Student safety monitoring and braking device for motor vehicles in field

Abstract

The utility model discloses a student safety monitoring and braking device for motor vehicles in a field, which belongs to the technical field of motor vehicles and comprises a sensor unit, a central processing unit, a storage module and a braking control unit. The sensor unit is used for monitoring the running state of the vehicle; the central processing unit is electrically connected with the sensor unit and used for receiving a vehicle state signal; the storage module is used for storing preset vehicle safety parameters; the brake control unit comprises an electromagnetic proportional valve and an additional brake cylinder, the electromagnetic proportional valve is electrically connected with the central processing unit, and the additional brake cylinder is matched with an original brake disc of the vehicle; and the central processing unit controls the action of the electromagnetic proportional valve according to the received vehicle state signal and preset parameters in the storage module so as to adjust the flow direction of hydraulic oil and additionally arrange a brake cylinder, so that the brake control of the vehicle is realized. According to the utility model, real-time safety monitoring and automatic braking of motor vehicles in the field can be realized, and the safety of trainees and surrounding personnel can be effectively ensured.

Description

Technical Field

[0001] This utility model belongs to the field of motor vehicle technology, specifically a safety monitoring and braking device for trainees in motor vehicles on-site. Background Technology

[0002] Trainees operating specialized motor vehicles on-site must undergo practical training and examinations before obtaining certification. The examination involves trainees driving alone in an actual vehicle within a designated area. Due to trainees' lack of operational experience, uncoordinated movements, and varying psychological states, there have been numerous instances during practice and examinations where trainees have lost control of their vehicles, colliding with objects or even people. Currently, safety officers cannot accompany trainees during practice and examinations to supervise and observe them. In emergencies, they cannot assist trainees in operating the brake pedal. Trainees' failure to apply the brake pedal in time due to nervousness or lack of proficiency poses a risk of loss of control and collisions. Utility Model Content

[0003] This utility model aims to provide a safety monitoring and braking device for trainees in special motor vehicles within the training ground. By adding hardware, it aims to achieve real-time safety monitoring and automatic braking of motor vehicles within the training ground, effectively ensuring the safety of trainees and surrounding personnel, without the need for a safety officer to supervise the vehicle.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A safety monitoring and braking device for trainees in motor vehicles at a training ground includes a sensor unit, a central processing unit, a storage module, and a braking control unit. The sensor unit monitors the vehicle's operating status and includes a seat sensing sensor, a driving speed sensor, a handbrake status sensor, and a vehicle position sensor. The central processing unit is electrically connected to the sensor unit and receives vehicle status signals. The storage module stores preset vehicle safety parameters. The braking control unit includes an electromagnetic proportional valve and an additional brake caliper. The electromagnetic proportional valve is electrically connected to the central processing unit, and the additional brake caliper works in conjunction with the vehicle's original brake disc. Based on the received vehicle status signals and the preset parameters in the storage module, the central processing unit controls the operation of the electromagnetic proportional valve to adjust the hydraulic oil flow to the additional brake caliper, thereby achieving vehicle braking control.

[0006] Furthermore, the vehicle position sensor is a pre-installed electronic fence within the site, and the central processing unit is connected to a wireless signal receiver. The electronic fence is connected to the wireless signal receiver via a wireless signal transmitter.

[0007] Furthermore, it also includes an alarm module, which comprises an audible alarm module and a visual alarm module. The audible alarm module is a voice announcer or buzzer, installed inside the vehicle; the visual alarm module is the vehicle's brake lights or a separate indicator light installed inside the vehicle.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention achieves safety monitoring and automatic braking of motor vehicles within the training area by adding an automatic hydraulic braking device and an automatic control system. When trainees are practicing or taking tests independently, the system can automatically acquire relevant vehicle data, automatically identify the vehicle's status, and automatically stop the vehicle before any collision, loss of speed, or rollover hazard occurs, effectively ensuring the safety of trainees and surrounding personnel. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the service braking device for existing special-purpose motor vehicles on site.

