Vehicle-mounted liquid material intelligent loading and unloading device and method

Abstract

The invention discloses a vehicle-mounted liquid material intelligent loading and unloading device and method in the field of material loading and unloading equipment, and the vehicle-mounted liquid material intelligent loading and unloading device comprises a liquid conveying male head and a liquid conveying female head which are mutually sealed and detachably matched, a liquid conveying hose is arranged at one end, far away from the liquid conveying male head, of the liquid conveying female head and is used for being communicated with liquid material storage equipment; a mechanical arm is arranged on one side of the infusion female head, the infusion female head is provided with a connecting piece, and the mechanical arm is provided with a clamping mechanism used for being connected and matched with the connecting piece. The 3D identification camera is used for detecting the positions of the connecting piece and the transfusion male head; the 3D recognition camera, the mechanical arm and the first valve are all electrically connected to the control system, unmanned operation of the whole process of loading and unloading operation is achieved through the mechanical arm, the 3D camera and the automatic control technology, and the labor intensity and the labor cost are effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of material loading and unloading equipment, and in particular to a vehicle-mounted liquid material intelligent loading and unloading device and method. Background Art

[0002] Liquid materials transported by vehicles are widely used in various industries such as petroleum, chemical, food and beverage, and liquor. When vehicles are used to transport materials, there must be a process of loading and unloading materials. Due to the special properties of liquor, the current loading and unloading of vehicle-mounted liquor mainly adopts the bottom loading operation method, in which flexible hoses are used to manually connect the vehicle interface and the infusion interface. This method has high technical requirements for operators, and also has disadvantages such as high labor intensity and many safety hazards. In the petroleum and chemical industries, there are two methods of loading and unloading vehicle-mounted materials, top loading and bottom loading, according to the characteristics of the materials. The top loading has a high degree of automation, but the interface on the top of the vehicle is large and is not suitable for liquor transport vehicles. The bottom loading operation method generally uses a universal crane tube to connect the infusion port in the petrochemical industry. This method still requires manual docking, has a low degree of automation, and has high requirements for personnel, which increases the workload of personnel and is not conducive to achieving standardized operations. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is: how to improve the efficiency of loading and unloading of liquid materials on a vehicle.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] The vehicle-mounted intelligent loading and unloading device for liquid materials comprises an infusion male head and an infusion female head which are sealed and detachably matched with each other, the infusion male head is used to connect to the liquid storage space of the transport vehicle and is provided with a first valve, an infusion hose is provided at one end of the infusion female head away from the infusion male head, and the infusion hose is used to connect to the liquid material storage equipment; a mechanical arm is provided on one side, the infusion female head is provided with a connector, and the mechanical arm is provided with a clamping mechanism for coupling and matching with the connector; it also comprises a control system and a 3D recognition camera, the 3D recognition camera is used to detect the positions of the connector and the infusion male head; the 3D recognition camera, the mechanical arm and the first valve are all electrically connected to the control system.

[0006] Furthermore, it also includes a residual liquid recovery device, which includes a three-way joint, which is used to connect the infusion hose, liquid material storage equipment and reflux pipe respectively, and a check valve and a control valve are arranged between the reflux pipe and the three-way joint. In the residual liquid recovery state, the pneumatic valve is opened, and the liquid material in the infusion male and female connecting pipes and the infusion hose flows back to the reflux pipe in one direction.

[0007] Furthermore, an electrostatic release structure is provided on the infusion female head, and the contact head of the electrostatic release structure is used to contact the electrical connection contact plate of the vehicle.

[0008] Furthermore, the contact head of the electrostatic release structure extends along the axis of the infusion female head toward the infusion male head, and the contact head of the electrostatic release structure exceeds the position of the infusion female head. When the infusion female head and the infusion male head are docked, the contact head of the electrostatic release structure first contacts the electrical connection contact plate of the vehicle, and then the infusion female head and the infusion male head are docked.

[0009] Furthermore, a metering structure is provided on a side of the infusion hose away from the infusion female head, and the metering structure is used to monitor the input or output of the liquid material, and the metering structure is electrically connected to the control system.

[0010] Furthermore, a first pressure sensor is provided at the connection between the male infusion head and the female infusion head, and the first pressure sensor is electrically connected to the control system.

