Dump truck unloading method, device, equipment, storage medium and program product

Abstract

This application relates to a method, apparatus, computer equipment, storage medium, and computer program product for unloading materials from a dump truck. The method includes: when the dump truck is ready to unload materials, controlling the extension of a lifting hydraulic cylinder via a parking power take-off controller and acquiring the displacement information of the lifting hydraulic cylinder; when the lifting hydraulic cylinder reaches the end of its stroke, controlling the activation of multiple strain sensors and acquiring the strain of the truck bed floor measured by the multiple strain sensors; and controlling an automatic vibrator to perform the unloading task based on the strain of the truck bed floor. This method enables the automatic vibrator to perform the unloading task based on the strain measured by multiple strain sensors deployed on the truck bed floor when the lifting hydraulic cylinder reaches the end of its stroke, thereby improving unloading efficiency while ensuring personnel safety.

Description

Technical Field

[0001] This application relates to the field of dump truck technology, and in particular to a dump truck unloading method, apparatus, computer equipment, storage medium and computer program product. Background Technology

[0002] With the development of vehicle technology, automatic loading and unloading technology for dump trucks has emerged. This technology is widely used in industries such as construction, water conservancy, and mining for short-distance transportation of various bulk materials such as concrete, sand, asphalt, coal, and silt. Among these, materials such as sand and coal have relatively low viscosity, and dump trucks can completely unload them by lifting them with hydraulic cylinders.

[0003] However, when transporting highly viscous materials such as asphalt and silt, these materials adhere to the cargo box floor, making it impossible to completely unload them using only the lifting hydraulic cylinder. Furthermore, if the driver uses the lifting hydraulic cylinder, they must either lurch forward and brake suddenly or pound the cargo box to completely unload the material, severely impacting unloading efficiency. Additionally, the high risk factor arises because dump trucks are typically driven on rough roads. Summary of the Invention

[0004] Therefore, it is necessary to provide a dump truck unloading method, device, computer equipment, computer-readable storage medium, and computer program product that can improve the unloading efficiency of dump trucks while ensuring safety, in order to address the above-mentioned technical problems.

[0005] Firstly, this application provides a method for unloading cargo from a dump truck. Applied to a dump truck, the dump truck includes a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors, and a truck bed. The linkage mechanism includes a linkage and an automatic vibrator. The multiple strain sensors are deployed on the floor of the truck bed. The method includes:

[0006] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0007] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0008] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0009] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0010] In one embodiment, the strain includes a first strain measured in real time; controlling the automatic vibrator to perform the unloading task based on the strain of the carriage floor includes:

[0011] Calculate the first average strain based on the first strain measured by the plurality of strain sensors;

[0012] Determine whether the first average strain is not less than the preset sensor error;

[0013] If the first average strain is not less than the preset sensor error, then the automatic vibrator is controlled to perform the unloading task.

[0014] In one embodiment, the strain includes an initial strain measured when the lifting hydraulic cylinder reaches the end of its stroke; the step of controlling the automatic vibrator to perform the unloading task when the first average strain is greater than or equal to the preset sensor error includes:

[0015] If the first average strain is not less than the preset sensor error, then the second average strain is calculated based on the initial strain measured by the plurality of strain sensors.

[0016] The automatic vibrator is controlled to perform the unloading task based on the first average strain and the second average strain.

[0017] In one embodiment, the dump truck includes a time relay; controlling the automatic vibrator to perform the unloading task based on the first average strain and the second average strain includes:

[0018] Obtain a preset time interval, which is the minimum time interval set for the time relay;

[0019] The automatic vibrator is controlled to perform the unloading task based on the first average strain, the second average strain, and the preset time interval.

[0020] In one embodiment, controlling the automatic vibrator to perform the unloading task based on the first average strain, the second average strain, and a preset time interval includes:

[0021] The energizing time interval of the time relay is calculated based on the first average strain, the second average strain, and the preset time interval;

[0022] The output frequency of the automatic vibrator is controlled according to the energizing time interval of the time relay to perform the unloading task.

[0023] In one embodiment, calculating the energizing time interval of the time relay based on the first average strain, the second average strain, and the preset time interval includes:

[0024] Based on the first average strain, the second average strain, and the preset time interval, the energizing time interval of the time relay is increased through a preset frequency conversion control algorithm.

