An automatically calculating shopping cart and its usage method

Abstract

This invention discloses an automatically calculating shopping cart and its usage method, belonging to the field of shopping cart technology. It includes a following shopping cart: the following shopping cart comprises a cart body, a drive component, a position sensing component, a control component, a weighing component, and a following sensing component. The drive component is connected to the bottom of the cart body. The control component and the following sensing component are connected to the cart body. The weighing component is fixedly installed on the inner wall of the cart body. The position sensing component is installed on the side wall of the following shopping cart. The control component is electrically connected to the drive component, the weighing component, the position sensing component, and the following sensing component. A movable Bluetooth card fixing structure is connected to the side wall of the control component, and the movable Bluetooth card fixing structure is connected to the following sensing component. An initial positioning structure is fixedly connected to the bottom of the cart body. A blocking component is connected to the cart body for sealing the top of the cart body after checkout. Through the above methods, this invention achieves following shopping and automatic parking.

Description

Technical Field

[0001] This invention relates to the field of shopping cart technology, and more specifically to an automatically calculating shopping cart and its usage method. Background Technology

[0002] Supermarket shopping carts are a type of shopping equipment used by people when shopping in supermarkets or shopping malls. They are an indispensable tool in people's lives. Using shopping carts when shopping in supermarkets or shopping malls can satisfy more of the user's shopping needs and also help increase the user's shopping transaction volume.

[0003] Meanwhile, for example, Chinese patent CN213545441U discloses a self-checkout shopping cart, including a basket, wheels at the bottom of the basket, and a handle and support at the top of the basket. A self-checkout device is mounted on the support. A vertical partition divides the basket into two areas, each with a weighing device at its bottom. The shopping cart also includes an alarm, and the self-checkout device is communicatively connected to both the alarm and the weighing device. This invention divides the shopping cart into a purchase area and a cancellation area, providing customers with more choices when buying goods. Furthermore, the combined use of weighing sensors in the purchase and cancellation areas, along with a camera for barcode scanning, prevents theft and more accurately calculates the true amount spent in the purchase area.

[0004] However, the above structure has the following problems: the existing shopping cart cannot follow the customer's shopping, and it cannot control the customer to send the shopping cart to the parking point, so other people are needed to collect and organize it.

[0005] Based on this, the present invention designs an automatically calculating shopping cart and its usage method to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an automatically calculated shopping cart and its usage method.

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

[0008] An automatically calculating shopping cart, including a follow-up cart:

[0009] The following shopping cart includes a cart body, a drive assembly, a position sensing assembly, a control assembly, a weighing assembly, and a following sensing assembly. The drive assembly is connected to the bottom of the cart body, the control assembly and the following sensing assembly are connected to the cart body, the weighing assembly is fixedly installed on the inner wall of the cart body, the position sensing assembly is installed on the side wall of the following shopping cart, and the control assembly is electrically connected to the drive assembly, the weighing assembly, the position sensing assembly and the following sensing assembly.

[0010] The control component has a movable Bluetooth card fixing structure connected to its side wall, and the movable Bluetooth card fixing structure is connected to the follow-sensing component.

[0011] A handle is fixedly connected to the left side wall of the vehicle body;

[0012] The bottom of the vehicle body is fixedly connected to the original positioning structure, and the original positioning structure is connected to the ground at the parking point;

[0013] The vehicle body is connected to a shielding component for sealing the top of the vehicle body after settlement.

[0014] Furthermore, the drive assembly includes a drive wheel, a guide wheel, a first motor, a horizontal shaft, a first bevel gear, a second bevel gear, and a second motor. The first motor and the second motor are fixedly installed at the bottom left and right ends of the vehicle body. The first motor drive end is fixedly connected to the first bevel gear, and the first bevel gear meshes with the second bevel gear. The horizontal shaft is fixedly installed in the mounting hole of the second bevel gear. The front and rear ends of the horizontal shaft are fixedly connected to the rollers of the drive wheel. The drive wheel connecting bracket is symmetrically fixedly installed on the front and rear sides of the left end of the vehicle body. The second motor drive end is fixedly connected to the guide wheel, which is located at the middle of the bottom right end of the vehicle body.

[0015] Furthermore, the position sensing components include radar, camera, and access control sensing components. The radar is installed in the mounting holes on the side wall of the vehicle body, the access control sensing components are fixedly installed on the right end of the front and rear side walls of the vehicle body, and the camera is fixedly installed on the upper end of the right side wall of the vehicle body.

[0016] Furthermore, the control components include a barcode display screen, a battery, and a controller. The battery and controller are fixedly installed at the bottom of the vehicle body, while the barcode display screen is fixedly installed at the upper left side wall of the vehicle body.

[0017] Furthermore, the weighing assembly includes a weighing device, a horizontal fixing plate, and a pad. The front end of the horizontal fixing plate is fixedly connected to the inner wall of the vehicle body, the weighing device is fixedly installed on the top of the horizontal fixing plate, and the pad is fixedly installed on the sensing end of the weighing device.

[0018] Furthermore, the follow-sensing component includes a fixed Bluetooth card and a movable Bluetooth card. The fixed Bluetooth card is fixedly installed on the right side wall of the vehicle body. The fixed Bluetooth card and the movable Bluetooth card are wirelessly connected, and the movable Bluetooth card is engaged with the movable Bluetooth card fixing structure.

