Vehicle type display device

Abstract

The utility model relates to the technical field of automobile production, in particular to an automobile type display device. Comprising an RFID tag, a visual identification device, an RFID write-in device, an RFID read head, a display and a controller, the RFID tag is arranged on the transportation assembly, the visual identification device and the RFID write-in device are both arranged at the initial station, and the RFID read head and the display are both arranged at the working station. According to the utility model, the visual identification device identifies an identity code, the controller matches the identity code with the vehicle type information, the controller writes the identity code and the vehicle type information into the RFID tag through the RFID write-in device, and the RFID read head at the working station reads the information stored in the RFID tag. And the identity code and the vehicle type information are displayed on the display through the controller, so that the vehicle type can be automatically identified.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production, and more specifically, to a vehicle type display device. Background Art

[0002] In the automobile assembly line production, the parts installation positions often involve that employees need to distinguish the specific vehicle type, derivative differences and other information of the incoming vehicle to ensure the correct parts are installed on the incoming vehicle accurately. There are mainly two traditional methods for distinguishing vehicle types. One is to rely on manual identification of the vehicle identification number (VIN) card information of the incoming vehicle, commonly known as the blue card, which marks information such as the vehicle manufacturer, production year, vehicle type, body type and code, engine code and assembly location of the vehicle. At this time, it is necessary to manually take the blue card, identify the specific vehicle type and specific derivative (MTOC information), and check the derivative table of the specific vehicle type to confirm the parts / assembly parts to be installed. The operation process is time-consuming and the process is complex, which is not conducive to the rapid automated production of the production line. The other is to install a vision detection device at the position. The vision device takes pictures, extracts features, identifies the differences of the incoming vehicle, compares with the existing database, and displays the identified vehicle type and derivative on the screen. For each new vehicle type and new derivative, it is necessary to debug and import feature points.

[0003] For the first method, relying on manual confirmation of the vehicle type and derivative of the incoming vehicle requires skilled post technicians to identify the incoming vehicle and the vehicle type derivative management table of the team leader. There are many steps, and the checking process is prone to errors, with low automation. For the second method, for the import of new vehicle types and different derivatives of the same vehicle type, it is necessary to conduct vision debugging, import feature points, and can be put into use only after the test is stable. And when the existing vision photography position cannot cover, it is also necessary to add hardware such as a vision camera. The debugging requires professional vision algorithm engineers, and the debugging cost is high. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of low automation and high cost in identifying vehicle types, and provide a vehicle type display device that can automatically identify vehicle types and reduce costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A vehicle type display device includes a transportation component for transporting workpieces with identification codes, an RFID tag, a visual recognition device for reading identification codes, an RFID writing device, an RFID reader head, a display, and a controller for storing vehicle type information corresponding to the identification codes. The RFID tag is provided on the transportation component. An initial station and working stations are sequentially provided along the automobile production line. The visual recognition device and the RFID writing device are both provided at the initial station, and the RFID reader head and the display are both provided at the working stations. The visual recognition device, the RFID writing device, the RFID reader head, and the display are all communicatively connected to the controller.

[0007] According to the above technical means, for a vehicle type display device provided by the present utility model, a workpiece with an identification code is placed on the transportation component, and the transportation component transports along the production line. The workpiece first passes through the initial station. After the visual recognition device at the initial station recognizes the identification code on the workpiece, the identification code is imported into the controller. The controller matches the identification code with the vehicle type information, and both the identification code and the vehicle type information are written into the RFID tag through the RFID writing device. Then, the transportation component continues to move to the working station. The RFID reader head reads the information stored in the RFID tag, and the identification code and the vehicle type information are displayed on the display through the controller, thereby enabling automatic vehicle type recognition. The staff at the working station can identify the specific information of the workpiece through the display, saving operation time. By identifying the identity of the workpiece through the identification code, there is no need to use a vision camera to identify the specific shape of the workpiece, which can reduce costs.

