A logistics express unloading method

Abstract

The application relates to a logistics express unloading method and relates to the technical field of logistics express unloading, and comprises the following steps: step one, parking a truck to a parking position according to requirements, opening a compartment door and fixing the compartment door, and starting an unloading device; step two, performing start-up security check after starting; step three, after the start-up security check is completed, turning on a warning light and a warning bell in a safe state, the warning light and the warning bell cyclically flashing and ringing in the whole unloading process, and waiting for N seconds after a safety prompt, and then entering an unloading process, and simultaneously performing real-time security check and real-time mechanical fault detection in the unloading process; and step four, turning off the device after the unloading is completed; the unloading method can realize automatic calibration and docking with the compartment truck, uses a machine to replace manual work, realizes automation, improves unloading efficiency, avoids violent delivery, and has important market value and practical significance.

Description

Technical Field

[0001] This invention relates to the field of logistics and express delivery unloading technology, and specifically to a logistics and express delivery unloading method. Background Technology

[0002] Currently, the logistics and express delivery business is developing rapidly. However, there are three major challenges when unloading express deliveries at their destination:

[0003] First, the sizes, shapes, and weights of express delivery goods in the same batch vary, making it difficult to achieve automated and streamlined unloading operations.

[0004] Secondly, express delivery is generally transported in box trucks. Currently, the packages piled up in the truck can only be handled manually, unloaded from the truck and transferred to the conveyor belt. This is costly and inefficient, and there is often a problem of violent throwing.

[0005] Third, the working environment is harsh. Due to the small space inside the carriages, the conditions are cold in winter and hot in summer, the labor intensity is high, and staff turnover is severe, which has a great impact on express delivery and transportation operations. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a logistics and express delivery unloading method that can solve the technical problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A logistics and express delivery unloading method includes the following steps:

[0009] Step 1: Park the truck in the designated parking space, open the cargo door and secure it, then start the unloading device;

[0010] Step 2: Perform a power-on security check after powering on;

[0011] Step 3: After the power-on safety inspection is completed, turn on the warning light and warning bell in a safe state. The warning light and warning bell will flash and ring in a cycle throughout the unloading process. After waiting for N seconds for the safety prompt, the unloading process will begin. Real-time safety inspection and real-time mechanical fault detection will be carried out simultaneously during the unloading process.

[0012] Step 4: Turn off the machine after unloading is complete.

[0013] Preferably, in step two, the power-on security check is to detect whether there are living organisms in the work area and the warning range; when a danger signal is detected, the security alarm and voice prompt are activated, and the security check is performed again after an interval of N seconds. If the danger signal still exists, the security alarm and voice prompt continue, and the security check is repeated until the danger signal is eliminated and the system enters a safe state.

[0014] Preferably, step three also includes position correction, which includes left and right position adjustment, height position adjustment and angle alignment adjustment.

[0015] Preferably, in step three, the unloading process proceeds as follows:

[0016] S1. Express delivery unloading plan: The express delivery unloading plan includes AI recognition calculation and unloading model library;

[0017] S2, Locate the package: The pickup unit locates the package to be unloaded;

[0018] S3. Confirm the unloading method: The unloading method includes suction cup unloading, clamp unloading, and lever unloading;

[0019] S4. Adjusting the position of the unloading platform vehicle: The adjustment of the position of the unloading platform vehicle includes bridging mode and non-bridging mode;

[0020] S5. Adjusting the telescopic arm: The identification and positioning module on the telescopic arm can identify and locate the express delivery being unloaded in real time. In conjunction with the express delivery unloading plan, the telescopic arm can be electronically adjusted in real time to achieve precise height, left and right position and telescopic length.

[0021] S6. Adjust the height of the conveyor platform: The front shovel identification and positioning module of the conveyor platform identifies and locates the express delivery being unloaded in real time. In conjunction with the express delivery unloading plan, the precise height of the conveyor platform is adjusted in real time by electronic control. The distance between the unloading platform vehicle and the express delivery is also adjusted in real time by electronic control, thereby realizing the real-time electronic control adjustment of the distance between the conveyor platform and the express delivery.

[0022] S7. Adjust the working position of the picking unit: The adjustment of the working position of the picking unit includes adjusting the angle of the picking unit and adjusting the tilt angle of the crossbeam;

[0023] S8. Unloading of the picking unit: The unloading of the picking unit includes suction cup adsorption unloading, clamp gripping unloading and telescopic lever unloading;

[0024] S9. Telescopic arm retraction: The lower identification and positioning module on the telescopic arm identifies and confirms the height and position of the express delivery in real time, and automatically adjusts the height and left and right position of the telescopic arm or adjusts the height of the conveyor platform.

[0025] S10. Unloading packages to the conveyor platform: The telescopic arm retracts to unload packages to the conveyor platform.

