School bus brake system capable of automatically sensing obstacles
By installing frontal and side laser rangefinders, high-speed cameras, and other components on school buses, an automatic obstacle-sensing braking system for school buses has been constructed. This solves the problems of existing systems lacking early warning and having limited detection capabilities, enabling diversified detection and timely warning, thereby improving safety and detection range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU DEYAO SCHOOL BUS RENTAL SERVICE GRP CO LTD
- Filing Date
- 2024-10-25
- Publication Date
- 2026-04-28
AI Technical Summary
The existing automatic braking system for school buses lacks a braking warning function, which fails to provide timely warnings to passengers inside the vehicle. Furthermore, the detection unit is limited to a single type, resulting in an insufficient detection range and an inability to accurately determine the reaction time.
The system employs components such as front and side laser rangefinders, high-speed cameras, central processing units, control units, and audio-visual warning connectors to construct an automatic obstacle-sensing braking system for school buses, enabling multiple detection methods and braking warning functions.
By employing multiple detection methods and a brake warning function, collisions and scratches caused by sudden braking are avoided, ensuring that drivers can observe dangers in a timely manner and take appropriate action, thereby enhancing the accuracy of detection range and reaction time judgment.
Smart Images

Figure CN121929059A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of braking system technology, and more specifically to an automatic obstacle-sensing braking system for school buses. Background Technology
[0002] A school bus is a passenger vehicle with seven or more seats that has obtained a permit to use in accordance with the "Regulations on the Safety Management of School Buses" and is used to transport students receiving compulsory education to and from school. School buses that transport primary school students should be designed and manufactured in accordance with the national standards for dedicated school buses. Most existing school buses are equipped with automatic braking systems, but the existing automatic braking systems still have some shortcomings.
[0003] Most existing automatic braking systems lack brake warning functionality, meaning they cannot provide advance warning to other occupants during emergency braking. This makes them more susceptible to injuries from sudden braking. Furthermore, most existing automatic braking systems rely solely on safety detection displays, failing to assess remaining reaction time based on the vehicle's speed and distance to obstacles. This prevents drivers from directly observing potential hazards. Additionally, most existing systems use only simple distance sensors for detection, resulting in a limited detection range. Therefore, a novel automatic obstacle-sensing braking system for school buses is urgently needed to address these issues. Summary of the Invention
[0004] The purpose of this invention is to provide an automatic obstacle-sensing braking system for school buses in order to solve the above-mentioned problems.
[0005] The present invention achieves the above objectives through the following technical solutions: An automatic obstacle-sensing braking system for a school bus includes a body, a front laser rangefinder sensor, and a side laser rangefinder sensor. A data acquisition cable is mounted on one side wall of the body, and a connector plug is provided at the connection point between the data acquisition cable and the body. A mounting bracket is attached to one end of the data acquisition cable. The front laser rangefinder sensor is mounted on one side wall of the mounting bracket, and the side laser rangefinder sensors are mounted on the two end side walls of the mounting bracket. A high-speed camera is mounted on one side of the front laser rangefinder sensor. A connecting cable is mounted on the other side wall of the body, and a braking control system is installed at one end of the connecting cable. The connector includes a second connector mounted on one side of the first connector, an audible and visual warning connector mounted on one end of the second connector, a third connector mounted on one side of the second connector, an instrument panel connector mounted on one end of the third connector, a fourth connector mounted on one side of the third connector, a vehicle data processor mounted on one end of the fourth connector, a motherboard mounted at the bottom of the body, a central processing unit mounted in the middle of the upper part of the motherboard, a data storage device mounted on one side of the central processing unit, a control unit mounted on the other side of the central processing unit, a battery mounted on one side of the upper part of the central processing unit, and a wireless transmission module mounted on one side of the battery.
[0006] Furthermore, a carrier plate is installed at the lower end of the machine body, and mounting screw holes are formed at the four corners of the upper end of the carrier plate.
[0007] By adopting the above technical solution, it can be ensured that the automatic braking system can be stably connected to the vehicle data management unit.
[0008] Furthermore, the main body is connected to the data acquisition cable via the connector plug, and the data acquisition cable is plugged into the mounting bracket.
[0009] By adopting the above technical solution, the data connection between the mounting bracket and the machine body can be ensured to be stable.
[0010] Furthermore, the mounting bracket is connected to the front laser rangefinder, the side laser rangefinder, and the high-speed camera via slots.
