Material transportation trolley based on RFID and vision

Abstract

The utility model discloses a material transportation trolley based on RFID and vision, a camera and an RFID reader-writer are arranged on the trolley, a material lifting mechanism, a material translation mechanism and a multi-layer commodity shelf are fixedly arranged on a chassis of the trolley, and the material lifting mechanism comprises a lifting motor, a lifting platform and a vertical lifting structure; a material outlet is formed in the top of the trolley. The lifting platform is located below the material outlet. The material translation mechanism comprises a plurality of telescopic rods, a plurality of pushing plates and at least one driving motor, materials are placed on the multi-layer storage rack, the number of the pushing plates and the number of the telescopic rods are consistent with the number of layers of the multi-layer storage rack, and each pushing plate is located above the corresponding layer of the multi-layer storage rack. According to the utility model, various materials can be automatically transported, the transportation efficiency and the safety are higher, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to material transportation technical field especially relates to a material transportation dolly based on RFID and vision. BACKGROUND

[0002] The material transportation dolly is a kind of efficient, flexible transport tool, is widely used in industrial production, warehousing logistics and commercial distribution etc. field, can satisfy the material transportation demand under different scenes, significantly improves production efficiency, optimizes logistics process, and needs regular maintenance to ensure its stable operation.

[0003] The existing material transportation dolly is usually relatively simple in structural design, adopts single-layer platform or open frame structure more, and storage mode is single, cannot realize stratified storage, leads to low space utilization, it is difficult to meet the classification transportation demand of multiple categories of materials.Meanwhile, lack effective material fixing device, material is easy to slide or dump in the transportation process due to uneven ground or turning, there is greater security risk.In addition, the design flexibility of traditional dolly in loading and unloading direction is insufficient, does not set up convenient device such as sliding door, operation is limited, it is difficult to adapt to multiple scene demand.The above defects reduce the efficiency and safety of material transportation to some extent. UTILITARIAN CONTENT

[0004] The utility model provides a kind of material transportation dolly based on RFID and vision to solve the technical problems of the utility model in view of the defects in prior art.

[0005] The technical scheme that the utility model solves its technical problems is as follows:

[0006] The utility model provides a kind of material transportation dolly based on RFID and vision, camera and RFID read-write device are provided on dolly, the bottom of the chassis of dolly is provided with multiple drive wheels, material lifting mechanism, material translation mechanism and multilayer storage rack are fixedly arranged on the chassis of dolly, and the multilayer storage rack is arranged between the material lifting mechanism and the material translation mechanism;Wherein:

[0007] The material lifting mechanism includes lifting motor, lifting platform and vertical lifting structure;The lifting platform is arranged at the top of the vertical lifting structure, and the lifting motor is connected with the bottom of the vertical lifting structure;Material outlet is provided on the top of dolly, and the lifting platform is below the material outlet;

[0008] The material translation mechanism comprises a plurality of telescopic rods, a plurality of push plates and at least one driving motor, one end of the telescopic rod is fixedly connected with the push plate, and the other end is connected with the driving motor; the material is placed on the multi-layer shelf, the number of the push plate and the telescopic rod is consistent with the number of layers of the multi-layer shelf, and each push plate is located above the corresponding layer of the multi-layer shelf.

[0009] Further, the trolley is provided with a sliding door on the side, and the sliding door is located on the side of the multi-layer shelf.

[0010] Further, the trolley is provided with a battery.

[0011] Further, the trolley is provided with a control circuit board, and the battery, the driving motor and the lifting motor are electrically connected with the control circuit board.

[0012] Further, the trolley is provided with a sensor fusion module in front, and the sensor fusion module is electrically connected with the control circuit board.

[0013] Further, the RFID reader / writer is provided with a holder and a rotating base at the bottom, the RFID reader / writer is installed on the holder, the holder is installed on the rotating base, and the rotating base is fixedly connected to the top of the trolley at the bottom.

[0014] Further, the bottom of the camera is provided with a stabilizing holder, and the bottom of the stabilizing holder is fixedly connected to the front of the trolley.

[0015] Further, the trolley is provided with a WIFI antenna on the top, and the WIFI antenna is electrically connected with the control circuit board.

[0016] Further, the vertical lifting structure adopts a scissor lifting structure.

