Automatic unmanned vehicle operation system

Abstract

The utility model discloses an automatic unmanned vehicle operation system, which comprises a controller, a radio frequency tag, a code reader, an unmanned vehicle and an electrically operated gate, the controller is connected with the electrically operated gate; the controller is also in wireless communication connection with the unmanned vehicle; the controller is also connected with the code reader; a radio frequency tag is configured on the unmanned vehicle; the unmanned vehicle is configured to send a door opening instruction to the controller in a wireless communication mode, and the controller is configured to control the electric door to be opened according to the door opening instruction; the code reader is configured to identify the radio frequency tag, and the controller is further configured to control the electric door to be opened according to the identification result of the code reader.

Description

Technical Field

[0001] The embodiment of the utility model relates to the field of automation technology, and in particular to an automated unmanned vehicle operation system. Background Art

[0002] AGV (Automated Guided Vehicle) can operate 24 hours a day without human intervention in smart factories, thus ensuring extremely high production efficiency. During use, AGV will pass through various work areas, which are usually isolated by electric doors. The opening and closing of electric doors requires a PLC (Programmable Logic Controller) control system. When the AGV reaches the designated area, it sends door opening and closing instructions to the PLC control system. After the electric door is opened, the AGV completes the task.

[0003] In actual use of the existing technology, due to the complex network environment in production, network interruption is prone to occur between PLC and AGV. After the network interruption occurs, PLC cannot open the electric door, thereby affecting production efficiency and causing economic losses. Utility Model Content

[0004] The utility model provides an automated unmanned vehicle operation system, so as to achieve the purpose of enabling the unmanned vehicle operation system to realize reliable door opening control.

[0005] The embodiment of the utility model provides an automated unmanned vehicle operation system, comprising: a controller, a radio frequency tag, a code reader, an unmanned vehicle and an electric door;

[0006] The controller is connected to the electric door;

[0007] The controller is also wirelessly connected to the unmanned vehicle;

[0008] The controller is also connected to the code reader;

[0009] The radio frequency tag is configured on the unmanned vehicle;

[0010] The unmanned vehicle is configured to send a door opening instruction to the controller via wireless communication, and the controller is configured to control the electric door to open according to the door opening instruction;

[0011] The code reader is configured to identify the radio frequency tag, and the controller is further configured to control the electric door to open according to the identification result of the code reader.

[0012] Optionally, a detection switch is also included;

[0013] The detection switch is connected to the controller, and the detection switch is configured to detect whether the electric door is fully opened or fully closed.

[0014] Optionally, the detection switch adopts a photoelectric proximity switch.

[0015] Optionally, a switch is also included;

[0016] The controller is wirelessly connected to the unmanned vehicle via the switch.

[0017] Optionally, the controller adopts PLC.

[0018] Optionally, the PLC is connected to the switch via a first Ethernet module.

[0019] Optionally, the unmanned vehicle is further configured with an obstacle detection module;

[0020] The obstacle detection module is used to detect whether the unmanned vehicle encounters an obstacle while traveling.

[0021] Optionally, the PLC is connected to the code reader via a second Ethernet module.

[0022] Optionally, the unmanned vehicle is equipped with a cargo carrying function.

[0023] Optionally, the radio frequency tag is attached to the body of the unmanned vehicle.

[0024] Compared with the prior art, the beneficial effect of the utility model is that: the utility model proposes an automated unmanned vehicle operation system, the system includes a controller, a radio frequency tag, a code reader, and an unmanned vehicle, wherein the unmanned vehicle is configured to be wirelessly connected to the controller, the radio frequency tag is configured on the unmanned vehicle, the controller is configured to be connected to the code reader, and the code reader is configured to identify the radio frequency tag, wherein the unmanned vehicle can directly send an electric door opening control instruction to the controller, and the controller can also generate an electric door opening control instruction through the identification result of the radio frequency tag by the code reader. Since the controller can obtain or generate the electric door opening control instruction through two channels, when the wireless communication link between the unmanned vehicle and the controller fails, the door opening and closing can still be controlled by identifying the radio frequency tag, thereby improving the control reliability of the electric door and avoiding the problem that the unmanned vehicle cannot operate normally due to abnormal opening of the electric door. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural block diagram of an automated unmanned vehicle operation system in an embodiment;

