High-speed rail infrastructure deformation monitoring method based on Beidou multi-antenna array

A technology for infrastructure and deformation monitoring, applied in electric/magnetic solid deformation measurement, radio wave measurement systems, measurement devices, etc., can solve the problems of low application scale of Beidou, high cost of Beidou receivers, and limitation of large-scale application of Beidou, etc. Achieve the effect of eliminating hardware delay error and phase deviation, improving positioning accuracy and improving reliability

Active Publication Date: 2021-06-22
CHINA RAILWAY DESIGN GRP CO LTD
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Problems solved by technology

For Beidou high-precision positioning, the short-baseline relative positioning method is mainly used, which can well eliminate or weaken the influence of atmospheric and other correlation errors. However, due to the complex observation environment of high-speed rail, the signal is easily affected by train shielding vibration and high-voltage electromagnetic. The relative positioning method cannot meet the monitoring accuracy requirements

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  • High-speed rail infrastructure deformation monitoring method based on Beidou multi-antenna array
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  • High-speed rail infrastructure deformation monitoring method based on Beidou multi-antenna array

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[0049] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some, not all, embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0050] In addition, in the exemplary embodiments, since the same reference numerals denote the same components with the same structure or the same steps of the same method, if one embodiment is exemplarily described, only the same elements as those already described will be described in other exemplary embodiments. Different structures or methods of the embodiments are described.

[0051] Throughout the specification and claims, when one element is described as being "connected" to another elemen...

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Abstract

The invention provides a high-speed rail infrastructure deformation monitoring system and method based on a Beidou multi-antenna array. The system comprises a Beidou antenna, a signal amplifier, a feeder line and a Beidou receiver which are connected in sequence. The plurality of Beidou antennas are respectively arranged under a high-speed rail line, on a roadbed and at the fixed end of a bridge; during monitoring, an absolute monitoring method or a relative monitoring method is adopted according to the length of the base line. Base line vectors between the base stations and between the base stations and the monitoring stations are obtained; and carrying out networking adjustment on the baseline vectors between the reference stations and between the reference stations and the monitoring stations, and respectively extracting a coordinate vector of each monitoring station to obtain a final deformation amount.

Description

technical field [0001] The invention relates to the technical field of deformation monitoring of high-speed rail infrastructure, in particular to a method for monitoring deformation of high-speed rail infrastructure based on a Beidou multi-antenna array. Background technique [0002] High-speed railway is the integration of high-tech in the current era, the crystallization of human wisdom and the symbol of railway modernization. By the end of 2020, the operating mileage of China's high-speed rail will reach 35,000 kilometers, accounting for more than 60% of the world's total mileage of high-speed rail. Under the condition of high-speed operation, due to the coupling effect of train impact, fatigue effect, temperature effect, regional geological conditions and other factors, bridges and subgrade foundations will inevitably produce damage accumulation and degradation of bearing capacity. Once the system service state is damaged, it will affect the The safe and stable operatio...

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Application Information

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IPC IPC(8): G01S19/14G01S19/37G01S19/44G01B7/16
CPCG01S19/14G01S19/37G01S19/44G01B7/16
Inventor 张云龙张冠军梁永洪江华赵梦杰
Owner CHINA RAILWAY DESIGN GRP CO LTD
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