[0019] Furthermore, the active Bluetooth card fixing structure includes a rotating pressure plate, a plug sleeve, a second pressure sensor, and a servo motor. The servo motor and the plug sleeve are fixedly installed on the side wall of the barcode display screen. The second pressure sensor is installed at the bottom of the plug sleeve, and the sensing end of the second pressure sensor is located at the bottom of the plug sleeve. The driving end of the servo motor is fixedly connected to the rotating pressure plate. The outer wall of the active Bluetooth card is inserted into the inner wall of the plug sleeve. The bottom of the active Bluetooth card is in contact with the sensing end of the second pressure sensor, and the bottom of the rotating pressure plate is in contact with the top of the active Bluetooth card.

[0020] Furthermore, the original positioning structure includes a positioning seat, an electric push rod, a plug-in block, a first pressure sensor, and a plug-in hole. The electric push rod is fixedly installed at the bottom of the vehicle body, and the drive end of the electric push rod is fixedly connected to the plug-in block. The first pressure sensor is installed in the mounting hole of the plug-in block. The positioning seat is fixedly installed on the ground at the parking point. The positioning seat has a plug-in hole, and the plug-in hole is slidably connected to the outer wall of the plug-in block. When the plug-in block and the plug-in hole are plugged in, the bottom of the first pressure sensor contacts the bottom of the plug-in hole.

[0021] Furthermore, the shielding assembly includes a third motor, a conveyor belt, a rotating rod, and a material handling port. The rotating rod is rotatably connected to the inner wall of the vehicle body via bearings, and the rotating rod is rotatably connected to the inner wall of the conveyor belt. The upper rotating rod is located on the inner wall of the vehicle body, and the lower rotating rod is located below the horizontal fixed plate. The conveyor belt surrounds the weighing assembly, and the conveyor belt has a material handling port for picking up and placing goods. The third motor is fixedly connected to the side wall of the vehicle body, and the third motor is fixedly connected to one of the rotating rods.

[0022] A method for using an automatically calculating shopping cart includes the following steps:

[0023] Step 1: When the vehicle moves to the supermarket entrance access control, the third motor of the blocking component drives the rotating rod to rotate, the rotating rod drives the conveyor belt to rotate, the conveyor belt drives the material picking port to move into the vehicle body, the conveyor belt drives the material picking port to move to the top of the vehicle body, opening the top of the vehicle body. The servo motor of the movable Bluetooth card fixing structure drives the rotating pressure plate to rotate, and the rotating pressure plate opens the top of the plug sleeve.

[0024] Step Two: Remove the active Bluetooth card from the following sensing component. The controller of the control component activates the barcode scanning display, radar, drive wheel, camera, access control sensing component, fixed Bluetooth card, active Bluetooth card, first motor, weighing device, controller, and blocking component. The third motor of the blocking component drives the rotating rod to rotate, which in turn drives the conveyor belt to rotate. The conveyor belt moves the material inlet into the vehicle body and then to the top of the vehicle body. The blocking component opens the top of the vehicle body. The active and fixed Bluetooth cards work together to provide a following signal to the controller. The controller controls the first and second motors. The first motor drives the first bevel gear. The first bevel gear rotates, driving the second bevel gear to rotate, which in turn drives the horizontal shaft to rotate. The horizontal shaft then drives the rollers of the drive wheel to rotate, which in turn drives the vehicle body to move. Simultaneously, the second motor drives the guide wheel to rotate, guiding the vehicle body's movement and enabling automatic following. As the vehicle body moves, radar and cameras detect the surrounding environment to prevent collisions. After the product is selected, its barcode is scanned at the barcode scanning display screen. The barcode scanning display screen and controller store and calculate the product information. The weighing unit's weigher weighs the product through a pad and then verifies it against the product information to avoid calculation errors, thus achieving automatic calculation and automatic following.

[0025] Step 3: When the vehicle moves to the supermarket exit gate, the controller locks the first and second motors, and the vehicle is in a disabled state. Then, the active Bluetooth card is inserted into the plug sleeve. The second pressure sensor senses the pressure value and the servo motor presses the rotating plate into the plug sleeve to prevent the active Bluetooth card from being taken away. The third motor of the blocking component drives the rotating rod to rotate, and the rotating rod drives the conveyor belt to rotate. The conveyor belt moves the material dispensing port into the vehicle body. The solid part of the conveyor belt seals the top of the vehicle body to prevent the loss of goods after checkout. At the same time, it is convenient to control the customer to send the shopping cart to the parking point without the need for other people to collect and sort it. Then, the barcode display screen sends a checkout instruction. After checkout, the first motor and controller of the drive component following the shopping cart stop, and the first motor and controller are free to move.

[0026] Step 4: The customer pushes the cart to move. When the cart moves to the parking point, the electric push rod moves the plug block into the plug hole of the positioning seat. When the first pressure sensor contacts the bottom of the plug hole, the first pressure sensor senses the parking signal. The shielding component opens the top of the cart, making it easy for the customer to send the shopping cart to the parking point without the need for other people to collect and organize it.

[0027] Step 5: The third motor of the shielding component drives the rotating rod to rotate, which in turn drives the conveyor belt to rotate. The conveyor belt moves the material inlet into the vehicle body and then to the top of the vehicle body, opening the top of the vehicle body for easy retrieval of goods after parking. When the weighing device senses zero vertically, the electric push rod moves the plug-in block, separating the plug-in block from the plug-in hole.

