A vehicle driving state wireless monitoring device based on a rotary encoder

Abstract

A vehicle driving state wireless monitoring device based on a rotary encoder is disclosed. The device is characterized by a high measurement resolution, good speed collection real-time performance and a high speed measurement resolution. The device comprises a sending terminal and a receiving terminal. The sending terminal and the receiving terminal are connected and communicated with each other through wireless communication modules. The sending terminal is mounted to a vehicle to be monitored. The receiving terminal monitors the driving state of the vehicle to be monitored in real time. The sending terminal comprises a controller 1, a data memory module mutually connected to the controller 1, a wireless sending module mutually connected to the controller 1, a power module in one-way connection with the controller 1, and a speed collecting module in one-way connection with the controller 2. An input terminal of the speed collecting module is connected to the rotary encoder. The receiving terminal comprises a wireless receiving module, a controller 2 mutually connected to the wireless receiving module and a USB interface module mutually connected to the controller 2. The USB interface module is connected to a host computer.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, and in particular relates to a wireless monitoring device for vehicle driving state based on a rotary encoder. Background technique [0002] Factors that affect the measurement accuracy of dynamic vehicles include temperature, humidity, power supply, interference, weighing speed, etc. At present, the test methods for these influencing factors are also given, but the impact of vehicle acceleration on dynamic weighing results is not pointed out. After on-site observation, it was found that when the vehicle passed the weighing platform with a certain acceleration, there was a large error in the measurement. In view of the above problems, a wireless monitoring device for vehicle driving status has been developed, which collects the vehicle speed during weighing in real time, and performs differential calculation on the collected speed data to calculate the acceleration of the vehicle, ...

AI Technical Summary

Problems solved by technology

The two-way pressure sensor speed measurement method collects the speed of the vehicle traveling over a long distance. The speed data is relatively simple, and it is impossible to measure the instantaneous speed of the vehicle when it passes the weighing platform, and it cannot meet the requirements of studying the relationship between dynamic weighing results and acceleration.

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