[0008] Further, the working station is provided with a working position sensor for detecting whether a workpiece passes through. The working position sensor is communicatively connected to the controller, and the controller is provided with an alarm component. When the working position sensor detects that the transportation component reaches the working station, the alarm component gives an alarm to inform the staff that the workpiece has reached the working station.

[0009] Further, the transportation component includes an AGV cart, and the AGV cart is communicatively connected to the controller. By setting the AGV cart, the transportation component can automatically transport the workpiece along the production line, further realizing automation. When the working position sensor detects that the transportation component reaches the working station, the controller controls the AGV cart to stop moving, and the workpiece can be stably transported to the working station.

[0010] Furthermore, at least two groups of working position sensors are provided at intervals. The AGV cart drives the workpiece to move quickly. When the first group of working position sensors detects the entry of the transportation component, the controller controls the AGV cart to decelerate. When the second group of working position sensors detects the transportation component, the AGV cart stops, enabling the position of the workpiece transported each time to be basically the same.

[0011] Furthermore, an initial position sensor for detecting whether a workpiece passes through is provided at the initial work station, and the initial position sensor is communicatively connected to the controller. By setting the initial position sensor, it can be recognized when the transportation component enters the initial work station, enabling the vision recognition device and the RFID writing device to start working only when the transportation component enters, which can reduce the activation duration of the vision recognition device and the RFID writing device, thereby reducing costs.

[0012] Furthermore, a lifting frame is provided at the initial work station, and the initial position sensor is provided on the lifting frame. The initial position sensor is lifted so that it does not work when an empty transportation component enters, and the vision recognition device and the RFID writing device are activated only when the initial position sensor detects the entry of the workpiece.

[0013] Furthermore, the vision recognition device is provided on the lifting frame, and the recognition direction of the vision recognition device faces the top of the transportation component; the RFID tag is provided at the bottom of the transportation component, and the recognition direction of the RFID writing device faces the bottom of the transportation component. The recognition direction of the vision recognition device faces downward to recognize the identification code on the workpiece from top to bottom, and the recognition direction of the RFID writing device faces upward to recognize the RFID tag at the bottom of the transportation component from bottom to top, avoiding the overlap of the recognition ranges of the vision recognition device and the RFID writing device, thereby avoiding interference between the vision recognition device and the RFID writing device.

[0014] Furthermore, a terminal work station is provided along the production line. The working station is located between the initial work station and the terminal work station, and an RFID new reading and writing head is provided at the terminal work station. After the transportation component reaches the terminal work station, the information in the RFID tag is cleared by the RFID new reading and writing head, enabling the RFID tag to be recycled.

[0015] Furthermore, a terminal position sensor for detecting whether a workpiece passes through is also provided at the terminal work station, and both the RFID new reading and writing head and the terminal position sensor are communicatively connected to the controller. By setting the terminal position sensor, it can be recognized when the transportation component enters the terminal work station, enabling the RFID new reading and writing head to start working only when the transportation component enters, which can reduce the activation duration of the RFID new reading and writing head, thereby reducing costs.

[0016] Furthermore, clamping mechanisms for fixing the transport assembly are provided at both the initial work station and the end work station, and the clamping mechanisms are communicatively connected to the controller. By providing the clamping mechanisms to clamp the transport assembly, after the RFID writing device or the new RFID reading and writing head has completed its work, the clamping mechanisms are released to allow the transport assembly to move, thereby ensuring that the RFID writing device or the new RFID reading and writing head has completed its work.

[0017] Compared with the prior art, the beneficial effects are:

[0018] 1. For a vehicle type display device provided by the present utility model, an identity code is recognized by a visual recognition device without using a visual camera to recognize the specific shape of a workpiece, which can reduce costs. The controller matches the identity code with vehicle type information, and both the identity code and the vehicle type information are written into an RFID tag by an RFID writing device. The RFID reader at the work station reads the information stored in the RFID tag, and the identity code and the vehicle type information are displayed on a display through the controller, thereby enabling automatic vehicle type recognition.