[0025] Secondly, this application also provides a dump truck unloading device. Applied to a dump truck, the dump truck includes a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors, and a truck bed. The linkage mechanism includes a linkage and an automatic vibrator. The multiple strain sensors are deployed on the floor of the truck bed. The device includes:

[0026] The displacement information acquisition module is used to control the extension of the lifting hydraulic cylinder through the parking power take-off controller and acquire the displacement information of the lifting hydraulic cylinder when the dump truck is preparing to unload materials.

[0027] The stroke end point determination module is used to determine whether the lifting hydraulic cylinder has reached the stroke end point based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator.

[0028] The strain acquisition module is used to control the activation of the plurality of strain sensors and acquire the strain of the vehicle floor plate measured by the plurality of strain sensors when the lifting hydraulic cylinder reaches the end of the stroke.

[0029] The task execution module is used to control the automatic vibrator to perform the unloading task based on the strain of the carriage floor.

[0030] Thirdly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to perform the following steps:

[0031] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0032] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0033] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0034] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0035] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0036] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0037] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0038] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0039] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0040] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, performs the following steps:

[0041] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0042] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0043] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0044] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0045] The aforementioned dump truck unloading method, device, computer equipment, storage medium, and computer program products determine whether the lifting hydraulic cylinder has reached its stroke end point by using the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator. If the lifting hydraulic cylinder has reached its stroke end point, multiple strain sensors are activated to acquire the strain of the truck bed measured by these sensors. Based on the strain of the truck bed, the automatic vibrator is controlled to perform the unloading task. By controlling the automatic vibrator to perform the unloading task based on the strain measured by multiple strain sensors deployed on the truck bed when the lifting hydraulic cylinder has reached its stroke end point, the unloading efficiency is improved while ensuring personnel safety. Attached Figure Description

[0046] Figure 1 This is a flowchart illustrating a dump truck unloading method in one embodiment;

[0047] Figure 2 This is a structural diagram of the auxiliary unloading structure in one embodiment;

[0048] Figure 3 This is a structural diagram showing the deployment of a strain sensor in one embodiment;

[0049] Figure 4 This is a structural diagram of the control circuit in one embodiment;

[0050] Figure 5 This is a flowchart illustrating the control strategy in one embodiment;

[0051] Figure 6 This is a structural block diagram of a dump truck unloading device in one embodiment;

[0052] Figure 7 This is an internal structural diagram of a computer device in one embodiment;

[0053] Explanation of reference numerals in the attached figures:

[0054] 1-1: Carriage; 1-2: Car frame; 1-3: Carriage base; 1-4: Automatic vibrator; 1-5: Linkage rod; 1-6: Car frame base; 1-7: Lifting hydraulic cylinder; 1-8: Lifting hydraulic cylinder displacement sensor; 1-9: Strain sensor; 3-1: Front part of the carriage; 3-2: Rear part of the carriage; 3-3: Carriage centerline. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0056] In one embodiment, such as Figure 1 As shown, a method for unloading cargo from a dump truck is provided. The dump truck includes a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors, and a truck bed. The linkage mechanism includes a linkage and an automatic vibrator. The multiple strain sensors are deployed on the floor of the truck bed. The method includes the following steps:

[0057] Step 102: When the dump truck is ready to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is obtained.

[0058] The parking power take-off controller is used to control the extension and retraction of the lifting hydraulic cylinder. The displacement information of the lifting hydraulic cylinder is the distance that the parking power take-off controller moves to control the extension of the lifting hydraulic cylinder.

[0059] Multiple strain sensors are deployed on the floor of the carriage. The location and number of strain sensors are determined based on the actual situation, including the structure of the entire carriage, the location of the automatic vibrators, and the pattern of cargo descent.

[0060] In some embodiments, the dump truck includes a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors, a truck body, and displacement sensors for the lifting hydraulic cylinder; the linkage mechanism includes a linkage and an automatic vibrator; and multiple strain sensors are deployed on the floor of the truck body. The displacement sensors for the lifting hydraulic cylinder are located at the extended end of the lifting hydraulic cylinder, for example, the displacement sensor is built into the lifting hydraulic cylinder of the dump truck.

[0061] Optionally, when the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is measured by the lifting hydraulic cylinder displacement sensor. As the lifting hydraulic cylinder rises, the linkage mechanism extends accordingly.

[0062] Step 104: Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke.