[0028] Beneficial effects:

[0029] The present invention features a control drive component, a position sensing component, a control component, a weighing component, and a follow sensing component that work together to facilitate shopping with the help of the shopping cart. The movable Bluetooth card fixing structure facilitates monitoring whether the follow sensing component is lost and whether it is retrieved. The original position positioning structure and the blocking component work together to facilitate controlling the customer to send the shopping cart to the parking point. No one else is needed to collect and organize it, thus realizing shopping with the help of the cart and automatic parking.

[0030] When the vehicle moves to the supermarket entrance access control, the active Bluetooth card fixing structure and the blocking component open, allowing the active Bluetooth card of the following sensing component to be removed. The controller of the control component activates the barcode scanning display screen, radar, drive wheel, camera, access control sensing component, fixed Bluetooth card, active Bluetooth card, first motor, weighing device, controller, and blocking component. The third motor of the blocking component drives the rotating rod to rotate, which in turn drives the conveyor belt to rotate. The conveyor belt moves the material dispensing port into the vehicle body and then to the top of the vehicle body. The blocking component opens the top of the vehicle body, and the active and fixed Bluetooth cards cooperate to provide a following signal to the controller. The controller then controls the first motor and the third motor. Two motors work together. The first motor drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate. The second bevel gear drives the horizontal shaft to rotate, which in turn drives the rollers of the drive wheel to rotate. The drive wheel then moves the vehicle body. Simultaneously, the second motor drives the guide wheel to rotate, which guides the movement of the vehicle body, enabling automatic following. As the vehicle body moves, radar and cameras detect the surrounding environment to avoid collisions. After the product is selected, its barcode is scanned at the barcode scanning display screen. The barcode scanning display screen and controller store and calculate the product information. The weighing unit's weigher weighs the product through a pad and then verifies it against the product information to avoid calculation errors, thus achieving automatic calculation and automatic following.

[0031] When the vehicle moves to the supermarket entrance access control, the servo motor of the movable Bluetooth card fixing structure drives the rotating pressure plate to rotate. The rotating pressure plate opens the top of the insertion sleeve, and the movable Bluetooth card is taken out from the insertion sleeve. When the vehicle moves to the supermarket exit access control, the controller controls the first motor and the second motor to lock, and the blocking component blocks the top of the vehicle, so the vehicle is in an immobilized state. Then, the movable Bluetooth card is inserted into the insertion sleeve. The second pressure sensor senses the pressure value and the servo motor presses the rotating pressure plate into the insertion sleeve to prevent the movable Bluetooth card from being taken away without permission. Then, the barcode display screen issues a settlement instruction. After settlement, the first motor and the controller of the drive component following the shopping cart stop, and the first motor and the controller are in a free-moving state, which facilitates the storage of the movable Bluetooth card.

[0032] In this invention, the blocking component remains in a blocked state until the customer pushes the cart to the parking point after checkout. When the cart moves to the parking point, the electric push rod drives the plug-in block to move into the plug-in hole of the positioning seat. When the first pressure sensor contacts the bottom of the plug-in hole, the first pressure sensor senses the parking position signal, and the blocking component opens the top of the cart, making it easy for the customer to send the shopping cart to the parking point without the need for others to collect and organize it. When the weighing device senses that the vertical position is zero, the electric push rod drives the plug-in block to move, and the plug-in block separates from the plug-in hole, making it easy to return to a free state with the shopping cart.

[0033] In this invention, after checkout, the third motor of the shielding component drives a rotating rod to rotate, which in turn drives a conveyor belt to rotate. The conveyor belt moves the material dispensing port into the cart body, and the solid part of the conveyor belt seals the top of the cart body, preventing the loss of goods after checkout. At the same time, it facilitates the control of customers to send the shopping cart to the parking point without the need for others to collect and organize it. When the shopping cart is parked at the parking point, the third motor of the shielding component drives the rotating rod to rotate, which in turn drives the conveyor belt to rotate. The conveyor belt moves the material dispensing port into the cart body and then to the top of the cart body, opening the top of the cart body for easy retrieval of goods after parking. The top of the cart body is in the open state during shopping. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0035] Figure 1 This invention provides an automatically calculating 3D shopping cart. Figure 1 ;

[0036] Figure 2 This is a front view of a shopping cart that can be automatically calculated according to the present invention;

[0037] Figure 3 This invention provides an automatically calculating 3D shopping cart. Figure 2 ;

[0038] Figure 4 This invention provides an automatically calculating 3D shopping cart. Figure 3 ;

[0039] Figure 5 This invention provides an automatically calculating 3D shopping cart. Figure 4 ;

[0040] Figure 6 For along Figure 3 AA direction section Figure 1 ;

[0041] Figure 7 for Figure 6 Enlarged view of the structure at point B;

[0042] Figure 8 for Figure 1 Enlarged view of the structure at point C.

[0043] The labels in the diagram represent:

[0044] 1. Shopping Cart 11. Cart Body 12. Barcode Scanning Display 13. Radar 14. Drive Wheel 15. Guide Wheel 16. Camera 17. Access Control Sensor Component 18. Fixed Bluetooth Card 19. First Motor 110. Horizontal Axis 111. First Bevel Gear 112. Second Bevel Gear 113. Movable Bluetooth Card 114. Weighing Device 115. Battery 116. Horizontal Fixing Plate 117. Controller 118. Second Motor 119. Pad 2. Original Position Positioning Structure 21. Positioning Seat 22. Electric Push Rod 23. Insert Block 24. First Pressure Sensor 25. Insert Hole 3. Handle 4. Movable Bluetooth Card Fixing Structure 41. Rotating Pressure Plate 42. Insert Sleeve 43. Second Pressure Sensor 44. Servo Motor 5. Blocking Component 51. Third Motor 52. Conveyor Belt 53. Rotating Rod 54. Material Dispensing Port Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] The present invention will be further described below with reference to embodiments.

