A collision avoidance device for a construction machine

Abstract

This application provides a collision avoidance device for engineering machinery, belonging to the technical field of collision avoidance devices, which solves the technical problem that existing engineering machinery vehicles are prone to danger during driving. It includes a detection device and a display device. The detection device includes a detection device frame, a detection radar on the surface of the frame, LED panels on both sides of the radar, a first buzzer inside the frame, and a first connector at the bottom of the frame. The display device includes a display housing, a second connector, and a cable connection between the first and second connectors. A touch screen is located inside the housing, and an alarm light and a second buzzer are connected to the housing. It also includes a controller, which includes a CAN bus module, a digital input port, a data processing module, and a digital output port. The controller is cable-connected to a solenoid valve controlling vehicle braking, the first buzzer, the second buzzer, the touch screen, the detection radar, and the LED panels.

Description

Technical Field

[0001] This application belongs to the technical field of anti-collision devices, and more specifically, relates to an anti-collision device for engineering machinery. Background Technology

[0002] Construction machinery vehicles face numerous challenges during operation, including noisy work environments, frequent personnel movement, insufficient lighting, and driver fatigue, especially at night. Furthermore, drivers struggle to react quickly to obstacles in front of or behind the vehicle. These factors contribute to the high risk associated with construction vehicle operations. Utility Model Content

[0003] To address the technical problems that make existing construction machinery vehicles prone to accidents during operation, a collision avoidance device for construction machinery is provided.

[0004] To achieve the above objectives, the technical solution adopted in this application is: an anti-collision device for engineering machinery, comprising: a detection device and a display device. The detection device includes a detection device frame, a detection radar is provided on the surface of the detection device frame, and LED panels are provided on both sides of the detection radar. A first buzzer and a controller are provided inside the detection device frame, and a first connector is provided at the bottom of the detection device frame. The controller includes a CAN bus module, a switch input port, a data processing module, and a switch output port. The controller is connected to the first buzzer, a second buzzer, a touch display, the detection radar, and the LED panels via cables.

[0005] The LED panel contains an LED driver unit, and the controller is connected to the LED driver unit via a cable. The LED driver unit is also connected to the LED panel via a cable.

[0006] The display device includes a display housing, a second connector on the display housing, a first connector and a second connector connected by a cable, a touch display, an alarm light and a second buzzer on the display housing, and a mounting assembly on one side of the display housing.

[0007] Preferably, the mounting assembly includes a base, a bracket rotatably connected to the base, a bracket ball joint rotatably connected to the bracket, a cover plate connected to the bracket ball joint, and the cover plate connected to the display housing.

[0008] Preferably, both the detection device and the display device are equipped with waterproof pads.

[0009] The specific working principle of this utility model is as follows:

[0010] This invention designs a collision avoidance device for engineering machinery. In the obstacle detection stage, a millimeter-wave radar continuously scans the area ahead and transmits obstacle distance and angle data to the controller via a CAN bus using a communication protocol. The controller determines the risk level based on a safety threshold preset by the driver (set on the touchscreen display). For example, within 3 meters: the LED panel is triggered, dynamically displaying the word "Danger," the buzzer sounds intermittently, and the warning light flashes at a low frequency; within 1 meter: the buzzer sounds continuously, the warning light flashes at a high frequency, and the controller controls a solenoid valve via a switching output. This solenoid valve controls the vehicle's brake cylinder, forcing the vehicle to brake.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention designs an anti-collision device for engineering machinery, used to detect obstacles in front of and behind the vehicle. Specifically, it uses millimeter-wave radar to detect whether an obstacle has entered the detection zone. This detection zone can be set by software. The controller can automatically determine the safety factor based on the distance from the vehicle and control the operation of sound and light alarms, power cut-off, and braking. This can greatly reduce the driver's workload. Furthermore, the device has high sensitivity and fast response speed, which greatly improves the safety factor of engineering vehicles during operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the exploded structure of the detection device of this utility model;

[0015] Figure 2 This is an exploded view of the display device of this utility model;

[0016] Figure 3 This is a schematic diagram of the control principle of the controller of this utility model.