[0019] 2. For a vehicle type display device provided by the present utility model, by providing a work position sensor, an initial position sensor, and an end position sensor, it is convenient to detect the position of the transport assembly; by providing a clamping mechanism, it is convenient to position the transport assembly at the required position, thereby ensuring that the RFID writing device or the new RFID reading and writing head has completed its work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the vehicle type display device of the present utility model;

[0021] Figure 2 is a schematic diagram of the structure of the initial work station in the present utility model;

[0022] Figure 3 is a schematic diagram of the structure of the transport assembly in the present utility model;

[0023] Figure 4 is a schematic diagram of the structure of the work station in the present utility model;

[0024] Figure 5 is a schematic diagram of the structure of the end work station in the present utility model.

[0025] Among them, the illustration marks are explained as follows: 1. Assembly line; 101. Initial station; 102. Working station; 103. End station; 2. Transportation component; 3. RFID tag; 4. Visual recognition device; 5. RFID writing device; 6. RFID reader; 7. Display; 8. Controller; 9. Working position sensor; 10. Initial position sensor; 11. Lifting frame; 12. New RFID reading and writing head; 13. End position sensor; 14. Clamping mechanism. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The present invention will be described in one of the embodiments in conjunction with the specific implementation manners. Among them, the accompanying drawings are only for illustrative purposes and show only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation to the present invention; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0027] In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. In addition, if there is a description involving "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time.

[0028] Embodiment 1

[0029] As Figures 1 to 5As shown in the figure, this embodiment provides a vehicle model display device, which includes a transportation component 2 for transporting workpieces with identification codes, an RFID tag 3, a visual recognition device 4 for reading identification codes, an RFID writing device 5, an RFID reader 6, a display 7, and a controller 8 for storing vehicle model information corresponding to the identification codes. The RFID tag 3 is provided on the transportation component 2. An initial station 101 and a working station 102 are sequentially provided along the automobile production line 1. The visual recognition device 4 and the RFID writing device 5 are both provided at the initial station 101, and the RFID reader 6 and the display 7 are both provided at the working station 102. The visual recognition device 4, the RFID writing device 5, the RFID reader 6, and the display 7 are all communicatively connected to the controller 8. When the transportation component 2 is located at the initial station 101, the recognition direction of the visual recognition device 4 faces the identification code, and the recognition direction of the RFID writing device 5 faces the RFID tag 3; when the transportation component 2 is located at the working station 102, the recognition direction of the RFID reader 6 faces the RFID tag 3.

[0030] According to the above technical means, for a vehicle model display device provided by the present utility model, a workpiece with an identification code is placed on the transportation component 2, and the transportation component 2 is transported along the production line 1. There is a guide rail on the production line 1, and the transportation component 2 travels on the guide rail. The workpiece first passes through the initial station 101. After the visual recognition device 4 at the initial station 101 recognizes the identification code on the workpiece, the identification code is imported into the controller 8. The controller 8 matches the identification code with the vehicle model information, and the controller 8 writes both the identification code and the vehicle model information into the RFID tag 3 through the RFID writing device 5. Then, the transportation component 2 is allowed to continue moving to the working station 102. The RFID reader 6 reads the information stored in the RFID tag 3, and the identification code and the vehicle model information are displayed on the display 7 through the controller 8, so that the vehicle model can be automatically recognized. The staff at the working station 102 can recognize the specific information of the workpiece through the display 7, saving operation time. By identifying the identity of the workpiece through the identification code, there is no need to use a vision camera to identify the specific shape of the workpiece, which can reduce costs.

[0031] In this embodiment, the workpiece is an automobile body, the identification code is the VIN of the automobile, and the vehicle model information is MTOC information, that is, the combination code of the vehicle model and the engine characteristics, the vehicle model replacement code, the vehicle model year code, the sales area characteristic code, the transmission system characteristic code, the vehicle series, etc., and the vehicle model option code.

