A non-contact communication-based non-stop and non-stationary fast communication method

Abstract

The application discloses a kind of based on the indefinite distance, not stop fast communication method of communication, comprising the following steps: S2: host computer sends task to dispatch system server: trolley to pass through A, B, C three station dispatch system server receives analysis task, calculates all the passing point action and distance information, and dispatch system server sends the distance information L1, L2, L3 of A, B, C station to AGV vehicle-mounted communication screen by wired network, and each communication screen switches focal length to specified distance;The communication screen of the present application with fixed focal length used previously now increases communication range, so that the communication screen of the same station can adapt to more different sizes of mobile devices to interact with communication.Based on this communication form, this not stop communication method is also adopted, and mobile device can complete interaction with host computer in moving, and efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to a communication method, and more particularly to a fast, non-stop communication method for variable distances based on contactless communication, belonging to the field of communication technology. Background Technology

[0002] In classified environments, wireless communication is generally not permitted, and wired communication is the norm. However, for certain mobile devices (such as AGVs and railcars), wired communication is inconvenient for movement, while wireless communication is insecure. This has become a technical problem that urgently needs to be solved by those skilled in the art.

[0003] Patent number CN202011208882.2 proposes a contactless communication screen that uses a fixed-focus camera. This method has a problem: the distance for mutual scanning communication is relatively fixed. That is, the distance between the mobile device and the fixed device in the diagram above is definite. However, in actual use, mobile devices can vary greatly. Some devices are large and close to the fixed device, while others are small and farther away during movement. Therefore, a fixed-focus communication screen is not suitable for situations with a complex variety of devices.

[0004] A contactless communication screen using a variable focal length camera is proposed. However, the focusing time of a variable focal length camera with automatic zoom function is often relatively long (≥0.5s). This has little impact on stationary mobile devices, but for mobile devices, QR code recognition is difficult, affecting communication efficiency. The device has to stop, complete the communication, and then move on to the next station.

[0005] Based on this, we provide a contactless communication method for high-speed communication over uncertain distances without stopping. Summary of the Invention

[0006] The purpose of this invention is to provide a fast, non-stop communication method for variable distances based on contactless communication, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a method for high-speed, non-stop communication over uncertain distances based on contactless communication, comprising the following steps:

[0008] S1: Set up three stations, A, B, and C. Each of the three stations is equipped with a communication screen. All three stations are connected to the dispatch system server via a wired network. The three communication screens can set the focal length through the network. The AGV is also equipped with a communication screen on its body, and the focal length can be set through the on-board controller.

[0009] S2: The host computer sends the task to the scheduling system server: The AGV needs to pass through three stations A, B, and C. The scheduling system server receives and parses the task, calculates the actions and distance information of all the points along the way, and sends the distance information L1, L2, and L3 of stations A, B, and C to the AGV on-board communication screen through the wired network. Each communication screen switches the focus to the specified distance.

[0010] S3: The scheduling system sends all the landmark action information and landmark distance information L1, L2, and L3 of A, B, and C to the AGV. The communication screen at station B obtains the status feedback from the AGV at a specified focal length L2, and then sends it to the scheduling system server via the wired network; the communication screen at station C obtains the status feedback from the AGV at a specified focal length L3, and then sends it to the scheduling system server via the wired network.

[0011] As a preferred embodiment of the present invention, the specific steps for the AGV vehicle to pass through station A are as follows:

[0012] Step 1: After receiving the information, the AGV will move forward at the landmark at station A;

[0013] Step 2: After the AGV passes the landmark card at station B, switch the focus of the on-board communication screen to the distance L2 specified by the dispatching system server;

[0014] Step 3: The AGV slows down, and the on-board communication screen and the B-station communication screen will communicate at the specified focal length L2. At this time, the AGV does not need to stop.

[0015] Step 4: When the AGV passes the landmark card at station C, since C is the destination, the AGV stops and switches the focus of the onboard communication screen to the distance L3 specified by the dispatching system server. The onboard communication screen of the AGV and the communication screen at station C will communicate at the specified focus L3.

[0016] As a preferred embodiment of the present invention, a device for non-stop, high-speed communication over uncertain distances based on contactless communication includes:

[0017] The scheduling system server is responsible for receiving tasks sent by the host computer, parsing the tasks, calculating the actions and distances of all waypoints, and receiving feedback status and sending information from the AGV (Automated Guided Vehicle).