[0026] S11. Transporting packages to the sorting conveyor belt: The conveyor belt of the transport platform transports packages to the package sorting conveyor belt;

[0027] S12. Unloading completed;

[0028] S13. The unloading platform vehicle returns to the initial position of the position correction platform;

[0029] S14: Power off.

[0030] Preferably, in S12, after unloading is completed, steps S13 and S14 are executed; if unloading is not completed, the process returns to the express unloading plan for a new round of unloading.

[0031] Preferably, in step three, during the real-time security check, when a security signal is detected, the system waits for N seconds before checking again, and the security check is repeated cyclically; when a danger signal is detected, a security alarm and voice prompt are activated, and an alarm count is performed, with the alarm count formula being a+1.

[0032] When a < A, wait N seconds and then return to the real-time security check process to perform cyclical checks under safe conditions;

[0033] When a≥A, activate the safety alarm and voice prompts, repeat them continuously, suspend unloading, and proceed with manual handling.

[0034] Preferably, in step three, during the real-time mechanical fault detection process, when the detection display device is normal, wait N seconds and then detect again, repeating the process; when the detection display device malfunctions, activate the fault alarm and voice prompts for repeated broadcasts, suspend unloading, and perform manual handling.

[0035] Preferably, the manual handling adopts the method of forced shutdown or manual operation. After forced shutdown, the unloading process ends. After restarting, a new round of inspection is carried out from the startup safety inspection. Manual operation refers to the staff driving away living organisms in the work area and warning range or the staff repairing mechanical faults. After the safety hazards are eliminated and the fault is cleared, the unloading continues, while the looping safety alarms and voice prompts are turned off.

[0036] Preferably, both the letter N and the letter A are variable values.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] 1. The unloading method of the present invention can unload the express delivery piled up in the carriage in sequence from top to bottom and from outside to inside.

[0039] 2. The unloading method of the present invention can automatically unload express packages of different sizes, shapes and weights.

[0040] 3. The unloading method of the present invention can achieve automatic calibration and docking with box trucks, completely replace manual labor with machinery, realize automation while improving unloading efficiency, avoid the problem of violent delivery, and has important market value and practical significance. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0042] Figure 1 This is a plan view of a logistics and express delivery unloading device proposed in this invention;

[0043] Figure 2 This is a three-dimensional axonometric view of a logistics and express delivery unloading device proposed in this invention;

[0044] Figure 3 This is a three-dimensional isometric view of the horizontal frame pitching mechanism of a logistics and express delivery unloading device proposed in this invention;

[0045] Figure 4 This is a three-dimensional axonometric view of the horizontal lifting mechanism of a logistics and express delivery unloading device proposed in this invention;

[0046] Figure 5 This is a three-dimensional isometric view of the gripper of a logistics and express delivery unloading device proposed in this invention;

[0047] Figure 6 This is a side plan view of the conveyor platform of a logistics and express delivery unloading device proposed in this invention;

[0048] Figure 7 This is a flowchart of the unloading process of a logistics and express delivery unloading device proposed in this invention;

[0049] Figure 8 This is an unloading and express delivery process diagram in the unloading process diagram of a logistics and express delivery unloading device proposed in this invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] A-Unloading platform vehicle:

[0052] 1-Gantry, 2-Horizontal Frame, 21-Horizontal Frame Pitch Mechanism, 211-Horizontal Frame Pitch Shaft, 212-Horizontal Frame Pitch Drive Gear, 213-Horizontal Frame Pitch Drive Motor, 22-Horizontal Frame Lifting Mechanism, 221-Horizontal Frame Lifting Drive Motor, 222-Gearbox, 223-Horizontal Frame Lifting Drive Worm Gear, 224-Horizontal Frame Lifting Drive Gear, 225-Horizontal Frame Lifting Clamping Stabilizing Wheel, 226-Horizontal Frame Lifting Clamping Stabilizing Gear, 227-Lifting Rack, 3-Gripper, 31-Telescopic Arm, 32-Telescopic Arm Drive Mechanism, 33-Picking Unit, 331-Picking Unit Front Identification and Positioning Module, 332-Picking Unit Lower Identification and Positioning Module 333-Picking unit rotary motor; 334-Telescopic lifting arm; 335-Horizontal telescopic lever; 336-Suction cup; 337-Clamping clamp; 338-Clamping clamp drive gear; 34-Telescopic arm forward and backward movement drive mechanism; 35-Telescopic arm rack; 36-Telescopic arm lateral movement drive mechanism; 37-Horizontal rack guide rail; 4-Conveyor platform; 41-Conveyor platform bracket; 42-Conveyor belt; 43-Conveyor roller; 44-Bearing; 45-Lifting shaft; 46-Lifting chain; 47-Conveyor platform lifting drive mechanism; 48-Front shovel; 49-Front shovel identification and positioning module; 5-Platform vehicle central control box; 6-Gantry identification and positioning module;

[0053] B-Position Correction Platform:

