An external type remote control system for construction machinery
By adding a control motor and 5G communication to the operator's cab of a bucket excavator, an external remote control system is achieved, solving the problem of high retrofit costs in existing technologies and providing a safe, rapidly deployable, and low-cost remote control solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中铁科学研究院集团有限公司
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-09
AI Technical Summary
Existing remote control systems for construction machinery require significant modifications to the hydraulic and electrical systems, resulting in high retrofitting and time costs, and causing irreversible damage to the machinery.
An external remote control system for construction machinery is adopted. By adding control motors, including pedal modules, control boxes, telescopic motors, and clutch motors, to the operator's cab of the bucket excavator, and combining them with 5G communication technology, remote control can be achieved, avoiding major modifications to the machinery.
It achieves high security, almost zero equipment damage, rapid deployment and low cost of remote control, while maintaining the integrity of the original mechanical structure.
Smart Images
Figure CN224341793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering machinery control technology, specifically to an external engineering machinery remote control system. Background Technology
[0002] Construction machinery is increasingly used in high-risk scenarios such as mining, tunnel construction, demolition of dilapidated buildings, and disaster relief. However, traditional machinery operation relies heavily on manual on-site driving, exposing operators to dangerous environments such as landslides, dust, high temperatures, and toxic gases, resulting in persistently high personal safety risks. Using remote control of construction machinery can mitigate these risks, allowing operators to work in a safer and more comfortable environment.
[0003] Existing technologies have developed remote control systems for construction machinery, but these all involve significant modifications to the hydraulic and electrical systems of the machinery. For example, existing excavators operate via hydraulic systems, but to achieve remote control, it is necessary to replace hydraulic valves with solenoid valves and alter the machinery's piping, causing irreversible damage to the original equipment. During on-site implementation, the substantial modifications to the machinery result in high costs in both capital and time.
[0004] Currently, there is a lack of a remote control system that does not alter existing construction machinery and offers better flexibility and economy. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model aims to provide an external remote control system for construction machinery. This solution allows for remote operation by adding a control motor directly to the operator's cab of the bucket excavator, without requiring significant modifications to the machinery. It offers advantages such as high safety, virtually zero equipment damage, rapid deployment, and low cost.
[0006] This utility model is achieved through the following technical solution:
[0007] An external remote control system for construction machinery includes:
[0008] The remote-controlled cockpit includes a pedal module, a left control box, and a right control box. The left control box has a left cross joystick, and the right control box has a right cross joystick. The left control box, the right control box, and the pedal module are all equipped with CANUSB modules. The CANUSB modules are used to receive pedal signals and joystick output signals and upload them to the industrial control computer.
[0009] The operator's cab of the bucket excavator is equipped with a vehicle-mounted control terminal, which includes a machine-mounted controller. Each of the two pedals inside the bucket excavator is equipped with a telescopic motor, the output of which is used to push and pull the levers on the pedals forward and backward. Each of the two machine-mounted rocker arms of the bucket excavator is equipped with two clutch motors, which are used to push and pull the machine-mounted rocker arms forward and backward and left and right, respectively.
[0010] The airborne controller is used to receive control signals from the industrial computer and control the operation of the telescopic motor and the clutch motor.
[0011] Compared to existing technologies where remote control systems for construction machinery require significant modifications to the hydraulic and electrical systems, this invention provides an external remote control system for construction machinery. This solution allows for remote operation by adding a control motor directly to the operator's cab of the bucket excavator, without requiring major modifications to the machinery. It offers advantages such as high safety, virtually zero equipment damage, rapid deployment, and low cost. In the specific design, an onboard controller is installed in the operator's cab of the bucket excavator, along with two telescopic motors, four clutch motors, and a power supply system. The onboard controller receives remote control signals and controls the telescopic motors to extend and retract the levers on the pedals, thereby controlling the bucket excavator's forward, backward, and turning movements. It also controls the two clutch motors to push and pull the onboard rockers forward and backward and left and right, respectively, to control the rotation of the operator's cab, bucket movements, and robotic arm movements. In addition, the added power supply system independently powers several motors and cameras. Therefore, through the above-mentioned additions, there is no need to modify the internal hydraulic and electrical systems of the bucket excavator, resulting in minimal modifications to the excavator itself, almost zero equipment damage, rapid deployment, and low cost.
