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Method for vehicle overload detection by using GNSS

A technology for vehicles and vehicle driving, which is applied in the fields of high-precision data processing and satellite navigation

Inactive Publication Date: 2020-10-23
SHANGHAI HUACE NAVIGATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Vehicle overload detection equipment is widely used in daily traffic road monitoring. The equipment required includes pressure sensors, A / D converters, microprocessors with displays, etc., and needs to be fixed in the flat plate on the ground, and the detection location is fixed, which has limitations.

Method used

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  • Method for vehicle overload detection by using GNSS
  • Method for vehicle overload detection by using GNSS
  • Method for vehicle overload detection by using GNSS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for vehicle overload detection with GNSS, comprising the following steps:

[0025] Step 1: The vehicle is driving on a flat road, and the built-in GNSS navigation device measures the vehicle speed v at time t t , the acceleration a is obtained from the vehicle accelerometer t .

[0026] Step 2: When the vehicle is driving on a flat road, the resultant force

[0027] f 合 =F 牵 -F 阻 =m*a

[0028]

[0029] f 阻 =F f +F w

[0030] f f =G*f

[0031]

[0032] Among them, F 合 represents the resultant force on the vehicle, F 牵 represents the tractive force of the vehicle, F 阻 Represents the resistance experienced by the vehicle. P is the effective power of the engine, v is the vehicle speed, F f is the rolling resistance, F w is the air resistance, G is the gravity of the vehicle G=m*g, where g is the acceleration of gravity, C is the air resistance coefficient, A is the windward area of ​​the car, f is the rolling resistance coefficient, f is a fu...

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Abstract

The invention provides a method for vehicle overload detection by using GNSS. The method comprises the following steps: calculating a vehicle speed based on GNSS, calculating a vehicle traction force,air resistance and rolling resistance at a corresponding speed, and calculating a vehicle mass. By means of the method, when the vehicle linearly runs on the flat road surface, the GNSS can be used for detecting the mass of the vehicle in real time, and whether the vehicle is overloaded or not is judged. According to the invention, the vehicle mass can be measured only by GNSS navigation equipment of the vehicle without the help of external equipment of the vehicle so that the measurement cost is reduced. The mass of the vehicle can be measured only when the vehicle linearly runs on a flat road surface, the measurement position does not need to be fixed, and the flexibility of vehicle overload measurement is improved.

Description

technical field [0001] The invention relates to the field of satellite navigation, especially in the field of high-precision data processing. Background technique [0002] Vehicle overload detection equipment is widely used in daily traffic road monitoring. The equipment required includes pressure sensors, A / D converters, microprocessors with displays, etc., and needs to be fixed in the flat plate on the ground, and the detection location is fixed, which has limitations. . High-precision positioning is now widely used in various surveying and mapping and carrier navigation fields. In the field of vehicle navigation, the mass of the vehicle can be calculated according to the vehicle's own navigation equipment. Based on the principle of GNSS positioning, the present invention proposes a method for calculating vehicle mass based on GNSS. The method does not need external equipment of the vehicle, and the vehicle mass can be measured when the vehicle is running straight on a f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03G01S19/42G01G23/00
CPCG01G19/03G01G23/005G01S19/42
Inventor 王超刘强张沛尧吴亮亮俞岭赵斐斐党永平司吉红
Owner SHANGHAI HUACE NAVIGATION TECH