[0011] Furthermore, the clamping mechanism includes a clamp, and a fixing pin is arranged on the inner side of the clamp; the connecting member includes a positioning plate arranged on the infusion female head, and a pin hole is provided on the positioning plate for plugging with the fixing pin, and a second pressure sensor is arranged at the connection between the positioning pin and the pin hole, and the second pressure sensor is electrically connected to the control system.

[0012] The present invention also proposes a method for intelligent loading and unloading of liquid materials on a vehicle, comprising the following steps:

[0013] S1: The vehicle stops at the designated location;

[0014] S2: The 3D recognition camera is aimed at the above-mentioned connecting piece to take a picture and locate it, and the control system receives the positioning signal and controls the above-mentioned mechanical arm to move until the above-mentioned clamping structure is stably matched with the connecting piece;

[0015] S3: The 3D recognition camera is aimed at the position of the above-mentioned infusion male connector to take a picture and locate it, and the control system receives the positioning signal and controls the above-mentioned mechanical arm to drive the infusion female connector to move and dock with the infusion male connector;

[0016] S4: The control system controls the opening of the first valve to start loading and unloading of liquid materials.

[0017] Furthermore, if the 3D recognition camera cannot identify the exact location of the infusion male connector, the control system will remind the driver to re-park the vehicle at the designated location through the navigation display screen and broadcast sound.

[0018] Furthermore, when the metering structure provided on the above-mentioned infusion hose detects that the preset loading and unloading capacity is reached, the metering structure sends a signal to the control system, and the control system receives the signal to control the loading and unloading process to end.

[0019] The beneficial effects of the present invention are:

[0020] By combining intelligent technology with automation technology, the entire loading and unloading process can be unmanned through robotic arms, 3D cameras, and automatic control technology, effectively reducing labor intensity and labor costs. The infusion process is automatically controlled by the control system, which is more conducive to the realization of standardized operations and effectively reduces the safety risks caused by human subjective factors affecting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the matching relationship between the fixing pin and the pin hole of the present invention;

[0023] Figure 3 It is a schematic diagram of the residual liquid recovery device of the present invention;

[0024] Marked in the figure are, 1-infusion male connector, 2-infusion female connector, 3-infusion hose, 4-3D recognition camera, 5-robotic arm, 6-static release structure, 7-chuck, 8-positioning plate, 9-fixing pin, 10-pin hole, 11-return pipe, 12-three-way connector, 13-check valve, 14-control valve. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-Figure 3 As shown, an embodiment of the present application proposes an on-vehicle intelligent loading and unloading device for liquid materials, comprising an infusion male head 1 and an infusion female head 2 that are sealed and detachably matched with each other, the infusion male head 1 is used to connect to the liquid storage space of the transport vehicle and the infusion male head 1 is provided with a first valve, and an infusion hose 3 is provided at one end of the infusion female head 2 away from the infusion male head 1, and the infusion hose 3 is used to connect to a liquid material storage device; a mechanical arm 5 is provided on one side, the infusion female head 2 is provided with a connecting piece, and the mechanical arm 5 is provided with a clamping mechanism for coupling and matching with the connecting piece; it also includes a control system and a 3D recognition camera 4, the 3D recognition camera 4 is used to detect the position of the connecting piece and the infusion male head 1; the 3D recognition camera 4, the mechanical arm 5 and the first valve are all electrically connected to the control system.

[0027] First of all, it should be stated that by combining intelligent technology with automation technology, unmanned operation of the entire loading and unloading process is achieved through the use of robotic arms 5, 3D recognition cameras 4, and automatic control technology, which effectively reduces labor intensity and labor costs. The infusion process is automatically controlled by the control system, which is more conducive to the realization of standardized operations and effectively reduces the safety risks caused by the influence of human subjective factors on operations.

[0028] During normal operation, the 3D recognition camera 4 successively identifies the positioning positions of the connector and the infusion male head 1, and controls the movement of the robotic arm 5 through the control system to first connect to the infusion female head 2 and then drive the infusion female head 2 to dock with the infusion male head 1, thereby realizing the process of automatic construction of the infusion channel. Specifically, a first pressure sensor is provided at the connection between the infusion male head 1 and the infusion female head 2, and the first pressure sensor is electrically connected to the control system to ensure the docking accuracy of the infusion female head 2 and the infusion male head 1, thereby avoiding leakage due to loose docking.

