基于相机在循环中的测试场景生成方法,用于行人避免碰撞系统
Bing Zhu1, Yinzi Huang1, Jian Zhao1
1Jilin University National Key Laboratory of Automotive Chassis Integration and Bionics, China.
Accident; analysis and prevention
|August 26, 2024
概括
一个新的CIL测试平台和基于贪的组合 (GBC) 方法加速了行人避免碰撞系统 (PCAS) 的测试. GBC显著提高了测试速度,同时保持了PCAS验证的准确性.
科学领域:
- 汽车工程 汽车工程
- 计算机视觉 计算机视觉
- 机器人技术 机器人技术 机器人技术
背景情况:
- 对于智能汽车 (IV) 来说,行人避免碰撞系统 (PCAS) 对于防止事故至关重要.
- 基于摄像头的PCAS由于复杂的操作环境而面临挑战,需要严格的测试.
- 传统的模拟方法缺乏全面PCAS评估所需的准确性.
研究的目的:
- 开发和验证基于摄像头的PCAS的CIL测试平台.
- 为PCAS提出一个高效的测试场景生成方法 (GBC).
- 用统计分析评估场景参数对PCAS性能的影响.
主要方法:
- 构建和验证CIL测试平台,重点是图像质量和功能可靠性.
- 开发一种基于贪的组合 (GBC) 方法,用于加速测试场景的生成.
- 应用千平方和双因素ANOVA来分析场景参数对PCAS的影响.
主要成果:
- 通过验证的图像质量和功能信心,CIL平台证明了其可信度.
- 与穿越测试相比,GBC方法加速了测试场景生成的12倍.
- 在识别关键PCAS碰撞场景时,GBC实现了与横行测试相似的准确性.
结论:
- 拟议的CIL测试平台和GBC方法为PCAS测试提供了可靠和高效的解决方案.
- GBC 方法显著提高了测试效率,而不会影响识别关键故障模式的能力.
- 这种方法对于智能汽车中可靠部署基于摄像头的PCAS至关重要.
相关概念视频
Kinematic Equations: Problem Solving
24.3K
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the appropriate kinematic equations to solve for the unknowns. Either one or two kinematic equations are needed to solve for the unknowns, depending on the known and unknown quantities. Generally, the number of equations required is the same as the number of unknown quantities in the given example. Two-body pursuit problems always require two...
24.3K
Types of Collisions - II
8.0K
When two or more objects collide with each other, they can stick together to form one single composite object (after collision). The total mass of the object after the collision is the sum of the masses of the original objects, and it moves with a velocity dictated by the conservation of momentum. Although the system's total momentum remains constant, the kinetic energy decreases, and thus such a collision is an inelastic collision. Most of the collisions between objects in daily life are...
8.0K
Elastic Collisions: Case Study
17.1K
Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
17.1K
Collisions in Multiple Dimensions: Problem Solving
4.5K
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
4.5K
Root-Locus Method
625
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
This system can be represented by a block...
625