[0011] Figure 2 This is an additional set of automatic hydraulic braking devices.

[0012] Figure 3 This is a schematic diagram of the hydraulic control system in this device.

[0013] Figure 4 This is a diagram of the control module of this device.

[0014] In the diagram: 1. Brake disc; 2. Master cylinder; 3. Brake fluid reservoir; 4. Brake pump assembly; 5. Brake pedal; 6. Wheel;

[0015] 12. First hydraulic pump; 13. Second hydraulic pump; 14. Filter screen; 15. Safety valve; 16. Throttle valve; 18. Direction controller; 19. Steering cylinder; 20. Multi-way control valve; 22. One-way throttle valve; 23. Lifting cylinder; 24. Tilting cylinder; 25. Signal receiver; 26. Solenoid proportional valve; 27. Added brake cylinder. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 2 to 4 As shown, the present invention provides a safety monitoring and braking device for trainees in motor vehicles within a training ground, which mainly consists of the following parts:

[0018] 1. Sensor Unit: Used to monitor the vehicle's operating status, specifically including a seat sensing sensor, a driving speed sensor, a handbrake status sensor, and a vehicle position sensor. The seat sensing sensor detects the weight on the seat using a pressure sensor installed in the seat floor to determine if someone is in the seat; the driving speed sensor acquires real-time vehicle speed data; the handbrake status sensor collects status information data of the vehicle's handbrake device; the vehicle position sensor uses a pre-installed electronic fence within the area, connected to a wireless signal receiver 25 connected to the central processing unit via a wireless signal transmitter, to monitor the vehicle's position within the area.

[0019] 2. Central processing unit: Electrically connected to the sensor unit, used to receive vehicle status signals output by the sensor unit, and make judgments based on preset parameters in the storage module to control the action of the brake control unit.

[0020] 3. Storage module: Used to store preset vehicle safety parameters, such as speed limits and vehicle position range.

[0021] 4. Brake Control Unit: Includes an electromagnetic proportional valve 26 and an additional brake caliper 27. The electromagnetic proportional valve 26 is electrically connected to the central processing unit, and the additional brake caliper 27 works in conjunction with the vehicle's original brake disc 1. When the central processing unit determines that there is an abnormal situation in the vehicle, it controls the operation of the electromagnetic proportional valve 26 to direct hydraulic oil to the additional brake caliper 27, pushing the brake to apply pressure and complete the deceleration or stopping of the vehicle.

[0022] 5. Alarm Module: This includes a sound alarm module and a light alarm module. The sound alarm module is a voice broadcaster or buzzer, installed inside the vehicle. The light alarm module is the vehicle's brake lights or an indicator light independently installed inside the vehicle, used to issue alarm signals when abnormal conditions occur in the vehicle, thereby improving the awareness of the occupants.

[0023] Vehicle modification process:

[0024] Taking a forklift as an example, the process of installing this safety monitoring and braking device is as follows:

[0025] 1. Seat sensing sensor installation: Install the seat sensing sensor inside the forklift seat base plate, ensuring it fits snugly against the seat, and connect it to the central processing unit via a wire.

[0026] 2. Installation of driving speed sensor: Install the driving speed sensor on the drive shaft of the forklift, fix it with clamps, and connect the signal line to the central processing unit.

[0027] 3. Installation of handbrake status sensor: Install the handbrake status sensor near the handbrake lever, fix it with a bracket, and connect it to the central processing unit.

[0028] 4. Vehicle position sensor installation: The vehicle position sensor uses an electronic fence pre-installed in the field and is connected to the wireless signal receiver 25 connected to the central processing unit via a wireless signal transmitter.

[0029] 5. Installation of Additional Brake Calipers and Brake Lines: An additional brake caliper 27 is installed on each wheel 6 of the vehicle, and the new brake caliper is connected to the vehicle's hydraulic system via brake lines. The additional brake caliper 27 fits snugly with the original brake disc 1 of the wheel 6 to ensure reliable and effective braking.