[0047] Example 1

[0048] Please refer to the instruction manual appendix. Figure 1-8 An automatically calculating shopping cart, including a follow-cart feature:

[0049] The following shopping cart 1 includes a cart body 11, a drive assembly, a position sensing assembly, a control assembly, a weighing assembly, and a following sensing assembly. The drive assembly is connected to the bottom of the cart body 11. The control assembly and the following sensing assembly are connected to the cart body 11. The weighing assembly is fixedly installed on the inner wall of the cart body 11. The position sensing assembly is installed on the side wall of the following shopping cart 1. The control assembly is electrically connected to the drive assembly, the weighing assembly, the position sensing assembly, and the following sensing assembly.

[0050] The control component has a movable Bluetooth card fixing structure 4 connected to its side wall, and the movable Bluetooth card fixing structure 4 is connected to the follow-sensing component.

[0051] A handle 3 is fixedly connected to the left side wall of the vehicle body 11;

[0052] The bottom of the vehicle body 11 is fixedly connected to the original positioning structure 2, and the original positioning structure 2 is connected to the ground at the parking point;

[0053] The vehicle body 11 is connected to a shielding component 5 for sealing the top of the vehicle body 11 after settlement;

[0054] The control drive component, position sensing component, control component, weighing component, and follow sensing component of the shopping cart 1 work together to facilitate follow-up shopping. The active Bluetooth card fixing structure 4 makes it easy to monitor whether the follow sensing component is lost and whether it is retrieved. The original position positioning structure 2 and the blocking component 5 work together to easily control the customer to send the shopping cart to the parking point without the need for other people to collect and organize it, realizing follow-up shopping and automatic parking.

[0055] The drive assembly includes a drive wheel 14, a guide wheel 15, a first motor 19, a horizontal shaft 110, a first bevel gear 111, a second bevel gear 112, and a second motor 118. The first motor 19 and the second motor 118 are fixedly installed at the bottom left and right ends of the vehicle body 11. The drive end of the first motor 19 is fixedly connected to the first bevel gear 111, and the first bevel gear 111 is meshed with the second bevel gear 112. The horizontal shaft 110 is fixedly installed in the mounting hole of the second bevel gear 112. The front and rear ends of the horizontal shaft 110 are fixedly connected to the rollers of the drive wheel 14. The connecting frame of the drive wheel 14 is symmetrically fixedly installed on the front and rear sides of the left end of the vehicle body 11. The drive end of the second motor 118 is fixedly connected to the guide wheel 15, and the guide wheel 15 is located at the middle of the bottom right end of the vehicle body 11.

[0056] The position sensing component includes a radar 13, a camera 16, and an access control sensing component 17. The radar 13 is installed in the mounting hole on the side wall of the vehicle body 11, the access control sensing component 17 is fixedly installed on the right end of the front and rear side walls of the vehicle body 11, and the camera 16 is fixedly installed on the upper end of the right side wall of the vehicle body 11.

[0057] The control components include a barcode display screen 12, a battery 115, and a controller 117. The battery 115 and the controller 117 are fixedly installed inside the bottom of the vehicle body 11, and the barcode display screen 12 is fixedly installed on the upper left side wall of the vehicle body 11.

[0058] The weighing assembly includes a weighing device 114, a horizontal fixing plate 116, and a pad 119. The front end of the horizontal fixing plate 116 is fixedly connected to the inner wall of the vehicle body 11. The weighing device 114 is fixedly installed on the top of the horizontal fixing plate 116, and the pad 119 is fixedly installed on the sensing end of the weighing device 114.

[0059] The follow-sensing component includes a fixed Bluetooth card 18 and a movable Bluetooth card 113. The fixed Bluetooth card 18 is fixedly installed on the right side wall of the vehicle body 11. The fixed Bluetooth card 18 is wirelessly connected to the movable Bluetooth card 113, and the movable Bluetooth card 113 is snapped into the movable Bluetooth card fixing structure 4.

[0060] When the shopping cart 1 is outside the supermarket entrance gate and the supermarket exit gate, the first motor 19 and controller 117 of the drive assembly are stopped, and the first motor 19 and controller 117 are free to move. The cart body 11 can be pushed by the handle 3, and the cart body 11 can move freely with the cooperation of the drive wheel 14 and the guide wheel 15.