[0063] The position information of the automatic vibrator can include whether the automatic vibrator is perpendicular to the floor of the carriage or not.

[0064] Optionally, based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, it can be determined whether the lifting hydraulic cylinder has reached the end of its stroke. Specifically, the position information of the automatic vibrator can be set so that the lifting hydraulic cylinder reaches the end of its stroke when it is perpendicular to the floor of the vehicle body.

[0065] In practical applications, since the lifting stroke of the hydraulic cylinder is fixed, when the displacement information of the hydraulic cylinder measured by the displacement sensor reaches a preset value, it can be determined that the hydraulic cylinder has reached the end of its stroke. Specifically, the preset value can be set according to the actual situation, and this invention does not limit it.

[0066] For example, the extension of the lifting hydraulic cylinder stops when the lifting hydraulic cylinder reaches the end of its stroke.

[0067] refer to Figure 2 The diagram shows the structure of the auxiliary unloading structure in an embodiment of the present invention. The auxiliary unloading structure includes a cargo box 1-1, a frame 1-2, a cargo box base 1-3, an automatic vibrator 1-4, a connecting rod 1-5, a frame base 1-6, a lifting hydraulic cylinder 1-7, a lifting hydraulic cylinder displacement sensor 1-8, and a strain sensor 1-9. The connecting rod mechanism includes the automatic vibrator 1-4 and the connecting rod 1-5. The automatic vibrator 1-4 is connected to the frame 1-2 through the connecting rod mechanism.

[0068] Based on the layout space and structural characteristics of dump trucks, the frame bases 1-6 are fixed to the frame with bolts. The actual position of the frame bases can be determined according to the length of the linkage mechanism.

[0069] The carriage base 1-3 is bolted to the carriage and connected to the frame base 1-6 via a linkage mechanism. The linkage mechanism consists of two links, one of which is an automatic vibrator. The linkage mechanism is used to retract and expand in response to the movement of the lifting hydraulic cylinder 1-7. When the lifting hydraulic cylinder 1-7 reaches its stroke end, the automatic vibrator should be perpendicular to the carriage floor to achieve optimal vibration.

[0070] In some embodiments, due to the different models of automatic vibrators required by the market, but to ensure the versatility of the entire solution, a minimum length for connecting rods 1-5 can be set. Specifically,

[0071]

[0072] Among them, h min Here, H is the minimum length of connecting rod 1-5; H is the distance from lifting hydraulic cylinder 1-7 to the floor of carriage 1-1 (along the extension direction of the lifting hydraulic cylinder); L is the distance from the base of lifting hydraulic cylinder 1-7 to the rear end of frame 1-2; B is the vertical distance from the center of frame base 1-6 to the upper wing surface of frame 1-2; sinα is the horizontal tilt angle of lifting hydraulic cylinder 1-7; A is the length of the automatic vibrator; and C is the vertical distance from the center of carriage base 1-3 to the floor of carriage 1-1. For more details, please refer to... Figure 2 .

[0073] Step 106: When the lifting hydraulic cylinder reaches the end of its stroke, the plurality of strain sensors are activated, and the strain of the vehicle floor measured by the plurality of strain sensors is obtained.

[0074] Among them, the strain sensor is used to measure the strain of the car floor to detect the strain of the car floor.

[0075] In practical applications, the strain on the car floor is due to cargo on its surface, which deforms under the weight of the cargo. Therefore, if strain sensors can measure the strain, it means that cargo remains on the surface of the car.

[0076] In one embodiment, when the lifting hydraulic cylinder reaches the end of its stroke, multiple strain sensors are activated to acquire the strain of the vehicle floor measured by the multiple strain sensors.

[0077] Step 108: Control the automatic vibrator to perform the unloading task according to the strain of the carriage floor.

[0078] The unloading task involves the dump truck unloading all the materials from the truck bed.

[0079] Optionally, if the lifting hydraulic cylinder has not reached the end of its stroke, the material is unloaded by extending the lifting hydraulic cylinder; if the lifting hydraulic cylinder has reached the end of its stroke, the strain measured by the strain sensor is used to control the automatic vibrator to perform the unloading task of the remaining material.

