Driving behavior analysis method based on vehicle-mounted monitoring and management platform

Abstract

The invention provides a driving behavior analysis method based on a vehicle-mounted monitoring and management platform. The method comprises the steps that: a terminal collects vehicle state data; the terminal packages and uploads the vehicle state data; a front-end processor transmits data uploaded by the terminal to a service server; the service server stores the initial vehicle state data into a database; the service server calculates a driving behavior analysis result; after the driving behavior analysis result is obtained, a monitoring work station is informed of the driving behavior analysis result; after driving behavior analysis result is obtained, the terminal is informed of the driving behavior analysis result; and the driving behavior analysis result is stored in the database. According to the invention, in a driving behavior analysis model generation process, many factors such as different road conditions, weathers, different road segments and different drivers are considered, and the rationality of practical application of an original single driving behavior analysis model is improved.

Description

【Technical field】 [0001] The invention relates to a driving behavior analysis method based on a vehicle-mounted monitoring and management platform. 【Background technique】 [0002] The vehicle-mounted driving recorder terminal (hereinafter referred to as the terminal) can obtain vehicle-related status information in the following ways: 1. The CAN bus on the terminal is connected to the CAN bus of the vehicle engine to obtain vehicle-related status information from the engine (such as gear information, accelerator opening, etc.) speed, speed, torque, etc.); 2. The vehicle speed pulse IO interface line on the terminal is connected to the vehicle speed pulse signal line to obtain vehicle speed pulses; 3. The terminal is connected to the combined positioning and navigation module through the serial port to obtain vehicle latitude and longitude, direction, elevation, acceleration, etc. information. The information obtained above is in the terminal software, after a series of calc...

AI Technical Summary

Problems solved by technology

[0007] 1. The driving behavior analysis model is single: the terminal software program adopts a unified algorithm (calculation model), and the analysis of driving behavior is ultimately to serve as an early warning of traffic accidents. In practice, in some cases, the analyzed data cannot actually help drivers to give warnings

For example, when there is a red warning signal of heavy fog in the weather, the visibility is less than 50 meters. On the road section where the speed limit of the expressway is originally 120 kilometers, if it is actually driven to 40 kilometers, it is already very dangerous and accidents are prone to occur.

However, relying on a single computing model of the terminal, it is impossible to analyze this behavior

[0008] 2. It is very difficult to upgrade and expand: since the algorithm is implemented by terminal software programs, every time a new driving behavior analysis model is added or the original driving behavior analysis model is modified, all terminal software programs on the Internet must be upgraded , may have to upgrade tens of thousands or even hundreds of thousands of terminal software, the workload is huge

[0009] 3. Errors may occur and cannot be identified: Due to the limited 2G bandwidth of the terminal, under normal circumstances, the upload frequency is generally set to about once every 30 seconds, and it is impossible to upload all the original data of a large amount of vehicle status (the original data used for driving behavior analysis) data) are all uploaded to the platform, and only the vehicle status and driving behavior analysis results uploaded once can be uploaded to the platform

If there is a dispute in the actual application and the driver has doubts about the final uploaded driving behavior analysis results, since the original data has been lost, it is impossible to judge whether the bad driving behavior really occurred or the terminal software malfunction caused the driving behavior analysis results Misjudgment

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