[0061] When the vehicle body 11 moves to the supermarket entrance access control, the active Bluetooth card fixing structure 4 and the blocking component 5 open, removing the active Bluetooth card 113 of the follow-sensor component. The controller 117 of the control component activates the barcode display screen 12, radar 13, drive wheel 14, camera 16, access control sensor component 17, fixed Bluetooth card 18, active Bluetooth card 113, first motor 19, weighing device 114, controller 117, and blocking component 5. The third motor 51 of the blocking component 5 drives the rotating rod 53 to rotate, which in turn drives the conveyor belt 52 to rotate. The conveyor belt 52 moves the material dispensing port 54 into the vehicle body 11. The conveyor belt 52 then moves the material dispensing port 54 to the top of the vehicle body 11, whereupon the blocking component 5 opens the top of the vehicle body 11. The active Bluetooth card 113 and fixed Bluetooth card 18 cooperate to provide a follow signal to the controller 117, which then controls the first motor. The first motor 19 drives the first bevel gear 111 to rotate, the first bevel gear 111 drives the second bevel gear 112 to rotate, the second bevel gear 112 drives the horizontal shaft 110 to rotate, the horizontal shaft 110 drives the roller of the drive wheel 14 to rotate, the drive wheel 14 drives the vehicle body 11 to move. At the same time, the second motor 118 drives the guide wheel 15 to rotate, the guide wheel 15 guides the movement of the vehicle body 11, so that the vehicle body 11 can automatically follow. When the vehicle body 11 moves, the radar 13 and the camera 16 detect the surrounding environment to avoid collisions. After the goods are selected, the barcode of the goods is matched with the scanning end of the barcode display screen 12. The barcode display screen 12 and the controller 117 store and calculate the goods information. The weighing component's weigher 114 weighs the goods through the pad 119 and then verifies it with the goods information to avoid calculation errors, so as to realize automatic calculation and automatic following.

[0062] The movable Bluetooth card fixing structure 4 includes a rotating pressure plate 41, a plug sleeve 42, a second pressure sensor 43, and a servo motor 44. The servo motor 44 and the plug sleeve 42 are fixedly installed on the side wall of the barcode display screen 12. The second pressure sensor 43 is installed at the bottom of the plug sleeve 42, and the sensing end of the second pressure sensor 43 is located at the bottom of the plug sleeve 42. The driving end of the servo motor 44 is fixedly connected to the rotating pressure plate 41. The outer wall of the movable Bluetooth card 113 is inserted into the inner wall of the plug sleeve 42. The bottom of the movable Bluetooth card 113 is in contact with the sensing end of the second pressure sensor 43, and the bottom of the rotating pressure plate 41 is in contact with the top of the movable Bluetooth card 113.

[0063] When the vehicle body 11 moves to the supermarket entrance access control, the servo motor 44 of the movable Bluetooth card fixing structure 4 drives the rotating pressure plate 41 to rotate. The rotating pressure plate 41 opens the top of the insertion sleeve 42, and the movable Bluetooth card 113 is taken out from the insertion sleeve 42. When the vehicle body 11 moves to the supermarket exit access control, the controller 117 controls the first motor 19 and the second motor 118 to lock. The blocking component 5 blocks the top of the vehicle body 11, and the vehicle body 11 is in an inaccessible state. Then, the movable Bluetooth card 113 is inserted into the insertion sleeve 42. The second pressure sensor 43 senses the pressure value and the servo motor 44 presses the rotating pressure plate 41 into the insertion sleeve 42 to prevent the movable Bluetooth card 113 from being taken away without permission. Then, the barcode display screen 12 issues a settlement instruction. After settlement, the first motor 19 and the controller 117 of the drive component following the shopping cart 1 stop, and the first motor 19 and the controller 117 are in a free movement state, which is convenient for storing the movable Bluetooth card 113.

[0064] The original positioning structure 2 includes a positioning seat 21, an electric push rod 22, a plug-in block 23, a first pressure sensor 24, and a plug-in hole 25. The electric push rod 22 is fixedly installed at the bottom of the vehicle body 11. The drive end of the electric push rod 22 is fixedly connected to the plug-in block 23, and the first pressure sensor 24 is installed in the mounting hole of the plug-in block 23. The positioning seat 21 is fixedly installed on the ground at the parking point. The positioning seat 21 has a plug-in hole 25, and the plug-in hole 25 is slidably connected to the outer wall of the plug-in block 23. When the plug-in block 23 and the plug-in hole 25 are plugged in, the bottom of the first pressure sensor 24 contacts the bottom of the plug-in hole 25.

[0065] Before the customer pushes the cart 11 to the parking point after checkout, the blocking component 5 remains in a blocked state. When the cart 11 moves to the parking point, the electric push rod 22 drives the plug block 23 to move into the plug hole 25 of the positioning seat 21. When the first pressure sensor 24 contacts the bottom of the plug hole 25, the first pressure sensor 24 senses the parking signal. The blocking component 5 opens the top of the cart 11. The blocking component 5 and the original positioning structure 2 work together to facilitate the customer's control to send the shopping cart to the parking point without the need for other people to collect and organize it. When the weighing device 114 senses that the vertical is zero, the electric push rod 22 drives the plug block 23 to move. The plug block 23 separates from the plug hole 25 and easily returns to the free state with the shopping cart 1.

[0066] The shielding assembly 5 includes a third motor 51, a conveyor belt 52, a rotating rod 53, and a material handling port 54. The rotating rod 53 is rotatably connected to the inner wall of the vehicle body 11 via a bearing, and the rotating rod 53 is rotatably connected to the inner wall of the conveyor belt 52. The upper rotating rod 53 is located on the inner wall of the vehicle body 11, and the lower rotating rod 53 is located below the horizontal fixed plate 116. The conveyor belt 52 surrounds the weighing assembly, and the conveyor belt 52 has a material handling port 54 for picking up and placing goods. The third motor 51 is fixedly connected to the side wall of the vehicle body 11, and the third motor 51 is fixedly connected to one of the rotating rods 53.