[0012] Secondly, it includes a remote control cockpit for remote control. The cockpit features simulated pedal modules with left and right pedals, both equipped with displacement sensors to collect continuous analog signals of pedal travel in real time. Simulated left and right cross joysticks are located on the left and right control boxes, respectively. Each joystick incorporates a Hall effect sensor, with a magnet embedded at its end and a Hall chip on its base. When the joystick is operated, it outputs a continuous analog signal through changes in magnetic flux. The CANUSB module receives and converts these continuous analog signals into digital signals. After data encapsulation, it generates a message conforming to the CAN protocol frame structure and uploads it to a small industrial computer in the control box, enabling digital parsing and transmission of operation commands. The small industrial computer collects control command signals transmitted via the CAN bus from the joysticks, buttons, and other human-machine interaction devices, performs data conversion and acquisition via the USB interface, and processes the signals in real time. The right control box is equipped with a communication device using 5G technology for highly reliable, low-latency transmission of remote control commands, ensuring the real-time performance and stability of remote control.
[0013] To further optimize the system and avoid forced pulling, the output end of the telescopic motor is connected to the pull rod on the pedal via a first flexible component. In this design, the first flexible component can be a flexible connector, such as a bundle of steel wires that can deflect, or an elastic connector, such as a flexible pad or damping rod. The extension or retraction of the telescopic motor pushes and pulls the pull rod on the pedal forward and backward. The pull rod on the pedal is a built-in structure within the excavator.
[0014] To further optimize the operation, a linkage mechanism is provided on the output end of the clutch motor to drive the cross-shaped movement of the onboard joystick. This linkage mechanism includes a first link and a second link. One end of the first link is sleeved on the output end of the clutch motor, and one end of the second link is hinged to the other end of the first link. The other end of the second link is connected to the onboard joystick via a second flexible element. In this solution, because the onboard joystick needs to provide precisely controlled torque to accurately adjust the distance the handle moves, thus enabling high-precision control operations such as minute changes in the bucket angle or precise blade height in engineering machinery, a clutch motor control is used to reduce instantaneous movement speed and improve control accuracy. Specifically, the clutch motor is connected to the onboard rocker arm via a linkage mechanism. One end of the first linkage is connected to the output end of the clutch motor, allowing its other end to rotate around its own end. One end of the second linkage is hinged to the first linkage, enabling its other end to rotate up and down. The other end of the second linkage is connected to the onboard rocker arm via a second flexible component. This second flexible component is a flexible element that allows for directional deflection, such as bundled steel wire, springs, universal joints with damping rods, silicone cylinders, etc. In this way, the two clutch motors can be driven independently to achieve forward / backward or left / right pushing / pushing.
[0015] Further optimized to facilitate simulation of actual cockpit operation, the remote-controlled cockpit includes a seat located in the center; the left and right control boxes are located on either side of the seat, and the pedal module is located at the bottom front of the seat. The seat is ergonomically designed and integrates left and right armrests; its backrest height and angle are flexibly adjustable.
[0016] Further optimized, a display module is also provided on the front side of the seat. The industrial control computer communicates with the display module via a multi-screen expansion module. The display module is used to display circumferential video information of the bucket excavator. Specifically, the display module includes six monitors that display image information from six directions: front, rear, left front, right front, left rear, and right rear. The small industrial control computer is connected to the multiple monitors via the multi-screen expansion module.
[0017] Further optimized, the bucket excavator is equipped with cameras on its front, rear, left front, right front, left rear, and right rear sides. These six cameras capture images of the machinery from six directions—front, rear, left front, right front, left rear, and right rear—and transmit them back to the remote control cabin via 5G wireless communication.
[0018] Further optimization involves distributing several first functional modules on the surface of the left control box. These modules include a horn knob, headlight switch, start button, and ignition stop button. The CANUSB module receives the output signals from these first functional modules and uploads them to the industrial control computer. Similarly, several second functional modules are distributed on the surface of the right control box. These modules include a throttle knob and an emergency stop button. The CANUSB module receives the output signals from these second functional modules and uploads them to the industrial control computer. In this design, the right control box externally houses the throttle knob, emergency stop button, and right cross lever, while the left control box externally houses the horn knob, start button, ignition stop button, headlight switch, and left cross lever. The functions and positions are consistent with those in the cab of construction machinery. All buttons utilize industrial-grade microswitches, and the knobs and headlight switches employ potentiometers. Rotation of the knobs and switches changes the resistance value of the potentiometer slider, outputting a continuous analog signal through a voltage divider circuit. All these functions can be controlled via parallel control lines, requiring minimal modification.