[0018] AGV (Automated Guided Vehicle) carts: used for transportation and carrying onboard communication screens;

[0019] Stations A, B, and C are used to set up corresponding communication screens and increase the communication range.

[0020] Communication screen: It is equipped with a variable focal length camera with automatic zoom function, and is also responsible for data communication;

[0021] Landmark Card: Used to set up landmarks, making it easier to set up stations;

[0022] Vehicle-mounted communication screen: Same as communicating with a communication screen;

[0023] Vehicle controller: Used to control the focal length of the vehicle communication screen.

[0024] As a preferred embodiment of the present invention, the information sent by the scheduling system server includes the action of the landmark card and the distance information of the landmark card.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention provides a contactless, non-stop, high-speed communication method for varying distances. Compared to previous fixed-focus communication screens, the current method expands the communication range (within the variable focal length range of the camera), allowing the same communication screen at the same station to accommodate a wider variety of mobile devices (such as AGVs) of different sizes for interactive communication. Based on this communication method, and employing a non-stop communication approach (the AGV does not need to stop and wait for the camera to automatically focus before communicating), mobile devices can complete interactive communication with the host computer while moving (at low speed, the speed depending on the camera's field of view), significantly improving efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the organizational framework in this invention;

[0028] Figure 2 This is a schematic diagram of the status of the three stations A, B, and C in this invention;

[0029] Figure 3 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0030] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-3 This invention provides a technical solution for a contactless, non-stop, high-speed communication method for uncertain distances:

[0032] according to Figure 1-3 As shown, a method for high-speed, non-stop communication over a fixed distance based on contactless communication includes the following steps:

[0033] S1: Set up three stations, A, B, and C. Each of the three stations is equipped with a communication screen. All three stations are connected to the dispatch system server via a wired network. The three communication screens can set the focal length through the network. The AGV is also equipped with a communication screen on its body, and the focal length can be set through the on-board controller.

[0034] S2: The host computer sends the task to the scheduling system server: The AGV needs to pass through three stations A, B, and C. The scheduling system server receives and parses the task, calculates the actions and distance information of all the points along the way, and sends the distance information L1, L2, and L3 of stations A, B, and C to the AGV on-board communication screen through the wired network. Each communication screen switches the focus to the specified distance.

[0035] S3: The scheduling system sends all the landmark action information and landmark distance information L1, L2, and L3 of A, B, and C to the AGV. The communication screen at station B obtains the status feedback from the AGV at a specified focal length L2, and then sends it to the scheduling system server via the wired network; the communication screen at station C obtains the status feedback from the AGV at a specified focal length L3, and then sends it to the scheduling system server via the wired network.

[0036] The specific steps for the AGV to pass through station A are as follows:

[0037] Step 1: After receiving the information, the AGV will move forward at the landmark at station A;

[0038] Step 2: After the AGV passes the landmark card at station B, switch the focus of the on-board communication screen to the distance L2 specified by the dispatching system server;

[0039] Step 3: The AGV slows down, and the on-board communication screen and the B-station communication screen will communicate at the specified focal length L2. At this time, the AGV does not need to stop.

[0040] Step 4: When the AGV passes the landmark card at station C, since C is the destination, the AGV stops and switches the focus of the onboard communication screen to the distance L3 specified by the dispatching system server. The onboard communication screen of the AGV and the communication screen at station C will communicate at the specified focus L3.

[0041] A device for high-speed, non-stop communication over a fixed distance based on contactless communication, comprising:

[0042] The scheduling system server is responsible for receiving tasks sent by the host computer, parsing the tasks, calculating the actions and distances of all waypoints, and receiving feedback status and sending information from the AGV (Automated Guided Vehicle).

[0043] AGV (Automated Guided Vehicle) carts: used for transportation and carrying onboard communication screens;

[0044] Stations A, B, and C are used to set up corresponding communication screens and increase the communication range.

[0045] Communication screen: It is equipped with a variable focal length camera with automatic zoom function, and is also responsible for data communication;

[0046] Landmark Card: Used to set up landmarks, making it easier to set up stations;

[0047] Vehicle-mounted communication screen: Same as communicating with a communication screen;

[0048] Vehicle controller: Used to control the focal length of the vehicle communication screen.

[0049] The information sent by the scheduling system server includes the location card's actions and distance information.