[0054] 7-Bridging platform, 71-Cable tray base, 72-Rail cable tray, 73-Rail cable tray identification and positioning module, 74-Cable tray base identification and positioning module, 8-Height and angle correction platform, 81-Height and angle correction platform body, 82-Height and angle correction platform lifting mechanism, 83-Height and angle correction platform rotating mechanism, 9-Left and right position correction platform, 91-Left and right position correction platform body, 92-Left and right position correction platform drive mechanism, 93-Left and right position correction platform wheel, 94-Left and right position correction platform track, 95-Left and right position identification and positioning module, 10-Correction platform central control box, 11-Wheel, 12-Wheel drive mechanism, 13-Hanging frame, 131-Hanging frame upper identification and positioning module, 132-Hanging frame lower identification and positioning module, 14-Groove. Detailed Implementation

[0055] The invention will now be described in detail with reference to the accompanying drawings, by way of example. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments.

[0056] like Figure 1-2As shown, an unloading device for a courier transport vehicle includes an unloading platform vehicle A and a position correction platform B. The unloading platform vehicle A is positioned above the position correction platform B. A set of sensors is installed on the front, left, and right sides of the position correction platform B. These sensors are used to detect whether a living organism enters the working area. On one hand, the unloading platform vehicle A in this invention can identify the location of the courier, intelligently moving / clamping / adsorbing and dragging the courier to the conveyor belt 42 to complete unloading. On the other hand, the position correction platform B in this invention, through longitudinal, lateral, front-back, and angular corrections, automatically calibrates and aligns the unloading platform vehicle A with the van, enabling the unloading platform vehicle A to enter and exit the van for unloading. Specifically,

[0057] The unloading platform vehicle A includes a gantry 1, a crossbeam 2, a grabber 3, a conveyor platform 4, a platform vehicle central control box 5, and a gantry identification and positioning module 6. The gantry identification and positioning module 6 is installed on the crossbeam of the gantry 1. The gantry identification and positioning module 6 integrates one or more of the following: a vision module, a lighting unit, and a distance sensor. The crossbeam 2 is located between two columns of the gantry 1. The grabber 3 is installed on the crossbeam 2. The conveyor platform 4 is located below the crossbeam 2. The platform vehicle central control box 5 is fixed on the unloading platform vehicle A. Preferably, the crossbeam or column of the gantry 1 is also equipped with a camera and / or lights, which can be used to identify the seams of express delivery stacking.

[0058] The position correction platform B includes a bridging platform 7, a height and angle correction platform 8, and a left and right position correction platform 9 arranged sequentially from top to bottom. The left and right position correction platform 9 is fixed with a correction platform control box 10.

[0059] The unloading platform vehicle A is equipped with wheels 11 at its bottom, and a wheel drive mechanism 12 is connected to the wheels 11. The wheel drive mechanism 12 is fixed on the unloading platform vehicle A, and the unloading platform vehicle A is slidably connected to the top of the bridging platform 7 through the wheels 11.

[0060] like Figure 2-4 As shown, the cross frame 2 is provided with a cross frame tilting mechanism 21 and a cross frame lifting mechanism 22. The cross frame tilting mechanism 21 is located at both ends of the cross frame 2, and the cross frame lifting mechanism 22 is located outside the cross frame tilting mechanism 21 and connected to the column of the gantry 1.

[0061] The cross-frame pitch mechanism 21 includes a cross-frame pitch shaft 211, a cross-frame pitch drive gear 212, and a cross-frame pitch drive motor 213. The cross-frame pitch shaft 211 is connected to the cross-frame 2, and one end of the cross-frame pitch shaft 211 is connected to the cross-frame pitch drive gear 212. The cross-frame pitch drive gear 212 is driven to rotate by the cross-frame pitch drive motor 213. Specifically, the cross-frame pitch drive motor 213 drives the cross-frame pitch drive gear 212 to rotate, thereby causing the cross-frame pitch shaft 211 to pitch. Thus, when encountering the flat bottom part, the cross-frame 2 can tilt, thereby causing the telescopic arm 31 to droop at a certain angle.

[0062] The crossbeam lifting mechanism 22 includes a crossbeam lifting drive motor 221 and a gearbox 222. The gearbox 222 is mounted on the column of the gantry 1. The gearbox 222 contains a crossbeam lifting drive worm 223, a crossbeam lifting drive gear 224, a crossbeam lifting clamping stabilizing wheel 225, and a crossbeam lifting clamping stabilizing gear 226. The output shaft of the crossbeam lifting drive motor 221 is connected to the crossbeam lifting drive worm 223. The crossbeam lifting drive worm 223 meshes with one side of the crossbeam lifting drive gear 224, and the other side of the crossbeam lifting drive gear 224 meshes with the crossbeam lifting clamping stabilizing gear 226. The column of the gantry 1 is provided with a lifting rack 227 that cooperates with the crossbeam lifting drive gear 224 and the crossbeam lifting clamping stabilizing gear 226. The crossbeam lifting clamping stabilizing wheel 225 is located on the side of the gantry 1 column away from the crossbeam lifting drive gear 224. Specifically, the cross frame lifting drive motor 221 drives the cross frame lifting drive worm 223 to rotate, which in turn drives the cross frame lifting drive gear 224, the cross frame lifting clamping stabilizing wheel 225 and the cross frame lifting clamping stabilizing gear 226 to rotate, thereby causing the cross frame 2 to lift along the lifting rack 227.