[0067] After settlement, the third motor 51 of the shielding component 5 drives the rotating rod 53 to rotate, the rotating rod 53 drives the conveyor belt 52 to rotate, and the conveyor belt 52 drives the material picking port 54 to move into the cart body 11. The solid part of the conveyor belt 52 blocks the top of the cart body 11 to prevent the loss of goods after settlement. At the same time, the shielding component 5 and the original position positioning structure 2 make it easy to control the customer to send the shopping cart to the parking point without the need for other people to collect and sort it.

[0068] When the shopping cart is parked at the parking point, the third motor 51 of the shielding component 5 drives the rotating rod 53 to rotate, the rotating rod 53 drives the conveyor belt 52 to rotate, the conveyor belt 52 drives the material retrieval port 54 to move into the cart body 11, and the conveyor belt 52 drives the material retrieval port 54 to move to the top of the cart body 11, opening the top of the cart body 11 for easy retrieval of goods after parking, and the top of the cart body 11 is in the open state when shopping.

[0069] A method for using an automatically calculating shopping cart includes the following steps:

[0070] Step 1: When the vehicle body 11 moves to the supermarket entrance access control, the third motor 51 of the blocking component 5 drives the rotating rod 53 to rotate, the rotating rod 53 drives the conveyor belt 52 to rotate, the conveyor belt 52 drives the material picking port 54 to move into the vehicle body 11, the conveyor belt 52 drives the material picking port 54 to move to the top of the vehicle body 11, opening the top of the vehicle body 11, the servo motor 44 of the movable Bluetooth card fixing structure 4 drives the rotating pressure plate 41 to rotate, the rotating pressure plate 41 opens the top of the plug sleeve 42;

[0071] Step Two: Remove the movable Bluetooth card 113 from the following sensing component. The controller 117 of the control component activates the barcode display screen 12, radar 13, drive wheel 14, camera 16, access control sensing component 17, fixed Bluetooth card 18, movable Bluetooth card 113, first motor 19, weighing device 114, controller 117, and blocking component 5. The third motor 51 of the blocking component 5 drives the rotating rod 53 to rotate, which in turn drives the conveyor belt 52 to rotate. The conveyor belt 52 moves the material inlet 54 into the vehicle body 11. The conveyor belt 52 then moves the material inlet 54 to the top of the vehicle body 11. The blocking component 5 opens the top of the vehicle body 11. The movable Bluetooth card 113 and fixed Bluetooth card 18 cooperate to provide a following signal to the controller 117. The controller 117 controls the first motor 19 and the second motor 118. 19 drives the first bevel gear 111 to rotate, the first bevel gear 111 drives the second bevel gear 112 to rotate, the second bevel gear 112 drives the horizontal shaft 110 to rotate, the horizontal shaft 110 drives the roller of the drive wheel 14 to rotate, the drive wheel 14 drives the vehicle body 11 to move, at the same time, the second motor 118 drives the guide wheel 15 to rotate, the guide wheel 15 guides the movement of the vehicle body 11, so that the vehicle body 11 can automatically follow. When the vehicle body 11 moves, the radar 13 and the camera 16 detect the surrounding environment to avoid collisions. After the goods are selected, the barcode of the goods is matched with the scanning end of the barcode display screen 12. The barcode display screen 12 and the controller 117 store and calculate the goods information. The weighing component's weigher 114 weighs the goods through the pad 119 and then verifies it with the goods information to avoid calculation errors, so as to realize automatic calculation and automatic following.

[0072] Step 3: When the vehicle body 11 moves to the supermarket exit access control, the controller 117 controls the first motor 19 and the second motor 118 to lock, and the vehicle body 11 is in an inaccessible state. Then, the active Bluetooth card 113 is inserted into the plug sleeve 42. The second pressure sensor 43 senses the pressure value and the servo motor 44 presses the rotating pressure plate 41 into the plug sleeve 42 to prevent the active Bluetooth card 113 from being taken away without permission. The third motor 51 of the blocking component 5 drives the rotating rod 53 to rotate. The rotating rod 53 drives the conveyor belt 52 to rotate. The conveyor belt 52 drives the material dispensing port 54 to move into the vehicle body 11. The solid part of the conveyor belt 52 seals the top of the vehicle body 11 to prevent the loss of goods after checkout. At the same time, it is convenient to control the customer to send the shopping cart to the parking point without the need for other people to collect and sort it. Then, the barcode display screen 12 sends a checkout command. After checkout, the first motor 19 and the controller 117 of the drive component following the shopping cart 1 stop, and the first motor 19 and the controller 117 are in a free movement state.

[0073] Step 4: The customer pushes the cart body 11 to move. When the cart body 11 moves to the parking point, the electric push rod 22 drives the plug block 23 to move into the plug hole 25 of the positioning seat 21. When the first pressure sensor 24 contacts the bottom of the plug hole 25, the first pressure sensor 24 senses the parking signal. The shielding component 5 opens the top of the cart body 11, making it easy for the customer to send the shopping cart to the parking point without the need for other people to collect and organize it.