[0019] As a redundancy solution, the industrial control computer is located inside the right control box.
[0020] As a redundancy solution, the right control box is also equipped with a communication device that uses 5G transmission to send control signals from the industrial control computer to the airborne controller. The use of 5G technology ensures the real-time performance and stability of remote control by transmitting remote control commands with high reliability and low latency.
[0021] Further optimization involves adding a power supply system in the operator's cab of the bucket excavator to power the telescopic motor, clutch motor, onboard controller, and camera. It has its own battery pack with a total power exceeding the maximum peak power consumption of all onboard equipment operating simultaneously, while retaining a 30% margin. It also features a built-in DC-DC converter that enables stable conversion between 48V / 24V / 12V / 5V voltages and provides independent, isolated multi-channel power output to stably power onboard equipment operating at different voltages.
[0022] Further optimization is achieved in the airborne controller's functional architecture, which includes: command reception and parsing, command processing and logic control, actuator drive, status monitoring and data acquisition, safety logic and protection, data recording and diagnostics, and airborne video processing and transmission. The command reception and parsing module integrates a 5G wireless communication device. After stably and with low latency receiving operation commands from the remote cockpit, it parses the received data packets and converts them into command signals that the controller can process. The command processing and logic control module integrates a high-performance microprocessor, accurately mapping the parsed remote commands to the target state required by the corresponding actuator. For high-precision operation of the handle, the processor runs a closed-loop control algorithm. First, it collects the real-time position of the motor's built-in encoder or potentiometer, compares the target state with the actual feedback state, calculates the error value, calculates the precise control quantity based on the error, and sends it to the actuator drive module to drive the actuator to eliminate the error. The actuator drive module provides sufficient power output channels to drive the clutch motor and the telescopic motor. The status monitoring and data acquisition module is used to collect the real-time position of the motor's built-in encoder or potentiometer, the travel feedback signal, and the remaining battery power information of the power supply system. The safety logic and protection module continuously monitors the communication status with the remote cockpit. If no valid heartbeat packet or command is received within a preset time, it immediately cuts off the power to all motors and stops their operation. When it detects someone attempting to operate the equipment locally in remote mode, it issues an alarm and triggers a safety stop. It monitors the vehicle power supply voltage; if the voltage is too low or too high, it sequentially shuts down the system and enters protection mode. The data recording and diagnostic module records key operational data, system status, and alarm events. It provides a local USB interface for technicians to easily read fault codes, real-time data, and logs for system debugging and maintenance. LED indicators or a simple display screen indicate the controller power, communication status, operating mode, and fault information. The onboard video processing and transmission module can simultaneously acquire and access up to six video signals. After video encoding and compression, it transmits clear and stable on-site video footage to the remote cockpit via 5G wireless communication.
[0023] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0024] 1. The present invention provides an external remote control system for construction machinery. By adopting this solution, a control motor can be added directly to the operator's cab of the bucket excavator for remote control without making major modifications to the construction machinery. It has the advantages of high safety, almost zero equipment damage, rapid deployment and low cost.
[0025] 2. The present invention provides an external remote control system for engineering machinery, which integrates a remote control cockpit by setting control boxes on both sides of the seat, and setting pedals and several displays on the front side. This allows the remote control cockpit to be directly mounted on or placed in a ground control center while simulating the actual operating environment. Attached Figure Description
[0026] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0027] Figure 1 A schematic diagram of the remote-controlled cockpit provided by this utility model;
[0028] Figure 2 A schematic diagram of the vehicle-mounted control terminal provided by this utility model;
[0029] Figure 3 A schematic diagram of the functional architecture of the airborne controller provided by this utility model;
[0030] Figure 4 This is a schematic diagram of the airborne joystick control provided by this utility model.