[0026] Figure 2 is a structural block diagram of another automated unmanned vehicle operation system in the embodiment;

[0027] Figure 3 It is a structural block diagram of another automated unmanned vehicle operation system in the embodiment. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] Figure 1 This is a structural diagram of the automated unmanned vehicle operation system in the embodiment, refer to Figure 1 , the system includes: a controller 100, a radio frequency tag 200, a code reader 300, an unmanned vehicle 400 and an electric door 500;

[0030] The controller 100 is connected to the electric door 500;

[0031] The controller 100 is also wirelessly connected to the unmanned vehicle 400;

[0032] The controller 100 is also connected to the code reader 300;

[0033] The unmanned vehicle 400 is provided with a radio frequency tag 200;

[0034] The unmanned vehicle 400 is configured to send a door opening command to the controller 100 via wireless communication, and the controller 100 is configured to control the electric door 500 to open according to the door opening command;

[0035] The code reader 300 is configured to identify the radio frequency tag 200 , and the controller 100 is further configured to control the electric door 500 to open according to the identification result of the code reader 300 .

[0036] In this solution, the electric door 500 is set to isolate different working areas, and the unmanned vehicle 400 is set to pass through the electric door 500 when entering from one designated area to another designated area.

[0037] In this solution, there is no limitation on the connection method between the controller 100 and the electric door 500, and the two can be connected in communication via wired or wireless means.

[0038] In this solution, the configuration controller 100 is connected to the code reader 300 in a wired manner.

[0039] In this solution, the radio frequency tag 200 is set on the unmanned vehicle 400 and moves with the unmanned vehicle 400.

[0040] In this solution, there is no limitation on the way of installing the radio frequency tag 200 on the unmanned vehicle 400 . For example, in one possible implementation, the radio frequency tag 200 can be attached to the body of the unmanned vehicle 400 .

[0041] In this solution, the usage function of the unmanned vehicle 400 can be freely set according to needs. For example, the unmanned vehicle 400 can be set to be used for moving objects, environmental inspections, etc.

[0042] In this solution, the system works as follows:

[0043] When the unmanned vehicle 400 arrives at the designated operation area, it sends a door opening command to the controller 100. After receiving the door opening command, the controller 100 controls the electric door to open.

[0044] When the controller 100 detects that the wireless communication between the controller 100 and the unmanned vehicle 400 fails and normal data interaction cannot be achieved, the controller 100 controls the electric door 500 to open according to the recognition result of the code reader 300;

[0045] Specifically, when the unmanned vehicle 400 arrives at the designated location, the code reader 300 identifies the radio frequency tag 200 , and when the controller 100 receives the identification result of the code reader 300 , it controls the electric door 500 to open.

[0046] The present embodiment proposes an automated unmanned vehicle operation system, which includes a controller, a radio frequency tag, a code reader, and an unmanned vehicle, wherein the unmanned vehicle is configured to be wirelessly connected to the controller, the radio frequency tag is configured on the unmanned vehicle, the controller is configured to be connected to the code reader, and the code reader is configured to identify the radio frequency tag. The unmanned vehicle can directly send an electric door opening control instruction to the controller, and the controller can also generate an electric door opening control instruction through the identification result of the radio frequency tag by the code reader. Since the controller can obtain or generate the electric door opening control instruction through two channels, when the wireless communication link between the unmanned vehicle and the controller fails, the door opening and closing can still be controlled by identifying the radio frequency tag, thereby improving the control reliability of the electric door and avoiding the problem that the unmanned vehicle cannot operate normally due to abnormal opening of the electric door.

[0047] Figure 2 This is another structural block diagram of an automated unmanned vehicle operation system in an embodiment, refer to Figure 2 ,exist Figure 1 Based on the illustrated solution, in one possible implementation, the system further includes a detection switch 600;

[0048] The detection switch 600 is connected to the controller 100 , and the detection switch 600 is configured to detect whether the electric door 500 is fully opened or closed.

