Vehicle anti-collision system and vehicle
By installing a laser communication box on the roof of the vehicle, the vehicle can obtain the speed signal of the vehicle in front and adjust its own speed accordingly, thus solving the problem of high vehicle collision risk in low visibility conditions and ensuring driving safety in adverse weather conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FULSCIENCE AUTOMOTIVE ELECTRONICS CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-26
AI Technical Summary
In low visibility conditions, the camera imaging effect and radar perception capability of existing vehicle collision avoidance systems such as AEB are weakened, resulting in reduced driving safety and an increased risk of collisions.
A laser communication box is installed on the roof of the vehicle to obtain the speed signal of the vehicle in front through laser communication. The speed difference is calculated using an FPGA control module, and the vehicle speed is adjusted by a speed adjustment actuator to reduce the risk of collision.
In severe weather, it enables timely and accurate acquisition of the speed of the vehicle in front, adjustment of the vehicle's own speed, reduction of collision risk, and protection of driving safety.
Smart Images
Figure CN224277147U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive technology, and in particular to a vehicle collision avoidance system and a vehicle. Background Technology
[0002] Vehicles traveling on highways often encounter low visibility conditions, such as fog, haze, heavy rain, or blizzards. In such situations, drivers cannot accurately observe the vehicle ahead in time, increasing the risk of multi-vehicle collisions and resulting in loss of life and property. To prevent chain-reaction rear-end collisions, current technology often employs Automatic Emergency Braking (AEB) systems. These systems use cameras or radar to detect when the distance to an obstacle is too short and automatically apply the brakes.
[0003] However, in low visibility conditions, the imaging effect of cameras will be greatly reduced, and the radar's perception ability will also be much worse than before. At this time, the role of AEB will be greatly reduced at any speed, making collisions more likely and affecting driving safety. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a vehicle collision avoidance system and vehicle to solve the problem that vehicles are prone to collisions in low visibility conditions, which affects driving safety.
[0005] This application provides a vehicle collision avoidance system, which includes: a first laser communication box, a vehicle controller, and a vehicle speed adjustment actuator; the first laser communication box includes a laser transceiver module, an optical module, and a control module; the first laser communication box is installed on the top of the vehicle.
[0006] The laser transceiver module is connected to the optical module, and the optical module is connected to the control module; the first laser communication box is connected to the vehicle controller through the control module, and the vehicle controller is connected to the vehicle speed adjustment actuator;
[0007] The laser transceiver module is used to receive laser signals sent by the vehicle in front through laser communication with the vehicle in front.
[0008] The optical module is used to convert the laser signal into a vehicle speed signal by photoelectric conversion;
[0009] The control module is used to receive the vehicle speed signal sent by the vehicle controller and determine the speed difference signal between the preceding vehicle speed signal and the vehicle speed signal.
[0010] The vehicle controller is used to receive the vehicle speed difference signal sent by the control module, and adjust the vehicle speed through the vehicle speed adjustment actuator according to the vehicle speed difference signal.
[0011] Furthermore, the vehicle collision avoidance system also includes: a second laser communication box; the second laser communication box is installed on the top of the vehicle;
[0012] The second laser communication box is used to establish a laser communication connection with the following vehicle in order to send laser signals to the following vehicle.
[0013] Furthermore, the laser transceiver module of the first laser communication box and the laser transceiver module of the second laser communication box each include a signal transmitting end and a signal receiving end; the signal transmitting end and the signal receiving end of the first laser communication box face the front of the vehicle, and the signal transmitting end and the signal receiving end of the second laser communication box face the rear of the vehicle.
[0014] Furthermore, the first laser communication box also includes: a position-sensitive detector and a stepper motor; the position-sensitive detector is connected to the laser transceiver module and the control module respectively; the stepper motor is connected to the control module;
[0015] The position-sensitive detector is used to identify the laser orientation of the laser signal;
[0016] The control module is further configured to generate motor drive commands based on the difference between the laser azimuth and the target azimuth; and to drive the stepper motor through the motor drive commands to adjust the mounting position of the first laser communication box on the vehicle top.