[0063] The end of the cross frame pitch shaft 211 away from the cross frame pitch drive gear 212 is connected to the gearbox 222.

[0064] The cross-frame pitch drive motor 213 is located inside the gearbox 222.

[0065] like Figure 5As shown, the gripper 3 includes a telescopic arm 31, a telescopic arm drive mechanism 32, and a picking unit 33. The telescopic arm drive mechanism 32 is located at the rear end of the telescopic arm 31, and the picking unit 33 is located at the front end of the telescopic arm 31. The picking unit 33 is equipped with a front identification and positioning module 331 and a lower identification and positioning module 332. The front identification and positioning module 331 is installed on the front end face of the picking unit 33, and the lower identification and positioning module 332 is installed on the lower end face of the picking unit 33. Preferably, the identification and positioning module on the picking unit 33 integrates a distance sensor, a camera, and a lighting device to achieve the most accurate identification and positioning. The rear end of the picking unit 33 is connected to the front end of the telescopic arm 31 via the picking unit rotary motor 333. The bottom of the picking unit 33 is connected to a telescopic picking arm 334. The lower ends of the telescopic picking arm 334 are fitted with horizontal telescopic levers 335. Specifically, the horizontal telescopic levers 335 can increase the width of the telescopic picking arm 334 after they are extended, and can retract into the telescopic picking arm 334 after picking is completed.

[0066] During operation, the front identification and positioning module 331 of the pickup unit identifies the package and locates its distance and boundary. The telescopic arm drive mechanism 32 drives the telescopic arm 31 to extend and bring the pickup unit 33 to the top of the package. Then, the lower identification and positioning module 332 of the pickup unit identifies and locates the far edge of the package facing upwards. The telescopic arm 31 drives the pickup unit 33 to the far edge of the package facing upwards. The telescopic parrying arm 334 extends and blocks the far end of the package. The telescopic arm drive mechanism 32 drives the telescopic arm 31 to retract and parry the package. The pickup unit rotary motor 333 drives the pickup unit 33 to rotate at an angle to retrieve goods from the corner of the vehicle.

[0067] The front surface of the picking unit 33 is provided with a suction cup 336. The suction cup 336 is connected to an external suction device to suck air and adsorb the express package. It works in conjunction with the telescopic arm 31 to retract and pull out the goods.

[0068] The front end of the picking unit 33 is provided with clamps 337 on both sides. The clamps 337 are driven to open and close by clamp drive gears 338. Under the action of clamp drive gears 338, the clamps 337 clamp the goods, which can conveniently pick up bagged express and other goods that are not easy to move or adhere to.

[0069] The telescopic arm 31 is connected to the crossbeam 2 via a hanging frame 13. The hanging frame 13 is equipped with an upper identification and positioning module 131 and a lower identification and positioning module 132. Preferably, the identification and positioning module on the hanging frame 13 integrates a distance sensor, a camera, and lighting equipment for the most accurate identification and positioning. The hanging frame 13 has telescopic arm forward and backward movement drive mechanisms 34 on both sides. The telescopic arm 31 is equipped with a telescopic arm rack 35 that cooperates with the telescopic arm forward and backward movement drive mechanisms 34. Specifically, the telescopic arm forward and backward movement drive mechanism 34 includes a drive motor, gears, etc., which drives the telescopic arm 31 to move forward and backward. The top of the hanging frame 13 is equipped with a telescopic arm lateral movement drive mechanism 36. The top of the crossbeam 2 is equipped with a lateral rack guide rail 37 that cooperates with the telescopic arm lateral movement drive mechanism 36. Specifically, the telescopic arm lateral movement drive mechanism 36 includes a drive motor, gears, etc., which drives the telescopic arm 31 to move on the lateral rack guide rail 37 of the crossbeam 2, realizing the horizontal movement of the telescopic arm 31.

[0070] During operation, the upper frame identification and positioning module 131 and the lower frame identification and positioning module 132 identify and locate the express packages on both sides of the carriage. Then, the telescopic arm lateral movement drive mechanism 36 drives the telescopic arm 31 to move on the transverse rack guide rail 37 of the cross frame 2 to adjust the horizontal position of the telescopic arm 31. The telescopic arm forward and backward movement drive mechanism 34 can drive the telescopic arm 31 to move forward and backward, which is convenient for picking up the innermost and outermost goods in the carriage.

