Heavy mine car carrying data management system and method

Abstract

The invention discloses a heavy mine car carrying data management system and method. The system comprises a data acquisition device, an operation device, a control device, a display device and a storage device. The data acquisition equipment comprises a suspension pressure sensor, a double-shaft inclinometer, a cargo compartment lifting in-place proximity switch, a cargo compartment falling in-place proximity switch and a front and rear wheel rotating speed sensor; the operation equipment comprises an accelerator pedal, a gear handle and a loading brake switch; the control equipment is connected with the data acquisition equipment and the operation equipment, receives signals of the data acquisition equipment and the operation equipment, and processes the received signals to obtain required carrying data; the display device and the storage device are respectively connected with the control device, the control device transmits carrying data to the display device through a bus, and the storage device carries out data display and data storage. According to the invention, comprehensive analysis and management of carrying data are realized, the service life of equipment parts is prolonged, the safety and efficiency of mine transportation are improved, and good practicability and function expansibility are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a heavy truck carrying data management system and method, belonging to the technical field of heavy trucks. BACKGROUND

[0002] In mine production, the carrying data of heavy trucks is crucial for the operation and maintenance management of the mine area, the safety of the whole vehicle driving, and the life cycle of parts.

[0003] Currently, the multifunctional integrated display combination instrument in the cab is usually used to view the basic data such as real-time load, load percentage, overload warning, etc., to help the driver monitor the load and system alarm information in real time; the weighing display screen on both sides of the walkway is usually used to display the real-time load, which is convenient for the loader or on-site management personnel to check the load of the vehicle.

[0004] The existing heavy truck weighing display interface does not have a load roll-over prompt, and the loader only refers to the loading position icon on the cargo compartment for loading, so the load roll-over cannot be directly determined, and the load distribution deviating from the threshold will affect the service life of parts, vehicle stability, and even driving safety; the carrying data information display is not comprehensive, lacking key data such as driving time, vehicle use imbalance coefficient, load percentage interval statistics, etc., which is not practical enough and affects the operation and maintenance management of the mine area; only the on-site message packaging record file is provided, and professional personnel are required to manually ID screen and analyze the historical carrying data, which does not support independent storage, quick retrieval and analysis of client carrying data. SUMMARY

[0005] The present application provides a heavy truck carrying data management system, which makes full use of existing hardware resources, has low cost, integrates loading prompt, load roll-over prompt, data statistics, client retrieval and other functions, realizes comprehensive analysis and management of carrying data, improves the service life of equipment parts, the safety and efficiency of mine transportation, and has good practicality and functional expandability.

[0006] The present application is implemented according to the following technical solutions:

[0007] In a first aspect, the present application discloses a heavy truck carrying data management system, comprising:

[0008] The data acquisition device comprises a suspension pressure sensor, a dual-axis inclinometer for detecting the angle of the vehicle relative to the horizontal plane, a cargo compartment lifting in-place proximity switch, a cargo compartment falling in-place proximity switch, and front and rear wheel speed sensors.

[0009] The operating device comprises an accelerator pedal, a gear handle, and a loading brake switch.

[0010] A control device is connected with the data acquisition device and the operation device, the control device receives signals of the data acquisition device and the operation device, and processes the received signals to obtain required carrying data;

[0011] A display device and a storage device are connected with the control device respectively, and the control device transmits the carrying data to the display device and the storage device through a bus for data display and data storage.

[0012] In some embodiments, the display device comprises a touch display and a weighing display screen; the touch display is installed in a cab to display the carrying data and the vehicle state, and integrates a display control module, a storage module, an export module and a buzzer; and the weighing display screen is installed on both sides of a deck to display real-time load and a fault prompt of a suspension pressure sensor.

[0013] In some embodiments, the touch display supports multiple identity mode login, and after mode login, the touch display enters a main interface, in which the carrying data and the vehicle state are displayed; clicking a floating button on the main interface pops up five menus of system information, function setting, personnel management, skinning and manual weighing, and clicking a menu enters a corresponding interface.

[0014] In some embodiments, the system further comprises:

[0015] A transmission device is connected with the control device, and transmits the carrying data to a remote receiving device through a wireless network; and the remote receiving device is connected with the transmission device, and is used for receiving the carrying data transmitted by the transmission device.

[0016] In a second aspect, the application discloses a heavy mine car carrying data management method, which is implemented by using the heavy mine car carrying data management system.