[0080] In the above-mentioned unloading method for dump trucks, the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator are used to determine whether the lifting hydraulic cylinder has reached the end of its stroke. If the lifting hydraulic cylinder has reached the end of its stroke, multiple strain sensors are activated to obtain the strain of the truck bed measured by the multiple strain sensors. Based on the strain of the truck bed, the automatic vibrator is controlled to perform the unloading task. By controlling the automatic vibrator to perform the unloading task based on the strain measured by multiple strain sensors deployed on the truck bed when the lifting hydraulic cylinder has reached the end of its stroke, the unloading efficiency is improved while ensuring personnel safety.

[0081] In one embodiment, step 108 includes:

[0082] Step 1082: Calculate the first average strain based on the first strain measured by the plurality of strain sensors.

[0083] Multiple strain sensors are deployed on the floor of the carriage, and the first strain is the strain measured in real time by the multiple strain sensors.

[0084] Optionally, a first average dependent variable can be calculated based on multiple first dependent variables.

[0085] To better understand the method of deploying strain sensors on the floor of the dump truck in this embodiment, Figure 2 In terms of structure, taking the installation of 6 strain sensors as an example, refer to... Figure 3 The diagram shows the structural arrangement of the strain sensors. The carriage 1-1 is divided into front and rear sections by the centerline of the carriage base 1-3. The front section 3-1 of carriage 1-1 is further divided into two rectangles by the centerline 3-3. Two strain sensors 1-9 are placed at the intersection of the diagonals of these two rectangles, with coordinates (Q / 2, T / 4) and (Q / 2, 3T / 4), respectively. Here, T is the width of the carriage, and Q is the distance from the centerline of the carriage base 1-3 to the front end of carriage 1-1. The distance; the rear part 3-2 of carriage 1-1 is divided into 8 triangles by the center line 3-3 of the carriage and the diagonal of the rectangle. The center of gravity of the four triangles closest to the base 1-3 of the carriage and the rear end of carriage 1-1 are used to arrange the sensors. The coordinates of the arrangement points are (Q+F / 6, T / 4), (Q+F / 6, 3T / 4), (Q+5F / 6, T / 4), (Q+5F / 6, 3T / 4), where F is the distance from the center line of the base 1-3 of the carriage to the rear end of carriage 1-1.

[0086] Step 1084: Determine whether the first average strain is not less than the preset sensor error.

[0087] The preset sensor error is determined based on the actual selected strain sensor.

[0088] For example, taking 6 strain sensors as an example, the calculation is as follows:

[0089]

[0090] Where, Δ n δ represents the strain displayed by strain sensors 1-9; n is the number of sensors, n = 1, 2, 3, 4, 5, 6; δ is the preset sensor error.

[0091] Step 1086: If the first average strain is not less than the preset sensor error, then control the automatic vibrator to perform the unloading task.

[0092] In some embodiments, if the first average strain is not less than a preset sensor error, the automatic vibrator is controlled to perform the unloading task.

[0093] In the above embodiment, a first average strain is calculated based on the first strain obtained by real-time measurement. If the first average strain is not less than the preset sensor error, the automatic vibrator is controlled to perform the unloading task, thus avoiding the situation where the automatic vibrator does useless work due to sensor error.

[0094] In one embodiment, controlling the automatic vibrator to perform the unloading task when the first average strain is greater than or equal to the preset sensor error includes:

[0095] If the first average strain is not less than the preset sensor error, then the second average strain is calculated based on the initial strain measured by the plurality of strain sensors; and the automatic vibrator is controlled to perform the unloading task based on the first average strain and the second average strain.

[0096] The initial strain measured by multiple strain sensors is the strain measured when the strain sensors are activated after the lifting hydraulic cylinder reaches the end of its stroke.

[0097] Specifically, when the first average strain is not less than the preset sensor error, the automatic vibrator is controlled to perform the unloading task based on the first average strain and the second average strain.

[0098] In the above embodiment, when the first average strain is not less than the preset sensor error, the second average strain of the initial strain is calculated. Based on the first average strain and the second average strain, the automatic vibrator is controlled to perform the unloading task. This achieves the goal of controlling the automatic vibrator by the average value of the initial strain and the average value of the real-time strain while improving unloading efficiency. This optimizes the usage frequency of the automatic vibrator and improves its service life.

[0099] In one embodiment, controlling the automatic vibrator to perform the unloading task based on the first average strain and the second average strain includes:

[0100] A preset time interval is obtained, which is the minimum time interval set for the time relay; the automatic vibrator is controlled to perform the unloading task based on the first average strain, the second average strain, and the preset time interval.

