Automobile underground material receiving groove material level monitoring system and control method thereof

Abstract

The invention discloses an automobile underground receiving trough material level monitoring system and a control method thereof, the automobile underground receiving trough material level monitoring system comprises an underground receiving trough, an electronic belt scale, a dump truck, a truck scale, a camera, a display screen, a three-color lamp and an electric control system, the electronic belt scale is arranged below a blanking port of the underground receiving trough; the dump truck is used for feeding materials to the position above the underground material receiving groove. The truck scale is arranged below the unloading position of the dump truck; the camera is arranged above the unloading position of the dump truck; the display screen and the three-color lamp are arranged above one side of a cab at the unloading position of the dump truck; the system has the beneficial effects that the material level of the underground material receiving groove of the automobile is automatically monitored instead of manual work through automatic and visual identification technical means, the material level state of materials in the material groove can be continuously and completely reflected, production scheduling and automatic control over feeding and discharging of the material groove are facilitated, production continuity is guaranteed, and production benefits are increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material receiving tank level monitoring, in particular to an automobile underground material receiving tank level monitoring system and a control method thereof. BACKGROUND

[0002] In industrial production, a material tank is often used to store and transfer solid materials to ensure the continuity of production. However, the accurate measurement of the material tank level is a prerequisite for production scheduling and automatic control of material loading and unloading. However, some problems have arisen in practical applications.

[0003] For enterprises that mainly rely on vehicles for raw material transportation, underground material receiving tanks are usually set up to receive materials. The material receiving tank is set underground and can directly unload materials into the material receiving tank through a self-unloading truck. Finally, the materials are transported to the process production system through the belt conveyor below the material receiving tank.

[0004] The instruments commonly used to measure the level of ordinary material tanks include radar level meters, ultrasonic level meters, laser level meters, weight-type level meters installed on the lower part of the material tank. However, the space above the underground material receiving tank must be completely used for unloading materials, and a grating is usually installed on the top of the material tank. Therefore, it is difficult to install a level meter, and even if it is installed, the data reliability is poor. The use of a weight-type level meter requires a metal bin, which is difficult to use in an underground material receiving tank.

[0005] Therefore, for an automobile underground material receiving tank, it is usually difficult to achieve real-time monitoring of the material tank level, and only manual visual judgment can be used, which seriously affects the production scheduling and automatic control of material loading and unloading, and directly reduces the production efficiency.

[0006] The prior art discloses a concentrator bin vehicle ore unloading indicating device with a public number CN201420741863.X, which uses a traditional level meter for detection. However, this technical solution does not combine vehicle unloading state recognition with level calculation logic, cannot adapt to scenarios where the space above the underground material receiving tank is limited and traditional level meters cannot be stably installed, cannot achieve dynamic and accurate accounting of the level through multiple devices, and is more difficult to real-time feedback the level state to the unloading vehicle driver to guide the loading operation, resulting in insufficient applicability in the level monitoring scenario of the automobile underground material receiving tank and still unable to solve the problems of low monitoring efficiency and control lag caused by manual visual monitoring. SUMMARY

[0007] In order to overcome the problems of poor adaptability of traditional level monitoring methods to underground material receiving tanks, reliance on manual visual inspection leading to discontinuous monitoring, low data reliability, and inability to achieve coordinated scheduling and automatic control of loading and unloading, the present application provides an automobile underground material receiving tank level monitoring system and a control method thereof.

[0008] The technical solution adopted by the present invention to achieve the above objectives is as follows: it includes an underground receiving trough, an electronic belt scale, a dump truck, a truck scale, a camera, a display screen, a three-color light, and an electronic control system. The electronic belt scale is located below the discharge port of the underground receiving trough; the dump truck is used to load materials onto the underground receiving trough; the truck scale is located below the unloading position of the dump truck; the camera is located above the unloading position of the dump truck; the display screen and the three-color light are located above the cab side of the unloading position of the dump truck; the electronic belt scale, truck scale, camera, display screen, and three-color light are all electrically connected to the electronic control system via control cables.

[0009] Preferably, the electronic control system monitors the cumulative amount of material discharged from the underground receiving trough in real time using an electronic belt scale.

[0010] Preferably, the electronic control system monitors the amount of material discharged by the dump truck in real time via a truck scale.

[0011] Preferably, the electronic control system adopts machine vision technology to determine the working status of the dump truck based on the image information of the dump truck being fed by the camera.

[0012] Preferably, the electronic control system displays the material level and quantity in the underground receiving trough in real time via a display screen.

[0013] Preferably, the electronic control system uses a three-color light to provide real-time warnings of the material level in the underground receiving trough.

[0014] Preferably, the driver of the dump truck starts or stops loading the material into the underground receiving trough according to the prompts on the display screen and the three-color lights, as well as the production scheduling requirements.