[0017] When the vehicle is powered on, the control device starts to calculate real-time load and load percentage;

[0018] After the engine starts, if the load percentage is less than N%, the empty load time is updated, otherwise the full load time is updated, the operation time is the sum of the empty load time and the full load time, after detecting the loading condition, the current real-time load and the load percentage are updated and recorded, after detecting that the vehicle speed is greater than zero, the loading condition is entered and the current load is locked, and then the driving time is updated, the vehicle use imbalance coefficient is updated in real time with the change of the operation time and the driving time, at the same time, it is judged whether the load percentage is less than N%, if the load percentage is less than N%, the empty load mileage is updated, otherwise the full load mileage is updated, the total mileage is the sum of the empty load mileage and the full load mileage, and further, it is judged whether the full load mileage increases by at least M meters, if the full load mileage increases by at least M meters, the loading condition is entered and the current load is unlocked, and the load change is detected in real time, if the load percentage is less than N%, the total transport times and the total transport weight are accumulated and the load distribution times are updated, if the load percentage is less than N% and the current driver ID is detected, the current driver transport times and the current driver transport weight are accumulated; the full load mileage increase degree can also be determined according to the actual situation of the mine, and the full load mileage increase value item is input in the parameter setting interface of the display device.

[0019] In some embodiments, the real-time load percentage is the ratio of the real-time load to the rated load, as the ratio increases, the progress bar rises accordingly, and the color intensifies; the progress bar color is white between 0% and 110%, yellow between 110% and 120%, and red above 120%; after the overload speed limit function is activated, the current overload speed limit value is displayed and can be set, the default current speed limit value is 5 kmph when the load percentage is between 110% and 120%, and the default current speed limit value is 0 kmph when the load percentage is greater than or equal to 120%, and the actual speed limit values of the two overload intervals are set to adapt to the needs of different mines.

[0020] In a third aspect, the present application discloses a heavy mine car carrying data management method, which is implemented by using the heavy mine car carrying data management system described above.

[0021] The load distribution deviation threshold value alarms the load side inclination on the main interface of the display device, the load side inclination alarm includes load forward inclination, load rearward inclination, load leftward inclination and load rightward inclination, and adopts the simultaneous prompting mode of the real-time alarm area, visual icons and the buzzer, so that the driver can inform the loader to adjust the load distribution state of the cargo compartment according to the load side inclination alarm prompt.

[0022] In some embodiments, the load side inclination judgment method comprises the following steps:

[0023] Step one, under no-load condition, stop and load brake is applied, record the load deviation of front and rear wheels Δm FR and the load deviation of left and right wheels Δm LR ;

[0024] Step two, detect the vehicle loading condition, real-time calculation of the current load, when the load is less than the threshold m c , load side inclination alarm shielding; when the load is greater than or equal to the threshold m c , enter the load side inclination logic judgment;

[0025] Step three, record the load quality deviation of front and rear wheels Δm ′ FR and the load quality deviation of left and right wheels Δm ′ LR , get the front and rear wheel load correction value Δm1=Δm FR +Δm ′ FR and the left and right wheel load correction value Δm2=Δm LR +Δm ′ LR ;

[0026] Step four, when the vehicle reaches full load and no longer loads, calculate the front wheel load m front , rear wheel load m rear , left wheel load m left and right wheel load m right ;

[0027] Step five, the control device judges whether the inclination condition is met; if not, the vehicle has no inclination alarm, and the state is locked, and the gear can be engaged to drive into the normal carrying condition; if it is, the load inclination alarm is adjusted, and the load distribution is adjusted to no inclination alarm, and the state is locked, and the gear can be engaged to drive into the normal carrying condition; if it is, the load inclination alarm is adjusted, and the load distribution is not adjusted by the loader, and if the gear is driven at this time, step six is entered;

[0028] Step six, if the vehicle speed is greater than zero at this time, the display device locks the load inclination alarm state; the control device makes a comprehensive judgment according to the accelerator pedal signal and the current vehicle speed, sends a frequency accelerator signal to the engine controller, controls the engine speed and vehicle speed, and enters the load inclination speed limit carrying condition.

[0029] In some embodiments, the specific way of the control device in step five to judge whether the inclination condition is met is as follows:

[0030] Under full load conditions, with no eccentric load, the front-to-rear wheel load ratio is 1:2, and the left-to-right wheel load ratio is 1:1. If the load on the front wheels exceeds 10%, it is considered a forward load tilt; if the load on the rear wheels exceeds 10%, it is considered a rear load tilt; if the load on the left wheels exceeds 10%, it is considered a left load tilt; and if the load on the right wheels exceeds 10%, it is considered a right load tilt. Specifically:

[0031] When the correction value Δm1>0, if Then the load tilts forward alarm will sound. Then the load tilt alarm will be triggered;

[0032] When the correction value Δm1≤0, if Then the load tilts forward alarm will sound. Then the load tilt alarm will be triggered;

[0033] When the correction value Δm2>0, if Then the load tilts to the left, triggering an alarm. Then the load tilts to the right alarm;

[0034] When the correction value Δm2≤0, if Then the load tilts to the left, triggering an alarm. Then the load will tilt to the right, triggering an alarm.