[0029] Furthermore, the clamping mechanism includes a clamp 7, and a fixing pin 9 is arranged on the inner side of the clamp 7; the connecting part includes a positioning plate 8 arranged on the infusion female head 2, and a pin hole 10 is provided on the positioning plate 8 for plugging and cooperating with the fixing pin 9, and a second pressure sensor is arranged at the connection between the positioning pin and the pin hole 10, and the second pressure sensor is electrically connected to the control system, so that the clamp 7 can stably clamp and move the infusion female head 2.

[0030] It also includes a residual liquid recovery device, which includes a three-way connector 12. The three-way connector is used to connect the infusion hose 3, the liquid material storage device and the return pipe 11 respectively. A check valve 13 and a control valve 14 are arranged between the return pipe 11 and the three-way connector 12. The purpose of residual liquid recovery is to collect residual liquid in the pipeline, especially during the liquid filling process (i.e., filling liquid from the storage tank to the empty tank truck). When the liquid filling is completed, it is necessary to close the first valve of the infusion male connector 1 to recover the residual liquid. Because after closing the first valve, if the residual liquid in the pipeline is to be recovered, no air enters to form a pressure difference, and the residual liquid in the pipeline cannot flow. At this time, the check valve 13 and the control valve 14 are started to open to provide air to the pipeline to form a pressure difference, thereby ensuring that the residual liquid in the pipeline can be refluxed normally, and the residual liquid in the pipeline flows from the connection position between the infusion male connector 1 and the infusion female connector 2 to the infusion hose 3, and then flows back to the storage tank from the return pipe 11.

[0031] In actual work, static electricity may occur during the docking process of the infusion male head 1 and the infusion female head 2, which may pose a safety hazard. In order to improve the above situation, an electrostatic release structure 6 is provided on the infusion female head 2, and the contact head of the electrostatic release structure 6 is used to contact the electrical connection contact plate of the vehicle, and the contact head of the electrostatic release structure 6 extends along the axial direction of the infusion female head 2 toward the infusion male head 1, and the contact head of the electrostatic release structure 6 exceeds the position of the infusion female head 2. When the infusion female head 2 and the infusion male head 1 are docked, the contact head of the electrostatic release structure 6 first contacts the electrical connection contact plate of the vehicle, and the infusion female head 2 and the infusion male head 1 are docked later, so as to ensure that static electricity is eliminated and released before the infusion male head 1 and the infusion female head 2 are docked; specifically, the electrostatic release structure 6 includes a telescopic conductive rod with an elastic structure, and the contact head of the telescopic conductive rod is used to abut the electrical connection contact plate of the vehicle, and the telescopic conductive rod is connected with a wire, and the wire is connected with a grounding system to achieve static electricity elimination.

[0032] In order to further improve the degree of automation of the device, a metering structure is provided on the side of the infusion hose 3 away from the infusion female head 2. The metering structure is used to monitor the input or output of the liquid material. The metering structure is electrically connected to the control system. By monitoring the loading and unloading capacity and automatically starting and stopping the loading and unloading process through the control system, the risk of tank overflow due to human error can be effectively prevented, and standardized operation can be achieved.

[0033] At present, the material loading and unloading points in most factories are relatively scattered, and each scattered point needs to be equipped with personnel to carry out loading and unloading operations, which requires high labor costs. By designing and integrating the loading and unloading points in the factory to form a centralized loading and unloading point, and then modifying the intelligent loading and unloading device and control method, such as setting a track or a movable flat plate device for the intelligent loading and unloading device, one intelligent loading and unloading device can be used to carry out loading and unloading operations at multiple points, which can effectively reduce the number of operators and control labor costs.

[0034] This embodiment also proposes a method for intelligent loading and unloading of liquid materials on a vehicle, comprising the following steps:

[0035] S1: The vehicle stops at the designated position; the driver drives the vehicle to the designated position, and can use the limit block, parking line, and road surface sensor to assist the driver to park the transport vehicle at the designated position. The driver opens the bottom door of the transport vehicle to expose the infusion male connector 1, the first valve, and the electrical connection contact plate, waiting to be docked with the infusion female connector 2. It is worth noting that if the 3D recognition camera 4 cannot identify the accurate positioning position of the infusion male connector 1, the control system will remind the driver to re-park the vehicle at the designated position through the navigation display screen and the broadcast sound.

