Small vehicle-mounted vehicle safety comprehensive detection system

Abstract

In order to overcome the technical defects that in an existing vehicle-mounted detection system, the detection data volume is limited, a detection signal has poor synchronism, and the whole state detection and the whole performance evaluation of a vehicle system cannot be realized, the invention provides a small vehicle-mounted vehicle safety comprehensive detection system. The system takes an FPGA (Field Programmable Gate Array) as a core processor, and is combined with an external vehicle sensor and an A / D (Analog-Digital) conversion chip to comprehensively detect a driving state and a driving environment of a vehicle, collected GPS (Global Position System) time data is utilized to send out a synchronization pulse to control a vehicle-mounted sensor to sample data, the time synchronization of a detection signal of each vehicle-mounted sensor is ensured, the system does not need a computer or other core processing units such as a DSP (Digital Signal Processor) and an ARM (Advance RISC Machine), and the technical problems that in the existing vehicle-mounted detection system, the detection data volume is limited, the detection signal has poor synchronism, and the whole state detection and the whole performance evaluation of the vehicle system cannot be realized are solved.

Description

technical field [0001] The invention relates to a small vehicle safety comprehensive detection system, which belongs to the field of industrial measurement and control technology and traffic vehicle driving safety technology. Background technique [0002] The comprehensive detection of the performance of the driving vehicle system is the basic requirement for judging the running state of the vehicle and evaluating the safety of the vehicle; The most direct factor of traffic accidents; especially, for mountainous roads in complex environments, with large slopes, many curves, and poor road surface roughness, large vibrations will be generated when the vehicle is driving, and the steering performance will also deteriorate, which will directly lead to Vehicle sideslip or rollover accidents pose a huge threat to human life and property safety; comprehensive detection of vehicle steering parameters, sideslip displacement, driving speed, body posture, road conditions, and interior ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical defects of the existing vehicle-mounted detection system, such as the limited amount of detection data, poor synchronization of detection signals, and the inability to realize the overall state detection and overall performance evaluation of the vehicle system, the present invention provides a small vehicle-mounted vehicle safety comprehensive detection system. Using FPGA as the core processor, combined with external on-board sensors and A / D conversion chips, comprehensively detects the vehicle's driving status and driving environment, uses the collected GPS time data to send out synchronous pulses to control the on-board sensors to sample data, and ensures that each on-board sensor The time synchronization of detection signals, the system does not require core processing units such as computers or DSP, ARM, etc., which solves the problem that the existing vehicle detection system has limited detection data, poor synchronization of detection signals, and cannot realize the overall state detection and performance evaluation of the vehicle system technical issues

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