[0050] In practical use, this invention provides a contactless, non-stop, high-speed communication method for uncertain distances. Three stations, A, B, and C, are set up, each equipped with a communication screen. All three stations are connected to a dispatching system server via a wired network. The three communication screens have their focal lengths set via the network. An AGV (Automated Guided Vehicle) is also equipped with a communication screen, whose focal length can be set via an onboard controller. The host computer sends the task to the dispatching system server: the dispatching system server receives and parses the task, calculating the actions and distances at all points along the route. The dispatch system server sends the distance information L1, L2, and L3 of stations A, B, and C to the AGV's onboard communication screen via a wired network. Each communication screen switches its focus to the specified distance. The dispatch system sends all the landmark action information and landmark distance information L1, L2, and L3 of stations A, B, and C to the AGV. The communication screen at station B receives the status feedback from the AGV at the specified focus L2 and then sends it to the dispatch system server via a wired network. The communication screen at station C receives the status feedback from the AGV at the specified focus L3 and then sends it to the dispatch system server via a wired network.

[0051] When the dispatch system server issues a task, it sends two types of information through the communication screen. One is the action of the landmark card, that is, when the AGV encounters the X card, it executes the action information of the X card (such as forward, backward, left turn, right turn, etc.). The other is the distance information of the landmark card, that is, when the AGV encounters the X card, the AGV vehicle controller sets the focus of the vehicle communication screen to the distance information of the X card. This enables the AGV to automatically switch the focus when it arrives at the station, quickly communicate with the station communication screen, and realize a fast communication method that can be used for unpredictable distances without stopping.

[0052] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0053] In this invention, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for high-speed, non-stop communication over a fixed distance based on contactless communication, characterized in that: Includes the following steps: S1: Three stations, A, B, and C, are set up. Each of the three stations is equipped with a communication screen. All three stations are connected to the dispatch system server via a wired network. The focus of the three communication screens is set through the network. The AGV trolley is also equipped with a communication screen, and the focus can be set through the on-board controller. S2: The host computer sends the task to the scheduling system server: The AGV needs to pass through three stations, A, B, and C. The scheduling system server receives and parses the task, calculates the actions and distance information of all points along the way, and sends the distance information L1, L2, and L3 of stations A, B, and C to the AGV's onboard communication screen through a wired network. Each communication screen switches its focus to the specified distance. S3: The scheduling system sends all the landmark action information and landmark distance information L1, L2, and L3 of A, B, and C to the AGV. The communication screen at station B obtains the status feedback from the AGV with distance information L2 as the specified focal length, and then sends it to the scheduling system server through the wired network; the communication screen at station C obtains the status feedback from the AGV with distance information L3 as the specified focal length, and then sends it to the scheduling system server through the wired network.

2. The method for high-speed, non-stop communication over variable distances based on contactless communication according to claim 1, characterized in that... The specific steps for the AGV to pass through station A are as follows: Step 1: After receiving the information, the AGV performs a forward movement at the landmark at station A; Step 2: After passing the landmark at station B, the AGV switches the focus of its onboard communication screen to the distance L2 specified by the scheduling system server; Step 3: The AGV reduces its speed, and the onboard communication screen and the communication screen at station B will communicate at the specified focus L2. At this time, the AGV does not need to stop; Step 4: After passing the landmark at station C, since C is the destination, the AGV stops and switches the focus of its onboard communication screen to the distance L3 specified by the scheduling system server. The onboard communication screen of the AGV and the communication screen at station C will communicate at the specified focus L3.

3. An apparatus for a contactless, non-stop, high-speed communication method for indefinite distances based on any one of claims 1-2, characterized in that, include: The scheduling system server receives tasks from the host computer, parses the tasks, calculates the actions and distances of all waypoints, and receives feedback status from the AGV carts and sends information. The AGV carts are used for transportation and carrying the onboard communication screens. Stations B and C are used to set up corresponding communication screens and increase the communication range. The communication screens are equipped with variable-focus cameras with automatic zoom and are responsible for data communication. Landmark cards are used to set landmarks for easy station setup. The onboard communication screen communicates with the communication screen. The onboard controller controls the focal length of the onboard communication screen.

4. The device for contactless, non-stop, high-speed communication over variable distances according to claim 3, characterized in that... The information sent by the scheduling system server includes the location card's actions and distance information.

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