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Intelligent safe driving control system of vehicle based on STM32

A control system, intelligent technology, applied in the computer field, to achieve the effect of reducing the incidence of automobile accidents, high reliability, and reducing traffic jams

Pending Publication Date: 2020-07-03
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the existing technology, this device effectively solves the following key problems: real-time detection of longitudinal driving distance and driving speed, and real-time calculation of the minimum longitudinal safe driving distance, and provides auxiliary safety to the driver after comprehensive data calculation by STM32 Driving information; when the system foresees a danger, it will send an alarm to the front, rear and its own vehicle to remind the driver to drive carefully

Method used

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  • Intelligent safe driving control system of vehicle based on STM32
  • Intelligent safe driving control system of vehicle based on STM32
  • Intelligent safe driving control system of vehicle based on STM32

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A vehicle intelligent safety driving control system based on STM32, the main features are figure 1 The composition block diagram mainly includes STM32 main control module (1-1), ultrasonic ranging module (1-2, 1-3), voice alarm module (1-4), LCD display module (1-5), infrared Speed ​​measurement module (1-6), wireless transmission module (1-7), motor drive module (1-10), power supply module (1-11), they communicate with external sensors through various protocols and achieve stable operation; the infrared speed measurement module (1-6) is responsible for detecting the speed of the vehicle, and the ultrasonic ranging module (1-2, 1-3) is responsible for measuring the distance from the vehicle in front, and then transmits the data to the STM32 main control module (1 -1), at the same time, the timer in the STM32 main control module (1-1) is also recording the time difference from sending out the ultrasonic wave to receiving the ultrasonic wave; the STM32 main control module...

Embodiment 2

[0021] The structure diagram of the power module of a vehicle intelligent safety driving control system based on STM32 is as follows: figure 2 As shown, including 12V lithium battery pack (2-1), LM2940 voltage regulator (2-2), LM1117 voltage regulator (2-3), motor drive circuit (2-4), steering gear circuit (2-5 ), sensor (2-6), peripheral circuit (2-7), STM32 I / O interface (2-8), DC motor (2-9), the power module uses 12V lithium battery pack (2-1) as The system operation provides the initial power supply, and converts the latest 12V voltage value through step-down technology; the 12V lithium battery pack (2-1) supplies voltage to the DC motor (2-9), and the 12V lithium battery pack ( 2-1) The positive and negative poles at both ends are respectively connected to the two power interfaces of the DC motor (2-9), and the DC motor (2-9) can run normally; in order to provide the STM32 main control module (1-1) When the peripheral circuit (2-7) supplies power, the voltage value of ...

Embodiment 3

[0024] A steering gear module (2-5) of an STM32-based vehicle intelligent safety driving control system such as Figure 4 As shown, the connection method with the STM32 I / O interface (2-8) is determined according to the difference in the type of steering gear, and three configuration lines are drawn from the steering gear (4-2): signal line, power line VCC, and ground line GND ;During the execution process, first detect the (4-2) DC bias voltage in the servo module and compare it with the potentiometer voltage to obtain a difference, and then send it to the motor drive module (1-10), so that the adjustment can be achieved The purpose of the forward and reverse function of the motor; the steering gear (4-2) can also use PWM to achieve corresponding regulation, adjust its duty cycle so that the corresponding operation of the steering gear (4-2) can be adjusted; in this system, STM32 main control chip (1-1) can generate duty cycle and adjustable PWM signal between 0.5 millisecond...

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PUM

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Abstract

The invention relates to an intelligent safe driving control system of vehicle based on STM32, and belongs to the technical field of computers. The design of the invention aims to make up the defectsof the existing safe driving system, and mobile phone software is used for controlling a trolley through Bluetooth according to analysis of the main causes of traffic accidents. Implementation of thedesign comprises a software part and a hardware part. The hardware part adopts modular design, STM32 is adopted as a core control unit, and a data transmission module, a speed detection module, a liquid crystal display module and the like are attached to construct overall hardware architecture of the intelligent safe driving control system of the vehicle. The software part needs to be combined with the hardware architecture, the functions of all the modules are achieved in Keil MDK through the c language, and then the design of the intelligent safe driving control system of the vehicle is achieved. The system is mainly applied to intelligent driving control facilities of public roads.

Description

technical field [0001] The invention specifically relates to a vehicle intelligent safe driving control system based on STM32, which belongs to the field of computer technology. Background technique [0002] Compared with foreign countries, my country's intelligent safety driving control system started relatively late, starting around the 1980s in the 20th century. Compared with other developed countries, the current domestic research results still have a long way to go. Coupled with the increasing domestic traffic load, the demand for better driving control and driving safety systems is becoming increasingly urgent. Smart cars are called unmanned vehicles, which integrate many high-tech, integrated sensor detection, electronic engineering, computer engineering, mechanical engineering, automation control engineering and artificial intelligence and other multi-disciplinary research results. Intelligent transportation can effectively improve traffic efficiency, reduce traffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0242G05D1/0255G05D1/0223G05D1/0214G05D1/0276
Inventor 于天河柳梦瑶
Owner HARBIN UNIV OF SCI & TECH
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