[0074] Step 5: The third motor 51 of the shielding component 5 drives the rotating rod 53 to rotate, the rotating rod 53 drives the conveyor belt 52 to rotate, the conveyor belt 52 drives the material picking port 54 to move into the vehicle body 11, the conveyor belt 52 drives the material picking port 54 to the top of the vehicle body 11, opening the top of the vehicle body 11 for easy retrieval of goods after parking. When the weighing device 114 senses that the vertical position is zero, the electric push rod 22 drives the plug block 23 to move, and the plug block 23 separates from the plug hole 25.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for using a shopping cart with automatic calculation capabilities, characterized in that, Includes the following steps: Step 1: When the vehicle body (11) moves to the supermarket entrance access control, the third motor (51) of the shielding component (5) drives the rotating rod (53) to rotate, the rotating rod (53) drives the conveyor belt (52) to rotate, the conveyor belt (52) drives the material pick-up port (54) to move into the vehicle body (11), the conveyor belt (52) drives the material pick-up port (54) to move to the top of the vehicle body (11), opening the top of the vehicle body (11), the servo motor (44) of the active Bluetooth card fixing structure (4) drives the rotating pressure plate (41) to rotate, the rotating pressure plate (41) opens the top of the plug sleeve (42); Step 2: Take out the active Bluetooth card (113) of the following sensing component. The controller (117) of the control component starts the barcode display screen (12), radar (13), drive wheel (14), camera (16), access control sensing component (17), fixed Bluetooth card (18), active Bluetooth card (113), first motor (19), weighing device (114), controller (117), and shielding component (5). The third motor (51) of the shielding component (5) drives the rotating rod (53) to rotate. The rotating rod (53) drives the conveyor belt (52) to rotate. The conveyor belt (52) drives the material pick-up port (54) to move into the vehicle body (11). The conveyor belt (52) drives the material pick-up port (54) to move to the top of the vehicle body (11). The shielding component (5) opens the top of the vehicle body (11). The active Bluetooth card (113) and fixed Bluetooth card (18) cooperate to give the controller (117) a following signal. The controller (117) controls the first motor (19) and the second motor ( 118), the first motor (19) drives the first bevel gear (111) to rotate, the first bevel gear (111) drives the second bevel gear (112) to rotate, the second bevel gear (112) drives the horizontal shaft (110) to rotate, the horizontal shaft (110) drives the roller of the drive wheel (14) to rotate, the drive wheel (14) drives the vehicle body (11) to move, at the same time, the second motor (118) drives the guide wheel (15) to rotate, the guide wheel (15) guides the movement of the vehicle body (11), realizing the vehicle The vehicle (11) automatically follows. When the vehicle (11) moves, the radar (13) and camera (16) detect the surrounding environment to avoid collisions. After the product is selected, the product barcode is matched with the scanning end of the barcode display screen (12). The barcode display screen (12) and controller (117) store and calculate the product information. The weighing device (114) of the weighing component weighs the product through the pad (119) and then verifies it with the product information to avoid calculation errors and realize automatic calculation and automatic following. Step 3: When the vehicle body (11) moves to the supermarket exit access control, the controller (117) controls the first motor (19) and the second motor (118) to lock, and the vehicle body (11) is in an inoperable state. Then, the active Bluetooth card (113) is inserted into the plug sleeve (42). The second pressure sensor (43) senses the pressure value and the servo motor (44) presses the rotating pressure plate (41) into the plug sleeve (42) to prevent the active Bluetooth card (113) from being taken away without permission. The third motor (51) of the shielding component (5) drives the rotating rod (53) to rotate. The rotating rod (53) drives the rotating rod to rotate. The conveyor belt (52) rotates, and the conveyor belt (52) drives the material pick-up port (54) to move into the vehicle body (11). The solid part of the conveyor belt (52) seals the top of the vehicle body (11) to prevent the loss of goods after settlement. At the same time, it is convenient to control the customer to send the shopping cart to the parking point without the need for other people to collect and sort. Then, the barcode display screen (12) sends a settlement instruction. After settlement, the first motor (19) and controller (117) of the drive component following the shopping cart (1) stop, and the first motor (19) and controller (117) are in a free movement state. Step 4: The customer pushes the cart (11) to move. When the cart (11) moves to the parking point, the electric push rod (22) drives the plug block (23) to move into the plug hole (25) of the positioning seat (21). When the first pressure sensor (24) contacts the bottom of the plug hole (25), the first pressure sensor (24) senses the parking signal. The shielding component (5) opens the top of the cart (11) to facilitate the customer to send the shopping cart to the parking point without the need for other people to collect and organize it. Step 5: The third motor (51) of the shielding component (5) drives the rotating rod (53) to rotate, the rotating rod (53) drives the conveyor belt (52) to rotate, the conveyor belt (52) drives the material pick-up port (54) to move into the vehicle body (11), the conveyor belt (52) drives the material pick-up port (54) to move to the top of the vehicle body (11), opening the top of the vehicle body (11) to facilitate the retrieval of goods after parking. When the weighing device (114) senses that the vertical position is zero, the electric push rod (22) drives the plug-in block (23) to move, and the plug-in block (23) separates from the plug-in hole (25).

2. An automatically calculating shopping cart, employing the method of using the automatically calculating shopping cart as described in claim 1, including following the shopping cart (1), characterized in that: The following shopping cart (1) includes a cart body (11), a drive assembly, a position sensing assembly, a control assembly, a weighing assembly, and a following sensing assembly. The drive assembly is connected to the bottom of the cart body (11), the control assembly and the following sensing assembly are connected to the cart body (11), the weighing assembly is fixedly installed on the inner wall of the cart body (11), the position sensing assembly is installed on the side wall of the following shopping cart (1), and the control assembly is electrically connected to the drive assembly, the weighing assembly, the position sensing assembly and the following sensing assembly. The control component has a movable Bluetooth card fixing structure (4) connected to its side wall, and the movable Bluetooth card fixing structure (4) is connected to the follow-sensing component; A handle (3) is fixedly connected to the left side wall of the vehicle body (11); The bottom of the vehicle body (11) is fixedly connected to the original positioning structure (2), and the original positioning structure (2) is connected to the ground at the parking point; The vehicle body (11) is connected to a shielding component (5) for sealing the top of the vehicle body (11) after settlement.