[0032] Embodiment 2

[0033] A vehicle model display device proposed in this embodiment, on the basis of Embodiment 1, in this embodiment, as Figure 3As shown in the figure, a working position sensor 9 for detecting whether a workpiece passes through is provided at the working station 102. In this embodiment, the working position sensor 9 uses an optoelectronic switch, and the working position sensor 9 is communicatively connected to the controller 8. The controller 8 is provided with an alarm component, and the alarm component can be set as a buzzer or an alarm light. When the working position sensor 9 detects that the transport component 2 arrives at the working station 102, the alarm component gives an alarm to inform the staff that the workpiece has arrived at the working station 102.

[0034] The transport component 2 includes an AGV cart. An AGV is provided along the automobile production line 1. The AGV cart automatically moves along the production line 1 driven by the AGV, and the AGV cart is communicatively connected to the controller 8. By arranging the AGV cart, the transport component 2 can automatically transport the workpiece along the production line 1, further realizing automation. When the working position sensor 9 detects that the transport component 2 arrives at the working station 102, the controller 8 controls the AGV cart to stop moving, and can stably transport the workpiece to the working station 102.

[0035] At least two groups of working position sensors 9 are provided at intervals. The AGV cart drives the workpiece to move quickly. When the first group of working position sensors 9 detects the entry of the transport component 2, the controller 8 controls the AGV cart to decelerate. When the second group of working position sensors 9 detects the transport component 2, the AGV cart stops, and the position of the workpiece transported each time can be made basically the same.

[0036] There are multiple working stations 102. After storing the information in the RFID tag 3, through the RFID reader 6 on the working station 102, the information of the workpiece can be respectively displayed at multiple working stations 102. Since the cost of the RFID reader 6 is lower than that of the visual recognition device 4, the cost can be further reduced.

[0037] Embodiment 3

[0038] A vehicle type display device proposed in this embodiment, based on Embodiment 1 or Embodiment 2, in this embodiment, as Figure 2 shown, an initial position sensor 10 for detecting whether a workpiece passes through is provided at the initial station 101. In this embodiment, the initial position sensor 10 uses an optoelectronic switch, and the initial position sensor 10 is communicatively connected to the controller 8. By arranging the initial position sensor 10, it can be recognized when the transport component 2 enters the initial station 101, and the visual recognition device 4 and the RFID writing device 5 start to work only when the transport component 2 enters, which can reduce the opening duration of the visual recognition device 4 and the RFID writing device 5, thereby reducing the cost.

[0039] At the initial working station 101, there is a lifting frame 11, and the initial position sensor 10 is arranged on the lifting frame 11. Since the height of the workpiece is higher than that of the transportation component 2, the initial position sensor 10 is lifted. When the empty transportation component 2 enters, it does not work, and the vision recognition device 4 and the RFID writing device 5 are only turned on when the initial position sensor 10 detects the entry of the workpiece.

[0040] As Figure 2 and Figure 5 shown, the vision recognition device 4 is arranged on the lifting frame 11. In this embodiment, the vision recognition device 4 is set as a vision camera, and the recognition direction of the vision camera faces the top of the transportation component 2; the RFID tag 3 is arranged at the bottom of the transportation component 2, and the recognition direction of the RFID writing device 5 faces the bottom of the transportation component 2. Let the recognition direction of the vision camera face downward, and identify the identification code on the workpiece from top to bottom. Let the recognition direction of the RFID writing device 5 face upward, and identify the RFID tag 3 at the bottom of the transportation component 2 from bottom to top, so as to avoid the overlap of the recognition ranges of the vision camera and the RFID writing device 5, and thus avoid mutual interference between the vision camera and the RFID writing device 5.

[0041] As Figure 1 and Figure 4 shown, along the assembly line 1, there is also a terminal working station 103. The working station 102 is located between the initial working station 101 and the terminal working station 103. At the terminal working station 103, there is an RFID new reading and writing head 12. After the transportation component 2 reaches the terminal working station 103, the information in the RFID tag 3 is cleared through the RFID new reading and writing head 12, so that the RFID tag 3 can be recycled.