[0015] Preferably, the tri-color light has three colors: yellow, red, and green. When the output material level is high, the yellow light is on; when the material level is low, the red light is on; and when the material level is normal, the green light is on.

[0016] The control method for the underground material receiving trough level monitoring system for automobiles includes the following steps: S1. System startup; S2. Calculate the cumulative change of the electronic belt scale W1 = W11 - W12, where W11 is the current value of the cumulative amount of the electronic belt scale and W12 is the historical value of the cumulative amount of the electronic belt scale. S3. Update the historical cumulative value of the electronic belt scale W12=W11; S4. Use machine vision technology to identify whether the dump truck is in the unloading state. If the result is yes, continue to execute S5. If the result is no, jump to S6. S5. Calculate the change in truck scale weight W2 = W22 - W21, then jump to S7, where W21 is the current value of truck scale weight and W22 is the historical value of truck scale weight. S6, the change in weight on the truck scale W2 = 0; S7. Update the historical value of the truck scale weight W22=W21; S8. Calculate the material volume of the underground receiving trough W = W0 - W1 + W2, where W0 is the historical value of the material volume of the underground receiving trough; S9. Update the historical value of material quantity in the underground receiving trough W0=W; S10. Calculate the material level in the underground receiving trough L = W × 100% / trough design capacity; S11. Based on the set high and low material level limits, determine the material level status of the underground receiving trough. If the material level value is higher than the high material level limit, it is a high material level status. If the material level value is lower than the low material level limit, it is a low material level status. The rest are normal material level statuses. S12. The display screen shows the material quantity and level of the underground receiving trough. The three-color indicator lights show that the yellow light is on when the material level is high, the red light is on when the material level is low, and the green light is on when the material level is normal.

[0017] The beneficial effect of this invention is that by using automated and visual recognition technology, the material level in the underground receiving trough of the vehicle can be automatically monitored instead of manually. This can continuously and completely reflect the material level status in the trough, which is conducive to production scheduling and automatic control of material loading and unloading, ensuring production continuity and increasing production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the underground receiving tank material level monitoring system for automobiles according to the present invention; Figure 2 This is a flowchart of the control method for the underground material receiving trough monitoring system for automobiles according to the present invention.

[0019] In the picture: 1. Underground receiving trough; 2. Electronic belt scale; 3. Dump truck; 4. Truck scale; 5. Camera; 6. Display screen; 7. Tricolor light. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. 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.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Example 1: As Figure 1 As shown, this embodiment provides a material level monitoring system for an underground receiving trough for automobiles, including an underground receiving trough 1 and an electronic belt scale 2 below the discharge port of the underground receiving trough 1. The underground receiving trough 1 is fed by a dump truck 3; A weighbridge 4 is installed below the unloading position of the dump truck 3, and a camera 5 is installed above the unloading position; Above the unloading position of the dump truck 3, on the side of the cab, there is a display screen 6 and a tri-color light 7; The electronic belt scale 2, truck scale 4, camera 5, display screen 6, and tri-color light 7 are electrically connected to the electronic control system via control cables; The electrical control system monitors the cumulative material discharge from the underground receiving trough 1 in real time via the electronic belt scale 2. The electronic control system monitors the amount of material discharged from the dump truck 3 in real time through the truck scale 4; The electronic control system uses machine vision technology to determine the working status of the dump truck 3 by using the feeding image information of the dump truck 3 collected by the camera 5. The electrical control system displays the material quantity and level in the underground receiving trough 1 in real time via the display screen 6. The electrical control system uses a tri-color light 7 to provide real-time warnings of the material level status in the underground receiving trough 1. The driver of the dump truck 3 can monitor the amount and level of material in the underground receiving trough 1 in real time through the display screen 6 and the tri-color light 7, and can start or stop feeding material into the underground receiving trough 1 according to the production scheduling requirements.