[0017] Further, the multi-layer shelf comprises a plurality of layer plates and support columns, and the support column connects two adjacent layer plates.

[0018] The utility model has the advantages of:

[0019] 1. This utility model employs a material lifting mechanism, a material translation mechanism, and a multi-layer shelf structure within the trolley. The multi-layer shelf stores multiple materials of different sizes and shapes within the trolley. The material translation mechanism moves the materials from the multi-layer shelf to the lifting platform of the material lifting mechanism in a specific order, and then the material lifting mechanism raises the materials to the material outlet. This utility model is applicable to various material transportation scenarios and possesses efficient, accurate, and safe material transportation capabilities.

[0020] 2. In the material lifting mechanism and material translation mechanism of this utility model, the design of the lifting platform and telescopic rod allows for flexible adjustment of the trolley's height and the position of the push plate, adapting to different transportation needs. Controlled by an electric lifting mechanism, the height of the lifting platform can be adjusted as needed to accommodate the output requirements of items at different heights. The lifting platform adopts a scissor-lift mechanical structure, ensuring stability while providing a flexible height adjustment range. The design of the lifting platform enables the trolley to provide precise item output in different transportation situations, avoiding transportation difficulties caused by items not being at the appropriate height.

[0021] 3. This utility model incorporates various sensing devices on the vehicle, including RFID and visual sensors. The RFID reader enables precise positioning and rapid identification of items and targets, ensuring the accuracy of the transportation route. During transportation, the RFID system can acquire real-time information about the items and environment, providing supplementary data to the navigation system and enhancing the vehicle's positioning accuracy. A high-definition camera is installed at the front of the vehicle, supporting flexible adjustment of horizontal and pitch angles to adapt to navigation needs in various complex environments.

[0022] In summary, the trolley of this utility model fully considers efficiency, stability and safety in the transportation process, effectively improving the efficiency of goods transportation, reducing the intensity of manual labor, and ensuring that goods safely arrive at the target location. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the external structure of the vehicle according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the vehicle according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the material lifting mechanism according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the material translation mechanism according to an embodiment of the present invention;

[0028] Figure 5 is a stable holder structure schematic diagram of the embodiment of the utility model;

[0029] Figure 6 is a rotating base structure schematic diagram of the embodiment of the utility model;

[0030] In the drawing: 1-drive wheel, 2-battery, 3-control circuit board, 4-driving motor, 5-sensor fusion module, 6-telescopic rod, 7-push plate, 8-camera, 9-rotating base, 10-holder support, 11-RFID reader-writer, 12-WIFI antenna, 13-sliding door, 14-chassis, 15-multilayer storage rack, 16-lifting motor, 17-lifting platform, 18-material outlet, 19-vertical lifting structure, 20-stable holder. DETAILED DESCRIPTION

[0031] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the embodiment, and the utility model is further detailed.The specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0032] Embodiment 1

[0033] As Figures 1-2 shown, the utility model embodiment based on RFID and visual material transport trolley is provided with camera 8 and RFID reader-writer 11 on trolley, and the chassis 14 below trolley is provided with multiple drive wheels 1, preferably, in the embodiment, four drive wheels 1 are arranged, respectively arranged at four corners of trolley, and six or eight drive wheels 1 can also be arranged.The chassis 14 of trolley is fixedly provided with material lifting mechanism, material translation mechanism and multilayer storage rack 15, and the multilayer storage rack 15 is arranged between the material lifting mechanism and the material translation mechanism;Wherein:

[0034] The material lifting mechanism includes lifting motor 16, lifting platform 17 and vertical lifting structure 19;The lifting platform 17 is arranged at the top of the vertical lifting structure 19, and the lifting motor 16 is connected with the bottom of the vertical lifting structure 19;The trolley top is provided with material outlet 18, and the lifting platform 17 is below the material outlet 18;

[0035] The material translation mechanism includes multiple telescopic rods 6, multiple push plates 7 and at least one driving motor 4, one end of the telescopic rod 6 is fixedly connected with the push plate 7, and the other end is connected with the driving motor 4;Material is placed on the multilayer storage rack 15, the number of push plate 7 and telescopic rod 6 is consistent with the number of layers of multilayer storage rack 15, and each push plate 7 is located above the corresponding layer of multilayer storage rack 15.

