A secondary start and rolling accident early warning system and method for a front blind area of a muck car

Abstract

The present application relates to a kind of blind area secondary start rolling accident early warning system in front of slag car, including blind area automatic brake system, sensing module and control module;The sensing module is used to collect real-time vehicle speed, identify whether there is pedestrian or non-motor vehicle under the vehicle head, detect whether the door is opened, detect whether the hand brake is pulled up, and send signal to the control module, the control module is used to analyze the signal sent by sensing module and issue corresponding instruction;The blind area automatic brake system is used to receive and execute the instruction issued by the controller, while the execution signal is fed back to the controller.The early warning system can identify whether there is pedestrian or non-motor vehicle under the vehicle head before the driver secondary start after the automatic brake system triggers, remind the driver to carry out safety inspection before secondary start, prevent the driver from secondary start in the case of safety hazard, so as to effectively prevent the rolling accident in front of slag car blind area after secondary start.

Description

Technical Field

[0001] This invention belongs to the field of auxiliary driving technology for dump trucks, specifically relating to a warning system and method for accidents caused by secondary starting and crushing of dump trucks in the blind spot in front. Technical Background

[0002] Dump trucks are heavy-duty vehicles used to transport waste materials, playing a significant role in construction engineering and urban sanitation. Due to their high cab position and long body, dump trucks create numerous blind spots during operation, seriously threatening the safety of pedestrians and other vulnerable road users. To address this issue, Chinese patent CN201921433225.0 proposes a solution for a right-side blind spot warning system for dump trucks. This system mainly consists of a central controller, radar sensors, a camera, an alarm device, a braking system, and a display screen. During operation, the radar sensors and camera monitor the vehicle's blind spots. For dump trucks equipped with blind spot automatic braking systems, although the automatic braking system can be activated when pedestrians and non-motorized vehicles are detected, when the driver is distracted, the driver may only feel the sudden braking and not notice the pedestrians or non-motorized vehicles. If a pedestrian or non-motorized vehicle is knocked down and pulled into the area under the front of the truck, the driver cannot see the area under the front of the truck, and the blind spot automatic braking system will not detect the presence of the pedestrian under the front of the truck. Therefore, the alarm device and the blind spot automatic braking system will not be triggered again, and the driver may choose to restart, causing serious traffic accidents such as running over pedestrians or non-motorized vehicles. Therefore, this system can effectively prevent a collision accident caused by a blind spot, but it is difficult to prevent accidents caused by restarting after braking from a stopped state. Summary of the Invention

[0003] To address the above problems, this invention proposes a warning system and method for crushing accidents in the blind spot of a dump truck during a second start. After the automatic braking system is triggered, the system can identify whether there are pedestrians or non-motorized vehicles under the front of the truck before the driver starts the second start, thereby preventing crushing accidents in the blind spot after the dump truck starts the second start.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention proposes a blind spot secondary start-up crushing accident early warning system for dump trucks, including a blind spot automatic braking system, a sensing module, and a control module. The sensing module is used to collect real-time vehicle speed, identify whether there are pedestrians or non-motorized vehicles under the front of the truck, detect whether the doors are open, and detect whether the handbrake is engaged, and sends the signals to the control module. The control module is used to analyze the signals sent by the sensing module and issue commands. The blind spot automatic braking system is used to receive and execute the commands issued by the controller, and at the same time feed back the execution signals to the controller.

[0006] Preferably, the sensing module includes a vehicle speed sensor, a door switch sensor, a handbrake detection device, and a pedestrian and non-motorized vehicle detection module. The vehicle speed sensor is used to acquire the real-time vehicle speed and send the vehicle speed signal to the control module. The door switch sensor is used to detect whether the driver has opened the door and send the detection signal to the control module. The handbrake detection device is used to detect whether the handbrake is engaged and send the detection signal to the control module. The pedestrian and non-motorized vehicle detection module is used to identify whether there are pedestrians or non-motorized vehicles and send the identification signal to the control module.