3. The automatically calculating shopping cart according to claim 2, characterized in that, The drive assembly includes a drive wheel (14), a guide wheel (15), a first motor (19), a horizontal shaft (110), a first bevel gear (111), a second bevel gear (112), and a second motor (118). The first motor (19) and the second motor (118) are fixedly installed at the bottom left and right ends of the vehicle body (11). The first motor (19) is fixedly connected to the first bevel gear (111) at its drive end. The first bevel gear (111) is meshed with the second bevel gear (112). The horizontal shaft (110) is fixedly installed in the mounting hole of the second bevel gear (112). The front and rear ends of the horizontal shaft (110) are fixedly connected to the rollers of the drive wheel (14). The connecting frame of the drive wheel (14) is symmetrically fixedly installed on the front and rear sides of the left end of the vehicle body (11). The second motor (118) is fixedly connected to the guide wheel (15) at its drive end. The guide wheel (15) is located at the middle of the bottom right end of the vehicle body (11).

4. The automatically calculating shopping cart according to claim 3, characterized in that, The position sensing component includes a radar (13), a camera (16) and an access control sensing component (17). The radar (13) is installed in the mounting hole on the side wall of the vehicle body (11), the access control sensing component (17) is fixedly installed on the right side of the front and rear side walls of the vehicle body (11), and the camera (16) is fixedly installed on the upper side of the right side wall of the vehicle body (11).

5. The automatically calculating shopping cart according to claim 4, characterized in that, The control components include a barcode display screen (12), a battery (115), and a controller (117). The battery (115) and the controller (117) are fixedly installed at the bottom of the vehicle body (11), and the barcode display screen (12) is fixedly installed on the upper left side wall of the vehicle body (11).

6. The automatically calculating shopping cart according to claim 5, characterized in that, The weighing assembly includes a weighing device (114), a horizontal fixing plate (116), and a pad (119). The front end of the horizontal fixing plate (116) is fixedly connected to the inner wall of the vehicle body (11). The weighing device (114) is fixedly installed on the top of the horizontal fixing plate (116), and the pad (119) is fixedly installed on the sensing end of the weighing device (114).

7. The automatically calculating shopping cart according to claim 6, characterized in that, The following sensing component includes a fixed Bluetooth card (18) and a movable Bluetooth card (113). The fixed Bluetooth card (18) is fixedly installed on the right side wall of the vehicle body (11). The fixed Bluetooth card (18) is wirelessly connected to the movable Bluetooth card (113), and the movable Bluetooth card (113) is engaged with the movable Bluetooth card fixing structure (4).

8. The automatically calculating shopping cart according to claim 7, characterized in that, The active Bluetooth card fixing structure (4) includes a rotating pressure plate (41), a plug sleeve (42), a second pressure sensor (43), and a servo motor (44). The servo motor (44) and the plug sleeve (42) are fixedly installed on the side wall of the barcode display screen (12). The second pressure sensor (43) is installed at the bottom of the plug sleeve (42), and the sensing end of the second pressure sensor (43) is located at the bottom of the plug sleeve (42). The driving end of the servo motor (44) is fixedly connected to the rotating pressure plate (41). The outer wall of the active Bluetooth card (113) is inserted into the inner wall of the plug sleeve (42). The bottom of the active Bluetooth card (113) is in contact with the sensing end of the second pressure sensor (43), and the bottom of the rotating pressure plate (41) is in contact with the top of the active Bluetooth card (113).

9. The automatically calculating shopping cart according to claim 8, characterized in that, The original positioning structure (2) includes a positioning seat (21), an electric push rod (22), a plug-in block (23), a first pressure sensor (24), and a plug-in hole (25). The electric push rod (22) is fixedly installed at the bottom of the vehicle body (11). The drive end of the electric push rod (22) is fixedly connected to the plug-in block (23), and the first pressure sensor (24) is installed in the mounting hole of the plug-in block (23). The positioning seat (21) is fixedly installed on the ground at the parking point. The positioning seat (21) has a plug-in hole (25), and the plug-in hole (25) is slidably connected to the outer wall of the plug-in block (23). When the plug-in block (23) and the plug-in hole (25) are plugged in, the bottom of the first pressure sensor (24) contacts the bottom of the plug-in hole (25).

10. The automatically calculating shopping cart according to claim 9, characterized in that, The shielding assembly (5) includes a third motor (51), a conveyor belt (52), a rotating rod (53), and a material pick-up port (54). The rotating rod (53) is rotatably connected to the inner wall of the vehicle body (11) via a bearing, and the rotating rod (53) is rotatably connected to the inner wall of the conveyor belt (52). The upper rotating rod (53) is located on the inner wall of the vehicle body (11), and the lower rotating rod (53) is located below the horizontal fixed plate (116). The conveyor belt (52) surrounds the weighing assembly. The conveyor belt (52) has a material pick-up port (54) for picking up and placing goods. The third motor (51) is fixedly connected to the side wall of the vehicle body (11), and the third motor (51) is fixedly connected to one of the rotating rods (53).

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