[0030] 6. Installation of the electromagnetic proportional valve: The electromagnetic proportional valve 26 is installed on the brake oil line. Its main function is to control the flow of hydraulic oil, thereby achieving automatic control of vehicle braking. The electromagnetic proportional valve 26 features fast response and high control precision, and can act quickly after receiving a control signal, ensuring the timeliness and reliability of braking.

[0031] 7. Signal Receiver Installation: The signal receiver 25 is installed on the exterior of the vehicle, typically in a suitable location at the front or rear of the vehicle, to ensure the stability and reliability of signal reception. The signal receiver 25 is connected to the electromagnetic proportional valve 26 to receive control signals from the remote control device 11 and convert them into electrical signals to control the operation of the electromagnetic proportional valve 26.

[0032] like Figure 1 As shown, in the conventional braking system of a motor vehicle, a brake disc 1 is installed on each wheel 6. The brake master cylinder 2 is controlled by the brake pedal 5 to achieve braking of the brake disc 1 by the existing brake slave cylinders. The brake master cylinder 2 is connected to the brake pedal 5 through the brake pump assembly 4, and the brake oil tank 3 provides hydraulic oil to the brake master cylinder 2.

[0033] In a conventional forklift, the hydraulic pressure is transmitted to various working devices, including lifting and steering, through the hydraulic oil of the entire vehicle via the first hydraulic pump 12 and the second hydraulic pump 13. Specifically, pressurized hydraulic oil is driven by the first hydraulic pump 12 along the hydraulic oil pipe into the multi-way control valve 20. According to its operation command, it flows through the one-way throttle valve 22 and enters the two parallel lifting cylinders 23 to raise and lower the forklift forks; or according to its operation command, it enters the two parallel fork mast tilting cylinders 24 to tilt the forklift forks forward or backward. The second hydraulic pump 13 controls the pressurized oil to enter the steering controller through the throttle valve 16 to control the movement of the steering cylinder 19 of the vehicle, thereby adjusting the steering movement of the forklift. A filter screen 14 and a safety valve 15 are also installed on the oil pipes of the hydraulic system.

[0034] The modifications to the vehicle in this case involved the addition of a hydraulic braking system and the installation of related components:

[0035] 1. Adding brake calipers 27 and brake lines: A set of brake calipers is added to each wheel 6 of the vehicle, and the new brake calipers are connected to the vehicle's hydraulic system via brake lines. The added brake calipers 27 fit tightly with the original brake discs 1 of the wheels 6 to ensure reliable and effective braking.

[0036] 2. Installation of the electromagnetic proportional valve 26: The electromagnetic proportional valve 26 is installed on the brake oil line. Its main function is to control the flow of hydraulic oil, thereby achieving remote control of the vehicle's braking. The electromagnetic proportional valve 26 features fast response and high control precision, and can act quickly after receiving a control signal, ensuring the timeliness and reliability of braking.

[0037] 3. Installation of Signal Receiver 25: The signal receiver 25 is installed on the exterior of the vehicle, typically in a suitable location at the front or rear of the vehicle, to ensure the stability and reliability of signal reception. The signal receiver 25 is connected to the electromagnetic proportional valve 26 to receive control signals from the remote control device 11 and convert them into electrical signals to control the operation of the electromagnetic proportional valve 26.

[0038] 4. Taking a forklift as an example, the installation process of this safety monitoring and braking device is as follows: First, install the seat sensing sensor inside the forklift seat base plate, ensuring it fits snugly against the seat, and connect it to the central processing unit via a wire. The travel speed sensor is installed on the forklift's drive shaft, secured with clamps, and its signal line is connected to the central processing unit. The handbrake status sensor is installed near the handbrake lever, secured with a bracket, and connected to the central processing unit. The vehicle position sensor utilizes a pre-installed electronic fence within the site, connected to the wireless signal receiver 25 connected to the central processing unit via a wireless signal transmitter.