[0071] like Figure 6 As shown, the conveying platform 4 includes a conveying platform support 41, a conveyor belt 42, a conveyor roller 43, a bearing 44, a lifting shaft 45, a lifting chain 46, and a conveying platform lifting drive mechanism 47. The conveyor belt 42 is mounted on the conveying platform support 41. Both sides of the conveying platform support 41 are connected to two gantry columns 1 via lifting shafts 45. Bearings 44 and conveyor rollers 43 are coaxially mounted on the outer side of the lifting shafts 45. The gantry columns 1 have grooves 14, and the bearings 44 are embedded in the grooves 14 of the gantry columns 1. The lifting shaft 45 is fixedly connected to the lifting chain 46. The conveying platform lifting drive mechanism 47 is fixedly mounted on the unloading platform vehicle A. Specifically, the conveying platform lifting drive mechanism 47 drives the lifting chain 46 to move, which in turn drives the lifting shaft 45 to move, thereby driving the conveying platform 4 to rise and fall. The conveying platform 4 of this invention also includes a conveyor belt drive mechanism for driving the conveyor belt 42.

[0072] The front end of the conveyor platform support 41 is provided with a front shovel 48, and the front end of the front shovel 48 is provided with a front shovel identification and positioning module 49. Preferably, the front shovel identification and positioning module 49 integrates a distance sensor, a camera, and lighting equipment together to perform the most accurate identification and positioning.

[0073] The number of the front shovel identification and positioning modules 49 is two or more.

[0074] This invention uses the gantry identification and positioning module 6, the hanging frame identification and positioning module 131 on the hanging frame 13, and the picking unit front identification and positioning module 331 on the picking unit 33 to collaboratively locate the position of the express delivery. The telescopic arm 31 is positioned by the telescopic arm drive mechanism 32 to the upper rear of the express delivery identified and located by the picking unit lower identification and positioning module 332. The telescopic picking arm 334 extends forward to the rear of the express delivery. The telescopic arm 31 is driven back by the telescopic arm drive mechanism 32 to pick up the express delivery to the conveyor platform 4. The express delivery is conveyed to the sorting conveyor belt by the conveyor belt 42 of the conveyor platform 4. At the same time, the hanging frame lower identification and positioning module 132 synchronously identifies and locates the express delivery being unloaded, and adjusts the lifting and lowering of the telescopic arm 31 to ensure the delivery of the express delivery. At this time, the unloading process of a single express delivery is completed.

[0075] like Figure 2 As shown, the bridging platform 7 includes a bridge frame base 71 and a track bridge 72. The track bridge 72 is slidably connected above the bridge frame base 71, and the track bridge 72 cooperates with the wheels 11 at the bottom of the unloading platform vehicle A.

[0076] The track bridge 72 is equipped with a track bridge identification and positioning module 73, and the bridge base 71 is equipped with a bridge base identification and positioning module 74. The track bridge identification and positioning module 73 and the bridge base identification and positioning module 74 are electrically connected to the central control box 10 of the correction platform.

[0077] The height and angle correction platform 8 includes a platform body 81, a lifting mechanism 82, and a rotating mechanism 83. The lifting mechanism 82 is located between the platform body 81 and the cable tray base 71, and the rotating mechanism 83 is located between the platform body 81 and the left / right position correction platform 9. Specifically, the lifting mechanism 82 and the rotating mechanism 83 perform lifting and rotating actions respectively to correct the height and angle. Preferably, the height and angle correction platform 8 is also equipped with one or more distance sensors for sensing distance signals.

[0078] The left and right position correction platform 9 includes a left and right position correction platform body 91, a left and right position correction platform drive mechanism 92, left and right position correction platform wheels 93, and a left and right position correction platform track 94. The left and right position correction platform body 91 is provided with left and right position correction platform wheels 93 at its bottom. The left and right position correction platform wheels 93 are driven by the left and right position correction platform drive mechanism 92. The left and right position correction platform track 94 is adapted to the left and right position correction platform wheels 93. Specifically, the left and right position correction platform drive mechanism 92 drives the left and right position correction platform wheels 93 to move along the left and right position correction platform track 94, thereby causing the left and right position correction platform body 91 to move left and right.

[0079] The left and right position correction platform body 91 is equipped with a left and right position recognition and positioning module 95 for precise positioning and control.

[0080] The function of the position correction platform B is to perform position correction by moving up and down, left and right, and rotating to achieve accurate positioning and docking between the unloading platform vehicle A and the truck bed. Specifically, the left and right movement of the left and right position correction platform 9 achieves alignment between the position correction platform B and the truck bed; the lifting and lowering of the height and angle correction platform 8 achieves height alignment; and the horizontal rotation of the height and angle correction platform 8 achieves angle alignment. The rail bridge 72 of the bridging platform 7 extends and docks with the lower edge of the truck bed, with the rail bridge 72 and the truck bed floor on the same plane. Thus, the unloading platform vehicle A can enter and exit the truck bed to complete the unloading.