[0011] By adopting the above technical solution, the stability of the detection unit of the automatic braking system can be ensured.
[0012] Furthermore, the body is connected to the first, second, third, and fourth connecting wires. The first connecting wire is connected to the brake control system connector, the second connecting wire is connected to the audible and visual warning connector, the third connecting wire is connected to the instrument panel connector, and the fourth connecting wire is connected to the vehicle data processor.
[0013] By adopting the above technical solution, it is possible to ensure a stable connection between the body and various systems of the vehicle.
[0014] Furthermore, the main body is connected to the motherboard via a slot, and the motherboard is plugged into the central processing unit.
[0015] By adopting the above technical solution, the stable operation of the central processing unit can be ensured.
[0016] Furthermore, the motherboard is plugged into the data storage device and the control unit.
[0017] By adopting the above technical solution, the automatic braking system can save the operation data locally.
[0018] Furthermore, the main body, the battery, and the wireless transmission module are all connected by screws.
[0019] By adopting the above technical solution, the wireless transmission module can transmit vehicle driving data to the school bus control center in real time.
[0020] Furthermore, the front laser rangefinder, the side laser rangefinder, and the high-speed camera are all electrically connected to the central processing unit. The central processing unit is electrically connected to the control unit, the vehicle data processor, the wireless transmission module, and the data storage. The control unit is electrically connected to the brake control system connector, the audible and visual warning connector, and the dashboard connector.
[0021] By adopting the above technical solution, the circuit connection of the automatic braking system can be ensured to be stable.
[0022] The specific working principle is as follows: During use, the operator can install the machine body on the vehicle data management unit through the carrier plate, and connect it to the vehicle data processor through the fourth connecting cable. Then, the mounting bracket is installed and connected to the front bumper of the vehicle, and the brake control system connector is connected to the vehicle brake system through the first connecting cable. The sound and light warning connector is connected to the sound and light alarm inside the vehicle through the second connecting cable, and the instrument panel connector is connected to the vehicle instrument panel through the third connecting cable. After the vehicle is started, the control unit will activate the front laser rangefinder, the side laser rangefinder, and the high-speed camera to work simultaneously. The front laser rangefinder and the side laser rangefinder can detect the distance to obstacles in front of and to the sides of the vehicle. The high-speed camera... The system can continuously photograph obstacles ahead. The central processing unit can calculate and convert data detected by the front laser rangefinder, the side laser rangefinder, and the high-speed camera in real time. When insufficient installation distance is detected, the control unit will activate the in-vehicle sound and light alarm through the sound and light warning connector, allowing other occupants to anticipate the emergency and take timely countermeasures, thus avoiding collisions and scratches caused by sudden braking. At the same time, the vehicle data processor collects the vehicle's current speed and calculates the remaining reaction time based on the distance, transmitting emergency signals and data to the vehicle's dashboard through the dashboard connector, allowing the driver to more intuitively observe dangers. The wireless transmission module can transmit vehicle driving data to the school bus control center in real time.
[0023] The beneficial effects of this invention are as follows: 1. By designing the control unit, connecting line 2, and audible and visual warning connector, the automatic braking system can have a braking warning function. When the automatic braking system brakes in an emergency, it can warn other people in the vehicle, so that other people in the vehicle can be aware of the emergency situation in advance and avoid collisions and scratches caused by sudden braking. 2. By designing the vehicle data processor, central processing unit, and instrument panel connector, the automatic braking system can be equipped with a safety detection display function. This allows the automatic braking system to determine how much reaction time remains based on the current vehicle speed and the distance between the vehicle and the obstacle, thus enabling the driver to observe the danger more intuitively. 3. By incorporating a front-facing laser rangefinder, a side-facing laser rangefinder, and a high-speed camera, the automatic braking system can utilize a variety of sensors for more comprehensive distance detection. This diversifies the detection units of the automatic braking system and expands its detection range. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of an automatic obstacle-sensing braking system for school buses according to the present invention; Figure 2 This is a top view of the main body of the automatic obstacle sensing braking system for school buses described in this invention; Figure 3 This is a cross-sectional view of the main body of the automatic obstacle sensing braking system for school buses described in this invention; Figure 4 This is a circuit block diagram of an automatic obstacle-sensing braking system for school buses according to the present invention.
