Digital twin unmanned sand-gravel material distributing and feeding system
The digital twin unmanned material feeding system for sand and gravel, monitored by a digital twin control center and sensors, has solved the problem of uncontrollable material feeding in traditional asphalt mixing plants, and has achieved automated and precise scheduling and unmanned operation, thereby improving production efficiency and finished product quality.
Patent Information
- Application Number
- CN202511325613.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-01-02
AI Technical Summary
Traditional asphalt mixing plants rely on manual operation for material feeding, resulting in uncontrollable feeding volume, mixing of different silos, large fluctuations in the quality of finished asphalt, low production efficiency, high labor costs, lack of effective supervision methods, and difficulty in accurately understanding the inventory and proportion of basic materials.
The sand and gravel digital twin unmanned material feeding system includes a physical hardware execution layer, a sensing and data transmission layer, and a digital twin control center. It uses weighing devices, material level sensors, and laser particle size sensors for real-time monitoring, and uses the digital twin control center to build a model to achieve automated and precise scheduling and unmanned operation.
It achieves precision and stability in asphalt mixture proportioning, reduces labor costs, improves production efficiency, and ensures the stability and safety of finished product quality.
Smart Images
Figure CN121247490A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the field of feeding systems, and particularly relates to a sand and stone material digital twin unmanned material distribution and feeding system. BACKGROUND
[0002] The production quality of asphalt mixture directly determines the quality and service life of highway pavement, and the core of the asphalt mixture lies in the accurate proportioning of basic materials, sand and stone aggregate is the main component of the asphalt mixture, and has a high application proportion, and the traditional asphalt mixing station feeding mode is to manually operate a conveyor belt by an operator, a loader runs material distribution, and material is fed into a mixing bin, the feeding amount depends on the work experience of the operator, the specific feeding amount has great uncontrollability, and the basic material usage is inaccurate, different bins are mixed, and the like, which causes uncontrollable conditions of large quality fluctuation of finished asphalt, and manual operation has low production efficiency, high labor cost, and great labor intensity, especially in the case of frequent replacement of proportioning schemes, which further affects the production efficiency and increases the production cost, the common manual operation equipment lacks effective supervision means in the feeding and distribution process, the actual proportioning and inventory of each basic material cannot be accurately understood, and deviation of the proportioning cannot be compensated in time. SUMMARY
[0003] The application aims to provide a sand and stone material digital twin unmanned material distribution and feeding system to solve the technical problem that the traditional asphalt mixing station feeding mode is to manually operate a conveyor belt by an operator, a loader runs material distribution, and material is fed into a mixing bin, the feeding amount depends on the work experience of the operator, the specific feeding amount has great uncontrollability, and the basic material usage is inaccurate, different bins are mixed, and the like, which causes uncontrollable conditions of large quality fluctuation of finished asphalt, and manual operation has low production efficiency, high labor cost, and great labor intensity, especially in the case of frequent replacement of proportioning schemes, which further affects the production efficiency and increases the production cost, the common manual operation equipment lacks effective supervision means in the feeding and distribution process, the actual proportioning and inventory of each basic material cannot be accurately understood, and deviation of the proportioning cannot be compensated in time.
[0004] To achieve the above-mentioned purpose, the specific technical scheme of the sand and stone material digital twin unmanned material distribution and feeding system is as follows:
[0005] The sand and gravel digital twin unmanned material distribution and feeding system comprises a physical hardware execution layer, a sensing and data transmission layer, and a digital twin control center.
[0006] Further, the sand and gravel conveying system comprises two fixedly arranged main material conveying belts capable of being independently operated, a first guide conveying belt connected to the downstream end of the main material conveying belt, a first-stage material feeding conveying belt connected to the end of the first guide conveying belt away from the main material conveying belt, and a plurality of second-stage material feeding conveying belts connected to the side of the first-stage material feeding conveying belt.
[0007] Further, the two first guide conveying belts are connected through a second guide conveying belt, and a material bin arranged on one side of one of the main material conveying belts is connected to the first guide conveying belt arranged at the downstream end of the other main material conveying belt through a third guide conveying belt.
[0008] Further, the material level sensor is an ultrasonic or radar material level meter, and the first and second weighing devices are electronic belt scale weighing sensors.
[0009] Further, the electric material guide belt is a movable track type guide transportation device.
[0010] Further, the sensing and data transmission layer further comprises a plurality of scanning systems fixedly arranged on the upper part of the working area, and the detected information of the scanning systems is transmitted to the data module for real-time comparison and detection of the actual operation state of the equipment and the data of the digital twin cloud control center.
[0011] Further, the sensing and data transmission layer further comprises a laser particle size sensor arranged above the sand and gravel conveying system, and the detected information of the laser particle size sensor is transmitted to the data module.