[0017] Furthermore, the position parameters of the first laser communication box on the vehicle top include at least one of the following: orientation angle, vertical height, and planar coordinates.
[0018] Furthermore, the vehicle collision avoidance system also includes: a function control key; the function control key is used to enable or disable the vehicle collision avoidance system.
[0019] Furthermore, the function control keys are mounted on the steering wheel.
[0020] Furthermore, the control module includes an FPGA.
[0021] This application also provides a vehicle that includes a vehicle collision avoidance system as described in any of the above embodiments.
[0022] This application provides a vehicle collision avoidance system and a vehicle. The vehicle collision avoidance system includes: a first laser communication box, a vehicle controller, and a vehicle speed adjustment actuator. The first laser communication box includes a laser transceiver module, an optical module, and a control module. The first laser communication box is installed on the top of the vehicle. The laser transceiver module is connected to the optical module, and the optical module is connected to the control module. The first laser communication box is connected to the vehicle controller through the control module, and the vehicle controller is connected to the vehicle speed adjustment actuator. The laser transceiver module is used to receive laser signals sent by a preceding vehicle through laser communication. The optical module is used to convert the laser signals into a preceding vehicle speed signal through photoelectric conversion. The control module is used to receive the vehicle speed signal sent by the vehicle controller and determine the speed difference signal between the preceding vehicle speed signal and the vehicle speed signal. The vehicle controller is used to receive the speed difference signal sent by the control module and adjust the vehicle speed according to the speed difference signal through the vehicle speed adjustment actuator.
[0023] In this way, by installing a laser communication box on the roof of the vehicle, the speed of the vehicle in front can be obtained in a timely and accurate manner, based on the characteristics of laser transmission such as fast transmission speed, low latency, and less susceptibility to factors such as bad weather and sunlight. The vehicle speed can then be adjusted according to the speed of the vehicle in front to reduce the risk of collision and ensure driving safety.
[0024] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This illustration shows one of the structural schematic diagrams of a vehicle collision avoidance system provided in an embodiment of this application;
[0027] Figure 2 An installation schematic diagram of a laser communication box provided in an embodiment of this application is shown;
[0028] Figure 3 This is a second schematic diagram of the structure of a vehicle collision avoidance system provided in an embodiment of this application. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without inventive effort falls within the scope of protection of this application.
[0030] Research has found that vehicles traveling on highways frequently encounter low visibility conditions, such as fog, haze, heavy rain, and blizzards. In such situations, drivers cannot accurately observe the vehicle ahead in time, increasing the risk of multi-vehicle collisions and resulting in loss of life and property. To prevent chain-reaction rear-end collisions, current technology often employs Automatic Emergency Braking (AEB) systems, which use cameras or radar to detect when the distance to an obstacle is too small and automatically apply the brakes.
[0031] However, in low visibility conditions, the imaging effect of cameras will be greatly reduced, and the radar's perception ability will also be much worse than before. At this time, the role of AEB will be greatly reduced at any speed, making collisions more likely and affecting driving safety.
[0032] Based on this, embodiments of this application provide a vehicle collision avoidance system to address the problem that vehicles are prone to collisions in low visibility conditions, affecting driving safety.
[0033] Please see Figure 1 , Figure 1 This is one of the structural schematic diagrams of a vehicle collision avoidance system provided in an embodiment of this application. Figure 1 As shown in the figure, the vehicle collision avoidance system 100 provided in this application embodiment includes: a first laser communication box 110, a vehicle controller 120, and a vehicle speed adjustment actuator 130; the first laser communication box includes a laser transceiver module 111, an optical module 112, and a control module 113; the laser transceiver module is connected to the optical module, and the optical module is connected to the control module; the first laser communication box is connected to the vehicle controller through the control module, and the vehicle controller is connected to the vehicle speed adjustment actuator.
[0034] The first laser communication box is installed on the top of the vehicle, more specifically on the exterior top of the vehicle, to facilitate communication with other vehicles.
[0035] The control module includes an FPGA, which has a faster decoding speed than traditional vehicle infotainment chips, thus better reducing the risk of collisions.