[0007] Preferably, the pedestrian and non-motorized vehicle detection module includes a life detection millimeter-wave radar, a pedestrian image recognition device, and multiple ultrasonic radars. The life detection millimeter-wave radar is used to detect whether there are vital signs in the area below the front of the vehicle. The ultrasonic radar is used to detect whether there are pedestrians or non-motorized vehicles in the area below the front of the vehicle. The pedestrian image recognition device identifies whether there are pedestrians below the front of the vehicle according to a general human shape algorithm.

[0008] Preferably, the life detection millimeter-wave radar and the pedestrian image recognition device are installed below the front of the vehicle on the front side of the two front wheels, and the ultrasonic radar is installed in the non-tire area below the front of the vehicle.

[0009] Preferably, the control module includes a central controller, which is used to receive and analyze signals from the vehicle speed sensor, door switch sensor, handbrake detection device, life detection millimeter-wave radar, pedestrian image recognition device, and multiple ultrasonic radars, and issue commands.

[0010] Based on the above-mentioned early warning system for secondary starting and crushing accidents in the blind spot of a dump truck, this invention also proposes a method for early warning of secondary starting and crushing accidents in the blind spot of a dump truck, comprising the following steps:

[0011] S1. The central controller in the control module receives a signal indicating whether the blind spot automatic braking system is activated. If the central controller receives a signal that the blind spot automatic braking system is not activated, the vehicle continues to drive. If the central controller receives a signal that the blind spot automatic braking system is activated, it enters S2.

[0012] S2. The central controller analyzes the signal sent by the vehicle speed sensor and determines whether the vehicle should continue to move or send a detection command to the pedestrian and non-motorized vehicle detection module; if a detection command is sent to the pedestrian and non-motorized vehicle detection module, then proceed to S3.

[0013] S3. Upon receiving instructions from the central controller, the pedestrian and non-motorized vehicle detection module uses a life detection millimeter-wave radar to detect whether there are signs of life in objects in the area below the front of the vehicle; a pedestrian image recognition device to detect whether there are pedestrians in the target area; and an ultrasonic radar to detect whether there are pedestrians or non-motorized vehicles in the non-tire area. After the life detection millimeter-wave radar, pedestrian image recognition device, and ultrasonic radar all send their detection signals to the central controller, the process proceeds to S4.

[0014] S4. The central controller analyzes the received detection signals and issues commands.

[0015] Preferably, the method in S2 for determining whether the vehicle should continue driving or send a detection command to the pedestrian and non-motorized vehicle detection module is as follows:

[0016] If the vehicle cannot stop within 3 seconds, it continues to move; if the vehicle can stop within 3 seconds, and remains stationary for more than 2 seconds after stopping, the central controller sends a command to the pedestrian and non-motorized vehicle detection module.

[0017] Preferably, S4 includes the following sub-steps:

[0018] S41. The central controller analyzes the three detection signals emitted by the life detection millimeter-wave radar, the pedestrian image recognition device, and the ultrasonic radar.

[0019] If none of the three detection signals are met, the central controller sends a release signal to the blind spot automatic braking system when the driver restarts.

[0020] If any of the three detection signals is satisfied, the central controller controls the alarm to issue a voice prompt to the driver, reminding the driver to observe whether there are pedestrians or non-motorized vehicles, and issues a detection command to the door switch sensor, entering S42;

[0021] If any two or more of the three detection signals are satisfied, the central controller controls the alarm device to issue an audible and visual warning and issues a detection command to the door switch sensor, thus entering S42;

[0022] S42. When the central controller receives the detection signal from the door switch sensor, if no door opening signal is detected when the driver starts the vehicle for the second time, the central controller sends a braking command to the blind spot automatic braking system to keep the vehicle in a braking state and controls the alarm device to continue working; if a door opening signal is detected, then proceed to S43.

[0023] S43. The central controller sends a detection command to the handbrake detection device. The handbrake detection device detects whether the handbrake is engaged. If the handbrake is engaged, the central controller sends a command to the blind spot automatic braking system to release the brake, and the alarm device stops working. If the handbrake is not engaged, the blind spot automatic braking system continues to brake, and the alarm device continues to work.