[0012] Further, the physical hardware execution layer, the sensing and data transmission layer, and the digital twin control center communicate through one or more of 5G, 5G-R, or Wi-Fi wireless communication technology for data network transmission.
[0013] Further, the digital twin control center is configured to build and run a digital twin model corresponding to the physical hardware execution layer in real time, receive and process data information from the sensing and data transmission layer, update the digital twin model state in real time based on the obtained information, generate control instructions based on the updated model state and a preset material distribution strategy, and send the control instructions to the physical hardware execution layer to schedule the sand and gravel flow.
[0014] The sand and gravel digital twin unmanned material distribution and feeding system has the following advantages: the digital twin model built by the digital twin control center accurately schedules the physical hardware execution layer, intelligently controls the feeding rhythm and accurate feeding amount of the two main material conveying belts according to the preset asphalt formula, and accurately guides the base materials of asphalt into the designated bin through the electric guide belt. This process realizes automation and formula operation from the entire process of sand and gravel receiving, conveying, and guiding into the bin, eliminates errors caused by human operation of equipment, and increases the stability of the quality of finished asphalt mixture. The system integrates unmanned main material conveying belts, first guide conveying belts, first-level feeding conveying belts, second-level feeding conveying belts, and electric guide belts, realizes full unmanned operation of the physical hardware execution layer from sand and gravel unloading, operation, conveying, and distribution, replaces the high-cost and low-efficiency manual operation mode, and increases the safety of the working environment. The scanning system, laser particle size sensor, first weighing device, second weighing device, and level sensor in the sensing and data transmission layer monitor the state information of the asphalt base materials in the conveying and distribution process in real time, transmit the information to the digital twin control center, record and analyze the obtained real-time data through the digital twin control center, compensate for the deviation of the material distribution through conveying and feeding in time, and determine the accurate proportion of the asphalt mixture base materials. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The figure is a schematic diagram of the physical hardware execution layer structure of the present application.
[0016] Figure 2 The figure is a schematic diagram of the sensing and data transmission layer and the digital twin control center control structure of the present application.
[0017] The markings in the diagram are as follows: 1. Hopper; 2. First weighing device; 3. Second weighing device; 4. Material level sensor; 5. Digital twin cloud control center; 6. Data module; 7. Control module; 8. Interaction module; 9. Main material conveyor belt; 10. First guide conveyor belt; 11. Primary feeding conveyor belt; 12. Secondary feeding conveyor belt; 13. Electric guide belt; 14. Second guide conveyor belt; 15. Third guide conveyor belt; 16. Scanning system; 17. Laser particle size sensor. Detailed Implementation
[0018] To better understand the purpose, structure, and function of this invention, the following detailed description of the digital twin unmanned material feeding system for sand and gravel is provided in conjunction with the accompanying drawings.
[0019] like Figures 1-2 As shown, the present invention provides a digital twin unmanned material feeding and conveying system for sand and gravel, comprising a physical hardware execution layer, a sensing and data transmission layer, and a digital twin control center. The physical hardware execution layer includes a sand and gravel conveying system and multiple silos 1. The sand and gravel conveying system is used to transport sand and gravel from the unloading point to the designated silo 1. The sensing and data transmission layer includes a first weighing device 2 installed on the sand and gravel conveying system, a second weighing device 3 installed on the lower side of the silo 1, and a material level sensor 4 installed inside the silo 1 to collect the weight and material level information of the sand and gravel. The digital twin control center includes a digital twin cloud control center 5, a data module 6 for receiving and processing data information from the sensing and data transmission layer, a control module 7 for controlling the physical hardware execution layer and sending commands, and an interactive module 8 for displaying all information and receiving manual input commands.
[0020] Combination Figures 1-2As shown, before running at the physical hardware execution layer, the corresponding digital twin model is constructed by the digital twin control center according to the drawings and layout of the actual equipment, which includes all the silos 1, the aggregate conveying system, and the data measured by the sensing and data transmission layer. When the staff issues the batching instruction through the interactive module 8, the instruction is issued to the physical hardware execution layer through the digital twin cloud control center 5. The aggregate conveying system conveys the aggregate unloaded from the unloading vehicle from the starting end to the silo 1. In this process, the first weighing device 2 of the sensing and data transmission layer detects the real-time conveying aggregate weight, the second weighing device 3 detects the aggregate weight in the silo 1, and the level sensor 4 continuously monitors the aggregate height in the silo 1. All the data collected by the sensing and data transmission layer is transmitted to the digital twin cloud control center 5 through the data module 6, and the digital twin model is displayed through the interactive module 8. At the same time, the running state of the physical hardware execution layer is synchronously displayed, and the physical hardware execution layer is controlled according to the preset batching and feeding strategy through the control module 7, such as adjusting the feeding rate, replacing the feeding silo 1, etc., until the preset silo 1 batching work is completed. Compared with the manual operation of the conveyor and the loader, the production efficiency and the accuracy of the asphalt mixture batching are improved, and the labor cost is reduced.
