KEYWORDS: Signal detection, Sensors, Design and modelling, Signal processing, Distance measurement, Control systems, Radar, Safety, Process control, Head
Traffic accidents caused by wrong stepping on the accelerator when braking due to the driver's fault or the driver's error in busy work are not uncommon. In order to avoid such traffic accidents, a more accurate and effective control system is designed to prevent accidentally stepping on the accelerator when braking. The system takes the gear position of the vehicle gearbox, driving speed, engine speed and the distance between the vehicle and the front and rear obstacles as the discrimination threshold of accidentally stepping on the accelerator, the vehicle electronic controller ECU performs signal discrimination and processing, controls the throttle opening of the engine, reduces the vehicle power, and starts the braking system, so as to reduce the vehicle speed until it stops.
Container loading is an important step in the process of cargo transportation and belongs to the NP-hard problem. All different sizes of containers are loaded into different sizes of containers and the space utilization of containers is maximized. In this paper, we mainly study the loading layout of a single container, and establish a mathematical model with the volume, load capacity, cargo direction and stability of the container as constraints and the utilization rate of container space as the final goal. Space partitioning, simple block generation heuristic algorithm and depth-first search algorithm are used to solve the model. The feasibility and applicability of the algorithm were verified by specific cargo data. The average volume utilization rate of three foreign trade containers is higher than 89%, which achieves the ideal crating effect and proves the effectiveness and feasibility of the algorithm.
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