[0025] The annotations in the attached figures are explained as follows: 1. Body; 2. Carrier plate; 3. Mounting screw holes; 4. Data acquisition wires; 5. Connector plug; 6. Mounting bracket; 7. Front laser rangefinder sensor; 8. Side laser rangefinder sensor; 9. High-speed camera; 10. Connecting cable one; 11. Brake control system connector; 12. Connecting cable two; 13. Audible and visual warning connector; 14. Connecting cable three; 15. Dashboard connector; 16. Connecting cable four; 17. Automotive data processor; 18. Motherboard; 19. Central processing unit; 20. Data storage device; 21. Control unit; 22. Battery; 23. Wireless transmission module. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-4As shown, an automatic obstacle-sensing braking system for a school bus includes a body 1, a front laser rangefinder 7, and a side laser rangefinder 8. A data acquisition cable 4 is mounted on one side wall of the body 1. A connector 5 is provided at the connection point between the data acquisition cable 4 and the body 1. A mounting bracket 6 is provided at one end of the data acquisition cable 4. The front laser rangefinder 7 is mounted on one side wall of the mounting bracket 6, and the side laser rangefinder 8 is mounted on both side walls of the mounting bracket 6. A high-speed camera 9 is mounted on one side of the front laser rangefinder 7. A connecting cable 10 is mounted on the other side wall of the body 1. A brake control system connector 11 is installed at one end of the connecting cable 10. A connecting cable 12 is installed on one side of the body 1. One end of the connecting cable 12 is equipped with an audible and visual warning connector 13. A connecting cable 14 is installed on one side of the connecting cable 12. One end of the connecting cable 14 is equipped with an instrument panel connector 15. A connecting cable 16 is installed on one side of the connecting cable 14. One end of the connecting cable 16 is equipped with a vehicle data processor 17. A motherboard 18 is installed at the bottom of the body 1. A central processing unit 19 is installed in the middle of the upper part of the motherboard 18. A data storage device 20 is installed on one side of the central processing unit 19. A control unit 21 is installed on the other side of the central processing unit 19. A battery 22 is installed on one side of the upper part of the central processing unit 19. A wireless transmission module 23 is installed on one side of the battery 22.
[0027] In this embodiment, a carrier plate 2 is installed at the lower end of the body 1, and mounting screw holes 3 are formed at the four corners of the upper end of the carrier plate 2, which enables the body 1 to be stably connected to other equipment.
[0028] In this embodiment, the body 1 and the data acquisition cable 4 are connected through the connector 5, and the data acquisition cable 4 is plugged into the mounting bracket 6, which can ensure the stable connection between the body 1 and the mounting bracket 6.
[0029] In this embodiment, the mounting bracket 6 is connected to the front laser rangefinder 7, the side laser rangefinder 8, and the high-speed camera 9 through slots, which can ensure the stable operation of the front laser rangefinder 7, the side laser rangefinder 8, and the high-speed camera 9.
[0030] In this embodiment, the body 1 is connected to the first connecting line 10, the second connecting line 12, the third connecting line 14, and the fourth connecting line 16. The first connecting line 10 is connected to the brake control system connector 11, the second connecting line 12 is connected to the audible and visual warning connector 13, the third connecting line 14 is connected to the instrument panel connector 15, and the fourth connecting line 16 is connected to the vehicle data processor 17, so that the automatic braking system is stably connected to the various systems of the vehicle.
[0031] In this embodiment, the main body 1 is connected to the main board 18 via a slot, the main board 18 is plugged into the central processing unit 19, and the main board 18 is also plugged into the data storage 20 and the control unit 21, which can ensure the stable operation of the automatic braking system.
[0032] In this embodiment, the body 1, the battery 22, and the wireless transmission module 23 are all connected by screws. The wireless transmission module 23 can transmit the vehicle's driving data to the school bus control center in real time.
[0033] In this embodiment, the front laser rangefinder 7, the side laser rangefinder 8, and the high-speed camera 9 are all electrically connected to the central processing unit 19. The central processing unit 19 is electrically connected to the control unit 21, the vehicle data processor 17, the wireless transmission module 23, and the data storage 20. The control unit 21 is electrically connected to the brake control system connector 11, the audible and visual warning connector 13, and the dashboard connector 15, ensuring stable circuit connections for the automatic braking system.