[0036] Specifically, the driver drives the transport vehicle to the designated parking line position. The width of the parking line position is determined according to the allowable range of the infusion male connector 1 that can be identified by the 3D recognition camera 4. The driver's parking operation is regulated by the pressure sensor set on the road surface at the edge of the parking line position. If the driver's wheel presses the road surface pressure sensor during the reversing process, the sensor will transmit the pressure signal to the control system remotely, and the control system will use the navigation display screen and broadcast sound beside the vehicle to correct the driver's parking operation. After the vehicle is parked at the designated position, the driver manually opens the bottom box door of the vehicle to expose the infusion male connector 1, the first valve, and the electrical connection contact plate, waiting for the subsequent docking operation with the infusion female connector 2; the 3D recognition camera 4 takes a photo of the exposed infusion male connector 1 tube mouth. After the photo analysis results show that the tube mouth contour, position, angle, distance, etc. can be fully identified, the control system will proceed to the next step. If the analysis results cannot fully identify the tube mouth contour, position, angle, distance, the control system will remind the driver to repeat the first step through the navigation display screen and broadcast sound, and re-park the vehicle to the designated position.

[0037] S2: The 3D recognition camera 4 is aimed at the above-mentioned connecting piece to take pictures and locate, and the control system receives the positioning signal and controls the above-mentioned mechanical arm 5 to move to the above-mentioned clamping structure to stably cooperate with the connecting piece; the control system enables the 3D recognition camera 4 to take pictures of the pin hole 10 of the positioning plate 8 on the infusion female connector 2 placed at a fixed position (the setting of the fixed position must be within the recognizable allowable range of the 3D recognition camera 4). After the photo analysis, the results show that the outline, position, angle, distance, etc. of the pin hole 10 on the infusion female connector 2 can be fully identified, and six important coordinates {X, Y, Z, RZ, RX, RY} that can describe the position of the positioning pin hole 10 are output. These six coordinate points correspond to the six degrees of freedom {S axis , L axis, U axis, R axis, B axis, T axis}, the control system converts these six coordinate data into coordinate data that can be recognized and applied by the robot arm 5 through the programmable controller (PLC), and then controls the robot arm 5 to drive the set fixed pin 9 to move to the pin hole 10. After the fixed pin 9 coincides with the center position of the pin hole 10, the telescopic cylinder on the robot arm 5 drives the chuck 7 to start moving, so that the fixed pin 9 coincides with the pin hole 10 and connects, and a second pressure sensor is set at the connection between the fixed pin 9 and the pin hole 10. When the specified pressure range value is reached (the pressure range value can be determined through the specific on-site debugging process), the second pressure sensor signal is transmitted to the control system for the next step of operation. If the fixed pin 9 and the pin hole 10 fail to connect successfully for many times, the control system will remind the driver through the navigation display screen and the broadcast sound, and remind the relevant staff to make judgments and handle through other means.

[0038] S3: The 3D recognition camera 4 is aimed at the position of the above-mentioned infusion male connector 1 to take photos and locate it. The control system receives the positioning signal and controls the above-mentioned mechanical arm 5 to drive the infusion female connector 2 to move and dock with the infusion male connector 1. After the fixing pin 9 of the mechanical arm 5 is successfully connected with the pin hole 10 of the positioning plate 8 of the infusion female connector 2, the control system sends a command to the 3D recognition camera 4 to take photos of the tube mouth of the infusion male connector 1 on the vehicle. After the photo analysis, the results show that the contour, position, angle, distance, etc. of the tube mouth of the infusion male connector 1 can be fully identified, and six important coordinates {X, Y, Z, RZ, RX, RY} that can describe the position of the tube mouth of the infusion male connector 1 can be output. These six coordinate points correspond to the six degrees of freedom {S axis, L axis, U axis, R axis, B axis, T axis} of the mechanical arm 5, respectively, to guide the infusion female connector 2 on the mechanical arm 5 to move toward the infusion male connector 1 (the infusion female connector 2 is connected to the infusion hose 3 to ensure that the infusion female connector 2 has a certain adjustment range during the movement). During the movement, the infusion female connector 2 is set The vehicle electrostatic release structure 6 on the infusion female head 2 first contacts the electrical connection contact plate on the vehicle (because the length of the vehicle electrostatic release connection device is longer than the infusion female head 2, it contacts the electrical connection contact plate before the male and female heads of the infusion are connected. This is also in line with the principle that the vehicle electrostatic release should be performed first and then the infusion pipeline should be connected during loading and unloading operations in dangerous environments). Then the infusion female head 2 is connected to the infusion male head 1, and a first pressure sensor is set at the connection between the infusion male and female heads. When the specified pressure range value is reached, it means that the connection between the infusion male and female heads is completed (the pressure range value can be determined through the specific on-site debugging process), and the pressure sensor signal is transmitted to the control system. The control system issues a disengagement instruction for the fixing pin 9 and the pin hole 10. After the disengagement is completed, the mechanical arm 5 withdraws to the specified position. If the mechanical arm 5 is always connected to the infusion male head 1, it will cause certain mechanical damage. This step is to prevent the loading and unloading operation of the vehicle-borne liquid from causing damage to the mechanical arm 5 due to the change in vehicle height. If the male and female infusion heads fail to connect successfully for multiple times, the control system will remind the driver through the navigation display screen and broadcast sound, and remind relevant staff to make judgments and handle the matter through other means.

