Optical communication type AGV

Abstract

The utility model belongs to the field of AGV dolly, concretely relates to optical communication type AGV car, including the platform of putting, control module and chassis wheel group, the platform of putting is located at the top of chassis wheel group, control module includes main control PLC, is provided with LAN interface and RS485 interface on main control PLC, the laser radar of setting up in chassis wheel group front and back both ends all are connected LAN interface, the front end and the side of chassis wheel group are provided with the first optical communication module and second optical communication module of connecting RS485 interface respectively, the included angle between first optical communication module and second optical communication module is 90 DEG, control module still electrically connected with power module. Compared with prior art, the utility model discloses high communication efficiency and strong confidentiality, can prevent outside interference or invasion, and positioning accuracy is high, helps to promote production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of AGV (Automated Guided Vehicle) technology, and more specifically, to an optical communication AGV. Background Technology

[0002] An Automated Guided Vehicle (AGV) system is an automated guided transport system consisting of multiple AGVs equipped with electromagnetic or optical guidance devices. AGVs can travel along a pre-defined path, automatically transporting goods or materials between different locations without manual guidance. To ensure the orderly operation of numerous AGV devices in the same area, a communication and scheduling system for the AGV devices needs to be established within the AGV transport system to achieve data exchange and collaborative control between the AGV devices.

[0003] Currently, most AGVs use wireless communication solutions. For example, patent document CN201922345425.7, entitled "Wireless Communication Element, Control Device, and AGV Equipment," discloses a wireless communication element, including a substrate. The substrate has a communication circuit and a LoRa module, with the LoRa module connected to the communication circuit. The substrate has several communication interfaces for connecting to the communication circuit, and the substrate connects to peripheral devices through these interfaces. The document also provides an AGV device that uses the aforementioned control device. This wireless communication element can directly connect to peripheral devices, enabling them to use the LoRa module for wireless data transmission.

[0004] However, in high-tech industries and classified units such as the military, conventional AGV wireless communication solutions are susceptible to interference and intrusion. Point-to-point optical communication, on the other hand, offers superior security and meets the AGV communication requirements in these scenarios. Therefore, it is necessary to develop a reliable and stable optical communication AGV solution. Utility Model Content

[0005] To address the issue that current AGVs on the market use wireless communication solutions, which pose risks of interference and intrusion and do not meet the needs of high-tech industries and military production workshops with high security requirements, we offer optical communication AGVs.

[0006] The optical communication AGV includes a loading platform, a control module, and a chassis wheel assembly. The loading platform is located above the chassis wheel assembly. The control module includes a main control PLC, which is equipped with a LAN interface and an RS485 interface. The lidar located at both ends of the chassis wheel assembly is connected to the LAN interface. The front end and the side of the chassis wheel assembly are respectively equipped with a first optical communication module and a second optical communication module connected to the RS485 interface. The included angle between the first optical communication module and the second optical communication module is 90°. The control module is also electrically connected to a power supply module.

[0007] Furthermore, the placement platform includes a pick-up and place conveyor belt, which is electrically connected to the main control PLC, and the orientation of the pick-up and place conveyor belt is the same as that of the second optical communication module.

[0008] Furthermore, proximity sensors are provided at both the front and rear ends of the pick-and-place conveyor belt, and the proximity sensors are electrically connected to the main control PLC. A protective baffle is provided at the end of the pick-and-place conveyor belt.

[0009] Furthermore, the chassis wheel assembly includes multiple electrically controlled casters, all of which are connected to the chassis controller, which is connected to the LAN interface of the main control PLC.

[0010] Furthermore, the LAN interface of the main control PLC is connected to the lidar and chassis controller via a switch, which is also connected to the external network port at the front end of the chassis wheel assembly.

[0011] Furthermore, the power supply module includes an electrically connected battery pack and a switching power supply, the switching power supply being electrically connected to the main control PLC, the lidar, the first optical communication module, the second optical communication module, and the chassis wheel assembly.

[0012] Furthermore, the front end of the chassis wheel assembly is equipped with a touch screen display, and the bottom is equipped with a speaker. Both the touch screen display and the speaker are electrically connected to the main control PLC.