[0049] Exemplarily, in this solution, by configuring the detection switch 600, after the controller 100 issues a door opening command, it can determine whether the electric door 500 is fully opened according to the detection signal of the detection switch 600, and before the electric door 500 is fully opened, the unmanned vehicle 400 can be notified to stop the action;

[0050] After the unmanned vehicle 400 passes through the electric door 500, or after a certain period of time since the electric door 500 opens, the controller 100 generates a door closing command. After the controller 100 issues the door closing command, it can determine whether the electric door 500 is closed according to the detection signal of the detection switch 600. If the door is not closed, the preset control strategy is executed.

[0051] In this solution, there is no limitation on the type of the detection switch. For example, the detection switch may be a travel switch, a proximity switch, or the like.

[0052] Furthermore, as a preferred solution, when the system is configured with a detection switch, the detection switch is a photoelectric proximity switch.

[0053] Based on any of the aforementioned solutions, in one possible implementation scheme, the unmanned vehicle is also equipped with an obstacle detection module; the obstacle detection module is used to detect whether the unmanned vehicle encounters an obstacle while traveling.

[0054] In this solution, the specific working principle of the obstacle detection module is not limited. For example, it can be a SLAM module, a laser radar module, etc.

[0055] When the unmanned vehicle is equipped with an obstacle detection module, the unmanned vehicle can be configured to detect whether the electric door is open. If it is detected that the electric door in the route is not successfully opened or is not opened in place, the action will be stopped.

[0056] Based on any of the foregoing solutions, in one feasible implementation, the unmanned vehicle is equipped with a cargo carrying function.

[0057] In this solution, unmanned vehicles are set up to be used specifically for the transportation of raw materials and the warehousing of finished products, where the raw materials can be medicinal materials, spare parts, etc., and the finished products can be corresponding medicinal liquids, tablets, equipment, etc.

[0058] Based on any of the foregoing solutions, in one possible implementation scheme, the system also includes a switch, and the configuration controller is wirelessly connected to the unmanned vehicle through the switch.

[0059] In this solution, multiple unmanned vehicles can be configured in the system, and based on the switch, multiple unmanned vehicles can be configured to communicate with the controller;

[0060] Multiple unmanned vehicles and multiple controllers can also be configured in the system. Based on the switch, the unmanned vehicles can be configured to communicate with the corresponding controllers.

[0061] Based on the scheme that the system includes a switch, in one possible implementation scheme, the configuration controller adopts a PLC.

[0062] Furthermore, when the controller adopts PLC, the PLC is configured to be connected to the switch through the first Ethernet module. Accordingly, in this solution, the switch adopts an Ethernet switch.

[0063] Furthermore, when the controller adopts PLC, the PLC is configured to be connected to the code reader through the second Ethernet module. Accordingly, in this solution, the switch adopts an Ethernet switch.

[0064] Figure 3 It is a structural block diagram of another automated unmanned vehicle operation system in the embodiment. Based on any of the above solutions, in one possible implementation scheme, the system includes:

[0065] PLC 101, RFID tag 201, RFID reader 301, unmanned vehicle 400, electric door 500, photoelectric proximity switch 601 and switch 700;

[0066] The PLC 101 is connected to the unmanned vehicle 400 through the switch 700 . The PLC 101 is also connected to the RFID reader 301 , the electric door 500 , and the photoelectric proximity switch 601 . The unmanned vehicle 400 is equipped with an RFID tag 201 .

[0067] In this solution, the unmanned vehicle 400 is set as an AGV (Automated Guided Vehicle), the unmanned vehicle 400 is set as an automatically guided transport vehicle with a cargo-carrying function, and the unmanned vehicle 400 is set to realize the transportation of designated raw materials and / or the warehousing of designated finished products.

[0068] In this solution, the PLC 101 is configured to include a first Ethernet module and a second Ethernet module, and the switch 700 is configured to be an Ethernet switch;

[0069] Configuring the PLC 101 to connect to the production network via the first Ethernet module, thereby achieving wireless network connection with the unmanned vehicle 400;

[0070] The PLC 101 is configured to be connected to the RFID reader 301 through the second Ethernet module, and the PLC 101 is configured to obtain the recognition result of the RFID reader 301 on the RFID tag 201, and use the recognition result as an optional condition for realizing opening the electric door 500;

[0071] An RFID tag 201 is attached to the body of the unmanned vehicle 400 as a unique identifier of the AGV. The identification code written in the RFID tag 201 can be freely set. For example, the code 20001 can be written in the chip of the RFID tag 201.