[0017] Explanation of symbols in the diagram:

[0018] 1. Detection device frame; 2. Detection radar; 3. LED panel; 4. First buzzer; 5. First connector; 6. Display housing; 7. Second connector; 8. Touch display; 9. Alarm light; 10. Second buzzer; 11. Base; 12. Bracket; 13. Bracket ball joint; 14. Cover plate. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] like Figure 1-3 As shown, this application provides an anti-collision device for engineering machinery, which includes a detection device and a display device. The detection device includes a detection device frame 1, a detection radar 2 connected to the surface of the detection device frame 1, LED panels 3 on both sides of the detection radar 2, a first buzzer 4 inside the detection device frame 1, and a first connector 5 at the bottom of the detection device frame 1. The detection device also includes a controller, which includes a CAN bus module, a switch input port, a data processing module, and a switch output port. The controller is cable-connected to the first buzzer 4, the second buzzer 10, the touch display 8, the detection radar 2, and the LED panels 3.

[0022] The display device includes a display housing 6, a second connector 7 on the display housing 6, a first connector 5 and a second connector 7 connected by a cable, a touch display 8 inside the display housing 6, an alarm light 9 and a second buzzer 10 connected to the display housing 6, and a display device mounting assembly connected to one side of the display housing 6.

[0023] To clearly illustrate how the above-mentioned technical effects are achieved and to facilitate accurate understanding of the technical details of this solution by those skilled in the art, the following will, in conjunction with the accompanying drawings, elaborate on the specific component models and composition structure of an engineering machinery anti-collision device.

[0024] The detection radar described in this application is a millimeter-wave radar, model SR73F, with a detection range of 0.2-40 meters. The output signal follows the CAN protocol and is installed at the front end of the detection device frame, connected to the controller via the CAN bus.

[0025] The LED panel described in this application uses a P8 unit board with a HUB75 interface and a built-in LED driver unit that supports RS485 / CAN communication. The driver unit is connected to the controller via a CAN bus, enabling dynamic light and text warnings.

[0026] The controller described in this application adopts an HZ-C35B controller (compatible with STM32F407 core), integrating a CAN bus module, 8-channel switch output (for controlling external devices such as solenoid valves, buzzers, and alarm lights), and 4-channel switch input (for pull-cord switch signals). The controller supports PWM output and can adjust the LED brightness.

[0027] The first and second buzzers described in this application are both model KS-2616TD12WB (12V DC, sound pressure level ≥85dB), installed in the detection device frame and display housing, and triggered by the controller's switch output port.

[0028] The alarm light described in this application is model LTE-5061J, a yellow strobe light (12V, IP65 waterproof), whose flashing frequency is controlled by the controller's switch output port.

[0029] The touch display described in this application (supporting CAN bus and capacitive touch) has built-in display software that can display obstacle distances in real time, set radar parameters (detection angle, distance threshold), and communicate with the controller via CAN bus.

[0030] In the technical solution adopted in this embodiment, a detection device is set up to detect obstacles in front of the construction machinery vehicle. Specifically, the detection work is achieved by the detection radar 2. The LED panel 3 can play a warning role. When an obstacle is detected to enter the warning range, it will remind you of the word "danger" and be accompanied by flashing red and blue lights to achieve the warning effect. A first buzzer 4 is set up to sound a warning when an obstacle is detected to enter the warning range. A first connector 5 is set up to connect with a second connector 7, thereby connecting the detection device and the display device to realize the signal transmission between the detection device and the display device. It should be noted that in this embodiment, the detection radar 2 is a millimeter-wave radar.

[0031] The display device can display the detection information for the driver's convenience. Specifically, the touch display 8 can display obstacle information, modify the detection radar parameters, control the radar detection switch and display fault icons. The warning light 9 flashes when an obstacle enters the warning range, and the second buzzer 10 sounds a warning when an obstacle enters the warning range. It should be noted that the first buzzer 4, the second buzzer 10 and the warning light 9 are all equipped with push-button switches to select whether to perform the sounding or flashing function. The installation components can be set to facilitate the installation of the touch display 8 at various angles, making it convenient for the driver to observe the touch display 8.

[0032] The controller can control the first buzzer 4, the second buzzer 10, the touch display 8, the detection radar 2, and the LED panel 3. It can also collect millimeter-wave radar information via the CAN bus. Furthermore, the control signal from the touch display 8 can be input to the controller via the CAN bus. The controller can filter the signal from the detection radar 2, thereby adjusting its detection angle and range. The detection signal from the detection radar 2 is transmitted to the controller via the CAN bus, and then to the touch display 8, causing the touch display 8 to display the detection information. The controller can also control the first buzzer 4 and the second buzzer 10 to determine whether they sound. Additionally, the controller can control the display content of the LED panel 3, enabling it to better fulfill its warning function.

[0033] Furthermore, in this embodiment, the LED panel 3 is provided with an LED driving unit, and the controller is connected to the LED driving unit by cable.

