A voice broadcast device and an AGV with the same

Abstract

The utility model relates to vehicle voice broadcast technical field, concretely relates to a voice broadcast device and have the AGV of this voice broadcast device, this voice broadcast device is used for broadcasting operation instruction, include: operation unit, operation unit is used for operator input operation instruction, voice broadcast unit, voice broadcast unit is used for through the mode of voice broadcast will operation instruction output, main control unit, main control unit respectively communication connection in operation unit and voice broadcast unit, to be used for transmission operation instruction, and the transmission path of operation instruction includes: operation unit main control unit voice broadcast unit. The utility model will operation unit and voice broadcast unit form indirect communication connection through main control unit, will operation instruction through the mode of voice broadcast output, thereby will corresponding operation instruction feedback to operator, so as to operator in time follow-up AGV etc. Controlled object's state, improve security.

Description

Technical Field

[0001] This utility model relates to the field of vehicle voice broadcasting technology, specifically to a voice broadcasting device and an AGV equipped with the voice broadcasting device. Background Technology

[0002] AGV (Automated Guided Vehicle) is an automated guided vehicle, also known as an "automatic guided transport vehicle" or "automatic guided transport vehicle". The control panel of existing AGVs has integrated more and more instruction buttons according to different working conditions. Finding the instruction buttons marked with icons on the control panel with many buttons brings greater difficulty and challenge to the operator in operating the AGV. When looking down to operate the buttons, the eyes cannot follow the vehicle's movement, which poses a potential hazard. Summary of the Invention

[0003] The purpose of this invention is to provide a voice broadcasting device and an AGV equipped with the voice broadcasting device, which broadcasts operation instructions by voice, thereby feeding back the operation instructions to the operator, avoiding misoperation and improving safety.

[0004] To achieve the above objectives, the technical solution of this utility model includes:

[0005] A voice broadcasting device for broadcasting operation instructions, comprising:

[0006] The operation unit is used for operators to input operation commands;

[0007] A voice broadcast unit is used to output the operation command by voice broadcasting.

[0008] The main control unit is communicatively connected to both the operation unit and the voice broadcast unit to transmit the operation instructions. The transmission path of the operation instructions includes: the operation unit → the main control unit → the voice broadcast unit.

[0009] In one embodiment, the operating unit is an operating handle.

[0010] In one embodiment, the voice broadcasting device is used in a vehicle, and the main control unit is also communicatively connected to a base vehicle control unit. The main control unit is used to transmit the operation instructions from the operation unit to the base vehicle control unit for controlling the vehicle.

[0011] In one embodiment, the vehicle is a forklift, and the base vehicle control unit is used to control at least one or more of the forklift's driving system, working device, and electrical equipment;

[0012] The operation instructions include at least one or more of the following:

[0013] (a) Fork lifting / fork lowering;

[0014] (b) Fork tilt forward / fork tilt backward;

[0015] (c) Fork move left / Fork move right;

[0016] (d) Forks rotate left-hand / Forks rotate right-hand;

[0017] (e) Vehicle turning left / Vehicle turning right;

[0018] (f) Vehicle forward / Vehicle backward.

[0019] In one embodiment, the main control unit is equipped with a timing module. The main control unit first transmits the operation command to the voice broadcast unit and then to the base vehicle control unit, thereby forming a time difference. The timing module is used to control this time difference.

[0020] In one embodiment, the main control unit and the base vehicle control unit form a communication connection via CAN communication.

[0021] In one embodiment, the voice broadcasting device is used for a forklift AGV, and the operating unit is an operating handle for manually controlling the movement of the forklift AGV.

[0022] In one embodiment, the operation unit and the main control unit are connected via CAN communication, and the voice broadcast unit and the main control unit are connected via RS485 communication.

[0023] In one embodiment, the voice broadcasting unit and the main control unit have multiple transmission channels, each of which corresponds to one or more operation instructions. The main control unit transmits the operation instructions to the voice broadcasting unit through the corresponding transmission channel to broadcast the corresponding operation instructions.

[0024] The technical solution of this utility model also includes:

[0025] An AGV includes the aforementioned voice broadcast device.

