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Vehicle weight measuring method based on GPS (Global Position System) and inertial sensor

An inertial sensor and vehicle measurement technology, applied in the field of road transportation monitoring, can solve the problems of being susceptible to errors, inconvenient installation, poor robustness, etc., and achieve the effects of good reliability and robustness, and easy installation.

Active Publication Date: 2015-01-07
SUN YAT SEN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is to add pressure sensors to the elastic parts of the monitoring vehicle, which is inconvenient to install, which is not conducive to meeting the monitoring needs of a large number of vehicles, and is easily affected by errors and has poor robustness.

Method used

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  • Vehicle weight measuring method based on GPS (Global Position System) and inertial sensor
  • Vehicle weight measuring method based on GPS (Global Position System) and inertial sensor
  • Vehicle weight measuring method based on GPS (Global Position System) and inertial sensor

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Embodiment Construction

[0031] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0032] The measurement system integrating GPS, three-axis acceleration sensor and angular velocity sensor and embedded platform will be fixed near the upper rear axle of the monitored vehicle. GPS sampling rate is 1Hz, acceleration range is above ±1g, angular velocity is ±300° / s, and sampling rate is both 1000Hz.

[0033] After booting up, the monitoring program can run automatically.

[0034] 1. Parameter calibration mode:

[0035] For a specific car model, parameter calibration is required first.

[0036] After installing and fixing the monitoring system, drive on urban roads with an empty vehicle for 20 minutes. The driving process should include multiple turns. The program completes the sensor self-calibration and GPS delay, the calibration is like image 3 As shown in the algorithm, statistical empty vehicle roll gain K 1 ,(Such as Figure 4 Algorithm...

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Abstract

Aiming at the problems and through application experience of a practical monitoring system, the invention provides a vehicle weight measuring system based on a GPS (Global Position System) and an inertial sensor, which is low in measuring device cost, is convenient to install behind and achieves supervision and administration effects on overload illegal behaviors, so as to realize a using effect of a full monitoring system. The vehicle weight measuring system comprises an ARM (Automatic Route Management) embedded system and a data acquisition module, wherein the data acquisition module is connected with an acceleration sensor and an angular velocity sensor; and the data acquisition module is integrated with a GPS module.

Description

Technical field [0001] The invention is suitable for the field of road transportation monitoring, and particularly relates to overweight monitoring technology. Background technique [0002] With the continuous development of the national economy, the transportation industry has developed rapidly and its scale has been continuously expanded. At the same time, the overload problem in my country's road transportation has become more and more serious, and it has become a prominent social problem that endangers the lives of the people and affects social and economic coordination and healthy development. However, due to the backwardness of vehicle weighing technology, the supervision effect of overloading violations is not significant. Therefore, improving vehicle weighing technology has become a key issue. [0003] At present, the commonly used vehicle weighing methods are mainly divided into two methods: external measurement and internal measurement: [0004] 1) Among the external mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/03
Inventor 余志曾桓涛张辉陈锐祥伍成柏
Owner SUN YAT SEN UNIV
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