[0013] Furthermore, the control module and the chassis wheel assembly are both mounted on the chassis base plate, and the storage platform is connected to the top of the chassis base plate via multiple support columns.

[0014] The advantages of this utility model are: 1. AGV control data is transmitted through optical communication modules in two directions, which not only provides strong confidentiality but also offers fast transmission speed. Furthermore, the simultaneous matching of the two optical communication modules with the workstation can assist in positioning, thereby improving operating efficiency.

[0015] 2. The AGV has a built-in conveyor belt that can quickly connect to and carry products or components output from the production line, making it easy to configure and use.

[0016] 3. The components are highly modular, making them easy to assemble and maintain. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of an optical communication AGV vehicle. Figure 2 This is an exploded view of an optical communication AGV vehicle. Figure 3 The circuit schematic of the main control PLC; Figure 4 This is a schematic diagram of the switch connection. Figure 5 The circuit diagram is for the battery pack and the switching power supply. Figure 6 This is a block diagram of the circuit principle of each circuit component in an optical communication AGV vehicle.

[0019] Attached image labels: 1. Main control PLC; 101. LAN interface; 102. RS485 interface; 2. Pick-up and place conveyor belt; 201. Proximity sensor; 202. Protective baffle; 3. Chassis controller; 301. Electric casters; 4. Battery pack; 401. Switching power supply; 5. LiDAR; 601. First optical communication module; 602. Second optical communication module; 603. Fixed optical communication module; 7. Switch; 8. External network port; 9. Touch screen; 10. Speaker; 11. Chassis base plate; 12. Support column. Detailed Implementation

[0020] To address the issue that current AGVs on the market use wireless communication solutions, which pose risks of interference and intrusion and do not meet the needs of high-tech industries and military production workshops with high security requirements, we offer optical communication AGVs.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model 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 this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.

[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0024] like Figure 1-6 As shown, this embodiment provides an optical communication AGV vehicle, including a storage platform, a control module, and a chassis wheel assembly. The storage platform is positioned above the chassis wheel assembly. The control module includes a main control PLC1, which is equipped with a LAN interface 101 and an RS485 interface 102. LiDARs 5 located at both ends of the chassis wheel assembly are connected to the LAN interface 101. A first optical communication module 601 and a second optical communication module 602, connected to the RS485 interface 102, are respectively located at the front and side of the chassis wheel assembly. The angle between the first optical communication module 601 and the second optical communication module 602 is 90°. The control module is also electrically connected to a power supply module. In the production workshop, corresponding to the first optical communication module 601 and the second optical communication module 602, two fixed optical communication modules with a 90° angle can be installed at the AGV's standby position and at positions such as picking up and placing parts, thereby updating the AGV's operating information at any time. On the other hand, since the first optical communication module 601 and the second optical communication module 602 are oriented differently, it is convenient for the AGV to communicate data at different positions, and two-axis positioning can be performed to improve accuracy.

[0025] Among them, the main control PLC1 can use commercially available products with built-in LAN and RS485, such as Mitsubishi FX5U, while the lidar 5 can use XianGong H1E0-02C, and the optical communication module is OPCA-N8. All of the above components are already in use on the market, so their operating principles will not be described in detail.

[0026] The loading platform includes a pick-and-place conveyor belt 2, which is electrically connected to the main control PLC 1. The orientation of the pick-and-place conveyor belt 2 is the same as that of the second optical communication module 602. The pick-and-place conveyor belt 2 facilitates direct docking with the production line, and materials can be automatically transported to the AGV vehicle without the need for workers or robotic arms. It is worth mentioning that in this embodiment, the pick-and-place conveyor belt 2 protrudes outward from the side of the chassis wheel assembly, avoiding interference and conflict caused by the lidar 5 and other equipment on the front of the chassis facing the same direction as the pick-and-place conveyor belt 2.

[0027] Both the front and rear ends of the pick-and-place conveyor belt 2 are equipped with proximity sensors 201, which are electrically connected to the main control PLC 1. A protective baffle 202 is installed at the end of the pick-and-place conveyor belt 2. The proximity sensors 201 and the protective baffle 202 can prevent materials from falling due to excessive operation of the pick-and-place conveyor belt 2, thereby improving the reliability of equipment operation.

