Vehicle-mounted weighing system of freight train as well as weighing method

Abstract

The invention discloses a vehicle-mounted weighing system of a freight train as well as a weighing method. The weighing system comprises a weighing sensor, a connecting cable and a vehicle-mounted intelligent terminal, wherein the vehicle-mounted intelligent terminal consists of an ARM embedded controller unit, a power supply unit, a positioning unit, a wireless data transmission unit, a digital I/O interface unit, a weighing signal amplifying and conditioning circuit, an analog-digital conversion circuit and a data storage unit. A bogie strain-based indirect type weighing method is adopted bycombining the own structure of a rail wagon. For the safe working characteristic of railway freight, the weight of the wagon is monitored in real time in the loading, transportation and unloading processes of the freight train, and whole-course dynamic weighing of the whole wagon and the whole route is realized. The vehicle-mounted weighing system has remote monitoring and failure diagnosis functions, is high in measuring result precision and stability, has the characteristics of reliable performance, low cost of monitoring equipment and low requirements on mounting and use conditions, and iseasy to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of railway freight transport, and in particular relates to a real-time monitoring method for on-board weighing of freight trains. Background technique [0002] For a long time, due to the limitation of objective conditions and driven by economic interests, the phenomenon of overloading (underloading) and eccentric loading of railway freight cars has been serious, causing damage to vehicle equipment, greatly reducing service life, and even endangering traffic safety. At present, on the special railway freight car loading line in China, the loading method of most goods is still the traditional cargo loading mode. One measurement method is to calculate the product of the volume and the density of the goods. This method cannot guarantee the measurement accuracy; another One is to use a fixed weighing track scale. Although the measurement accuracy is guaranteed, the carriage needs to be pulled to the track scale ...

AI Technical Summary

Problems solved by technology

[0002] For a long time, due to the limitation of objective conditions and driven by economic interests, the phenomenon of overloading (underloading) and eccentric loading of railway freight cars has been serious, causing damage to vehicle equipment, greatly reducing service life, and even endangering traffic safety.

At present, on the special railway freight car loading line in China, the loading method of most goods is still the traditional cargo loading mode. One measurement method is to calculate the product of the volume and the density of the goods. This method cannot guarantee the measurement accuracy; another One is to use a fixed weighing track scale. Although the measurement accuracy is guaranteed, the carriage needs to be pulled to the track scale for weighing, which is inconvenient

The above two methods are either inaccurate or inconvenient, and neither can realize the weighing needs at any time.

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