compared with the prior art, the present application has the following beneficial effects:

[0030] The application provides a sand detection method, device, electronic equipment and storage medium. In response to a sanding instruction, a current vehicle speed of a vehicle is obtained. Then, a sanding rate matched with the vehicle speed is determined, so that the sanding system of the vehicle performs a spraying operation on sand in a sand box according to the sanding rate. Further, the sanding rate is time-integrated to obtain a total sanding amount, and the sanding total amount and a corresponding sand injection total amount of the sand box are used to calculate a sand residue amount in the sand box. The application can calculate the total sanding amount of the sanding system spraying sand on the track according to the running state of the vehicle (i.e., motor train unit) by using the integral method, and then calculate the sand residue amount in the sand box in combination with the sand injection total amount of the sand box, so as to realize accurate detection of the sand residue amount and ensure normal operation of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0032] Figure 1 Method flowchart of the sand detection method provided by the embodiment of the present application;

[0033] Figure 2 Another method flowchart of the sand detection method provided by the embodiment of the present application;

[0034] Figure 3 Part of the method flowchart of the sand detection method provided by the embodiment of the present application;

[0035] Figure 4 Another method flowchart of the sand detection method provided by the embodiment of the present application;

[0036] Figure 5 Another method flowchart of the sand detection method provided by the embodiment of the present application;

[0037] Figure 6 Another method flowchart of the sand detection method provided by the embodiment of the present application;

[0038] Figure 7 Structure schematic diagram of the sand detection device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0039] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] The use and operation of the sanding system are greatly related to the weather conditions, line conditions, and driver's operation habits of the operation line, so the consumption of the sand in the sand box has no obvious rule. Currently, the inspection of the sand residue in the sand box has the following two methods:

[0042] 1) Manual inspection: manually inspect the remaining sand in the sand box at regular intervals, and supplement the sand when it is insufficient. 2) Sand level sensor inspection: sand level sensors are arranged at different positions of the side wall of the sand box, and the sand level of the sand residue is identified by the sand level sensors.

[0043] The above-mentioned sand residue inspection methods have the following problems:

[0044] 1) Manual inspection: time-consuming and labor-intensive, low efficiency. 2) Sand level sensor inspection: the sand level sensor can only check whether it reaches the specified sand level, and cannot indicate the specific sand level in real time; and because the sand in the sand box has poor flowability, there is a situation that the sand is accumulated around and there is no sand in the middle, which causes the sanding to be impossible, and in this case, the sand level sensor inspection still shows that there is sand, and the detection accuracy is poor.

[0045] To solve the above-mentioned problems, the present application provides a sand detection method, device, electronic equipment and storage medium, which can accurately evaluate the current remaining sand in the sand box (i.e. sand residue), and can provide the operation and maintenance company with data in the form of data, so as to facilitate the replenishment of materials according to the actual consumption, and reduce the labor.

[0046] Referring to Figure 1 , Figure 1 The sand detection method provided in the embodiments of the present application has a method flowchart, and the sand detection method comprises the following steps:

[0047] S10, in response to the sanding instruction, acquiring the current vehicle speed of the vehicle.

[0048] In the embodiments of the present application, the sanding instruction and vehicle speed of the vehicle (i.e. motor train unit, hereinafter referred to as motor train unit) can be obtained by using a signal acquisition device and a train network. Among them, the vehicle speed describes the speed of the current motor train unit.

[0049] Specifically, whether to perform sanding is determined according to the sanding instruction. In response to the sanding instruction, different types of sanding instructions can be responded to, different sanding instructions can be obtained through different instruction input ports, and common motor train units generally include two types of sanding instructions, namely, a manual sanding instruction and an automatic sanding instruction. In response to the sanding instruction, the following steps can be specifically performed, and a method flowchart is shown in Figure 2

[0050] S101, in response to the manual sanding instruction or the automatic sanding instruction.

[0051] In actual application, a set or logic module can be provided, and after any one of the manual sanding instruction and the automatic sanding instruction is input, an activation instruction can be output to trigger the switch module to output a subsequent obtained sanding rate to the integrator for time integration.

[0052] Of course, if neither of the manual sanding instruction and the automatic sanding instruction is input, no activation instruction is output, and the switch module is not triggered to output any data.

[0053] S20, determining a sanding rate matched with the vehicle speed, so that the sanding system of the vehicle performs a spraying operation on the sand in the sand box according to the sanding rate.

[0054] In the embodiment of the present application, the vehicle speed can represent the current driving state of the motor train unit, and considering the control logic of the sanding system, the driving state can be used to determine whether the sanding system needs to perform high-speed sanding or low-speed sanding, and then determine the corresponding sanding rate.

[0055] The sanding system of the motor train unit can control the sanding device according to the sanding rate, and the sanding device can perform a spraying operation on the sand in the sand box to spray sand on the track.

[0056] In the specific implementation process, the step of "determining a sanding rate matched with the vehicle speed" in step S20 can adopt the following steps, and a method flowchart is shown in Figure 3

[0057] S201, determining the working state of the sanding system according to the vehicle speed.