[0031] The attached diagram shows the markings and corresponding component names:
[0032] 1-Clutch motor, 2-First connecting rod, 3-Second connecting rod, 4-Second flexible component, 5-Airborne rocker arm. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0034] Example: This example provides an external remote control system for construction machinery, such as... Figures 1-4 As shown, it includes:
[0035] The remote-controlled cockpit includes a pedal module, a left control box, and a right control box. The left control box has a left cross joystick, and the right control box has a right cross joystick. The left control box, the right control box, and the pedal module are all equipped with CANUSB modules. The CANUSB modules are used to receive pedal signals and joystick output signals and upload them to the industrial control computer.
[0036] The operator's cab of the bucket excavator is equipped with a vehicle-mounted control terminal, which includes a machine-mounted controller. Both pedals inside the bucket excavator are equipped with telescopic motors, the output of which is used to push and pull the levers on the pedals forward and backward. Both machine-mounted rocker arms 5 of the bucket excavator are equipped with two clutch motors 1, which are used to push and pull the machine-mounted rocker arms 5 forward and backward and left and right, respectively.
[0037] The airborne controller is used to receive control signals from the industrial computer and control the operation of the telescopic motor and the clutch motor 1.
[0038] Compared to existing technologies where remote control systems for construction machinery require significant modifications to the hydraulic and electrical systems, this invention provides an external remote control system for construction machinery. This solution allows for remote operation by adding a control motor directly to the operator's cab of the bucket excavator, without requiring major modifications to the machinery. It offers advantages such as high safety, virtually zero equipment damage, rapid deployment, and low cost. In the specific design, an onboard controller is installed in the operator's cab of the bucket excavator, along with two telescopic motors, four clutch motors 1, and a power supply system. The onboard controller receives remote control signals and controls the telescopic motors to extend and retract the levers on the pedals, thereby controlling the bucket excavator's forward, backward, and turning movements. It also controls the two clutch motors 1 to push and pull the onboard rocker arm 5 forward and backward and left and right, respectively, to control the rotation of the bucket excavator's operator's cab, bucket movements, and robotic arm movements. In addition, the added power supply system independently powers several motors and cameras. Therefore, through the above-mentioned additions, there is no need to modify the internal hydraulic and electrical systems of the bucket excavator, resulting in minimal modifications to the bucket excavator itself, almost zero equipment damage, rapid deployment, and low cost.
[0039] Secondly, it includes a remote control cockpit for remote control. The cockpit features simulated pedal modules with left and right pedals, both equipped with displacement sensors to collect continuous analog signals of pedal travel in real time. Simulated left and right cross joysticks are located on the left and right control boxes, respectively. Each joystick incorporates a Hall effect sensor, with a magnet embedded at its end and a Hall chip on its base. When the joystick is operated, it outputs a continuous analog signal through changes in magnetic flux. The CANUSB module receives and converts these continuous analog signals into digital signals. After data encapsulation, it generates a message conforming to the CAN protocol frame structure and uploads it to a small industrial computer in the control box, enabling digital parsing and transmission of operation commands. The small industrial computer collects control command signals transmitted via the CAN bus from the joysticks, buttons, and other human-machine interaction devices, performs data conversion and acquisition via the USB interface, and processes the signals in real time. The right control box is equipped with a communication device using 5G technology for highly reliable, low-latency transmission of remote control commands, ensuring the real-time performance and stability of remote control.
[0040] In some embodiments, to avoid hard pulling and increase cushioning, the output end of the telescopic motor is connected to the pull rod on the pedal via a first flexible element. In this solution, the first flexible element can be a flexible connector, such as a bundle of steel wires that can deflect its own direction, or an elastic connector, such as a flexible pad or damping rod, which pushes and pulls the pull rod on the pedal back and forth by extending or retracting the telescopic motor; the pull rod on the pedal is a built-in structure of the excavator.
[0041] In some embodiments, such as Figure 4As shown, to drive the cross-shaped movement of the onboard rocker arm 5, a linkage mechanism is provided on the output end of the clutch motor 1. The linkage mechanism includes a first link 2 and a second link 3. One end of the first link 2 is sleeved on the output end of the clutch motor 1, and one end of the second link 3 is hinged to the other end of the first link 2. The other end of the second link 3 is connected to the onboard rocker arm 5 via a second flexible member 4. In this design, because the onboard rocker arm 5 needs to provide precisely controlled torque to accurately adjust the distance the handle moves, thus enabling operations requiring high precision control, such as minute changes in the bucket angle or precise blade height, are achieved, the clutch motor 1 is used for control to reduce instantaneous movement speed and improve control accuracy. Specifically, the clutch motor 1 is connected to the onboard rocker arm 5 via a linkage mechanism. One end of the first linkage 2 is connected to the output end of the clutch motor 1, allowing its other end to rotate around its own end. One end of the second linkage 3 is hinged to the first linkage 2, enabling its other end to rotate up and down. The other end of the second linkage 3 is connected to the onboard rocker arm 5 via a second flexible component 4. The second flexible component 4 is a flexible component with flexibility, allowing its own direction to deflect, such as bundled steel wire winding, springs, universal joints with damping rods, silicone cylinders, etc. In this way, the two clutch motors 1 can be driven separately to achieve forward / backward or left / right pushing / pushing.