[0036] The laser transceiver module is used to receive laser signals sent by the preceding vehicle through laser communication. Here, the preceding vehicle also has laser communication capabilities, and the vehicle's laser transceiver module receives the laser signals sent by the preceding vehicle by establishing a laser communication connection with it. The establishment of the laser communication connection and the method of receiving the laser signals can refer to existing technologies.
[0037] The optical module is used to convert the laser signal into a vehicle speed signal through photoelectric conversion. Here, photoelectric conversion refers to converting the optical signal into an electrical signal, and the specific conversion method can refer to existing technology.
[0038] The control module is used to receive the vehicle speed signal sent by the vehicle controller and determine the speed difference signal between the preceding vehicle speed signal and the vehicle speed signal. Here, the control module can determine the difference between the preceding vehicle speed and the vehicle speed at each moment by subtraction calculation, thereby forming the speed difference signal.
[0039] The vehicle controller receives the speed difference signal sent by the control module and adjusts the vehicle speed via the speed adjustment actuator based on the speed difference signal. Specifically, the vehicle controller can control the speed adjustment actuator to adjust the vehicle speed according to the speed interpolation signal, ensuring that the vehicle speed matches the speed of the vehicle in front, thereby reducing the risk of collision. The specific control method of the vehicle controller can refer to existing technologies, such as PID control. The speed adjustment actuator includes various actuators, such as brakes, accelerators, and motor drivers.
[0040] Furthermore, the vehicle collision avoidance system also includes a second laser communication box; the second laser communication box has the same composition and connection relationship as the first laser communication box; the second laser communication box also includes a laser transceiver module, an optical module and a control module, the laser transceiver module is connected to the optical module, and the optical module is connected to the control module; the second laser communication box is connected to the vehicle controller through the control module.
[0041] The second laser communication box is installed on the top of the vehicle, but in a different position than the first laser communication box; the second laser communication box is used to establish a laser communication connection with the following vehicle in order to send laser signals to the following vehicle.
[0042] Please see Figure 2 , Figure 2 This is a schematic diagram illustrating the installation of a laser communication box according to an embodiment of this application. Figure 2As shown, the laser transceiver module 110 of the first laser communication box and the laser transceiver module 210 of the second laser communication box respectively include a signal transmitting end and a signal receiving end; the signal transmitting end 1111 and the signal receiving end 1112 of the first laser communication box 110 face the front of the vehicle, and the signal transmitting end 2111 and the signal receiving end 2112 of the second laser communication box 210 face the rear of the vehicle.
[0043] For further details, please refer to Figure 3 , Figure 3 This is a second schematic diagram of a vehicle collision avoidance system provided in an embodiment of this application. Figure 3 As shown, the first laser communication box also includes: a position-sensitive detector 114 and a stepper motor 115; the position-sensitive detector 114 is connected to the laser transceiver module 111 and the control module 113 respectively; the stepper motor 115 is connected to the control module 113.
[0044] The position-sensitive detector is used to identify the laser orientation of the laser signal. Here, PSD is a position-sensitive detector that can convert the incident laser point position into an electrical signal.
[0045] The control module is further configured to generate motor drive commands based on the difference between the laser orientation and the target orientation. Here, the target orientation can be a preset center position; the method by which the control module generates motor drive commands is existing technology, for example, by calculating the difference between the laser orientation and the target orientation through coordinate difference calculation, and then determining which direction the stepper motor needs to adjust, thereby generating motor drive commands.
[0046] The control module is also used to drive the stepper motor through the motor drive command; the stepper motor adjusts its position according to the motor drive command, thereby driving the first laser communication box to adjust its position, thereby adjusting the installation position of the first laser communication box on the top of the vehicle.
[0047] Here, the first laser communication box is not fixedly installed on the top of the vehicle, but can move in multiple directions, such as forward, backward, left, right, up, and down. The installation position is determined by the installation parameters, and the adjustable position parameters include at least one of the following: orientation angle (i.e., the angle between the laser communication box and the vehicle body direction), vertical height (i.e., the height of the laser communication box from the top of the vehicle), and planar coordinates (i.e., the coordinates of the laser communication box projected onto the plane where the top of the vehicle is located).