[0035] In some embodiments, the load deviation Δm between the unloaded front wheel and the rear wheel in step one FR The unloaded load deviation Δm between the left and right wheels is calculated by subtracting the actual sprung mass and unsprung mass of the front wheels from the rated load of the front wheels when unloaded. LR The unloaded load of the left wheel is calculated by subtracting the actual sprung mass of the left wheel from the rated load of the left wheel and then subtracting the unsprung mass of the left wheel.

[0036] The critical value m in step two c This is the minimum value of the rated load capacity of the front wheel, the rated load capacity of the rear wheel, the rated load capacity of the left wheel, and the rated load capacity of the right wheel.

[0037] In step three, the load mass deviation Δm between the fully loaded front and rear wheels ′ FR for The difference in load mass between the fully loaded left and right wheels is Δm ′ LR for Where m a For actual load capacity, m evw Let α be the weight of the mine car, α be the ratio of the actual sprung mass of the unloaded front wheel to the rated sprung mass of the unloaded front wheel, and β be the ratio of the actual sprung mass of the unloaded left wheel to the rated sprung mass of the unloaded left wheel.

[0038] In step four, the front wheel load is fully loaded (m). front The sum of the unsprung mass of the front wheel and the actual sprung mass of the fully loaded front wheel is given by the load m of the fully loaded rear wheel. rear The unsprung mass of the rear wheel is the sum of the actual sprung mass of the fully loaded rear wheel, and the load m of the fully loaded left wheel is... left The unsprung mass of the left wheel is the sum of the actual sprung mass of the fully loaded left wheel, and the load m of the fully loaded right wheel is... right It is the sum of the unsprung mass of the right wheel and the actual sprung mass of the fully loaded right wheel.

[0039] Beneficial effects of this invention:

[0040] This invention provides a heavy-duty mining truck transportation data management system that makes full use of existing hardware resources, has a low cost, and integrates functions such as loading prompts, load tilting prompts, data statistics, and client retrieval. It realizes comprehensive analysis and management of transportation data, improves the lifespan of equipment parts, the safety and efficiency of mining transportation, and has good practicality and functional scalability. Attached Figure Description

[0041] The accompanying drawings, as part of this invention, are provided to further illustrate the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation thereof. Clearly, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0042] In the attached diagram:

[0043] Figure 1 This is a diagram of the architecture of the data management system for the vehicle.

[0044] Figure 2 Display the system interface architecture diagram;

[0045] Figure 3 This is the system login interface;

[0046] Figure 4 Display the main interface of the system;

[0047] Figure 5 Here is the logic flowchart for load tilting;

[0048] Figure 6 Flowchart of the logic for calculating production data;

[0049] Figure 1The components include: 1. Suspension pressure sensor, 2. Dual-axis inclinometer, 3. Cargo box lifting proximity switch, 4. Cargo box lowering proximity switch, 5. Front and rear wheel speed sensors, 6. Accelerator pedal, 7. Gear shift lever, 8. Loading brake switch, 9. Vehicle controller, 10. Drive controller, 11. Engine controller, 12. Touch screen display, 13. Weighing display, 14. Data logger, 15. GPS controller, 16. USB drive, 17. Remote terminal, 18. PC.

[0050] Figure 4 In the center: a) Gear shift lever status, b) Loading brake status, c) Cargo box lowered status, d) Cargo box raised status, e) Load tilting forward, f) Load tilting backward, g) Load tilting left, h) Load tilting right, i) Left and right tilt angles, j) Front and rear tilt angles, k) Floating button.

[0051] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] like Figure 1 As shown, a heavy-duty mining truck transportation data management system is characterized by comprising a data acquisition device, an operating device, a control device, a display device, a storage device, a transmission device, and a receiving device. The control device receives signals from the data acquisition device and the operating device, performs logical operations on the received signals to obtain the required transportation data, and then transmits the transportation data to the display device, storage device, and transmission device via a bus. The receiving device is used to retrieve and analyze the transportation data.

[0055] The data acquisition equipment includes a suspension pressure sensor 1, a dual-axis inclinometer 2, a cargo box lifting proximity switch 3, a cargo box lowering proximity switch 4, and front and rear wheel speed sensors 5. The suspension pressure sensor 1 collects the pressure from the four suspension cylinders; the dual-axis inclinometer 2 collects the angles between the vehicle's front and rear, and left and right sides, relative to the horizontal plane; the cargo box lifting proximity switch 3 collects the cargo box lifting position signal; and the cargo box lowering proximity switch 4 collects the cargo box lowering position signal. The suspension pressure, vehicle inclinometer, and cargo box lifting and lowering position signals are sent to the vehicle controller 9 and broadcast to the bus. The front and rear wheel speed sensors 5 collect the front wheel speed and the rear wheel traction motor speed and send them to the drive controller 10 to calculate the current vehicle speed, which is then broadcast to the bus.

