Sensor node used for railway frozen earth roadbed safety monitoring and its operation method

Abstract

The present invention provides a sensor node for safety monitoring of rail way frost soil subgrade and its working method, including an inter electric connecting sensor module, a processing communication module and an energy supplying module. The printed board of the first sensor module is set with multiple digital temperature sensors, a humiture sensor, for the distributed measurement of the permafrost temperature and the measurement of the air humiture on the surface of the frost soil, the printed board of the second sensor module is set with a triaxial acceleration transducer for measuring the rail vibrating acceleration; when starting the sensor node to process monitor, the first sensor module, the second sensor module of the sensor module measure the frost soil parameter to transmit to the processing communication module through the energy supplying module, after being primarily treated by the processing communication modle, transmitting directly by the processing communication module or indirectly by the sensor node to the monitor center, for subsequent analysis and treatment. The invention provides a new resolving path for the rail way frost soil subgrade.

Description

technical field [0001] The invention belongs to the field of frozen soil monitoring, and in particular relates to a sensor node and a working method for safety monitoring of railway frozen soil embankment. Background technique [0002] At present, countries such as Russia, the United States, and Canada have built several railways in permafrost areas in the world. Frozen soil is a special medium, and serious problems may occur at any time on the frozen soil subgrade. At present, most of the permafrost railways in the world have a high disease rate. The rate reached 40.5%. Therefore, it is very important to timely and reliably detect the status of the permafrost roadbed of the railway and send the abnormal information to the monitoring center and the train running at high speed quickly and accurately. [0003] The monitoring content of railway permafrost embankment includes three aspects: [0004] ① Meteorological elements (temperature, air pressure, relative humidity, sola...

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Problems solved by technology

This solution also has the problem of complex sensor wiring and acquisition circuits. Although the use of GSM-R wireless communication can avoid the consumption of manpower and material resources caused by wired methods such as optical fibers, high usage fees are required

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