[0042] At the terminal working station 103, there is also a terminal position sensor 13 for detecting whether there is a workpiece passing through. In this embodiment, the terminal position sensor 13 uses a photoelectric switch. Both the RFID new reading and writing head 12 and the terminal position sensor 13 are communicatively connected to the controller 8. By setting the terminal position sensor 13, when the transportation component 2 enters the terminal working station 103, it can be recognized, and the RFID new reading and writing head 12 only starts to work when the transportation component 2 enters, which can reduce the opening duration of the RFID new reading and writing head 12, thereby reducing costs.

[0043] As Figure 2 and Figure 4As shown, clamping mechanisms 14 for fixing the transport assembly 2 are provided at both the initial station 101 and the end station 103, and the clamping mechanism 14 is communicatively connected to the controller 8. By providing the clamping mechanism 14 to clamp the transport assembly 2, after the RFID writing device 5 or the RFID new reading and writing head 12 has completed its operation, the clamping mechanism 14 is released to allow the transport assembly 2 to move, thereby ensuring that the RFID writing device 5 or the RFID new reading and writing head 12 has completed its operation. In this embodiment, the clamping mechanism 14 includes two rotating cylinders disposed opposite each other on the assembly line 1 and clamping plates respectively connected to the output ends of the two rotating cylinders. During normal operation, the rotating cylinders drive the clamping plates to rotate to avoid the transport assembly 2, and when fixation is required, the rotating cylinders drive the clamping plates to rotate in the reverse direction, and the two clamping plates clamp and fix the transport assembly 2.

[0044] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] Obviously, the above embodiments of the present invention are merely examples given for clearly explaining the present invention, and are not limitations on the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle model display device, characterized in that, It includes a transportation component (2) for transporting workpieces with identification codes, an RFID tag (3), a visual recognition device (4) for reading identification codes, an RFID writing device (5), an RFID reader head (6), a display (7), and a controller (8) that stores vehicle model information corresponding to the identification codes. The RFID tag (3) is provided on the transportation component (2). Along the automobile production line (1), an initial station (101) and a working station (102) are successively provided. The visual recognition device (4) and the RFID writing device (5) are both provided at the initial station (101), and the RFID reader head (6) and the display (7) are both provided at the working station (102). The visual recognition device (4), the RFID writing device (5), the RFID reader head (6), and the display (7) are all communicatively connected to the controller (8).

2. The vehicle model display device according to claim 1, wherein A working position sensor (9) for detecting whether a workpiece passes through is provided at the working station (102). The working position sensor (9) is communicatively connected to the controller (8), and the controller (8) is provided with an alarm component.

3. The vehicle model display device according to claim 2, characterized in that, The transportation component (2) includes an AGV cart, and the AGV cart is communicatively connected to the controller (8).

4. The vehicle model display device according to claim 3, wherein At least two groups of the working position sensors (9) are provided at intervals.

5. The vehicle model display device according to any one of claims 1 to 4, characterized in that An initial position sensor (10) for detecting whether a workpiece passes through is provided at the initial station (101). The initial position sensor (10) is communicatively connected to the controller (8).

6. The vehicle model display device according to claim 5, wherein A lifting frame (11) is provided at the initial station (101), and the initial position sensor (10) is provided on the lifting frame (11).

7. The vehicle model display device according to claim 6, wherein, The visual recognition device (4) is provided on the lifting frame (11), and the recognition direction of the visual recognition device (4) faces the top of the transportation component (2); the RFID tag (3) is provided at the bottom of the transportation component (2), and the recognition direction of the RFID writing device (5) faces the bottom of the transportation component (2).

8. The vehicle model display device according to any one of claims 1 to 4, characterized in that An end station (103) is further provided along the production line (1). The working station (102) is located between the initial station (101) and the end station (103), and an RFID new reading and writing head (12) is provided at the end station (103).

9. The vehicle model display device according to claim 8, wherein An end position sensor (13) for detecting whether a workpiece passes through is further provided at the end station (103). The RFID new reading and writing head (12) and the end position sensor (13) are both communicatively connected to the controller (8).

10. The vehicle model display device according to claim 9, characterized in that, Clamping mechanisms (14) for fixing the transportation component (2) are provided at both the initial station (101) and the end station (103). The clamping mechanisms (14) are communicatively connected to the controller (8).

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