[0056] The operating devices include an accelerator pedal 6, a gear shift lever 7, and a loading brake switch 8. The accelerator pedal 6 sends acceleration commands to the drive controller 10; the gear shift lever 7 integrates parking, reverse, neutral, forward, release buttons, and indicator lights. Each selected gear can be reliably locked, and the indicator light shows the current gear. The lock position can only be removed by pressing the release button; the loading brake switch 8 is a rocker type and integrates an enable indicator light; the gear position signal of the gear shift lever 7 and the enable signal of the loading brake switch 8 are sent to the vehicle controller 9 and broadcast to the bus.

[0057] The control equipment includes a vehicle controller 9, a drive controller 10, and an engine controller 11. It performs logical operations on the collected signals to calculate transportation data such as load tilt warning, vehicle usage imbalance coefficient, driving time, load percentage range statistics, number of transport trips, and load volume. Based on the received data and transportation data, it controls the vehicle.

[0058] The display devices include a touch screen display 12 and a weighing display screen 13. The touch screen display 12 is installed in the driver's cab, displays the transport data and vehicle status, and integrates a display control module, a storage module, an export module, and a buzzer; the weighing display screen 13 is installed on the left and right sides of the deck, displaying the real-time load and suspension pressure sensor fault prompts.

[0059] The storage device is a data logger 14, which stores bus message data in the form of multiple files with a fixed single file size.

[0060] The transmission equipment consists of a GPS controller 15 and a GPS antenna, which transmits the transport data and related vehicle status to a remote terminal via a wireless network.

[0061] The receiving devices include a USB drive 16, a remote terminal 17, and a PC 18, which respectively export and retrieve data from the touch screen, GPS backend, and data logger.

[0062] like Figure 2 , 3As shown in Figure 4, the touch display 12 is set to driver ID, guest, and administrator login modes; the main interface includes the current time, real-time system alarm information, current vehicle speed, loading braking status (b), cargo box lifting status (d), cargo box lowering status (c), gear lever status (a), real-time load capacity, real-time load percentage and progress bar, current driver ID, current driver's transport count, current driver's total transport volume, load forward tilt visual prompt (e), load backward tilt visual prompt (f), load left tilt visual prompt (g), load right tilt visual prompt (h), real-time pressure data from the suspension pressure sensor, and the vehicle's left and right relative horizontal angles. i. The relative horizontal angle between the front and rear of the vehicle; j. The floating button; k. Clicking the floating button k will bring up a menu displaying system information, function settings, personnel management, tare, and manual weighing; system information includes shift information, weighing information, fault information, version information, and GPS information; shift information includes the current driver's loading time, ID, number of loads, and loaded weight; weighing information includes vehicle ID, driver ID, current driver's transport count, total transport count, current driver's transport weight, total transport weight, number of loads less than 100%, number of loads between 100% and 110%, and number of loads between 110% and 120%. The system includes data on the number of times the load exceeds 120%, unloaded time, fully loaded time, unloaded mileage, fully loaded mileage, total mileage, operation time, travel time, and vehicle usage imbalance coefficient. Fault information includes fault code, fault description, fault occurrence time, fault end time, corresponding vehicle speed, corresponding engine speed, and number of faults. Version information includes the touchscreen application layer program version and underlying program version. GPS information includes positioning status and device status. Function settings include backlight settings, language settings, parameter settings, and overload speed limit settings. Parameter settings include vehicle ID settings, vehicle type settings, rated load capacity settings, and transport... The system allows users to input the increase in full-load mileage, set the load capacity unit, and set the pressure sensor unit. Overload speed limit settings include options for both overload speed limit and no speed limit. Activating the overload speed limit option displays the current speed limit and allows setting a different limit. Personnel management includes user login and administrator modes. User login allows switching between currently logged-in users, while administrator mode allows adding, deleting, and modifying users' information. A tare menu is used to calibrate the system and exclude tare weight, providing a benchmark for load measurement. Manual weighing is used when the loading condition differs from the tare condition; the system can be driven to the tare condition to remeasure the load, increasing system flexibility.

[0063] like Figure 5 As shown, when the load distribution deviates from the threshold, a load tilt alarm is triggered on the main interface of the touch display 12. The load tilt alarm includes load tilting forward, load tilting backward, load tilting to the left, and load tilting to the right. The alarm is triggered simultaneously using a real-time text alarm area, a visual icon, and a buzzer. The driver can inform the loader to adjust the load distribution of the cargo box based on the load tilt alarm prompts. The method for determining load tilt includes the following steps:

[0064] A. Under no-load conditions, with no off-center load, the front-to-rear wheel load ratio is 1:1 and the left-to-right wheel load ratio is 1:1. When the loading brake is applied and the vehicle speed is zero, uneven road surfaces and changes in vehicle auxiliary material allowances can lead to uneven distribution of the no-load load. Calculate and record the load deviation Δm between the no-load front and rear wheels at this time. FR and the load deviation Δm between the unloaded left and right wheels LR ;