[0081] A logistics and express delivery unloading method, such as Figure 7 As shown, assuming letter N=1 and letter A=5, the following steps are included:

[0082] Step 1: Park the truck in the designated parking space, open the cargo door and secure it, then start the unloading device;

[0083] Step 2: Perform a power-on security check after powering on;

[0084] Step 3: After the power-on safety inspection is completed, turn on the warning light and warning bell in a safe state. The warning light and warning bell will flash and ring in a cycle throughout the unloading process. After a 1-second safety prompt, the unloading process will begin. Real-time safety inspection and real-time mechanical fault detection will be carried out simultaneously during the unloading process.

[0085] Step 4: Turn off the machine after unloading is complete.

[0086] Furthermore, in step two, the power-on security check detects whether there are any living organisms in the work area and the warning range. When a danger signal is detected, a security alarm and voice prompt are activated, and the security check is performed again after a 1-second interval. If the danger signal still exists, the security alarm and voice prompt continue, and the security check is repeated until the danger signal is eliminated and the system enters a safe state.

[0087] Furthermore, step three also includes position correction, which is used to ensure that the unloading platform vehicle A located on the correction platform is consistent with the truck bed in terms of left and right position, height, and angle, so that the unloading platform vehicle A can enter the truck bed.

[0088] The position correction includes left and right position adjustment, height position adjustment, and angle alignment adjustment. The left and right position adjustment is obtained by image recognition of the left and right position recognition and positioning module 95 on the left and right position correction platform 9 to obtain the alignment error between the position correction platform B and the left and right position of the truck body, and the left and right position correction platform 9 adjusts the left and right position to align with the left and right of the truck body. The height position adjustment and angle alignment adjustment are obtained by image recognition and distance recognition of the bridge seat recognition and positioning module 74 on the bridging platform 7 to obtain the alignment error between the height and angle of the position correction platform B and the box truck body, and the height and angle correction platform 8 adjusts the height and angle to align with the height and angle of the truck body.

[0089] Furthermore, such as Figure 8 As shown, in step three, the unloading process proceeds as follows:

[0090] S1. Express Delivery Unloading Planning: The express delivery unloading planning includes AI recognition calculation and an unloading model library; specifically,

[0091] The AI ​​recognition and calculation process involves: acquiring images of stacked express packages using the recognition and positioning module; extracting stacked features using image recognition technology; and analyzing the stacking boundaries and types of express packages (boxes, bags, etc.) using AI recognition algorithms. This process generates express feature data that includes express boundary recognition data and express packaging recognition data.

[0092] The AI ​​recognition calculation includes AI uninstallation planning and manual uninstallation planning.

[0093] The AI ​​unloading plan involves comparing the current express delivery feature data with the express delivery feature data in the unloading model library. If no similar data is found, AI is used to calculate and confirm the unloading plan for the express delivery, and the current express delivery feature data and the unloading plan are added to the unloading model library.

[0094] The current express delivery feature data is compared with the express delivery feature data in the unloading model library. If similar express delivery feature data is found, the corresponding unloading plan is executed.

[0095] The manual unloading plan involves confirming the unloading plan through manual intervention and adding the current express delivery characteristic data and the unloading plan to the unloading model library.

[0096] The unloading model library includes express delivery stacking feature data and a corresponding unloading scheme library.

[0097] In practical applications, AI is used to identify and calculate the characteristics of express delivery stacking, and AI or manual unloading planning is applied to plan the unloading of express delivery in conjunction with the unloading model library, which determines the unloading order of the express delivery.

[0098] S2, Locate the package: The pickup unit locates the package to be unloaded;

[0099] S3. Confirm the unloading method: The unloading method includes suction cup unloading, clamp unloading, and lever unloading;

[0100] The suction cup unloading method is as follows: the express delivery is a box, and the identification and positioning module 331 in front of the picking unit identifies and positions the express delivery. The suction cup 336 on the picking unit 33 adheres to the box, and the telescopic arm 31 is retracted, thereby realizing the dragging of the express delivery onto the conveyor platform 4.

[0101] The clamp unloading method is as follows: the express is in a bag. With the help of the identification and positioning module 331 in front of the picking unit to identify and locate the express, the clamps 337 on both sides of the picking unit 33 clamp the edge of the express bag, and the telescopic arm 31 is retracted, thereby realizing the dragging of the express onto the conveyor platform 4.

[0102] The unloading method of the lever is as follows: in conjunction with the identification and positioning module 332 under the picking unit to identify and locate the express delivery, the bottom of the picking unit 33 extends the telescopic picking arm 334 to block the rear of the express delivery, and the telescopic arm 31 is retracted, thereby realizing the movement of the express delivery onto the conveyor platform 4.

[0103] S4. Adjust the position of the unloading platform vehicle: Based on the stacking pattern of the express packages obtained by the identification and positioning module and the distance between the unloading platform vehicle A and the nearest express package, further analyze and calculate the distance that the unloading platform vehicle A should be adjusted to; during the adjustment of the position of the unloading platform vehicle A, the express package stack is identified and positioned in real time to ensure that the unloading platform vehicle A is accurately adjusted to the correct position.

