(Retracted) Laser radar-based intelligent vehicle target recognition and detection system using image detection technology

Abstract

.In recent years, with the progress of society and the development of the economy, the number of cars in China has been increasing. In wireless communication networks, the choice of wireless nodes has a greater impact on the improvement of system performance (such as channel capacity, coverage area, etc.). The intelligent vehicle target detection system can perceive and recognize the surrounding objects such as pedestrians and vehicles through sensors, which is the basis for realizing the unmanned driving of intelligent vehicles. In a wireless environment where multiple wireless nodes coexist, current research focuses on how long it takes to re-plan the selection of wireless nodes (for mobile environments) and how to allocate and manage wireless nodes, such as where under the conditions of wireless, who will wireless with whom, and in what way (such as auto focus, digital fusion, or other) wireless, etc.; the dedicated centralized controller (such as the base station of the infrastructure-based wireless access network) determines the wireless partner (i.e., centralized type selection), or the wireless node decides by itself (i.e., distributed selection); select the appropriate number of wireless nodes to take into account the system performance gain and implementation complexity. The popularity of automobiles has brought great convenience to people’s lives, but it has also brought greater traffic pressure. At present, the amount of domestic automobile traffic has increased exponentially, and urban traffic congestion has become more serious, and even caused serious traffic accidents, directly affecting people’s quality of life. The emergence of intelligent transportation systems has effectively alleviated road traffic pressure and reduced the incidence of traffic accidents. As an important part of the intelligent transportation system, the research of intelligent vehicles has received extensive attention. Intelligent vehicles use a variety of sensors installed on the body to sense the environment, and realize intelligent driving functions such as lane line detection, obstacle detection, dynamic cruise control, and unmanned driving, which is conducive to reducing the incidence of traffic accidents and improving the safety of vehicle driving. At present, in the research of target recognition and tracking of intelligent vehicles, the traditional target detection method is mainly based on artificial feature extraction, which is difficult to describe more complex or higher-order image features, and the tracking effect is not good, which limits the target detection. An intelligent vehicle is an intelligent system with functions such as environment perception, planning decision-making, and operation control, and is an important part of the intelligent transportation system. Identify the effect. In response to these problems, we present a study of the target recognition and tracking of intelligent vehicles based on grid map and lidar sensor technology. To verify the proposed method in the actual scene, we identify ...

Design of measuring method for parameters of gun chamber

“…According to the current research and practice conclusions, the measuring method with ring structure light is greatly influenced by the internal conditions of the gun bore and the external illumination. The measuring method based on the optical grating sensor is difficult to fully adapt to the abrupt changes of measured dimensions such as in and out of the gun bore, and the design of two pairs of orthogonal grating on the same section makes the structure very complicated [6][7][8][9]. Based on this, a new method is designed to measure the chamber diameter by taking the images representing the relative position change of the two pairs of orthogonal measuring head.…”

Enhancing Sustainable Transportation with Advancements in Photonic Radar Technology with MIMO and IIR Filtering for Adverse Weather Conditions

“…Photonic radar technology stands out as an exceptional method for gathering critical information about the traffic environment. This includes data on speed, altitude, and distance and the capture of images of multiple targets, thereby providing a comprehensive understanding of the surrounding vehicular conditions [7]. Photonic radar technology uses an optical carrier to transmit modulated radio frequency signals towards a target, and by processing the reflected echoes, the necessary information can be obtained [8][9][10].…”

Design on measurement method for inner diameter of small-caliber tube

“…The traditional mechanical measurement method used currently is inefficient, its measurement accuracy is greatly affected by human factors, and the measurement data needs to be processed manually. References [1][2][3] have designed contact-type measurement methods based on grating, inductive, and capacitive displacement transducers, the measurement accuracy is better than 0.01mm, but the measuring body cannot adapt to the occasions for measuring the inner diameter of Ø23mm-Ø37mm tube; References [4][5] have designed a non-contact measurement method based on annular structured light, but this method is greatly affected by the internal condition of the tube and change of the external light, and its measurement accuracy is found only reach 0.05mm in application, so it cannot meet the measurement accuracy requirements of the testing ground. References [6][7][8][9][10] have designed a non-contact measurement method with laser displacement transducers, but the measurement results of this method are easily affected by the ablation pits inside the tube, and the measuring body is difficult to be miniaturized, and it cannot meet the measurement requirements of the Ø23mm tube.…”