[0065] B. Detects vehicle loading status and calculates current load weight in real time. When the load weight is less than the critical value m... c When the load tilt alarm is disabled; when the load mass is greater than or equal to the critical value m c When this happens, the load tilt logic is entered for judgment;

[0066] C. Uneven road surfaces and other factors can also lead to uneven load distribution. Calculate and record the load mass deviation Δm between the fully loaded front and rear wheels. ′ FR and the load mass deviation Δm between the left and right wheels ′ LR The corrected values ​​for the front and rear wheel loads are obtained as Δm1 = Δm FR +Δm ′ FR and the load correction values ​​for the left and right wheels Δm2=Δm LR +Δm ′ LR ;

[0067] D. When the vehicle is fully loaded and no longer needs loading, calculate the front wheel load m at this point. front Rear wheel load m rear Left wheel load m left and right wheel load m right ;

[0068] E. Under full load conditions, with no eccentric load, the front-to-rear wheel load ratio is 1:2 and the left-to-right wheel load ratio is 1:1. If the front wheel load exceeds 10%, it is judged as forward load tilt; if the rear wheel load exceeds 10%, it is judged as rear load tilt; if the left wheel load exceeds 10%, it is judged as left load tilt; if the right wheel load exceeds 10%, it is judged as right load tilt. Specifically:

[0069] E1, when the correction value Δm1 > 0, if Then the load tilts forward alarm will sound. Then the load tilt alarm will be triggered;

[0070] E2, when the correction value Δm1 ≤ 0, if Then the load tilts forward alarm will sound. Then the load tilt alarm will be triggered;

[0071] E3, when the correction value Δm2 > 0, if Then the load tilts to the left, triggering an alarm. Then the load tilts to the right alarm;

[0072] E4. When the correction value Δm2 ≤ ​​0, if Then the load tilts to the left, triggering an alarm. Then the load tilts to the right alarm;

[0073] F. If none of the tilt alarm conditions described in E1, E2, E3, and E4 are met, the vehicle will not trigger a tilt alarm. This state will be locked, and the vehicle can be driven in gear to enter normal transport conditions. If any of the alarms described in E1, E2, E3, and E4 occurs, the touchscreen will display text, icons, and a buzzer alarm. The driver will remind the loader to adjust the load distribution based on the alarm information and repeat steps C, D, and E until no tilt alarm occurs. This state will then be locked, and the vehicle can be driven in gear to enter normal transport conditions. If any of the alarms described in E1, E2, E3, and E4 occurs and the loader has not adjusted the load distribution, and the vehicle is driven in gear at this time, then proceed to step G.

[0074] G. If the vehicle speed is greater than zero at this time, the touch display 12 will lock the load tilt alarm state; the drive controller will make a comprehensive judgment based on the accelerator pedal signal and the current vehicle speed, and send a frequency throttle signal to the engine controller to control the engine speed and vehicle speed, and enter the load tilt speed limit operation condition, with the vehicle speed not exceeding 5 km / h.

[0075] In step A above, the load deviation Δm between the unloaded front and rear wheels FR The unloaded load deviation Δm between the left and right wheels is calculated by subtracting the actual sprung mass and unsprung mass of the front wheels from the rated load of the front wheels when unloaded. LR The unloaded load is the rated load of the left wheel minus the actual sprung mass of the left wheel, and then the unsprung mass of the left wheel.

[0076] The critical value m in step B c It represents the minimum value of the rated load capacity of the front wheel, the rated load capacity of the rear wheel, the rated load capacity of the left wheel, and the rated load capacity of the right wheel.

[0077] In step C, the load mass deviation Δm between the fully loaded front and rear wheels ′ FR for The difference in load mass between the fully loaded left and right wheels is Δm ′ LR for Where m a For actual load capacity, m evw Let α be the weight of the mine car, α be the ratio of the actual sprung mass of the unloaded front wheel to the rated sprung mass of the unloaded front wheel, and β be the ratio of the actual sprung mass of the unloaded left wheel to the rated sprung mass of the unloaded left wheel.

[0078] In step D, the fully loaded front wheel load m front The sum of the unsprung mass of the front wheel and the actual sprung mass of the fully loaded front wheel is given by the load m of the fully loaded rear wheel. rear The unsprung mass of the rear wheel is the sum of the actual sprung mass of the fully loaded rear wheel, and the load m of the fully loaded left wheel is... left The unsprung mass of the left wheel is the sum of the actual sprung mass of the fully loaded left wheel, and the load m of the fully loaded right wheel is... right It is the sum of the unsprung mass of the right wheel and the actual sprung mass of the fully loaded right wheel.