[0024] Example 2:Figure 2 As shown, this embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the control method of the underground receiving trough material level monitoring system for automobiles includes the following steps: S1. System startup; S2. Calculate the cumulative change of electronic belt scale 2, W1 = W11 - W12, where W11 is the current value of the cumulative amount of electronic belt scale 2, and W12 is the historical value of the cumulative amount of electronic belt scale 2. S3. Update the historical cumulative value of electronic belt scale 2, W12 = W11; S4. Use machine vision technology to identify whether the dump truck 3 is in the unloading state. If the result is yes, continue to execute S5. If the result is no, jump to S6. S5. Calculate the weight change of truck scale 4 W2=W22-W21, and jump to S7, where W21 is the current weight of truck scale 4 and W22 is the historical weight of truck scale 4. S6, Weight change on truck scale 4 W2=0; S7. Update the historical weight value of truck scale 4: W22=W21; S8. Calculate the material quantity W of underground receiving tank 1 = W0 - W1 + W2, where W0 is the historical value of the material quantity of underground receiving tank 1; S9. Update the historical value of material quantity in underground receiving trough 1, W0 = W; S10. Calculate the material level L of the underground receiving trough 1: L = W × 100% / design capacity of the trough; S11. Based on the set high and low material level limits, determine the material level status of the underground receiving trough 1. If the material level value is higher than the high material level limit, it is a high material level status. If the material level value is lower than the low material level limit, it is a low material level status. The rest are normal material level statuses. S12, Display screen 6 displays the material quantity and level value of underground receiving trough 1, and tri-color light 7 outputs the following: yellow light for high material level, red light for low material level, and green light for normal material level.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A material level monitoring system for an underground receiving trough for automobiles, characterized in that: The system includes an underground receiving trough (1), an electronic belt scale (2), a dump truck (3), a truck scale (4), a camera (5), a display screen (6), a tri-color light (7), and an electronic control system. The electronic belt scale (2) is located below the discharge port of the underground receiving trough (1). The dump truck (3) is used to load materials onto the underground receiving trough (1). The truck scale (4) is located below the unloading position of the dump truck (3). The camera (5) is located above the unloading position of the dump truck (3). The display screen (6) and the tri-color light (7) are located above the cab side of the unloading position of the dump truck (3). The electronic belt scale (2), the truck scale (4), the camera (5), the display screen (6), and the tri-color light (7) are all electrically connected to the electronic control system via control cables.

2. The vehicle underground receiving trough material level monitoring system according to claim 1, characterized in that: The electrical control system monitors the cumulative amount of material discharged from the underground receiving trough (1) in real time through an electronic belt scale (2).

3. The vehicle underground receiving trough material level monitoring system according to claim 1, characterized in that: The electronic control system monitors the amount of material discharged from the dump truck (3) in real time through the truck scale (4).

4. The vehicle underground receiving trough material level monitoring system according to claim 1, characterized in that: The electronic control system uses machine vision technology to determine the working status of the dump truck (3) based on the feeding image information of the dump truck (3) collected by the camera (5).

5. The material level monitoring system for underground receiving troughs for automobiles according to claim 1, characterized in that: The electrical control system displays the material quantity and level in the underground receiving tank (1) in real time via the display screen (6).

6. The vehicle underground receiving trough material level monitoring system according to claim 1, characterized in that: The electrical control system uses a three-color light (7) to provide real-time warnings of the material level in the underground receiving trough (1).

7. The vehicle underground receiving trough material level monitoring system according to claim 1, characterized in that: The driver of the dump truck (3) shall carry out or stop the loading operation of the material into the underground receiving tank (1) according to the prompts of the display screen (6) and the three-color light (7) and the production scheduling requirements.

8. The vehicle underground receiving trough material level monitoring system according to claim 1, characterized in that: The tri-color lamp (7) has three colors: yellow, red, and green. When the output material level is high, the yellow lamp is lit; when the material level is low, the red lamp is lit; and when the material level is normal, the green lamp is lit.

9. A control method for a vehicle underground receiving trough level monitoring system according to any one of claims 1 to 8, characterized in that: Includes the following steps: S1. System startup; S2. Calculate the cumulative change of the electronic belt scale (2) W1 = W11 - W12, where W11 is the current value of the cumulative amount of the electronic belt scale (2) and W12 is the historical value of the cumulative amount of the electronic belt scale (2); S3. Update the historical cumulative value of the electronic belt scale (2) W12 = W11; S4. Use machine vision technology to identify whether the dump truck (3) is in the unloading state. If the result is yes, continue to execute S5. If the result is no, jump to S6. S5. Calculate the weight change of the truck scale (4) W2 = W22 - W21, and jump to S7, where W21 is the current weight of the truck scale (4) and W22 is the historical weight of the truck scale (4). S6, the weight change of the truck scale (4) W2=0; S7. Update the record of the historical weight value of the truck scale (4) W22=W21; S8. Calculate the material quantity W of the underground receiving trough (1) = W0 - W1 + W2, where W0 is the historical value of the material quantity of the underground receiving trough (1); S9. Update the historical value of material quantity in the underground receiving trough (1) W0 = W; S10. Calculate the material level L of the underground receiving trough (1) = W × 100% / design capacity of the trough; S11. Based on the set high and low material level limits, determine the material level status of the underground receiving trough (1). If the material level value is higher than the high material level limit, it is a high material level status. If the material level value is lower than the low material level limit, it is a low material level status. The rest are normal material level statuses. S12, The display screen (6) displays the material quantity and level value of the underground receiving trough (1), and the three-color light (7) outputs the yellow light when the material level is high, the red light when the material level is low, and the green light when the material level is normal.

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