[0026] The beneficial effects of this utility model are:

[0027] First, this invention establishes an indirect communication connection between the operation unit and the voice broadcast unit through the main control unit. Operation commands are output via voice broadcast, thus providing feedback to the operator. This allows the operator to monitor the status of the AGV and other controlled objects in a timely manner, improving safety. Second, the main control unit transmits operation commands sequentially to the voice broadcast unit and the base vehicle control unit. This time difference allows the operator to determine the correctness of the operation commands, further enhancing the safety of vehicle control. Attached Figure Description

[0028] Figure 1 This is an electrical schematic diagram of an embodiment of the present utility model.

[0029] Figure 2 This is a control principle diagram of an embodiment of the present invention. Detailed Implementation

[0030] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0031] See Figures 1 to 2 As shown, this utility model discloses a voice broadcasting device for broadcasting operation instructions, comprising: an operation unit 1 for inputting operation instructions by an operator; a voice broadcasting unit 2 for outputting operation instructions via voice broadcasting; and a main control unit 3, which is communicatively connected to the operation unit 1 and the voice broadcasting unit 2 for transmitting operation instructions. The transmission path of the operation instructions includes: operation unit 1 → main control unit 3 → voice broadcasting unit 2.

[0032] This voice broadcast device is used for vehicles, specifically AGVs or forklifts, or other controlled objects such as vehicles or equipment. In this embodiment, it is a forklift-type AGV. Of course, in other embodiments, it can also be other types of AGVs, such as material handling robot AGVs. The controlled object refers to the object that is controlled and moved by the operator. Specifically, the operator inputs operation commands into the operation unit 1, and the controlled object performs the corresponding actions.

[0033] In this embodiment, the operating unit 1 is an operating handle. In other embodiments, it can be other operating units, such as the control panel in the driver's cab.

[0034] The voice broadcast unit 2 is an intelligent voice player, which is used to receive signals from the main control unit 3 and play out the operation instructions through voice broadcast. The specific principle is existing technology and will not be elaborated here.

[0035] This invention establishes an indirect communication connection between the operation unit 1 and the voice broadcast unit 2 through the main control unit 3, and outputs the operation instructions through voice broadcast, thereby feeding back the corresponding operation instructions to the operator so that the operator can keep track of the status of the forklift and other controlled objects in a timely manner, thus improving safety.

[0036] In this embodiment, the main control unit 3 is also connected to the base vehicle control unit 4. The main control unit 3 transmits operation commands from the operation unit 1 to the base vehicle control unit 4 to control the forklift to perform corresponding actions. The base vehicle control unit 4 controls at least one or more of the forklift's driving system, working device, and electrical equipment. The operation commands in this embodiment include: (a) fork raising / fork lowering; (b) fork tilting forward / fork tilting backward; (c) fork moving left / fork moving right; (d) fork rotating left / fork rotating right; (e) vehicle turning left / vehicle turning right; (f) vehicle moving forward / vehicle reversing. In other embodiments, the operation commands are not limited to (a) to (f) above, and may include other operation commands, such as vehicle turning in place or headlights on / off; or only one or more of these commands may be used.

[0037] The operation unit 1 and the main control unit 3 are connected via CAN communication, and the voice broadcast unit 2 and the main control unit 3 are connected via RS485 communication. The main control unit 3 and the base vehicle control unit 4 are also connected via CAN communication. CAN communication is small in size, has a high transmission speed, and can transmit operation commands to the controlled object in a timely and accurate manner. RS485 communication is low in cost, simple to communicate with, and has strong anti-interference capabilities. The voice broadcast unit 2 and the main control unit 3 have multiple transmission channels formed by RS485 communication. Each transmission channel corresponds to one or more operation commands. The main control unit 3 transmits the operation command to the voice broadcast unit 2 through the corresponding transmission channel to broadcast the corresponding operation command. For example, if the operation command is "vehicle forward," the main control unit 3 sends this operation command to the voice broadcast unit 2 through transmission channel 1, and the voice broadcast unit 2 then plays the voice message "vehicle forward, please be careful." Of course, this invention does not limit the correspondence between operation commands and channels; those skilled in the art can choose according to the actual situation.

[0038] It should be noted that the base vehicle control unit 4 is not necessary, and the main control unit 3 can also directly control the actions of the controlled object.

