Sensor fault detection method of dynamic vehicle-mounted weighing system
A technology of sensor failure and on-board weighing, which is applied in the direction of weighing equipment testing/calibration, instruments, weighing, etc., can solve problems such as large traffic volume, low accuracy, and measurement technology sensor failure, so as to reduce noise interference and improve Accuracy, effect of reducing workload
Inactive Publication Date: 2021-08-03
ZHEJIANG UNIV OF TECH
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Problems solved by technology
However, due to the existence of problems such as large traffic volume and severe overloading, the functionality, durability, economy and safety of my country's road transportation infrastructure are facing great challenges.
The current dynamic weighing technology is not perfect, and the immature measurement technology is accompanied by sensor failure, resulting in poor measurement results and low accuracy, which cannot meet the current needs of dynamic weighing equipment.
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[0044] In order to make the technical solutions, objectives and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0045] Such as figure 1As shown, a sensor fault detection method of a dynamic vehicle weighing system is characterized in that, the sensor fault detection method of the dynamic vehicle weighing system includes two stages of offline state and online state, wherein the offline state includes the following step:
[0046] S1: Make the dynamic on-board weighing system run normally for a period of time, and collect the sensor data of the on-board weighing system during this period of time;
[0047] S2: Preprocess ...
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The invention relates to a sensor fault detection method for a dynamic vehicle-mounted weighing system, wherein the method comprises the steps: firstly obtaining the related information of a sensor of the dynamic vehicle-mounted weighing system, and building an original data database; secondly, preprocessing the data set, and removing noise signals; and then calculating a fault detection threshold and a fault separation model based on the preprocessed data set. In the online state, the same mode is adopted to collect data and calculate the absolute value sum of time windows, the absolute value sum is compared with a fault detection threshold value, and then the system fault strength and the fault type are determined through a fault estimation method. According to the method, whether the vehicle-mounted weighing system sensor has faults or not can be detected, meanwhile, the faults are classified, a complex mathematical model does not need to be constructed, and the fault detection rate can be increased on the premise that the fault diagnosis frequency is reduced.
Description
technical field [0001] The invention relates to the field of on-vehicle weighing, in particular to a sensor fault detection method of a dynamic on-vehicle weighing system. Background technique [0002] With the rapid development of my country's economy, infrastructure construction projects are also booming. The development of economic construction and engineering technology innovation have brought profound changes to my country's transportation system and urbanization. As the core part of my country's transportation system, highway transportation plays an important role in the production and life of the people and the economic growth of the country. However, due to the existence of problems such as large traffic volume and serious overloading, the functionality, durability, economy and safety of my country's road traffic infrastructure are facing great challenges. The current dynamic weighing technology is not perfect, and the immaturity of the measurement technology is ac...
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IPC IPC(8): G01G23/01G01G19/02
CPCG01G23/01G01G19/02
Inventor 王宪保段明明周宝余皓鑫
Owner ZHEJIANG UNIV OF TECH