[0042] In some embodiments, to facilitate simulation of actual cockpit operation, the remote-controlled cockpit includes a seat located in the center; the left and right control boxes are respectively located on both sides of the seat, and the pedal module is located at the bottom front of the seat. The seat is ergonomically designed and integrates left and right armrests, and its backrest height and angle are flexibly adjustable.
[0043] In some embodiments, a display module is also provided on the front side of the seat. The industrial control computer is communicatively connected to the display module via a multi-screen expansion module. The display module is used to display circumferential video information of the bucket excavator. Specifically, the display module includes six configured displays showing image information from six directions: front, rear, left front, right front, left rear, and right rear of the construction machinery. The small industrial control computer is connected to multiple displays via a multi-screen expansion module, such as... Figure 1 As shown.
[0044] In some embodiments, cameras are installed on the front, rear, left front, right front, left rear, and right rear sides of the bucket excavator. These six cameras capture images of the machinery from six directions: front, rear, left front, right front, left rear, and right rear, and transmit these images back to the remote control cabin via 5G wireless communication. Figure 2 As shown.
[0045] In some embodiments, the surface of the left control box is further distributed with several first functional modules, including a horn knob, a headlight switch, a start button, and an engine stop button. The CANUSB module is used to receive the output signals of the several first functional modules and upload them to the industrial control computer. The surface of the right control box is further distributed with several second functional modules, including a throttle knob and an emergency stop button. The CANUSB module is used to receive the output signals of the several second functional modules and upload them to the industrial control computer. In this solution, the right control box is externally equipped with a throttle knob, an emergency stop button, and a right cross lever, while the left control box is externally equipped with a horn knob, a start button, an engine stop button, a headlight switch, and a left cross lever. The functions and positions are arranged in the same way as in the cab of construction machinery. Figure 1 As shown, all the buttons mentioned above use industrial-grade microswitches, and the knobs and headlight switches use potentiometers. The rotation of the knobs and switches causes the potentiometer slider to change the resistance value, and a continuous analog signal is output through the voltage divider circuit. All the above functions can be controlled by parallel control lines, with minimal modifications.
[0046] In some embodiments, the industrial computer is located inside the right control box.
[0047] In some embodiments, the right control box is further equipped with a communication device that uses 5G transmission and is used to send control signals from the industrial computer to the airborne controller. The use of 5G technology ensures the real-time performance and stability of remote control by transmitting remote control commands in a highly reliable and low-latency manner.
[0048] In some embodiments, a power supply system added to the operator's cab of the bucket excavator is used to power the telescopic motor, clutch motor 1, onboard controller, and camera. It has its own battery pack and the total power is higher than the maximum peak power consumption when all onboard equipment is working at the same time, with a sufficient margin of 30%. It has a built-in DC-DC converter that can achieve stable conversion of 48V / 24V / 12V / 5V voltage and provides independent and isolated multiple power output channels to stably power onboard equipment with different operating voltages.