[0021] As shown, Figure 1 The aggregate conveying system includes two fixedly arranged main conveying belts 9 that can independently run. The upstream end of the main conveying belt 9 is connected to the unloading vehicle. The first guide conveying belt 10 is connected to the downstream end of the main conveying belt 9. The first-stage feeding conveying belt 11 is connected to one end of the first guide conveying belt 10 away from the main conveying belt 9. A plurality of second-stage feeding conveying belts 12 are connected to one side of the first-stage feeding conveying belt 11. The first-stage feeding conveying belt 11 is slidably provided with an electric guide belt 13 through a track and is connected to the second-stage feeding conveying belt 12, which is used to guide the aggregate conveying direction. A plurality of silos 1 are arranged on both sides of the second-stage feeding conveying belt 12. The second-stage feeding conveying belt 12 is slidably provided with an electric guide belt 13 through a track, which is used to convey the aggregate to the silos 1 on both sides. Through the two main conveying belts 9, the source separation and parallel conveying of two different aggregates can be realized. The aggregate on one side is conveyed to the first guide conveying belt 10 through the main conveying belt 9, and then to the first-stage feeding conveying belt 11 through the first guide conveying belt 10. The aggregate is guided to the predetermined second-stage feeding conveying belt 12 through the electric guide belt 13 slidably arranged on the first-stage feeding conveying belt 11. At this time, the aggregate is accurately guided to the opposite silo 1 through the electric guide belt 13 arranged on the second-stage feeding conveying belt 12, forming a stable aggregate conveying route and completing the precise batching. The core process is the movement and scheduling of the electric guide belt 13 slidably arranged on the first-stage feeding conveying belt 11 and the second-stage feeding conveying belt 12, so as to realize the precise process of aggregate conveying.
[0022] The two first guide conveying belts 10 are connected through the second guide conveying belt 14; one material bin 1 arranged on one side of the main material conveying belt 9 is connected with the first guide conveying belt 10 arranged at the downstream end of the other main material conveying belt 9 through the third guide conveying belt 15 arranged in a connecting mode, and the connection between the two first guide conveying belts 10 and the connection between the two main material conveying belts 9 are realized through the second guide conveying belt 14; when it is needed to replace the type of sand and stone materials in the material bin 1, the sand and stone materials on the other main material conveying belt 9 can be conveyed across the line, so that the reliability of the sand and stone material conveying system and the flexibility of the sand and stone material conveying are increased; the two main material conveying belts 9 are combined into a material resource combination system through the second guide conveying belt 14 and the third guide conveying belt 15, and the sand and stone materials can be mutually adjusted and conveyed.
[0023] The material level sensor 4 is an ultrasonic or radar material level meter; the first weighing device 2 and the second weighing device 3 are electronic belt scale weighing sensors.
[0024] The electric guide belt 13 is a movable track guide conveying device.
[0025] In combination Figure 2 As shown, the sensing and data transmission layer further includes a plurality of scanning systems 16 fixedly arranged at the upper part of the working area; the information detected by the scanning systems 16 is transmitted to the data module 6, and is used for real-time comparison and detection of the actual running state of the equipment and the data of the digital twin cloud control center 5; the running state of the physical hardware execution layer in the working area, such as the positions of the plurality of electric guide belts 13, the running state of the main material conveying belt, the running direction of the first guide conveying belt 10, etc., is monitored in real time; after the data module 6 receives the information of the scanning systems 16, the expected effect in the digital twin model is automatically compared, the key indicators and the simulation difference are calculated, the virtual and real synchronization is truly realized, the reliability of the system is improved, and the accuracy of the data of the sand and stone material distribution and feeding is ensured.
[0026] In combination Figure 2 As shown, the sensing and data transmission layer further includes a laser particle size sensor 17 arranged above the sand and stone material conveying system; the information detected by the laser particle size sensor 17 is transmitted to the data module 6; the flow samples of the sand and stone materials conveyed in the running of the sand and stone material conveying system are collected through the laser particle size sensor 17; the sand and stone particle accumulation distribution is deduced through the light characteristics; the material properties, the sand and stone particle size, etc. are detected through the data module 6 receiving and transmitting to the digital twin cloud control center 5, so that the unloaded and fed real objects are prevented from affecting the quality of the asphalt finished product.