[0028] The chassis wheel assembly includes multiple electrically controlled casters 301, each connected to a chassis controller 3. The chassis controller 3 is connected to the LAN interface 101 of the main control PLC 1. In this embodiment, the chassis controller 3 can be a relatively mature product such as the XianGong SRC-880, which facilitates the operation control of the AGV in conjunction with the main control PLC 1.

[0029] The LAN interface 101 of the main control PLC1 is connected to the LiDAR 5 and the chassis controller 3 via a switch 7. The switch 7 is also connected to the external network port 8 at the front of the chassis wheel assembly. The components connected via the switch 7 can be quickly assembled and configured, facilitating maintenance and replacement. The external network port 8 allows staff to connect the AGV vehicle to a computer via a network cable for configuration.

[0030] The power supply module includes a battery pack 4 and a switching power supply 401 that are electrically connected. The switching power supply 401 is electrically connected to the main control PLC 1, the lidar 5, the first optical communication module 601, the second optical communication module 602, and the chassis wheel assembly. The switching power supply 401 can convert the electrical energy supplied by the battery pack 4 into the specifications required by each electrical component to ensure the normal operation of the equipment.

[0031] The front end of the chassis wheel assembly is equipped with a touch screen display 9, and the bottom is equipped with a speaker 10. Both the touch screen display 9 and the speaker 10 are electrically connected to the main control PLC1. The speaker 10 and the touch screen display 9 facilitate the quick setting and confirmation of the AGV's operating status by the staff.

[0032] The control module and chassis wheel assembly are both mounted on the chassis base plate 11. The pick-up and drop-off conveyor belt 2 is connected to the top of the chassis base plate 11 via multiple support columns 12. The chassis base plate 11 and the frame design of the support columns 12 are simple and stable, allowing each component to be stably installed in the AGV.

[0033] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.

Claims

1. An optical communication AGV vehicle, characterized in that, The device includes a storage platform, a control module, and a chassis wheel assembly. The storage platform is positioned above the chassis wheel assembly. The control module includes a main control PLC with a LAN interface and an RS485 interface. LiDARs located at the front and rear ends of the chassis wheel assembly are connected to the LAN interface. A first optical communication module and a second optical communication module connected to the RS485 interface are respectively located at the front and side of the chassis wheel assembly. The angle between the first and second optical communication modules is 90°. The control module is also electrically connected to a power supply module. The storage platform includes a pick-and-place conveyor belt electrically connected to the main control PLC. The orientation of the pick-and-place conveyor belt is the same as that of the second optical communication module.

2. The optical communication AGV vehicle according to claim 1, characterized in that, The pick-and-place conveyor belt is equipped with proximity sensors at both the front and rear ends. The proximity sensors are electrically connected to the main control PLC. A protective baffle is installed at the end of the pick-and-place conveyor belt.

3. The optical communication AGV vehicle according to claim 1, characterized in that, The chassis wheel assembly includes multiple electrically controlled casters, all of which are connected to the chassis controller, which is connected to the LAN interface of the main control PLC.

4. The optical communication AGV vehicle according to claim 3, characterized in that, The LAN interface of the main control PLC is connected to the lidar and chassis controller via a switch, which is also connected to the external network port at the front end of the chassis wheel assembly.

5. The optical communication AGV vehicle according to claim 1, characterized in that, The power supply module includes a battery pack and a switching power supply that are electrically connected. The switching power supply is electrically connected to the main control PLC, the lidar, the first optical communication module, the second optical communication module, and the chassis wheel assembly.

6. The optical communication AGV vehicle according to claim 1, characterized in that, The front end of the chassis wheel assembly is equipped with a touch screen display, and the bottom is equipped with a speaker. Both the touch screen display and the speaker are electrically connected to the main control PLC.

7. The optical communication AGV vehicle according to claim 1, characterized in that, The control module and chassis wheel assembly are both mounted on the chassis base plate, and the platform is connected to the top of the chassis base plate via multiple support columns.

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