[0049] In some embodiments, the airborne controller functional architecture includes: command reception and parsing, command processing and logic control, actuator driving, status monitoring and data acquisition, safety logic and protection, data logging and diagnostics, and airborne video processing and transmission. For example... Figure 3As shown, the instruction receiving and parsing module incorporates a 5G wireless communication device. After receiving operation instructions from the remote cockpit stably and with low latency, it parses the received data packets and converts them into instruction signals that can be processed internally by the controller. The instruction processing and logic control module incorporates a high-performance microprocessor, which accurately maps the parsed remote instructions to the target state that the corresponding actuator needs to achieve. For high-precision operation of the handle, the processor runs a closed-loop control algorithm. First, it collects the real-time position of the motor's built-in encoder or potentiometer, compares the target state with the actual feedback state, and calculates the error value. Based on the error, it calculates a precise control quantity and sends it to the actuator drive module to drive the actuator to eliminate the error. The actuator drive module provides sufficient power output channels to drive the clutch motor 1 and the telescopic motor. The status monitoring and data acquisition module is used to collect the real-time position of the motor's built-in encoder or potentiometer, the travel feedback signal, and the remaining battery power information of the power supply system. The safety logic and protection module continuously monitors the communication status with the remote cockpit. If no valid heartbeat packet or command is received within a preset time, it immediately cuts off the power to all motors and stops their operation. When it detects someone attempting to operate the equipment locally in remote mode, it issues an alarm and triggers a safety stop. It monitors the vehicle power supply voltage; if the voltage is too low or too high, it sequentially shuts down the system and enters protection mode. The data recording and diagnostic module records key operational data, system status, and alarm events. It provides a local USB interface for technicians to easily read fault codes, real-time data, and logs for system debugging and maintenance. LED indicators or a simple display screen indicate the controller power, communication status, operating mode, and fault information. The onboard video processing and transmission module can simultaneously acquire and access up to six video signals. After video encoding and compression, it transmits clear and stable on-site video footage to the remote cockpit via 5G wireless communication.
[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. An external remote control system for construction machinery, characterized in that, include: The remote-controlled cockpit includes a pedal module, a left control box, and a right control box. The left control box has a left cross joystick, and the right control box has a right cross joystick. The left control box, the right control box, and the pedal module are all equipped with CANUSB modules. The CANUSB modules are used to receive pedal signals and joystick output signals and upload them to the industrial control computer. The operator's cab of the bucket excavator is equipped with a vehicle-mounted control terminal, which includes a machine-mounted controller. Each of the two pedals inside the bucket excavator is equipped with a telescopic motor, the output of which is used to push and pull the levers on the pedals forward and backward. Each of the two machine-mounted rocker arms of the bucket excavator is equipped with two clutch motors, which are used to push and pull the machine-mounted rocker arms forward and backward and left and right, respectively. The airborne controller is used to receive control signals from the industrial computer and control the operation of the telescopic motor and the clutch motor.
2. The external remote control system for construction machinery according to claim 1, characterized in that, The output end of the telescopic motor is connected to the pull rod on the pedal via a first flexible component.
3. The external remote control system for construction machinery according to claim 1, characterized in that, A linkage mechanism is provided on the output end of the clutch motor (1). The linkage mechanism includes a first link (2) and a second link (3). One end of the first link (2) is sleeved on the output end of the clutch motor (1). One end of the second link (3) is hinged to the other end of the first link (2). The other end of the second link (3) is connected to the airborne rocker arm (5) through a second flexible member (4).
4. The external remote control system for construction machinery according to claim 1, characterized in that, The remote-controlled cockpit includes a seat located in the middle; the left control box and the right control box are located on both sides of the seat, and the pedal module is located at the bottom of the front side of the seat.
5. The external remote control system for construction machinery according to claim 4, characterized in that, The seat is also equipped with a display module. The industrial control computer is connected to the display module via a multi-screen expansion module. The display module is used to display circumferential video information of the bucket excavator.
6. The external remote control system for construction machinery according to claim 5, characterized in that, Cameras are installed on the front, rear, left front, right front, left rear, and right rear sides of the bucket excavator.
7. The external remote control system for construction machinery according to claim 1, characterized in that, The surface of the left control box is also distributed with several first functional modules, including a horn knob, a headlight switch, a start button and an engine stop button. The CANUSB module is used to receive the output signals of the several first functional modules and upload them to the industrial control computer.
8. The external remote control system for engineering machinery according to claim 1, characterized in that, The surface of the right control box is also distributed with several second functional modules, including a throttle knob and an emergency stop button. The CANUSB module is used to receive the output signals of the several second functional modules and upload them to the industrial control computer.
9. The external remote control system for engineering machinery according to claim 1, characterized in that, The industrial control computer is located inside the right control box.
10. The external remote control system for engineering machinery according to claim 1, characterized in that, The right control box is also equipped with a communication device, which uses 5G transmission and is used to send control signals from the industrial control computer to the airborne controller.