Vehicle-mounted data collection terminal for constructing light vehicle driving condition

Abstract

The present invention provides a vehicle-mounted data collection terminal for constructing a light vehicle driving condition, including a microcontroller, a data post-processing module, a CAN bus acquisition module, a K-LINE control module, a GPS module, a GPRS / 3G module, a display diagnosis module, a storage module, a clock module and a power module. The present terminal effectively makes up for the shortages of existing terminals such as low sampling frequency and insufficient function to meet the construction requirements of the working condition. The terminal is equipped with the clock module, which can provide time service for vehicle terminals without obtaining valid GPS time service. At the same time, when the vehicle-mounted terminal is disconnected, the collected data is temporarily stored. After the terminal resumes communication, the data collected during the disconnection is promptly replaced to achieve the real-time collection of the vehicle driving condition data. The terminal can cut the collected vehicle speed signal into short strokes, and upload the short strokes to the server, thereby being very suitable for construction requirements.

Description

technical field [0001] The invention belongs to the field of transportation, and in particular relates to a vehicle-mounted data acquisition terminal used for construction of light vehicle driving conditions. Background technique [0002] Vehicle driving conditions are an important basic standard in the automotive industry, an important design input in the development of automotive products, the main benchmark for the calibration and optimization of various performance indicators of vehicles, and the basis for emission and fuel consumption certification. The traditional construction method of working conditions is to plan the test route in advance, then install data acquisition equipment on the vehicle, and collect vehicle data by means of local storage. The operating condition curve constructed by this method has high requirements for the previous test planning, and my country has great differences in traffic conditions, rules, driving habits and professionalism of drivers,...

AI Technical Summary

Problems solved by technology

Existing terminals with long-distance transmission functions are not specially developed for working conditions, and their sampling frequency is usually low, and they will not upload data when there is no GPS signal or other reasons that cause the terminal to fail to receive GPS timing normally

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