Vehicle inertia motion data acquisition unit

Abstract

The invention discloses a vehicle inertia motion data acquisition unit, which comprises a sensor, a signal conditioning circuit, a synchronous acquisition circuit, a data interface and an embedded memory system, wherein the sensor includes an acceleration transducer and an angular velocity transducer; the synchronous acquisition circuit includes a single chip microcomputer, a analog-to-digital (AD) conversion chip and a global position system (GPS) module; the data interface includes a universal serial bus (USB) device terminal control chip and a USB device terminal interface, the acceleration transducer and the angular velocity transducer are electrically connected with the signal conditioning circuit; the signal conditioning circuit is electrically connected with the AD conversion chip of the synchronous acquisition circuit; the AD conversion chip and the GPS module are connected with the single chip; the single chip are connected with the USB device terminal control chip of the data interface; the USB device terminal control chip is connected with the USB device terminal interface; the embedded memory system is connected with the USB device terminal interface of the data interface through a USB client interface. According to the vehicles inertia motion data acquisition unit, the safety performance of the vehicles is remarkably improved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a vehicle inertial motion data collector. Background technique [0002] The vehicle's motion data includes: the vehicle's longitudinal motion speed, lateral motion speed, motion direction, acceleration, motion trajectory, roll, pitch and other information, which are important for vehicle monitoring, control, accident identification, and assisted safe driving. significance. For example: the lateral motion speed can identify the sideslip of the vehicle and be used in vehicle control, such as electronic stability system (ESP); the acceleration can be used to identify the collision accident of the vehicle; the motion trajectory can be used to monitor the driving behavior of the driver and analyze the accident Liability (sudden lane change, emergency stop and emergency braking, etc.); roll can be used to warn of vehicle rollover; the ratio of longitudinal speed to lateral speed can be used...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a vehicle inertial motion data collector, which aims to solve the problem that the existing vehicle motion data acquisition system does not have a data acquisition device that accurately collects the inertial data of the vehicle motion process

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