[0079] like Figure 6 As shown, when the vehicle is powered on, the vehicle controller 9 begins calculating the real-time load weight and load percentage. After the engine starts, if the load percentage is less than 30%, the no-load time is updated; otherwise, the full-load time is updated. The operation time is the sum of the no-load time and the full-load time. After detecting the loading condition, the current real-time load weight and load percentage are updated and recorded. If the vehicle speed is greater than zero, the vehicle enters the transport condition and locks the current load weight, then the travel time is updated. The vehicle usage imbalance coefficient is updated in real time with the changes in operation time and travel time. At the same time, it is determined whether the load percentage is less than 30%. If the load percentage is less than 30%, the no-load mileage is updated; otherwise, the full-load mileage is updated. The total mileage is the sum of the no-load mileage and the full-load mileage. The degree of increase in full-load mileage is further determined. If the full-load mileage increases... If the mileage increases by less than 200 meters, and a signal indicating the cargo box has been lifted into position is detected, the vehicle has not yet reached the unloading area for unloading. The current load weight is unlocked, and the number of transport trips and the transport weight for the vehicle and the current driver are not accumulated, nor is the load distribution count updated. If the mileage increases by at least 200 meters, and a signal indicating the cargo box has been lifted into position is detected, the vehicle enters the unloading mode and the current load weight is unlocked. The load weight change is monitored in real time. If the load percentage is less than 30%, the total number of transport trips and the total transport weight are accumulated, and the load distribution count is updated. If the load percentage is less than 30% and the current driver ID is detected, the number of transport trips and the transport weight for the current driver are accumulated. The degree of increase in mileage can also be determined according to the actual situation in the mining area. The increase value for mileage can be entered in the parameter setting interface of the touch display 12.

[0080] Furthermore, the touch display 12 stores production data from the main interface, shift information interface, and weighing information interface, as well as fault data from the fault interface in real time. Production data and fault data are stored in different files, each with its own set file size and maximum number of files. The production data file size is set according to the number of transport cycles included, with one data record per transport cycle; the fault data file size is set according to the number of faults recorded. An overwrite mechanism is included; when the number of stored files reaches the set maximum value, the old file overflows to generate a new file.

[0081] Furthermore, only in administrator mode, the production data export icon is activated on the weighing information interface, and the fault data export icon is activated on the fault information interface. Triggering the icons will pop up a list of export files. The export list is displayed in the format of "filename + start time ~ end time". After inserting the USB drive into the USB interface of the touch screen, the filename is activated, and the data can be exported to the USB drive.

[0082] Furthermore, the system's real-time alarm information includes load tilting forward, load tilting backward, load tilting left, load tilting right, display communication failure, vehicle controller communication failure, data recorder communication failure, left front suspension pressure sensor failure, right front suspension pressure sensor failure, left rear suspension pressure sensor failure, right rear suspension pressure sensor failure, and dual-axis tilt meter failure. When an alarm occurs, a buzzer sounds simultaneously, and when multiple faults occur at the same time, the alarms are displayed in a loop.

[0083] Furthermore, the real-time load percentage is the ratio of the real-time load to the rated load. As the ratio increases, the progress bar rises accordingly, and the color becomes darker. The progress bar color is white when the load percentage is between 0% and 110%, yellow when it is between 110% and 120%, and red when it is above 120%.

[0084] Furthermore, once the overload speed limit function is activated, the current overload speed limit is displayed and can be set. When the load percentage is 110% ≤ load percentage < 120%, the default current speed limit is 5 km / h, and when the load percentage is ≥ 120%, the default current speed limit is 0 km / h. Two overload range actual speed limits can be set to adapt to the needs of different mining areas.

[0085] Furthermore, when the suspension pressure sensor 1 is functioning correctly, the weighing display screen 13 displays the real-time load weight and changes the display color according to the load percentage range: white for load percentages between 0% and 110%, yellow for load percentages between 110% and 120%, and red for load percentages above 120%, reminding the loading operator to control the load amount. When the suspension pressure sensor 1 malfunctions, the calculated load weight is invalid, and the weighing display screen 13 displays the suspension pressure sensor fault code. Different display codes correspond to different fault combinations of the four suspension pressure sensors.

[0086] Furthermore, the remote terminal 17 is configured with an administrator user and password, and in administrator mode, it can remotely view, store, and download current and historical transport data and related vehicle status.

[0087] Furthermore, the data exported from the touch display 12 to the USB drive 16 and the data transmitted from the GPS controller 15 to the remote terminal 17 are both parsed data, which do not require professional analysis, are intuitive and practical, and can be further analyzed to obtain derived data such as monthly average effective load, the proportion of actual effective load in different percentage ranges, and tire TMPH.