[0039] S4: The control system controls the opening of the first valve to start loading and unloading liquid materials. The control system opens the first valve of the vehicle infusion male connector 1 by wireless control, so that the liquid material fills the pipeline, opens the metering structure, the pneumatic valve, and the pumping device, and starts the on-board liquid material unloading operation. When the metering structure value approaches 0 (or the specified unloading flow rate), the control system sequentially closes the pumping device, the first valve of the infusion male connector 1, the pneumatic valve, and the metering structure to complete the on-board liquid material unloading operation.

[0040] The control system opens the metering structure and inputs the specified material loading value into it. Then the control system opens the first valve of the vehicle infusion male connector 1 by wireless control and starts the vehicle-borne liquid material loading operation. When the flow metering device value reaches the specified loading amount, the control system turns off the pumping device and closes the first valve of the infusion male connector 1 by wireless control. At this time, the control system sequentially opens the pneumatic valve of the residual liquid recovery device to collect the residual liquid. After the residual liquid is recovered, the control system enables the 3D recognition camera 4 to take a picture of the pin hole 10 of the positioning plate 8 on the infusion female connector 2, controls the mechanical arm 5 to disconnect the infusion male and female connectors, and then performs the above-mentioned disengagement operation of the fixing pin 9 and the pin hole 10, moves the infusion female connector 2 to the specified position, withdraws the mechanical arm 5 to the specified position, and the driver closes the bottom box door of the vehicle and drives away from the vehicle, completing the entire process of loading and unloading liquid materials on the vehicle.

[0041] In summary, the present invention proposes an intelligent loading and unloading device and method for vehicle-mounted liquid materials, which combines intelligent technology with automation technology, and realizes unmanned operation of the entire loading and unloading operation through a mechanical arm, a 3D camera, wireless technology, and automatic control technology, effectively reducing labor intensity and labor costs. The infusion process is automatically controlled by the control system, which is more conducive to the realization of standardized operations and effectively reduces the safety risks caused by the influence of human subjective factors on operations. At the same time, the vehicle electrostatic release structure 6 automatically contacts the vehicle electrical connection contact plate while grabbing the infusion female head 2 through the mechanical arm 5, avoiding the safety risks caused by the lack of vehicle electrostatic release electrical connection due to the influence of human subjective factors in dangerous environments. The residual liquid recovery mechanism can be used to recover the residual liquid in the pipeline after the bottom loading and unloading operation is completed, which can avoid the overflow of residual liquid in the pipeline from the pipe mouth during the disconnection of the male and female heads, thereby reducing safety and environmental risks.

Claims

1. Intelligent loading and unloading device for liquid materials on vehicles, characterized in that: The invention comprises an infusion male head (1) and an infusion female head (2) which are sealed and detachably matched with each other, the infusion male head (1) being used to connect to the liquid storage space of a transport vehicle and the infusion male head (1) being provided with a first valve, an infusion hose (3) being provided at one end of the infusion female head (2) away from the infusion male head (1), the infusion hose (3) being used to connect to a liquid material storage device; a mechanical arm (5) being provided on one side of the infusion female head (2), the infusion female head (2) being provided with a connecting piece, the mechanical arm (5) being provided with a clamping mechanism for coupling and matching with the connecting piece; and a control system and a 3D recognition camera (4) being provided, the 3D recognition camera (4) being used to detect the positions of the connecting piece and the infusion male head (1); the 3D recognition camera (4), the mechanical arm (5) and the first valve are all electrically connected to the control system.