[0036] In the preferred embodiment, the multi-layer shelf 15 is provided with standardized storage baskets for placing materials. The shelf is adjusted in height by the lifting platform 17, and cooperates with the push plate 7 to transport the goods to the material outlet 18, ensuring the stability of transportation.

[0037] As shown in the preferred embodiment, the multi-layer shelf 15 is provided with three layers, and the number of push plates 7 and telescopic rods 6 is consistent with the number of layers, i.e. three respectively. There are two ways to set the driving motor 4, one is to set one driving motor 4, and then connect it with the three layers of telescopic rods 6. The other is to set three driving motors 4, and each layer of telescopic rod 6 is connected with one driving motor 4, both of which are feasible. Figures 3-6 The driving motor 4 is also connected with the driving wheel 1 for providing driving force.

[0038] The trolley is provided with a sliding door 13 on the side, which is located on the side of the multi-layer shelf 15. The trolley is provided with a battery 2 fixedly installed inside the trolley, which provides power support for each module. The trolley is provided with a control circuit board 3, and the battery 2, the driving motor 4 and the lifting motor 16 are electrically connected with the control circuit board 3.

[0039] The trolley is provided with a sensor fusion module 5 in front, which is electrically connected with the control circuit board 3. The sensor fusion module 5 includes laser radar, sensors and inertial measurement units, which are used to collect environmental information and optimize the path of the trolley. It should be noted that the path optimization and navigation related to software algorithms are all prior art, and are not the focus of the present application.

[0040] The bottom of the RFID reader 11 is provided with a holder 10 and a rotating base 9 to realize stable operation. The RFID reader 11 is installed on the holder 10, and the holder 10 is installed on the rotating base 9, and the rotating base 9 is fixedly connected to the top of the trolley. The rotating base 9 supports the multi-angle accurate rotation of the holder 10 and the high-frequency RFID reader 11, which is used to realize accurate positioning and rapid identification of the transportation target area.

[0041] The bottom of the camera 8 is provided with a stable holder 20, and the bottom of the stable holder 20 is fixedly connected to the front of the trolley.

[0042] The top of the trolley is provided with a WIFI antenna 12, which is electrically connected with the control circuit board 3.

[0043] Embodiment 2

[0044]

[0045] ​The intelligent material transportation trolley combines multiple advanced technical solutions in structure and function design, ensuring efficient, precise and safe completion of the article transportation task in complex environments such as hospitals. The following is the specific implementation scheme of the trolley.

[0046] 1. Drive wheel and control system

[0047] The intelligent material transportation trolley is equipped with multiple drive wheels for providing mobile driving force. The drive wheels are connected with drive motors, and precise movement of the trolley is realized through a control circuit board. The control circuit board is responsible for receiving signals from various sensor modules and external control signals, and adjusting the running state of the trolley in real time. The power and driving mode of the drive motor can be adjusted according to actual needs to adapt to different transportation scenarios.

[0048] 2. Multi-layer storage rack and article transportation

[0049] The L-shaped multi-layer storage rack of the trolley is designed to carry standardized storage baskets, and the storage baskets are used to store articles. The design of the storage baskets facilitates the storage and handling of articles and can adapt to articles of different shapes and sizes. The articles are precisely pushed to the article outlet through the cooperation of the telescopic rod and the push plate. The push plate is adjusted by the telescopic rod to ensure smooth and smooth transportation of the articles during transportation.

[0050] 3. Lifting platform

[0051] The trolley is equipped with a lifting platform controlled by an electric lifting mechanism. The height of the lifting platform can be adjusted as needed to adapt to different article output requirements. The lifting platform adopts a scissor mechanical structure, which can provide flexible height adjustment range while ensuring stability. The design of the lifting platform enables the trolley to provide precise article output in different transportation scenarios, avoiding transportation difficulties caused by incompatibility of article height.

[0052] 4. High-definition camera and visual SLAM navigation

[0053] The trolley is equipped with a high-definition camera at the front end, which supports flexible adjustment of horizontal direction and pitch angle to adapt to navigation requirements in different complex environments. The camera collects real-time visual data and combines with the visual SLAM algorithm to complete environment mapping and path planning. The SLAM algorithm can identify obstacles in the environment in real time according to the camera data and optimize the path to ensure efficient obstacle avoidance and safe operation of the trolley in complex environments.