[0104] The adjustment of the unloading platform vehicle position includes both bridging mode and non-bridging mode;

[0105] Bridging mode: The rail bridge 72 extending from the bridging platform 7 establishes a bridge between the position correction platform B and the truck compartment, enabling the unloading platform vehicle A to approach or enter the truck compartment;

[0106] Non-bridging mode: The unloading platform vehicle A does not need to approach the truck bed via the rail bridge 72.

[0107] S5. Adjusting the telescopic arm: Execute the "observation-based unloading" unloading rule. During the unloading process, maintain real-time identification and positioning of the package pile and the package currently being unloaded, and adjust the telescopic arm 31's movement in real time based on the package's movement. The identification and positioning module on the telescopic arm 31 identifies and positions the package currently being unloaded in real time, and, in conjunction with the package unloading plan, electronically adjusts the precise height, left and right position, and telescopic length of the telescopic arm 31 in real time.

[0108] S6. Adjust the height of the conveyor platform: The front shovel identification and positioning module 49 of the conveyor platform 4 identifies and positions the express delivery currently being unloaded in real time. In conjunction with the express delivery unloading plan, the precise height of the conveyor platform 4 is adjusted in real time by electronic control. The distance between the unloading platform vehicle A and the express delivery is adjusted in real time by electronic control, thereby realizing the real-time electronic control adjustment of the distance between the conveyor platform 4 and the express delivery.

[0109] S7. Adjust the working position of the picking unit: The adjustment of the working position of the picking unit includes adjusting the angle of the picking unit and adjusting the tilt angle of the crossbeam;

[0110] Picking unit angle adjustment: When the express delivery is close to the truck bed wall, if the picking unit 33 cannot reach the appropriate picking position by adjusting the telescopic arm 31 to the leftmost or rightmost position of the crossbar 2, the rotation angle of the picking unit 33 can be adjusted by the picking unit rotation motor 333, so that the extended telescopic picking arm 334 can block the rear of the express delivery, thereby retracting the telescopic arm 31 to move the express delivery to the conveyor platform 4;

[0111] Adjustment of the tilt angle of the cross frame: When the height of the express delivery cannot meet the minimum unloading height requirement of the picking unit 33, the tilt angle of the cross frame 2 can be adjusted so that the telescopic arm 31 tilts downward, thereby reducing the minimum unloading height of the picking unit 33.

[0112] S8. Unloading of the picking unit: The unloading of the picking unit includes suction cup adsorption unloading, clamp gripping unloading and telescopic lever unloading;

[0113] The electronic control system controls the picking unit to perform unloading actions, including suction cup adsorption unloading, clamping unloading, or telescopic lever unloading. It also coordinates with the angle adjustment of the picking unit 33 and the tilt angle adjustment of the crossbeam to complete the unloading of express packages in special positions and with special sizes.

[0114] S9. Telescopic arm retraction: To prevent the telescopic arm 31 from colliding with the express delivery during the retraction process and affecting the normal unloading and delivery of the express delivery, the hanging frame identification and positioning module 132 on the telescopic arm 31 identifies and confirms the height and position of the express delivery in real time, and automatically adjusts the height and left and right position of the telescopic arm 31 or adjusts the height of the conveying platform 4.

[0115] S10. Unloading the express package to the conveyor platform: The telescopic arm 31 retracts to unload the express package to the conveyor platform 4.

[0116] S11. Transporting packages to the sorting conveyor belt: The conveyor belt 42 of the conveyor platform 4 transports the packages to the package sorting conveyor belt.

[0117] S12. Unloading completed;

[0118] S13. The unloading platform vehicle returns to the initial position of the position correction platform B;

[0119] S14: Power off.

[0120] Furthermore, in S12, once unloading is complete, steps S13 and S14 are executed; if unloading is not complete, the process returns to the express unloading plan for a new round of unloading.

[0121] Furthermore, in step three, during the real-time security check, when a security signal is detected, wait 1 second and then check again, and repeat the security check cyclically; when a danger signal is detected, activate the security alarm and voice prompt, and simultaneously count the number of alarms, the alarm counting formula being a+1;

[0122] When a < 5, wait for 1 second, then return to the real-time security check process and perform cyclical checks under safe conditions;

[0123] When a≥5, activate the safety alarm and voice prompts, broadcast them repeatedly, suspend unloading, and proceed with manual handling.

[0124] Furthermore, in step three, during the real-time mechanical fault detection process, when the detection display device is normal, wait 1 second and then detect again, repeating the process; when the detection display device malfunctions, activate the fault alarm and voice prompts for repeated broadcasts, suspend unloading, and perform manual handling.