[0024] Compared with the prior art, the advantages of the present invention are as follows:

[0025] This invention, after the automatic blind spot braking system of a dump truck is triggered, before the driver starts the vehicle a second time, uses a life detection millimeter-wave radar, a pedestrian image recognition device, and an ultrasonic radar in the sensing module to detect whether there are pedestrians or non-motorized vehicles in the blind spot under the front of the vehicle. The control module receives and analyzes the detection signals sent by the sensing module, and controls whether the automatic blind spot braking system releases the brakes and whether the alarm device issues a prompt when starting the vehicle a second time. This can promptly remind the driver to check whether there are pedestrians or non-motorized vehicles in the blind spot in front of the vehicle, and prevent the driver from starting the vehicle a second time if there is a safety hazard, effectively preventing crushing accidents during the second start. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the early warning system of the present invention;

[0027] Figure 2 This is a flowchart of the early warning method of the present invention; Specific Implementation

[0028] 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.

[0029] refer to Figure 1This invention proposes a blind spot secondary start-up crushing accident early warning system for dump trucks, including a blind spot automatic braking system, a sensing module, and a control module. The sensing module includes a vehicle speed sensor, a door open / close sensor, a handbrake detection device, a life detection millimeter-wave radar, a pedestrian image recognition device, and an ultrasonic radar. The control module includes a central controller. The vehicle speed sensor detects real-time vehicle speed; the door open / close sensor detects whether the driver has opened the door; the handbrake detection device detects whether the handbrake is engaged; and the life detection millimeter-wave radar is installed below the front of the truck on both front wheels. To detect whether there are any living signs under the front of the vehicle, the pedestrian image recognition device is also installed under the front of the vehicle on the sides in front of the two front wheels to detect whether there are any pedestrians under the front of the vehicle. The ultrasonic radar is installed in the non-tire area under the front of the vehicle to detect whether there are any pedestrians or non-motorized vehicles under the front of the vehicle. The central controller is used to receive and analyze the signals emitted by the vehicle speed sensor, door switch sensor, handbrake detection device, life detection millimeter-wave radar, pedestrian image recognition device, and ultrasonic radar, and issue corresponding instructions based on the analysis results. The blind spot automatic braking system is used to receive and execute the instructions issued by the central controller.

[0030] refer to Figure 2 This paper also proposes a method for early warning of accidents caused by dump trucks running over each other during a second start in the blind spot in front of them, which includes the following steps:

[0031] S1. For dump trucks equipped with a blind spot automatic braking system, the central controller in the control module receives a signal indicating whether the blind spot automatic braking system is activated. If the central controller receives a signal indicating that the blind spot automatic braking system is not activated, the truck continues to move forward; if the central controller receives a signal indicating that the blind spot automatic braking system is activated, it proceeds to S2.

[0032] S2. The central controller analyzes the signal sent by the vehicle speed sensor. If the vehicle cannot stop within 3 seconds, the vehicle continues to move. If the vehicle can stop within 3 seconds and remains stationary for more than 2 seconds after stopping, the central controller sends an instruction to the pedestrian and non-motorized vehicle detection module and enters S3.

[0033] S3. Upon receiving instructions from the central controller, the pedestrian and non-motorized vehicle detection module uses a life detection millimeter-wave radar to detect whether there are signs of life in the area below the front of the vehicle; the pedestrian image recognition device uses a general human shape algorithm to detect whether there are pedestrians below the front of the vehicle; and the ultrasonic radar detects whether there are pedestrians or non-motorized vehicles in the non-tire area below the front of the vehicle. After the life detection millimeter-wave radar, pedestrian image recognition device, and ultrasonic radar all send their detection signals to the central controller, the process proceeds to S4.

[0034] S4. The central controller analyzes the received detection signals and issues commands, specifically including:

[0035] S41. The central controller analyzes the three detection signals emitted by the life detection millimeter-wave radar, the pedestrian image recognition device, and the ultrasonic radar.

[0036] If none of the three detection signals are met, the system assumes that there are no pedestrians or non-motorized vehicles under the front of the vehicle. When the driver restarts, the central controller sends a release signal to the blind spot automatic braking system, allowing the driver to restart smoothly.