[0054] It should be noted that the algorithms involved in the present application are all existing algorithms.

[0055] 5. WiFi positioning and remote communication

[0056] The WiFi antenna is installed on the top of the trolley for regional coarse positioning and is connected with the control circuit board to support remote control and communication. Through the WiFi module, the trolley can exchange real-time data with the external control terminal, receive instructions and feedback the transportation status, and ensure real-time updating of information during transportation. The WiFi positioning system can also provide coarse positioning function in a large range and support the navigation of the trolley in complex indoor environments.

[0057] 6. Rotating base and high-frequency RFID positioning

[0058] The rotating base on the top of the trolley is connected with the high-frequency RFID reader through the holder support, supporting the multi-angle accurate rotation of the RFID reader. The RFID reader can realize accurate positioning and rapid identification of the goods and target position, ensuring the accuracy of the transportation path. During transportation, the RFID system can obtain real-time goods and environmental information to provide supplementary data for the navigation system, enhancing the positioning accuracy of the trolley.

[0059] 7. Sensor fusion module

[0060] The intelligent material transportation trolley is equipped with a sensor fusion module, including a laser radar, sensors and an inertial measurement unit (IMU). The laser radar and sensors are used to detect the position and distance of obstacles in the surrounding environment, and the inertial measurement unit provides the pose data of the trolley. After processing, these data are fused with the visual SLAM system to realize efficient path optimization and obstacle avoidance function, ensuring the smooth operation of the trolley in complex environments.

[0061] 8. Goods outlet and side door

[0062] The trolley is provided with a goods outlet on one side for outputting the goods in the goods basket to the target position. The goods are moved to the outlet through the lifting platform or the push plate for quick delivery. The side door is arranged on the side of the trolley, facilitating the loading and unloading of goods and the maintenance of the equipment, and facilitating the operation personnel to use and maintain the trolley in different scenes.

[0063] Through the above specific embodiments, the intelligent material transportation trolley of the present application can efficiently complete the transportation task of goods in hospitals or other places, has high-precision positioning and navigation capability, can avoid obstacles, plan paths and ensure transportation safety in complex environments. The design of the trolley fully considers the efficiency, stability and safety during transportation, has high intelligent level, can effectively improve the efficiency of goods transportation, reduce the labor intensity, and ensure the safe arrival of goods at the target position.

[0064] Example 3

[0065] On the basis of examples 1 and 2, the design structure of several specific components is given, such as Figure 3As shown is the material lifting mechanism structure schematic view of the utility model embodiment:

[0066] The shearing type lifting platform comprises a shearing support, a motor driving device and a guide mechanism. The motor drives the screw rod to rotate through the speed reducer, drives the nut to move along the screw rod, pushes the bottom slider of the shearing arm to slide in the guide rail, so that the shearing arm is unfolded and shrunk, and then the lifting of the platform is realized. Through the combination of the motor and the closed loop control system, the lifting height of the platform can be accurately controlled, and the accuracy requirements of various scenes are met.

[0067] As Figure 4 As shown is the material translation mechanism structure schematic view of the utility model embodiment: it is composed of a shell and a guide rail, an extension rod, a gear transmission system, a motor driving unit and possibly a screw rod or rack mechanism. The shell is a rectangular frame, the guide rail is used for limiting the path of the internal moving parts, and the stability and accuracy of the movement are ensured. The extension rod is composed of a plurality of sleeved rod pieces, and can realize the extension and contraction of the length under the driving of external force. The gear transmission system is composed of a plurality of gears of different sizes, and the rotary motion of the driving motor is converted into the linear motion of the extension rod through mutual meshing, forming a speed reduction transmission device. The motor driving unit provides power through a servo motor or a stepping motor, accurately controls the movement of the extension rod, and is connected with the gear transmission system through a shaft coupling. If the screw rod or rack structure is included, the gear transmission system can drive the screw rod to rotate, drive the nut to move along the screw rod, and thus realize the extension and contraction motion.