[0027] The physical hardware execution layer, the sensing and data transmission layer, and the digital twin control center transmit data network through one or more of 5G, 5G-R, or Wi-Fi wireless communication technology.
[0028] The digital twin control center is configured to build and run a digital twin model corresponding to the physical hardware execution layer in real time, receive and process data information from the sensing and data transmission layer, update the digital twin model state in real time according to the obtained information, generate a control instruction according to the updated model state and a preset material distribution strategy, and send the control instruction to the physical hardware execution layer to schedule the sand and gravel flow direction.
[0029] The control mode of the present application is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art, and the present application is mainly used for protecting mechanical settings or system settings, so the control mode and circuit connection of the present application will not be explained in detail
[0030] It can be understood that the present application is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.
Claims
1. A sand and gravel digital twin unmanned material distribution and loading system, characterized in that, The system comprises a physical hardware execution layer, a sensing and data transmission layer, and a digital twin control center; the physical hardware execution layer comprises a sand and gravel conveying system and a plurality of stockyards (1); the sand and gravel conveying system is used to convey sand and gravel from a discharge point to a designated stockyard (1); the sensing and data transmission layer comprises a first weighing device (2) arranged on the sand and gravel conveying system, a second weighing device (3) arranged on the lower side of the stockyard (1), and a stock level sensor (4) arranged in the stockyard (1) to collect sand and gravel weight and stock level information; the digital twin control center comprises a digital twin cloud control center (5), a data module (6) for receiving and processing data information of the sensing and data transmission layer, a control module (7) for controlling the physical hardware execution layer and sending instructions, and an interactive module (8) for displaying all information and receiving manual input instructions.
2. The sand digital twin unmanned material distribution and charging system according to claim 1, wherein, The sand and gravel conveying system comprises two fixedly arranged main material conveying belts (9) that can be independently operated, a discharge vehicle connected to the upstream end of the main material conveying belt (9); a first guide conveying belt (10) connected to the downstream end of the main material conveying belt (9); a first-stage material conveying belt (11) connected to one end of the first guide conveying belt (10) away from the main material conveying belt (9); a plurality of second-stage material conveying belts (12) connected to one side of the first-stage material conveying belt (11); the first-stage material conveying belt (11) is slidably arranged with an electric material guide belt (13) through a track to connect with the second-stage material conveying belt (12) for guiding the direction of stone conveying; a plurality of stockyards (1) are arranged on both sides of the second-stage material conveying belt (12); the second-stage material conveying belt (12) is slidably arranged with an electric material guide belt (13) through a track for conveying sand and gravel into the stockyards (1) on both sides.
3. The sand digital twin unmanned material distribution and charging system according to claim 2, wherein, The two first guide conveying belts (10) are connected through a second guide conveying belt (14); one stockyard (1) arranged on one side of one main material conveying belt (9) is connected to the first guide conveying belt (10) arranged at the downstream end of the other main material conveying belt (9) through a third guide conveying belt (15) arranged in connection.
4. The sand aggregate digital twin unmanned material distribution and feeding system according to claim 1, wherein, The stock level sensor (4) is an ultrasonic or radar level meter; the first weighing device (2) and the second weighing device (3) are electronic belt scale weighing sensors.
5. The sand aggregate digital twin unmanned material distribution and feeding system according to claim 2, wherein, The electric material guide belt (13) is a movable track type guide transportation device.
6. The sand aggregate digital twin unmanned material distribution and charging system according to claim 1, wherein, The sensing and data transmission layer further comprises a plurality of scanning systems (16) fixedly arranged on the upper part of the working area; the detected information of the scanning system (16) is transmitted to the data module (6) for real-time comparison and detection of the actual running state of the equipment and the data of the digital twin cloud control center (5).
7. The sand aggregate digital twin unmanned material distribution and feeding system according to claim 1, wherein, The sensing and data transmission layer further comprises a laser particle size sensor (17) arranged above the sand and gravel conveying system; the detected information of the laser particle size sensor (17) is transmitted to the data module (6).
8. The sand aggregate digital twin unmanned material distribution and charging system according to claim 1, wherein, The physical hardware execution layer, the sensing and data transmission layer, and the digital twin control center are connected through one or more of 5G, 5G-R, or Wi-Fi wireless communication technologies for data network transmission.
9. The sand aggregate digital twin unmanned material distribution and charging system according to claim 1, wherein, The digital twin control center is configured to build and run a digital twin model corresponding to the physical hardware execution layer in real time, receive and process data information from the sensing and data transmission layer, update the state of the digital twin model in real time according to the obtained information, generate a control instruction according to the updated model state and a preset material distribution strategy, and send the control instruction to the physical hardware execution layer to schedule the flow of sand and gravel.