[0125] Furthermore, the manual handling adopts the method of forced shutdown or manual operation. After forced shutdown, the unloading process ends. After restarting, a new round of inspection is carried out from the startup safety inspection. Manual operation refers to the staff driving away living organisms in the work area and warning range or the staff repairing mechanical faults. After the safety hazards are eliminated and the fault is cleared, the unloading continues, while the looping safety alarms and voice prompts are turned off.

[0126] 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 application concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for unloading goods in logistics and express delivery, characterized in that, Includes the following steps: Step 1: Park the truck in the designated parking space, open the cargo door and secure it, then start the unloading device; Step 2: Perform a power-on security check after powering on; The power-on security check is to detect whether there are living organisms in the work area and the warning range. When a danger signal is detected, the security alarm and voice prompt are activated. After an interval of N seconds, the security check is performed again. If the danger signal still exists, the security alarm and voice prompt continue. This cycle of security checks continues until the danger signal is cleared and the system enters a safe state. Step 3: After the power-on safety inspection is completed, turn on the warning light and warning bell in a safe state. The warning light and warning bell will flash and ring in a cycle throughout the unloading process. After waiting for N seconds for the safety prompt, the unloading process will begin. Real-time safety inspection and real-time mechanical fault detection will be carried out simultaneously during the unloading process. It also includes position correction, which includes left and right position adjustment, height position adjustment and angle alignment adjustment; The unloading process is carried out in the following steps: S1. Express delivery unloading plan: The express delivery unloading plan includes AI recognition calculation and unloading model library; S2, Locate the package: The pickup unit locates the package to be unloaded; S3. Confirm the unloading method: The unloading method includes suction cup unloading, clamp unloading, and lever unloading; S4. Adjusting the position of the unloading platform vehicle: The adjustment of the position of the unloading platform vehicle includes bridging mode and non-bridging mode; S5. Adjusting the telescopic arm: The identification and positioning module on the telescopic arm can identify and locate the express delivery being unloaded in real time. In conjunction with the express delivery unloading plan, the telescopic arm can be electronically adjusted in real time to achieve precise height, left and right position and telescopic length. S6. Adjust the height of the conveyor platform: The front shovel identification and positioning module of the conveyor platform identifies and locates the express delivery being unloaded in real time. In conjunction with the express delivery unloading plan, the precise height of the conveyor platform is adjusted in real time by electronic control. The distance between the unloading platform vehicle and the express delivery is also adjusted in real time by electronic control, thereby realizing the real-time electronic control adjustment of the distance between the conveyor platform and the express delivery. S7. Adjust the working position of the picking unit: The adjustment of the working position of the picking unit includes adjusting the angle of the picking unit and adjusting the tilt angle of the crossbeam; S8. Unloading of the picking unit: The unloading of the picking unit includes suction cup adsorption unloading, clamp gripping unloading and telescopic lever unloading; S9. Telescopic arm retraction: The lower identification and positioning module on the telescopic arm identifies and confirms the height and position of the express delivery in real time, and automatically adjusts the height and left and right position of the telescopic arm or adjusts the height of the conveyor platform. S10. Unloading packages to the conveyor platform: The telescopic arm retracts to unload packages to the conveyor platform. S11. Transporting packages to the sorting conveyor belt: The conveyor belt of the transport platform transports packages to the package sorting conveyor belt; S12. Unloading completed; S13. The unloading platform vehicle returns to the initial position of the position correction platform; S14: Power off; Step 4: Turn off the machine after unloading is complete.

2. The logistics and express delivery unloading method as described in claim 1, characterized in that, In S12, once unloading is complete, steps S13 and S14 are executed. If unloading is not complete, the process returns to the express unloading plan for a new round of unloading.

3. The logistics and express delivery unloading method as described in claim 2, characterized in that, In step three, during the real-time security check, when a security signal is detected, wait N seconds and then check again, and repeat the security check cyclically; when a danger signal is detected, activate the security alarm and voice prompt, and simultaneously count the number of alarms, the alarm counting formula being a+1; When a < A, wait N seconds and then return to the real-time security check process to perform cyclical checks under safe conditions; When a≥A, activate the safety alarm and voice prompts, repeat them continuously, suspend unloading, and proceed with manual handling.

4. The logistics and express delivery unloading method as described in claim 3, characterized in that, In step three, during the real-time mechanical fault detection process, when the detection display device is normal, wait N seconds and then detect again, repeating the process cyclically; when the detection display device malfunctions, activate the fault alarm and voice prompts for cyclical broadcasting, suspend unloading, and perform manual handling.

5. The logistics and express delivery unloading method as described in claim 4, characterized in that, The manual handling method is to force shutdown or manually operate. After the forced shutdown, the unloading process ends. After restarting, a new round of inspection is carried out from the startup safety check. Manual operation means that the staff remove living organisms in the work area and warning range or repair mechanical faults. After the safety hazards are eliminated and the fault is cleared, the unloading continues. At the same time, the looping safety alarms and voice prompts are turned off.

6. The logistics and express delivery unloading method as described in claim 4, characterized in that, Both the letter N and the letter A are variable values.

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