[0068] As Figure 5 As shown is the stable holder structure schematic view of the utility model embodiment: the horizontal angle and the pitch angle of the high-definition camera are accurately moved through the holder. The holder is built-in with an electric motor or a servo motor, which respectively controls the horizontal rotation shaft and the vertical rotation shaft. The horizontal rotation shaft is combined with the motor, realizes accurate control through a speed reduction gear, and ensures stable rotation; the pitch shaft is installed with an angle adjusting motor, utilizes a ball screw or other mechanical structure to enhance the bearing capacity, and stably supports the adjustment of the camera. Through the control circuit board, the automatic system can accurately execute these adjustments, and ensures efficient and safe operation.

[0069] As Figure 6As shown, it is the rotating base structure schematic diagram of the embodiment of the utility model: the shell is the main body structure of base, presents the cylindrical shape, contains transmission mechanism and drive arrangement inside, plays the supporting and protection function;The bottom plate is the base part of base, is installed on the supporting surface through screw or other fixed mode, ensures that the base is stable;The rotating platform is located above the base, can bear the equipment or device that needs to rotate;The bearing is arranged between the rotating platform and the shell, provides the rotating support, reduces the friction and ensures the steady rotation;The drive arrangement is composed of motor, gear and other components, provides the power for the rotation;The limiting device is used for controlling the rotation angle range, prevents the excessive rotation;The mounting hole is designed on the bottom plate, is used for firmly fixing the base on the supporting surface, so as to realize the accurate, stable rotation function.

[0070] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the utility model claims.

Claims

1. An RFID and vision-based material transport trolley, a camera (8) and an RFID reader / writer (11) are arranged on the trolley, a plurality of drive wheels (1) are arranged below the chassis (14) of the trolley, characterized in that, The chassis (14) of the trolley is fixedly provided with a material lifting mechanism, a material translation mechanism and a multi-layer storage rack (15), which is arranged between the material lifting mechanism and the material translation mechanism. The material lifting mechanism comprises a lifting motor (16), a lifting platform (17) and a vertical lifting structure (19); the lifting platform (17) is arranged on the top of the vertical lifting structure (19), and the lifting motor (16) is connected with the bottom of the vertical lifting structure (19); the trolley top is provided with a material outlet (18), and the lifting platform (17) is located below the material outlet (18); The material translation mechanism comprises a plurality of telescopic rods (6), a plurality of push plates (7) and at least one driving motor (4); one end of the telescopic rod (6) is fixedly connected with the push plate (7), and the other end is connected with the driving motor (4); the material is placed on the multi-layer storage rack (15), the number of the push plate (7) and the telescopic rod (6) is consistent with the number of layers of the multi-layer storage rack (15), and each push plate (7) is located above the corresponding layer of the multi-layer storage rack (15).

2. The RFID and vision-based material handling cart of claim 1, wherein, The trolley is provided with a sliding door (13) on the side, and the sliding door (13) is located on the side of the multi-layer storage rack (15).

3. The RFID and vision based material handling cart of claim 1, wherein, The trolley is provided with a battery (2).

4. The RFID and vision-based material handling cart of claim 3, wherein, The trolley is provided with a control circuit board (3), and the battery (2), the driving motor (4) and the lifting motor (16) are electrically connected with the control circuit board (3).

5. The RFID and vision-based material handling cart of claim 4, wherein, The trolley is provided with a sensor fusion module (5) in front, and the sensor fusion module (5) is electrically connected with the control circuit board (3).

6. The RFID and vision-based material handling cart of claim 1, wherein, The bottom of the RFID reader (11) is provided with a holder (10) and a rotating base (9), the RFID reader (11) is installed on the holder (10), the holder (10) is installed on the rotating base (9), and the rotating base (9) is fixedly connected to the top of the trolley.

7. The RFID and vision-based material handling cart of claim 1, wherein, The bottom of the camera (8) is provided with a stabilizing holder (20), and the bottom of the stabilizing holder (20) is fixedly connected to the front of the trolley.

8. The RFID and vision-based material handling cart of claim 4, wherein, The top of the trolley is provided with a WIFI antenna (12), and the WIFI antenna (12) is electrically connected with the control circuit board (3).

9. The RFID and vision based material handling cart of claim 1, wherein, The vertical lifting structure (19) adopts a scissor lifting structure.

10. The RFID and vision-based material handling cart of claim 1, wherein, The multi-layer storage rack (15) comprises a plurality of layer plates and support columns, and the support columns connect two adjacent layer plates.

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