[0058] In the embodiment of the present application, a sanding control database is established according to the control logic of each type of sanding system, and the sanding control database records the working state of each type of sanding system under different vehicle speeds, including high-speed sanding, low-speed sanding, and the like.

[0059] In this way, after obtaining the current vehicle speed of the motor train unit, the sanding control database can be queried according to the vehicle speed to determine the working state of the sanding system matched with the vehicle speed, such as high-speed sanding or low-speed sanding, and the like ​​

[0060] S202, determining the sanding rate according to the working state of the sanding system.

[0061] In the embodiment of the present application, a sanding rate database is established according to the test data of the gantry of each type of sanding device, the data provided by the sanding device supplier and other information. The sanding rate database records the sanding rate of each type of sanding device under different working states of the sanding system.

[0062] In this regard, after obtaining the working state of the sanding system, the sanding rate database can be queried according to the working state of the sanding system to determine the sanding rate of the sanding device matched with the working state of the sanding system. Thus, the sanding rate of the sanding device meeting the requirements can be output.

[0063] According to the input signal (i.e. vehicle speed), the working performance of the sanding device under different control conditions in the pre-set sanding control database and sanding rate database is obtained, and then the current sanding rate is calculated.

[0064] S30, time integration of the sanding rate to obtain the total sanding amount, and calculation of the sand residue in the sand box according to the total sanding amount and the total sand injection amount corresponding to the sand box.

[0065] In the embodiment of the present application, the total sand injection amount of the sand box in the motor train unit can be pre-set, and then modified according to the operation experience.

[0066] After inputting any one of the manual sanding instruction and the automatic sanding instruction, an activation instruction can be output to trigger the switch module to output the obtained sanding rate to the integrator for time integration. The integrator integrates the sanding rate according to time, and the integration result is the total amount of sanding device spraying sand on the track, i.e. the total sanding amount.

[0067] Further, the difference between the total sand injection amount and the total sanding amount is taken as the sand residue in the sand box. Of course, in some scenarios, the obtained sand residue can also be modified according to the field operation data to obtain the final sand residue. It should be noted that the sand residue can be output in the form of units such as kg.

[0068] In some embodiments, in order to clearly show the sand residue, the sand residue detection method provided by the embodiment of the present application can further include the following steps, and the method flow chart is as shown in Figure 4

[0069] S40, calculating the sand residue ratio in the sand box according to the sand residue and the total sand injection amount.

[0070] ​In the embodiment of the present application, the ratio of the sand residue amount to the total sand injection amount can be taken as the proportion of the sand residue amount in the total sand injection amount, that is, the sand residue proportion, which can be output in the form of percentage.

[0071] In some embodiments, to timely alert the operation and maintenance unit to supplement the sand box, the sand residue detection method provided by the embodiment of the present application can further include the following steps, and the method flow chart is as shown in Figure 5

[0072] S50, if the sand residue amount is less than the preset sand level threshold, output an alarm information.

[0073] In the embodiment of the present application, the sand level threshold can be set in advance, which has the same unit as the sand residue amount and is the limit value of the low sand level warning. After obtaining the sand residue amount, the sand residue amount can be compared with the sand level threshold; if the sand residue amount is less than the sand level threshold, an alarm information is output to remind the operation and maintenance personnel to supplement the sand in time.

[0074] Of course, if the sand residue amount is not less than the sand level threshold, no information is output.

[0075] In some embodiments, the operation and maintenance unit will reset after supplementing the sand box. For this purpose, the sand residue detection method provided by the embodiment of the present application can further include the following steps, and the method flow chart is as shown in Figure 6

[0076] S60, in response to the reset instruction, clear the alarm information and the total sand injection amount.

[0077] In the embodiment of the present application, the signal of the reset instruction is the signal manually activated by the operation and maintenance personnel after the sand box is re-injected with sand, which is used to clear the data of the previous integration and reset the alarm signal of the low sand level to start the calculation again.

[0078] For this purpose, after the reset instruction is input, the alarm information and the total sand injection amount obtained by the current integration can be cleared, and the total sand injection amount is re-integrated.

[0079] The sand residue detection method provided by the embodiment of the present application can calculate the sand residue amount according to the sand injection device and the sand injection system control logic installed on the motor train unit, can set a proper low sand level alarm limit value to realize the low sand level alarm function, can feed back the operation and maintenance unit to facilitate the operation and maintenance unit to master the actual sand level situation of the motor train unit, can effectively manage the inventory, can save resources, and can improve the sand level inspection efficiency and accuracy.

[0080] Based on the sand residue detection method provided by the embodiment of the present application, the embodiment of the present application correspondingly provides a device for executing the sand residue detection method, and the structural schematic diagram of the device is as shown in Figure 7 , which includes:

[0081] ​​The acquisition module 10 is configured to acquire the current vehicle speed of the vehicle in response to the sanding instruction.

[0082] The determination module 20 is configured to determine a sanding rate matched with the vehicle speed, so that the sanding system of the vehicle performs a spraying operation on the sand in the sand box at the sanding rate.

[0083] The calculation module 30 is configured to time-integrate the sanding rate to obtain a sanding total amount, and calculate a sand residue in the sand box according to the sanding total amount and a sand injection total amount corresponding to the sand box.