[0072] In this solution, PLC 101 can adopt Siemens S7-200SMART series programmable controller;

[0073] In this solution, a photoelectric proximity switch 601 is configured to collect the door opening and closing signals of the electric door 500.

[0074] In this solution, it is assumed that the unmanned vehicle 400 is also equipped with an obstacle detection module, and the unmanned vehicle 400 is configured to implement an obstacle detection function based on the obstacle detection module.

[0075] In this solution, the unmanned vehicle 400 is configured to communicate with the PLC 101 through the switch 700. When the unmanned vehicle 400 reaches the specified position, it sends a door opening command to the PLC 101, and the PLC 101 controls the electric door 500 to open;

[0076] If the wireless communication between the PLC 101 and the unmanned vehicle 400 fails, the PLC 101 controls the opening of the electric door 500 based on the recognition result of the RFID tag 201 by the RFID reader 301;

[0077] The PLC 101 is configured to communicate with the RFID reader 301 based on Ethernet, the reading function of the RFID reader 301 is started every 2 seconds, and the RFID tag 201 is set to be attached to the AGV and the tag is encoded;

[0078] When the AGV is configured to be 2 meters away from the electric door 500, the RFID reader 301 can read the code successfully. After the PLC 101 determines the recognition result of the RFID reader 301, it controls the electric door 500 to open and the AGV starts to move;

[0079] The AGV has an obstacle detection function. When the door is not open, it will detect obstacles and cannot move. After the AGV passes through the electric door, it sends a door closing command. After receiving the door closing command, the PLC 101 controls the electric door 500 to close.

[0080] The PLC 101 is configured to detect whether the electric door 500 is fully closed through the photoelectric proximity switch 601. If it cannot be fully closed, a preset control strategy is executed.

[0081] In this solution, two sets of communication methods are configured between PLC 101 and unmanned vehicle 400. In the event of a wireless network communication failure, another configured RFID wireless code reading technology is used to maintain key information interaction between PLC 101 and unmanned vehicle 400, which can improve the reliability of the system.

[0082] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An automated unmanned vehicle operation system, characterized in that: include: Controllers, RFID tags, barcode readers, unmanned vehicles and electric doors; The controller is connected to the electric door; The controller is also wirelessly connected to the unmanned vehicle; The controller is also connected to the code reader; The radio frequency tag is configured on the unmanned vehicle; The unmanned vehicle is configured to send a door opening instruction to the controller via wireless communication, and the controller is configured to control the electric door to open according to the door opening instruction; The code reader is configured to identify the radio frequency tag, and the controller is further configured to control the electric door to open according to the identification result of the code reader.

2. The automated unmanned vehicle operation system according to claim 1, characterized in that: Also includes a detection switch; The detection switch is connected to the controller, and the detection switch is configured to detect whether the electric door is fully opened or fully closed.

3. The automated unmanned vehicle operation system according to claim 2, characterized in that: The detection switch adopts a photoelectric proximity switch.

4. The automated unmanned vehicle operation system according to claim 1, characterized in that: Also includes switches; The controller is wirelessly connected to the unmanned vehicle via the switch.

5. The automated unmanned vehicle operation system according to claim 4, characterized in that: The controller adopts PLC.

6. The automated unmanned vehicle operation system according to claim 5, characterized in that: The PLC is connected to the switch via a first Ethernet module.

7. The automated unmanned vehicle operation system according to claim 1, characterized in that: The unmanned vehicle is also equipped with an obstacle detection module; The obstacle detection module is used to detect whether the unmanned vehicle encounters an obstacle while traveling.

8. The automated unmanned vehicle operation system according to claim 5, characterized in that: The PLC is connected to the code reader via a second Ethernet module.

9. The automated unmanned vehicle operation system according to claim 1, characterized in that: The unmanned vehicle is equipped with a cargo carrying function.

10. The automated unmanned vehicle operation system according to claim 1, characterized in that: The radio frequency tag is attached to the body of the unmanned vehicle.

Images