[0101] The dump truck includes a time relay, which can control an automatic vibrator to perform unloading tasks.

[0102] The preset time interval is the minimum time interval set by the time relay, which is related to the actual time relay selected.

[0103] Specifically, by acquiring a preset time interval, the automatic vibrator is controlled to perform the unloading task based on the first average strain, the second average strain, and the preset time interval.

[0104] In the above embodiments, the automatic vibrator is controlled to perform unloading tasks by using the minimum time interval of the time relay, the first average strain, and the second average strain, thereby optimizing the usage frequency of the automatic vibrator and improving its service life.

[0105] In one embodiment, controlling the automatic vibrator to perform the unloading task based on the first average strain, the second average strain, and a preset time interval includes:

[0106] The energizing time interval of the time relay is calculated based on the first average strain, the second average strain, and the preset time interval; the output frequency of the automatic vibrator is controlled based on the energizing time interval of the time relay to perform the unloading task.

[0107] Specifically, the energizing time interval can be determined based on the first average strain, the second average strain, and the preset time interval. The output frequency of the automatic vibrator is controlled by the energizing time interval of the time relay to perform the unloading task.

[0108] For example, the dump truck includes an ECU (Electronic Control Unit) and a solenoid valve. Multiple strain sensors and lifting hydraulic cylinder displacement sensors can be connected to the corresponding control modules in the ECU to determine the energizing time interval of the time relay. Then, by adjusting the energizing time of the solenoid valve through the energizing time interval of the time relay, the output frequency of the automatic controller is changed to perform the unloading task.

[0109] In the above embodiments, by determining the energizing time interval of the time relay, the output frequency of the automatic vibrator is controlled to perform the unloading task, thereby optimizing the usage frequency of the automatic vibrator and the time relay and improving their service life.

[0110] refer to Figure 4 The diagram shows a control circuit structure, including a strain sensor 401, a lifting hydraulic cylinder displacement sensor 402, an electronic controller unit 403, a display 404, a time relay 405, a manual switch 406, a solenoid valve 407, a flow limiter 408, and an automatic vibrator 409.

[0111] Strain sensor 401 is used to detect the strain of the dump truck bed floor.

[0112] The lifting hydraulic cylinder displacement sensor 402 is used to detect the displacement information of the lifting hydraulic cylinder.

[0113] The electronic controller unit 403 is used to calculate the energizing time interval of the time relay based on the strain and displacement information;

[0114] Display 404 is used to display the values ​​of the strain sensor.

[0115] Time relay 405 is used to control the output frequency of the automatic vibrator via a solenoid valve;

[0116] Manual switch 406 allows the driver to de-energize the solenoid valve according to actual needs;

[0117] Solenoid valve 407 is used to control the output frequency of the automatic vibrator;

[0118] The current limiter 408 is used to control the maximum current flowing through the entire circuit to protect the solenoid valve;

[0119] Automatic vibrator 409 is used to generate power to perform unloading tasks.

[0120] In one embodiment, calculating the energizing time interval of the time relay based on the first average strain, the second average strain, and the preset time interval includes:

[0121] Based on the first average strain, the second average strain, and the preset time interval, the energizing time interval of the time relay is increased through a preset frequency conversion control algorithm.

[0122] The preset frequency conversion control algorithm can be:

[0123] Where T is the energizing time interval of the time relay; T min For the preset time interval, Δ avg Let Δ be the first average dependent variable. avg(des) This is the second average dependent variable.

[0124] In the above embodiments, by using a preset frequency conversion control algorithm, the energizing time interval of the time relay is increased, thereby gradually reducing the output frequency of the automatic vibrator. While improving unloading efficiency, the operating frequency of the solenoid valve and the automatic vibrator is optimized, thereby increasing their service life.

[0125] refer to Figure 5 A flowchart of a control strategy is shown, including the following steps:

[0126] Step 501: Control the extension of the lifting hydraulic cylinder.

[0127] Specifically, when the dump truck is preparing to unload materials, the extension of the lifting hydraulic cylinder is controlled by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is detected in real time by the lifting hydraulic cylinder displacement sensor.

[0128] Step 502: When the lifting hydraulic cylinder has reached the end of its stroke, activate multiple strain sensors.