2. The vehicle-mounted liquid material intelligent loading and unloading device according to claim 1 is characterized in that: The invention also comprises a residual liquid recovery device, wherein the residual liquid recovery device comprises a three-way joint (12), wherein the three-way joint is respectively used to connect the infusion hose (3), the liquid material storage device and the return pipe (11), and a check valve (13) and a control valve (14) are arranged between the return pipe (11) and the three-way joint (12). In the residual liquid recovery state, the control valve (14) is opened, and the liquid material in the pipeline connected to the infusion male joint (1) and the infusion female joint (2) and the infusion hose (3) is unidirectionally returned to the return pipe (11).

3. The vehicle-mounted liquid material intelligent loading and unloading device according to claim 1 is characterized in that: An electrostatic discharge structure (6) is provided on the infusion female head (2), and a contact head of the electrostatic discharge structure (6) is used to contact an electrical connection contact plate of a vehicle.

4. The vehicle-mounted liquid material intelligent loading and unloading device according to claim 3 is characterized in that: The contact head of the electrostatic release structure (6) extends along the axis of the infusion female head (2) toward the infusion male head (1), and the contact head of the electrostatic release structure (6) exceeds the position of the infusion female head (2). When the infusion female head (2) and the infusion male head (1) are docked, the contact head of the electrostatic release structure (6) first contacts the electrical connection contact plate of the vehicle, and then the infusion female head (2) and the infusion male head (1) are docked.

5. The vehicle-mounted liquid material intelligent loading and unloading device according to claim 1 is characterized in that: A metering structure is provided on the side of the infusion hose (3) away from the infusion female head (2), and the metering structure is used to monitor the input amount or output amount of the liquid material, and the metering structure is electrically connected to the control system.

6. The vehicle-mounted liquid material intelligent loading and unloading device according to claim 1 is characterized in that: A first pressure sensor is provided at the connection between the infusion male connector (1) and the infusion female connector (2), and the first pressure sensor is electrically connected to the control system.

7. The vehicle-mounted liquid material intelligent loading and unloading device according to claim 1 is characterized in that: The clamping mechanism comprises a clamp (7), and a fixing pin (9) is arranged inside the clamp (7); the connecting member comprises a positioning plate (8) arranged on the infusion female connector (2), and a pin hole (10) is provided on the positioning plate (8) to be plugged with the fixing pin (9), and a second pressure sensor is provided at the connection between the positioning pin and the pin hole (10), and the second pressure sensor is electrically connected to the control system.

8. Intelligent loading and unloading method of liquid materials on vehicles, characterized in that: The vehicle-mounted liquid material intelligent loading and unloading device according to any one of claims 1 to 7 comprises the following steps: S1: The vehicle stops at the designated location; S2: The 3D recognition camera (4) is aimed at the connecting piece to take a picture and locate it, and the control system receives the positioning signal and controls the mechanical arm (5) to move until the clamping structure is stably matched with the connecting piece; S3: The 3D recognition camera (4) is aimed at the position of the infusion male connector (1) to take a picture and locate the position, and the control system receives the positioning signal and controls the mechanical arm (5) to drive the infusion female connector (2) to move and dock with the infusion male connector (1); S4: The control system controls the opening of the first valve to start loading and unloading of liquid materials.

9. The intelligent loading and unloading method of vehicle-mounted liquid materials according to claim 8, characterized in that: If the 3D recognition camera (4) cannot identify the accurate location of the infusion male connector (1), the control system will remind the driver to park the vehicle again at the designated location through the navigation display screen and broadcast sound.

10. The intelligent loading and unloading method of vehicle-mounted liquid materials according to claim 8, characterized in that: When the metering structure arranged on the infusion hose (3) detects that the preset loading and unloading capacity has been reached, the metering structure sends a signal to the control system, and the control system receives the signal to control the loading and unloading process to end.

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