[0039] To allow operators reaction time and prevent accidents due to misoperation, the main control unit 3 transmits the operation command first to the voice broadcast unit 2, and then to the base vehicle control unit 4, thus creating a time difference. The specific value of this time difference is set by those skilled in the art, for example, 2 seconds. Operators use this time difference to determine whether their input operation command matches their expected operation command, preventing accidents due to misoperation and improving safety. To control this time difference, the main control unit 3 is equipped with a timing module. After the main control unit 3 sends the operation command to the voice broadcast unit 2, the timing module counts until the preset time difference is reached, at which point the main control unit 3 sends the operation command to the base vehicle control unit 4.

[0040] The working process of this utility model:

[0041] The operating commands (such as moving the vehicle forward, backward, raising the forks, and lowering the forks) on the control handle are sent to the AGV controller via CAN. The AGV controller selects the appropriate voice channel based on these commands and sends them to the voice broadcast unit 2 via RS485. The voice broadcast unit 2 then plays the corresponding voice message. For example, for the command to move the vehicle forward, the AGV controller selects transmission channel 1 and sends it to the voice broadcast unit 2, which then plays the message "Vehicle moving forward, please be careful." Simultaneously, the AGV controller delays for a preset time (e.g., 2 seconds) before sending the forward command to the base vehicle controller 4 via CAN, controlling the AGV to move forward. This achieves the desired sequence: control handle command → voice playback → 2-second delay → AGV performs the corresponding action.

[0042] The control handle is used to manually control the actions of the AGV, especially during maintenance or testing. Due to the wide variety of AGV types and functions, there are many models of control handles with numerous and different instruction buttons. Operators, due to their infrequent use of control handles, find it difficult to become familiar with each type and its associated instruction buttons. Furthermore, AGVs typically lack a driver's seat; operators work from below, further increasing the safety risks of misoperation. For example, an unintended acceleration of the forklift could potentially strike the operator. Therefore, this invention provides timely feedback of operating instructions to the operator and allows for a time difference between sending the instructions to the voice broadcast unit 2 and the base vehicle controller 4. This allows operators time to quickly assess the correctness of the instructions and react accordingly, effectively improving operational safety.

[0043] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A voice broadcasting device, characterized in that: The voice broadcasting device is used to broadcast operation instructions, and includes: The operation unit is used for operators to input operation commands; A voice broadcast unit is used to output the operation command by voice broadcasting. The main control unit is communicatively connected to the operation unit and the voice broadcast unit to transmit the operation instructions. The transmission path of the operation instructions includes: the operation unit → the main control unit → the voice broadcast unit. The voice broadcast device is used in a vehicle. The main control unit is also communicatively connected to the base vehicle control unit. The main control unit is used to transmit the operation instructions from the operation unit to the base vehicle control unit for controlling the vehicle.

2. The voice broadcasting device according to claim 1, characterized in that: The operating unit is an operating handle.

3. The voice broadcasting device according to claim 1, characterized in that: The vehicle is a forklift, and the base vehicle control unit is used to control at least one or more of the forklift's driving system, working device, and electrical equipment; The operation instructions include at least one or more of the following: (a) Fork lifting / fork lowering; (b) Fork tilt forward / fork tilt backward; (c) Fork move to the left / fork move to the right; (d) Forks rotate left-hand / forks rotate right-hand; (e) Vehicle turning left / Vehicle turning right; (f) Vehicle forward / vehicle backward.

4. The voice broadcasting device according to claim 1, characterized in that: The main control unit is equipped with a timing module. The main control unit first transmits the operation command to the voice broadcast unit, and then to the base vehicle control unit, thereby forming a time difference. The timing module is used to control this time difference.

5. A voice broadcasting device according to claim 1, characterized in that: The main control unit and the base vehicle control unit are connected via CAN communication.

6. The voice broadcasting device according to claim 1, characterized in that: The voice broadcasting device is used for forklift-type AGVs, and the operating unit is an operating handle, which is used to manually control the movement of the forklift-type AGV.

7. A voice broadcasting device according to claim 1, characterized in that: The operation unit and the main control unit are connected via CAN communication, and the voice broadcast unit and the main control unit are connected via RS485 communication.

8. A voice broadcasting device according to claim 7, characterized in that: The voice broadcasting unit and the main control unit have multiple transmission channels. Each transmission channel corresponds to one or more operation commands. The main control unit transmits the operation commands to the voice broadcasting unit through the corresponding transmission channel to broadcast the corresponding operation commands.

9. An AGV, characterized in that: Includes the voice broadcasting device according to any one of claims 1-8.

Images