[0034] The specific working principle is as follows: During use, the operator can install the body 1 on the vehicle data management unit via the carrier plate 2, and connect it to the vehicle data processor 17 via the connecting cable 16. Then, the mounting bracket 6 is installed and connected to the front bumper of the vehicle, and the brake control system connector 11 is connected to the vehicle brake system via the connecting cable 10. The sound and light warning connector 13 is connected to the sound and light alarm inside the vehicle via the connecting cable 12. The instrument panel connector 15 is connected to the vehicle instrument panel via the connecting cable 14. After the vehicle is started, the control unit 21 will activate the front laser rangefinder 7, the side laser rangefinder 8, and the high-speed camera 9 to work simultaneously. The front laser rangefinder 7 and the side laser rangefinder 8 can detect the distance to obstacles in front of and to the sides of the vehicle. The high-speed camera 9 can continuously capture images of obstacles ahead. The central processing unit 19 can perform real-time calculations and conversions on the data detected by the front laser rangefinder 7, the side laser rangefinder 8, and the high-speed camera 9. When insufficient installation distance is detected, the control unit 21 will activate the in-vehicle sound and light alarm through the sound and light warning connector 13, allowing other people in the vehicle to anticipate the occurrence of an emergency and take timely countermeasures, thereby avoiding collisions and scratches caused by sudden braking. At the same time, the vehicle data processor 17 collects the current driving speed of the vehicle and calculates the remaining reaction time based on the distance. It then transmits emergency signals and data to the vehicle's dashboard through the dashboard connector 15, allowing the driver to observe dangers more intuitively. The wireless transmission module 23 can transmit the vehicle's driving data to the school bus control center in real time.
[0035] 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 school bus automatic obstacle-sensing braking system, characterized in that: The system includes a body (1), a front laser rangefinder (7), and a side laser rangefinder (8). A data acquisition cable (4) is installed on one side wall of the body (1). A connector (5) is provided at the connection between the data acquisition cable (4) and the body (1). A mounting bracket (6) is provided at one end of the data acquisition cable (4). The front laser rangefinder (7) is provided on one side wall of the mounting bracket (6). The side laser rangefinder (8) is provided on both side walls of the mounting bracket (6). A high-speed camera (9) is installed on one side of the front laser rangefinder (7). A connecting cable one (10) is installed on the other side wall of the body (1). A brake control system connector (11) is installed at one end of the connecting cable one (10). A connecting cable two is installed on one side of the connecting cable one (10). (12) One end of the second connecting line (12) is equipped with an audible and visual warning connector (13), one side of the second connecting line (12) is equipped with a third connecting line (14), one end of the third connecting line (14) is equipped with an instrument panel connector (15), one side of the third connecting line (14) is equipped with a fourth connecting line (16), one end of the fourth connecting line (16) is equipped with a car data processor (17), the bottom of the body (1) is equipped with a motherboard (18), the middle of the upper part of the motherboard (18) is equipped with a central processing unit (19), one side of the central processing unit (19) is equipped with a data storage device (20), the other side of the central processing unit (19) is equipped with a control unit (21), one side of the upper part of the central processing unit (19) is equipped with a battery (22), and one side of the battery (22) is equipped with a wireless transmission module (23).
2. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The lower end of the body (1) is equipped with a carrier plate (2), and the upper end of the carrier plate (2) is formed with mounting screw holes (3) at the four corners.
3. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The body (1) is connected to the data acquisition cable (4) via the connector (5), and the data acquisition cable (4) is plugged into the mounting bracket (6).
4. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The mounting bracket (6) is connected to the front laser rangefinder (7), the side laser rangefinder (8), and the high-speed camera (9) via slots.
5. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The body (1) is connected to the first connecting line (10), the second connecting line (12), the third connecting line (14), and the fourth connecting line (16).
6. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The first connecting line (10) is plugged into the brake control system connector (11), the second connecting line (12) is plugged into the sound and light warning connector (13), the third connecting line (14) is plugged into the instrument panel connector (15), and the fourth connecting line (16) is plugged into the vehicle data processor (17).
7. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The body (1) is connected to the motherboard (18) via a slot, and the motherboard (18) is plugged into the central processing unit (19).
8. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The motherboard (18) is plugged into the data storage (20) and the control unit (21).
9. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The body (1), the battery (22), and the wireless transmission module (23) are all connected by screws.
10. The automatic obstacle-sensing braking system for school buses according to claim 1, characterized in that: The front laser rangefinder (7), the side laser rangefinder (8), and the high-speed camera (9) are all electrically connected to the central processing unit (19). The central processing unit (19) is electrically connected to the control unit (21), the vehicle data processor (17), the wireless transmission module (23), and the data storage (20). The control unit (21) is electrically connected to the brake control system connector (11), the sound and light warning connector (13), and the instrument panel connector (15).