[0034] In the technical solution adopted in this embodiment, the controller controls the LED driving unit through the CAN bus, and controls the LED panel through the LED driving unit, thereby controlling the display of the LED panel 3.

[0035] Furthermore, in this embodiment, the mounting assembly includes a base 11, a bracket 12 rotatably connected to the base 11, a bracket ball head rotatably connected to the bracket 12, a cover plate 14 connected to the bracket ball head, and the cover plate 14 connected to the display housing 6.

[0036] In the technical solution adopted in this embodiment, the base 11 is connected to the engineering machinery vehicle. The bracket 12 is rotatably connected to the base 11, and the bracket 12 is rotatably connected to the bracket ball head, so as to adjust the angle and height of the cover plate 14, thereby adjusting the angle and height of the touch display 8.

[0037] Furthermore, in this embodiment, the controller is an STM32 controller.

[0038] Furthermore, in this embodiment, both the detection device frame 1 and the display housing 6 are waterproof housings.

[0039] Furthermore, in this embodiment, the display device is fixed to the cab by a mounting assembly (base + bracket ball head), supporting 360° rotation adjustment to adapt to the viewing angle requirements of different vehicle models.

[0040] Furthermore, in this embodiment, the controller has a built-in filtering algorithm to eliminate radar false alarm signals; the CAN communication protocol adopts the J1939 standard to ensure compatibility with the vehicle bus.

[0041] It should be noted that the braking method for construction machinery is as follows: For construction machinery with a fully hydraulic chassis, since the travel motor and brake are directly controlled by solenoid valves, the travel solenoid valve and brake solenoid valve can be controlled by the controller described in this invention outputting electrical signals. For construction machinery with a mechanical chassis, hydraulic cylinders or pneumatic cylinders are installed at the clutch pedal and brake pedal and connected to them. By setting up two solenoid valves, the action of the hydraulic cylinders or pneumatic cylinders connected to the clutch pedal and brake pedal can be controlled respectively, thereby further realizing the electric control braking of the mechanical chassis construction machinery.

[0042] The working process of this utility model is as follows: the detection distance and detection angle of the radar are set through the touch display 8. The detection radar 2 continuously detects obstacles and transmits the detection information to the controller. The controller processes the signal according to the set detection distance and angle and transmits the processed signal to the touch display 8 for the driver to observe. When the detection radar 2 detects an obstacle within the set range, it transmits the signal to the controller, which then controls the first buzzer 4 and the second buzzer 10 to sound. At the same time, it controls the alarm light 9 and the LED panel 3 to flash to warn the driver and the area around the construction vehicle. When an obstacle is detected to enter an extremely dangerous range, the controller can control the vehicle to brake, thereby ensuring the safety of the construction machinery vehicle.

[0043] This utility model designs an anti-collision device for engineering machinery, used to detect obstacles in front of and behind the vehicle. Specifically, it uses a detection radar 2 in conjunction with a controller to detect whether an obstacle has entered the detection range. It can also perform audible and visual alarms, power cut-off, and braking based on the distance from the vehicle, which can greatly reduce the driver's workload. In addition, the device has high sensitivity and fast response speed, which greatly improves the safety factor of engineering vehicles during operation.

[0044] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A collision avoidance device for engineering machinery, characterized in that, It is equipped with a detection device and a display device. The detection device includes a detection device frame, a detection radar connected to the surface of the detection device frame, LED panels connected to both sides of the detection radar, a first buzzer connected inside the detection device frame, and a first connector provided at the bottom of the detection device frame. The display device includes a display housing, a second connector on the display housing, a cable connecting the first connector and the second connector, a touch display inside the display housing, an alarm light and a second buzzer connected to the display housing, and a mounting assembly connected to one side of the display housing. It also includes a controller, which includes a CAN bus module, a digital input port, a data processing module, and a digital output port. The controller is connected to a first buzzer, a second buzzer, a touch display, a detection radar, and an LED panel cable.

2. The anti-collision device for engineering machinery according to claim 1, characterized in that, The LED panel is equipped with an LED driving unit, the controller is connected to the LED driving unit by cable, and the LED driving unit is connected to the LED panel by cable.

3. The anti-collision device for engineering machinery according to claim 1, characterized in that, The mounting assembly includes a base, a bracket rotatably connected to the base, a bracket ball joint rotatably connected to the bracket, a cover plate connected to the bracket ball joint, and the cover plate connected to the display housing.

4. The anti-collision device for engineering machinery according to claim 1, characterized in that, The controller is an STM32 controller.

5. The anti-collision device for engineering machinery according to claim 1, characterized in that, Both the detection device frame and the display housing are waterproof.

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