[0129] Specifically, the displacement information of the lifting hydraulic cylinder determines whether it has reached the end of its stroke, or when the position information of the automatic vibrator is perpendicular to the floor of the carriage, the lifting hydraulic cylinder reaches the end of its stroke; when the lifting hydraulic cylinder has reached the end of its stroke, multiple strain sensors are activated.

[0130] Step 503: When the average value of the strain measured by multiple strain sensors is not less than the preset sensor error, the energizing time interval of the time relay is controlled by a preset frequency conversion control algorithm.

[0131] Specifically, the power-on time interval of the time relay is gradually increased by a preset frequency conversion control algorithm in order to reduce the output frequency of the automatic vibrator.

[0132] Step 504: The time relay controls the output frequency of the automatic vibrator through the solenoid valve, so as to control the automatic vibrator to perform the unloading task.

[0133] In this embodiment, the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator are used to determine whether the lifting hydraulic cylinder has reached the end of its stroke. If the lifting hydraulic cylinder has reached the end of its stroke, multiple strain sensors are activated to obtain the strain of the truck bed measured by the multiple strain sensors. Based on the strain of the truck bed, the automatic vibrator is controlled to perform the unloading task. By controlling the automatic vibrator to perform the unloading task based on the strain measured by the multiple strain sensors deployed on the truck bed when the lifting hydraulic cylinder has reached the end of its stroke, the unloading efficiency is improved while ensuring personnel safety.

[0134] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0135] Based on the same inventive concept, this application also provides a dump truck unloading device for implementing the dump truck unloading method described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more dump truck unloading device embodiments provided below can be found in the limitations of the dump truck unloading method above, and will not be repeated here.

[0136] In one embodiment, such as Figure 6 As shown, a dump truck unloading device is provided. The dump truck includes a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors, and a truck body. The linkage mechanism includes a linkage and an automatic vibrator. The multiple strain sensors are deployed on the floor of the truck body. The device includes: a displacement information acquisition module 601, a stroke endpoint judgment module 602, a strain acquisition module 603, and a task execution module 604, wherein:

[0137] The displacement information acquisition module 601 is used to control the extension of the lifting hydraulic cylinder through the parking power take-off controller when the dump truck is preparing to unload materials, and to acquire the displacement information of the lifting hydraulic cylinder.

[0138] The stroke end point determination module 602 is used to determine whether the lifting hydraulic cylinder has reached the stroke end point based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator.

[0139] The strain acquisition module 603 is used to control the activation of the plurality of strain sensors and acquire the strain of the vehicle floor plate measured by the plurality of strain sensors when the lifting hydraulic cylinder reaches the end of the stroke.

[0140] The task execution module 604 is used to control the automatic vibrator to perform the unloading task according to the strain of the carriage floor.

[0141] In some embodiments, the dependent variable includes a first dependent variable measured in real time, and the task execution module 604 includes...

[0142] The first strain calculation submodule is used to calculate the first average strain based on the first strain measured by the plurality of strain sensors;

[0143] The first judgment submodule is used to determine whether the first average strain is not less than the preset sensor error;

[0144] The task execution submodule is used to control the automatic vibrator to perform the unloading task if the first average strain is not less than the preset sensor error.

[0145] In some embodiments, the strain variable includes an initial strain variable measured when the lifting hydraulic cylinder reaches the end of its stroke; the task execution submodule includes:

[0146] The second strain calculation unit is used to calculate the second average strain based on the initial strain measured by the plurality of strain sensors, provided that the first average strain is not less than the preset sensor error.

[0147] The task execution unit, in conjunction with the user, controls the automatic vibrator to perform the unloading task based on the first average strain and the second average strain.

[0148] In some embodiments, the dump truck includes a time relay, and the task execution unit includes...

[0149] A time interval acquisition subunit is used to acquire a preset time interval, wherein the preset time interval is the minimum time interval set for the time relay;

[0150] The task execution subunit is used to control the automatic vibrator to perform the unloading task based on the first average strain, the second average strain, and the preset time interval.

[0151] In some embodiments, the task execution subunit includes:

[0152] The time interval calculation subunit is used to calculate the energizing time interval of the time relay based on the first average strain, the second average strain, and the preset time interval;

[0153] The unloading task execution subunit is used to control the output frequency of the automatic vibrator according to the energizing time interval of the time relay, so as to execute the unloading task.