[0088] In summary, this invention provides a heavy-duty mining truck transportation data management system that makes full use of existing hardware resources, has low cost, integrates functions such as loading prompts, load tilting prompts, data statistics, and client retrieval, realizes comprehensive analysis and management of transportation data, improves the lifespan of equipment parts, the safety and efficiency of mining transportation, and has good practicality and functional scalability.

[0089] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0090] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A heavy-duty mining truck transportation data management system, characterized in that, include: Data acquisition equipment includes a suspension pressure sensor, a dual-axis inclinometer for detecting the vehicle's angle relative to the horizontal plane, a cargo box lifting position proximity switch, a cargo box lowering position proximity switch, and front and rear wheel speed sensors; Operating equipment, including accelerator pedal, gear shift lever and load brake switch; A control device is connected to the data acquisition device and the operating device. The control device receives signals from the data acquisition device and the operating device, and processes the received signals to obtain the required transport data. The display device and the storage device are respectively connected to the control device. The control device transmits the data to the display device and the storage device via the bus for data display and storage.

2. The heavy-duty mining truck transportation data management system according to claim 1, characterized in that: The display device includes a touch screen and a weighing display screen; the touch screen is installed in the driver's cab, displays the transport data and vehicle status, and integrates a display control module, a storage module, an export module, and a buzzer; the weighing display screen is installed on the left and right sides of the deck, displaying the real-time load and suspension pressure sensor fault prompts.

3. The heavy-duty mining truck transportation data management system according to claim 2, characterized in that: The touch display allows for multiple identity login modes. After logging in, the user enters the main interface, which displays transportation data and vehicle status. Clicking the floating button on the main interface will bring up five menus: system information, function settings, personnel management, tare menu, and manual weighing. Clicking a menu will take the user to the corresponding interface.

4. The heavy-duty mining truck transportation data management system according to claim 1, characterized in that, Also includes: A transmission device, connected to the control device, remotely transmits carrier data via a wireless network. A receiving device, connected to the transmission device, is used to receive the carrier data transmitted by the transmission device.

5. A method for managing heavy-duty mining car transportation data, implemented using the heavy-duty mining car transportation data management system according to any one of claims 1 to 4, characterized in that: Once the vehicle is powered on, the control equipment begins calculating the real-time load capacity and load percentage. After the engine starts, if the load percentage is less than N%, the no-load time is updated; otherwise, the full-load time is updated. The operation time is the sum of the no-load time and the full-load time. After detecting the loading condition, the current real-time load weight and load percentage are updated and recorded. If the vehicle speed is greater than zero, the vehicle enters the transport condition and locks the current load weight, then the travel time is updated. The vehicle usage imbalance coefficient is updated in real time with the changes in operation time and travel time. At the same time, it is determined whether the load percentage is less than N%. If the load percentage is less than N%, the no-load mileage is updated; otherwise, the full-load mileage is updated. The total mileage is the sum of the no-load mileage and the full-load mileage. The degree of increase in full-load mileage is further judged. If the increase in full-load mileage is less than M meters, then a detection is made. If the cargo box is lifted into position signal, the vehicle has not yet reached the unloading area for unloading. The current load weight is unlocked, but the number of transport trips and the transport weight of the vehicle and the current driver are not accumulated, and the load distribution count is not updated. If the full load mileage increases by at least M meters, and the cargo box is detected as lifted into position, the unloading mode is entered, the current load weight is unlocked, and the load weight change is monitored in real time. If the load percentage is less than N%, the total number of transport trips and the total transport weight are accumulated, and the load distribution count is updated. If the load percentage is less than N% and the current driver ID is detected, the current driver's transport trips and the current driver's transport weight are accumulated. The degree of increase in full load mileage can also be determined according to the actual situation of the mining area, and the increase value of transport full load mileage can be entered in the parameter setting interface of the display device.

6. The method for managing heavy-duty mining car transport data according to claim 5, characterized in that: The real-time load percentage is the ratio of the real-time load to the rated load. As the ratio increases, the progress bar rises and the color darkens. The progress bar is white when the load percentage is between 0% and 110%, yellow when it is between 110% and 120%, and red when it is above 120%. Once the overload speed limit function is activated, the current overload speed limit is displayed and can be set. When the load percentage is 110% ≤ load percentage < 120%, the default current speed limit is 5 km / h. When the load percentage is ≥ 120%, the default current speed limit is 0 km / h. Two overload range actual speed limits can be set to adapt to the needs of different mining areas.

7. A method for managing heavy-duty mining car transportation data, implemented using the heavy-duty mining car transportation data management system according to any one of claims 1 to 4, characterized in that: Load distribution deviation from the threshold triggers a load tilt alarm on the main interface of the display device. The load tilt alarm includes load tilting forward, load tilting backward, load tilting to the left, and load tilting to the right. The alarm is triggered simultaneously using a real-time text alarm area, visual icons, and a buzzer. The driver can use the load tilt alarm prompts to inform the loader to adjust the load distribution of the cargo box.