[0039] The working principle of this device is as follows:

[0040] During student driving practice or testing, the sensor unit monitors the vehicle's operating status in real time and transmits the data to the central processing unit. The central processing unit determines the vehicle's status based on preset parameters. When an abnormality is detected, such as speeding, the vehicle crossing the line, or the student leaving their seat, it immediately controls the electromagnetic proportional valve 26 to activate the additional brake calipers 27, achieving automatic braking. Simultaneously, the alarm module issues an alarm signal to alert the student and relevant personnel.

[0041] For example, when a vehicle is speeding, the speed sensor sends the speed data to the central processing unit. The central processing unit quickly compares the data with the set speed limit, identifies that the vehicle is speeding, immediately issues a stepped braking command, and sends the braking command to the brake control unit to take corresponding braking measures to slow down or stop the vehicle.

[0042] For example, when the trainee leaves the seat, the seat sensing sensor detects and reports to the central processing unit. The central processing unit immediately issues instructions based on the actual situation such as the vehicle's running speed and the height of the forks off the ground, controlling the electromagnetic proportional valve 26 to activate the additional brake cylinder 27, forcibly braking the vehicle to a stop and shutting off the engine.

[0043] Then, an additional brake caliper 27 is installed near the original brake disc 1 of the forklift wheel 6, and connected to the vehicle's hydraulic system via a brake hose. An electromagnetic proportional valve 26 is installed on the hose. The electromagnetic proportional valve 26 is connected to the central processing unit (CPU) via a control line, ensuring that the CPU can control its operation. A storage module is installed inside the CPU to store preset vehicle safety parameters, such as a speed limit set to 10 km / h and the vehicle's position range set to the designated practice area within the training area.

[0044] Real-world application scenarios

[0045] During actual driving practice, when the trainee drives the forklift at a speed exceeding 10 km / h, the speed sensor sends a speed signal to the central processing unit. Upon receiving the signal, the central processing unit immediately controls the electromagnetic proportional valve 26 to actuate, causing hydraulic oil to flow to the additional brake caliper 27, pushing the brake to apply pressure and decelerate the forklift until it stops. Simultaneously, the buzzer in the alarm module sounds an alarm, and the brake lights illuminate, reminding the trainee that the vehicle has exceeded the speed limit and is braking.

[0046] In summary, the on-site motor vehicle student safety monitoring and braking device provided by this utility model can identify abnormal vehicle conditions by real-time monitoring of relevant key parameters of the vehicle and issue corresponding instructions to the actuator. After receiving the braking signal, the actuator uses the hydraulic braking system to slow down or stop the vehicle, effectively ensuring the safety of students and surrounding personnel, and has important application value.

[0047] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

[0048] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A safety monitoring and braking device for trainees in motor vehicles within a training ground, characterized in that, include: At least one sensor unit is provided for monitoring the operating status of the vehicle, the sensor unit including a seat sensing sensor, a driving speed sensor, a handbrake status sensor and a vehicle position sensor; A central processing unit, electrically connected to the sensor unit, is used to receive vehicle status signals output by the sensor unit; A storage module for storing preset vehicle safety parameters; A brake control unit includes an electromagnetic proportional valve (26) and an additional brake caliper (27), wherein the electromagnetic proportional valve (26) is electrically connected to the central processing unit and the additional brake caliper (27) is coupled to the original brake disc (1) of the vehicle. The central processing unit controls the operation of the electromagnetic proportional valve (26) based on the received vehicle status signal and the preset parameters in the storage module, so as to adjust the flow of hydraulic oil to the additional brake pump (27) and realize the braking control of the vehicle.

2. The on-site motor vehicle student safety monitoring and braking device according to claim 1, characterized in that, The vehicle position sensor is a pre-installed electronic fence in the field. The central processing unit is wirelessly connected to the signal receiver (25). The electronic fence is connected to the signal receiver (25) via a wireless signal transmitter.

3. The on-site motor vehicle student safety monitoring and braking device according to claim 1, characterized in that, It also includes an alarm module, which comprises a sound alarm module and a light alarm module. The sound alarm module is a voice broadcaster or a buzzer, installed inside the vehicle; the light alarm module is the vehicle's brake lights or an indicator light independently installed inside the vehicle.

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