[0037] If any of the three detection signals is satisfied, the central controller controls the alarm device to issue a voice prompt to the driver, reminding the driver to observe whether there are pedestrians or non-motorized vehicles in the vehicle's blind spot, and issues a detection command to the door switch sensor, entering S42;

[0038] If any two or more of the three detection signals are satisfied, the system assumes that there is a pedestrian or non-motorized vehicle under the front of the vehicle, upgrades the warning to the driver, and the central controller controls the alarm device to issue an audible and visual warning to alert the driver, and issues a detection command to the door switch sensor, entering S42.

[0039] S42. When the central controller receives the detection signal from the door switch sensor, if no door opening signal is detected when the driver starts the car for the second time, the system assumes that the driver has not gotten out of the car for a safety check. The central controller then sends a braking command to the blind spot automatic braking system to keep the car in a braking state and controls the alarm device to continue working. If a door opening signal is detected, the system assumes that the driver wants to get out of the car for a safety check and proceeds to S43.

[0040] S43. The central controller sends a detection command to the handbrake detection device. The handbrake detection device detects whether the handbrake is engaged. If the handbrake is engaged, the central controller sends a release command to the blind spot automatic braking system, and the alarm device stops working to prevent the vehicle from rolling away while the driver gets out to check. The vehicle can start normally after the driver returns to the vehicle. If the handbrake is not engaged, the blind spot automatic braking system continues to brake, and the alarm device continues to work to prompt the driver to confirm whether the handbrake is engaged.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A method for early warning of accidents caused by secondary starting and crushing of dump trucks in the blind spot in front of them, characterized in that, Includes the following steps: S1. The central controller in the control module receives a signal indicating whether the blind spot automatic braking system is activated. If the central controller receives a signal that the blind spot automatic braking system is not activated, the vehicle continues to drive. If the central controller receives a signal that the blind spot automatic braking system is activated, it enters S2. S2. The central controller analyzes the signal sent by the vehicle speed sensor and determines whether the vehicle should continue to move or send a detection command to the pedestrian and non-motorized vehicle detection module; if a detection command is sent to the pedestrian and non-motorized vehicle detection module, then proceed to S3. S3. Upon receiving instructions from the central controller, the pedestrian and non-motorized vehicle detection module uses a life detection millimeter-wave radar to detect whether there are signs of life in objects in the area below the front of the vehicle; a pedestrian image recognition device to detect whether there are pedestrians in the target area; and an ultrasonic radar to detect whether there are pedestrians or non-motorized vehicles in the non-tire area. After the life detection millimeter-wave radar, pedestrian image recognition device, and ultrasonic radar all send their detection signals to the central controller, the process proceeds to S4. S4. The central controller analyzes the received detection signals and issues commands. S4 includes the following sub-steps: S41. The central controller analyzes the three detection signals emitted by the life detection millimeter-wave radar, the pedestrian image recognition device, and the ultrasonic radar. If none of the three detection signals are met, the central controller sends a release signal to the blind spot automatic braking system when the driver restarts. If any of the three detection signals is satisfied, the central controller controls the alarm device to issue a voice prompt to the driver, reminding the driver to observe whether there are pedestrians or non-motorized vehicles, and issues a detection command to the door switch sensor, entering S42; If any two or more of the three detection signals are satisfied, the central controller controls the alarm device to issue an audible and visual warning and issues a detection command to the door switch sensor, thus entering S42; S42. When the central controller receives the detection signal from the door switch sensor, if no door opening signal is detected when the driver starts the vehicle for the second time, the central controller sends a braking command to the blind spot automatic braking system to keep the vehicle in a braking state and controls the alarm device to continue working; if a door opening signal is detected, then proceed to S43. S43. The central controller sends a detection command to the handbrake detection device. The handbrake detection device detects whether the handbrake is engaged. If the handbrake is engaged, the central controller sends a command to the blind spot automatic braking system to release the brake, and the alarm device stops working. If the handbrake is not engaged, the blind spot automatic braking system continues to brake, and the alarm device continues to work.

2. The method for early warning of secondary starting and crushing accidents in the blind spot of a dump truck according to claim 1, characterized in that, The life detection millimeter-wave radar and the pedestrian image recognition device are installed below the front of the vehicle on the front sides of the two front wheels, and the ultrasonic radar is installed in the non-tire area below the front of the vehicle.

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