8. The method for managing heavy-duty mining car transport data according to claim 7, characterized in that: The method for determining load tilt includes the following steps: Step 1: Under no-load conditions, stop the vehicle and apply the load brake, then record the load deviation Δm between the unloaded front and rear wheels. FR and the load deviation Δm between the unloaded left and right wheels LR ; Step 2: Detect the vehicle's loading condition and calculate the current load capacity in real time. When the load capacity is less than the critical value m... c When the load tilt alarm is disabled; when the load mass is greater than or equal to the critical value m c When this happens, the load tilt logic is entered for judgment; Step 3: Record the load mass deviation Δm′ between the fully loaded front and rear wheels. FR and the load mass deviation Δm′ between the left and right wheels LR The corrected values ​​for the front and rear wheel loads are obtained as Δm1 = Δm FR +Δm′ FR and the load correction values ​​for the left and right wheels Δm2=Δm LR +Δm′ LR ; Step 4: When the vehicle is fully loaded and no longer needs loading, calculate the front wheel load m at this point. front Rear wheel load m rear Left wheel load m left and right wheel load m right ; Step 5: The control equipment determines whether the tilt condition is met. If not, the vehicle will not trigger a tilt alarm. The vehicle will be locked in this state and can be driven in gear to enter normal transport conditions. If the condition is met, a load tilt alarm will be triggered. The load distribution will be adjusted until no tilt alarm occurs. The vehicle will be locked in this state and can be driven in gear to enter normal transport conditions. If the condition is met, a load tilt alarm will be triggered. If the loader has not adjusted the load distribution, and the vehicle is driven in gear at this time, proceed to Step 6. Step 6: If the vehicle speed is greater than zero at this time, the display device will lock the load tilt alarm state; the control device will make a comprehensive judgment based on the accelerator pedal signal and the current vehicle speed, and send a frequency throttle signal to the engine controller to control the engine speed and vehicle speed, and enter the load tilt speed-limited transportation condition.

9. A method for managing heavy-duty mining car transport data according to claim 8, characterized in that, The specific method by which the control equipment in step five determines whether the roll condition is met is as follows: Under full load conditions, with no eccentric load, the front-to-rear wheel load ratio is 1:2, and the left-to-right wheel load ratio is 1:

1. If the load on the front wheels exceeds 10%, it is considered a forward load tilt; if the load on the rear wheels exceeds 10%, it is considered a rear load tilt; if the load on the left wheels exceeds 10%, it is considered a left load tilt; and if the load on the right wheels exceeds 10%, it is considered a right load tilt. Specifically: When the correction value Δm1>0, if Then the load tilts forward alarm will sound. Then the load tilting alarm will sound; When the correction value Δm1≤0, if Then the load tilts forward alarm will sound. Then the load tilting alarm will sound; When the correction value Δm2>0, if Then the load tilts to the left, triggering an alarm. Then the load tilts to the right alarm; When the correction value Δm2≤0, if Then the load tilts to the left, triggering an alarm. Then the load will tilt to the right, triggering an alarm.

10. A method for managing heavy-duty mining car transport data according to claim 8, characterized in that: In step one, the load deviation Δm between the unloaded front and rear wheels FR The unloaded load deviation Δm between the left and right wheels is calculated by subtracting the actual sprung mass and unsprung mass of the front wheels from the rated load of the front wheels when unloaded. LR The unloaded load of the left wheel is calculated by subtracting the actual sprung mass of the left wheel from the rated load of the left wheel and then subtracting the unsprung mass of the left wheel. The critical value m in step two c This is the minimum value of the rated load capacity of the front wheel, the rated load capacity of the rear wheel, the rated load capacity of the left wheel, and the rated load capacity of the right wheel. In step three, the load mass deviation Δm′ between the fully loaded front and rear wheels FR for The difference in load mass between the fully loaded left and right wheels is Δm′ LR for Where m a For actual load capacity, m evw Let α be the weight of the mine car, α be the ratio of the actual sprung mass of the unloaded front wheel to the rated sprung mass of the unloaded front wheel, and β be the ratio of the actual sprung mass of the unloaded left wheel to the rated sprung mass of the unloaded left wheel. In step four, the front wheel load is fully loaded (m). front The sum of the unsprung mass of the front wheel and the actual sprung mass of the fully loaded front wheel is given by the load m of the fully loaded rear wheel. rear The unsprung mass of the rear wheel is the sum of the actual sprung mass of the fully loaded rear wheel, and the load m of the fully loaded left wheel is... left The unsprung mass of the left wheel is the sum of the actual sprung mass of the fully loaded left wheel, and the load m of the fully loaded right wheel is... right It is the sum of the unsprung mass of the right wheel and the actual sprung mass of the fully loaded right wheel.

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