[0154] In some embodiments, the time interval calculation subunit includes:

[0155] The time interval increasing subunit is used to increase the energizing time interval of the time relay according to the first average strain, the second average strain and the preset time interval, through a preset frequency conversion control algorithm.

[0156] Each module in the aforementioned dump truck unloading device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each module.

[0157] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 7 As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a dump truck unloading method.

[0158] Those skilled in the art will understand that Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0159] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0160] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0161] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0162] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0163] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0164] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0165] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0166] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0167] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0168] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0169] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0170] When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired.

[0171] Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke;

[0172] When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained.

[0173] The automatic vibrator is controlled to perform the unloading task based on the strain of the carriage floor.

[0174] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data shall comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0175] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0176] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0177] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for unloading goods from a dump truck, characterized in that, Applied to dump trucks, the dump trucks include a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors and a truck body, and the linkage mechanism includes a linkage and an automatic vibrator; The plurality of strain sensors are deployed on the floor of the vehicle body, and the method includes: When the dump truck is preparing to unload materials, the lifting hydraulic cylinder is extended by the parking power take-off controller, and the displacement information of the lifting hydraulic cylinder is acquired. Based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator, determine whether the lifting hydraulic cylinder has reached the end of its stroke; When the lifting hydraulic cylinder reaches the end of its stroke, the multiple strain sensors are activated, and the strain of the vehicle floor measured by the multiple strain sensors is obtained. The strain includes a first strain measured in real time; based on the strain of the carriage floor, the automatic vibrator is controlled to perform the unloading task, including: Calculate the first average strain based on the first strain measured by the plurality of strain sensors; Determine whether the first average strain is not less than the preset sensor error; The strain includes the initial strain measured when the lifting hydraulic cylinder reaches the end of its stroke; if the first average strain is not less than the preset sensor error, then the automatic vibrator is controlled to perform the unloading task, including: If the first average strain is not less than the preset sensor error, then the second average strain is calculated based on the initial strain measured by the plurality of strain sensors. The automatic vibrator is controlled to perform the unloading task based on the first average strain and the second average strain.

2. The method according to claim 1, characterized in that, The dump truck includes a time relay; controlling the automatic vibrator to perform the unloading task based on the first average strain and the second average strain includes: Obtain a preset time interval, which is the minimum time interval set for the time relay; The automatic vibrator is controlled to perform the unloading task based on the first average strain, the second average strain, and the preset time interval.

3. The method according to claim 2, characterized in that, The step of controlling the automatic vibrator to perform the unloading task based on the first average strain, the second average strain, and a preset time interval includes: The energizing time interval of the time relay is calculated based on the first average strain, the second average strain, and the preset time interval; The output frequency of the automatic vibrator is controlled according to the energizing time interval of the time relay to perform the unloading task.

4. The method according to claim 3, characterized in that, The step of calculating the energizing time interval of the time relay based on the first average strain, the second average strain, and the preset time interval includes: Based on the first average strain, the second average strain, and the preset time interval, the energizing time interval of the time relay is increased through a preset frequency conversion control algorithm.

5. A dump truck unloading device, characterized in that, Applied to a dump truck, the dump truck includes a parking power take-off controller, a lifting hydraulic cylinder, a linkage mechanism, multiple strain sensors, and a truck body, the linkage mechanism including a linkage and an automatic vibrator; the multiple strain sensors are deployed on the floor of the truck body, and the device is made using the method of any one of claims 1-4, the device comprising: The displacement information acquisition module is used to control the extension of the lifting hydraulic cylinder through the parking power take-off controller and acquire the displacement information of the lifting hydraulic cylinder when the dump truck is preparing to unload materials. The stroke end point determination module is used to determine whether the lifting hydraulic cylinder has reached the stroke end point based on the displacement information of the lifting hydraulic cylinder and / or the position information of the automatic vibrator. The strain acquisition module is used to control the activation of the plurality of strain sensors and acquire the strain of the vehicle floor plate measured by the plurality of strain sensors when the lifting hydraulic cylinder reaches the end of the stroke. The task execution module is used to control the automatic vibrator to perform the unloading task based on the strain of the carriage floor.

6. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the dump truck unloading method according to any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the dump truck unloading method according to any one of claims 1 to 4.

8. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the dump truck unloading method according to any one of claims 1 to 4.

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