[0084] Optionally, the acquisition module 10 configured to acquire the sanding instruction is specifically configured to:

[0085] respond to a manual sanding instruction or an automatic sanding instruction.

[0086] Optionally, the determination module 20 configured to determine the sanding rate matched with the vehicle speed is specifically configured to:

[0087] determine a working state of the sanding system according to the vehicle speed, and determine the sanding rate according to the working state of the sanding system.

[0088] Optionally, the calculation module 30 is further configured to:

[0089] calculate a sand residue ratio in the sand box according to the sand residue and the sand injection total amount.

[0090] Optionally, the calculation module 30 is further configured to:

[0091] if the sand residue is less than a preset sand level threshold, output an alarm information.

[0092] Optionally, the device further includes:

[0093] a reset module configured to clear the alarm information and the sanding total amount in response to a reset instruction.

[0094] It should be noted that the detailed functions of each module in the embodiments of the present application can be referred to the corresponding disclosure part of the sand residue detection method embodiments described above, and will not be repeated here.

[0095] Based on the sand residue detection method provided in the above embodiments, the embodiments of the present application further provide an electronic device, which includes at least one memory and at least one processor; the memory stores an application program, and the processor invokes the application program stored in the memory, and the application program is used to implement the sand residue detection method.

[0096] Based on the sand residue detection method provided in the above embodiments, the embodiments of the present application further provide a storage medium, which stores computer program code, and the computer program code is executed to implement the sand residue detection method.

[0097] The sand and gravel detection method, device, electronic equipment and storage medium provided by the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. Therefore, the content of the specification should not be understood as a limitation of the present application.

[0098] It should be noted that each of the embodiments in the specification adopts a progressive manner for description, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0099] It should also be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements, or including the elements inherent in the process, method, article or equipment, or further including the elements inherent in the process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0100] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting gravel, characterized in that, The method includes: In response to the sand-spreading command, obtain the vehicle's current speed and output an activation command; The working status of the sand spreading system is determined by querying the sand spreading control database based on the vehicle speed. The sand spreading control database is established based on the control logic of various types of sand spreading systems and records the working status of each type of sand spreading system at different vehicle speeds. The sand spreading rate database is queried according to the working status of the sand spreading system to determine the sand spreading rate of the sand spreading device that matches the working status of the sand spreading system, so that the sand spreading system of the vehicle can perform the sand spreading operation on the sand and gravel in the sand box according to the sand spreading rate; the sand spreading rate database is established based on bench test data of various types of sand spreading devices and data provided by sand spreading device suppliers, and records the sand spreading rate of each type of sand spreading device under different working statuses of its respective sand spreading system; In response to the activation command, the sand spreading rate is output to the integrator, which continuously integrates the sand spreading rate over time to obtain the total sand spreading amount, and calculates the remaining amount of sand in the sand box based on the total sand spreading amount and the corresponding total sand injection amount of the sand box.

2. The method according to claim 1, characterized in that, The response to the sand-spreading command includes: Respond to manual or automatic sand spreading commands.

3. The method according to claim 1, characterized in that, The method further includes: The percentage of remaining sand and gravel in the sand box is calculated based on the remaining amount of sand and gravel and the total amount of sand injected.

4. The method according to claim 1, characterized in that, The method further includes: If the remaining amount of gravel is less than the preset gravel level threshold, an alarm message will be output.

5. The method according to claim 4, characterized in that, The method further includes: In response to the reset command, the alarm information and the total amount of sand applied are cleared.

6. A gravel detection device, characterized in that, The device includes: The acquisition module is used to acquire the current vehicle speed in response to the sand-spreading command; the sand-spreading command is also used to output an activation command. The determination module is used to query the sand spreading control database based on the vehicle speed to determine the working status of the sand spreading system. The sand spreading control database is established based on the control logic of various types of sand spreading systems and records the working status of each type of sand spreading system at different vehicle speeds. Based on the working status of the sand spreading system, the module queries the sand spreading rate database to determine the sand spreading rate of the sand spreading device that matches the working status of the sand spreading system, so that the sand spreading system of the vehicle performs the spraying operation on the sand and gravel in the sand box according to the sand spreading rate. The sand spreading rate database is established based on bench test data of various types of sand spreading devices and data provided by sand spreading device suppliers, and records the sand spreading rate of each type of sand spreading device under different working states of its respective sand spreading system. The calculation module is used to output the sand spreading rate to the integrator in response to the activation command, so that the integrator continuously integrates the sand spreading rate over time to obtain the total sand spreading amount, and calculates the remaining amount of sand in the sand box based on the total sand spreading amount and the total sand injection amount corresponding to the sand box.

7. An electronic device, characterized in that, The electronic device includes: at least one memory and at least one processor; the memory stores an application program, and the processor calls the application program stored in the memory, the application program being used to implement the gravel detection method according to any one of claims 1-5.

8. A storage medium, characterized in that, The storage medium stores computer program code, which, when executed, implements the gravel detection method according to any one of claims 1-5.

Citation Information

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