[0048] In this way, the laser communication box can automatically adjust the direction of the received signal through the stepper motor, ensuring real-time communication with the vehicle in front.
[0049] Furthermore, the vehicle collision avoidance system also includes: a function control key; the function control key is used to enable or disable the vehicle collision avoidance system.
[0050] The function control buttons are mounted on the steering wheel for easy driver operation. This allows the driver to activate or deactivate the vehicle's collision avoidance system as needed, preventing over-reliance and ensuring the driver remains constantly vigilant.
[0051] This application provides a vehicle collision avoidance system that, by installing a laser communication box on the top of the vehicle, can obtain the speed of the vehicle in front in a timely and accurate manner, based on the characteristics of laser transmission such as fast transmission speed, low latency, and minimal impact from factors such as severe weather and sunlight; and then adjust the vehicle speed according to the speed of the vehicle in front to reduce the risk of collision and ensure driving safety.
[0052] Based on the same inventive concept, this application also provides a vehicle, which includes a vehicle collision avoidance system as described in any of the above embodiments. Specific implementation methods can be found in the above embodiments, and will not be repeated here.
[0053] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0054] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.
[0055] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0056] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0057] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, 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 covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A vehicle collision avoidance system, characterized in that, The vehicle collision avoidance system includes: a first laser communication box, a vehicle controller, and a vehicle speed adjustment actuator; the first laser communication box includes a laser transceiver module, an optical module, and a control module; the first laser communication box is installed on the top of the vehicle. The laser transceiver module is connected to the optical module, and the optical module is connected to the control module; the first laser communication box is connected to the vehicle controller through the control module, and the vehicle controller is connected to the vehicle speed adjustment actuator; The laser transceiver module is used to receive laser signals sent by the vehicle in front through laser communication with the vehicle in front. The optical module is used to convert the laser signal into a vehicle speed signal by photoelectric conversion; The control module is used to receive the vehicle speed signal sent by the vehicle controller and determine the speed difference signal between the preceding vehicle speed signal and the vehicle speed signal. The vehicle controller is used to receive the vehicle speed difference signal sent by the control module, and adjust the vehicle speed through the vehicle speed adjustment actuator according to the vehicle speed difference signal.
2. The vehicle collision avoidance system according to claim 1, characterized in that, The vehicle collision avoidance system further includes: a second laser communication box; the second laser communication box is installed on the top of the vehicle; The second laser communication box is used to establish a laser communication connection with the following vehicle in order to send laser signals to the following vehicle.
3. The vehicle collision avoidance system according to claim 2, characterized in that, The laser transceiver module of the first laser communication box and the laser transceiver module of the second laser communication box each include a signal transmitting end and a signal receiving end; the signal transmitting end and the signal receiving end of the first laser communication box face the front of the vehicle, and the signal transmitting end and the signal receiving end of the second laser communication box face the rear of the vehicle.
4. The vehicle collision avoidance system according to claim 1, characterized in that, The first laser communication box further includes: a position-sensitive detector and a stepper motor; the position-sensitive detector is connected to the laser transceiver module and the control module respectively; the stepper motor is connected to the control module; The position-sensitive detector is used to identify the laser orientation of the laser signal; The control module is further configured to generate motor drive commands based on the difference between the laser azimuth and the target azimuth; and to drive the stepper motor through the motor drive commands to adjust the mounting position of the first laser communication box on the vehicle top.
5. The vehicle collision avoidance system according to claim 4, characterized in that, The position parameters of the first laser communication box on the vehicle top include at least one of the following: orientation angle, vertical height, and planar coordinates.
6. The vehicle collision avoidance system according to claim 1, characterized in that, The vehicle collision avoidance system also includes: a function control key; the function control key is used to enable or disable the vehicle collision avoidance system.
7. The vehicle collision avoidance system according to claim 6, characterized in that, The function control keys are mounted on the steering wheel.
8. The vehicle collision avoidance system according to claim 1, characterized in that, The control module includes an FPGA.
9. A vehicle, characterized in that, The vehicle includes the vehicle collision avoidance system as described in any one of claims 1 to 8.