Multi-sensor real-time monitoring system for construction protection of bridges and culverts of business lines of railways

Abstract

The invention provides a multi-sensor real-time monitoring system for construction protection of bridges and culverts of business lines of railways and particularly relates to a LabVIEW-based multi-sensor real-time monitoring system for construction protection of bridges and culverts of business lines of railways. The system is composed of an automation monitoring device and a computer of a monitoring center, wherein the automation monitoring device is composed of a data collection device and a data transmission device, the data collection device is arranged at the construction site and is connected with the data transmission device through a cable, the data transmission device communicates with the computer through a wireless network, the data collection device obtains data information form the site and then transmits the data information to the data transmission device, and then the data transmission device transmits the data information to the computer through the wireless network. The multi-sensor real-time monitoring system can be recycled, is applicable to all-around real-time safety protection monitoring of major projects, overcomes a plurality of defects of traditional monitoring means and has the advantages of being high in precision, high in instantaneity, complete in monitored information and the like.

Description

technical field [0001] The invention relates to the technical field of safety protection monitoring for bridge and culvert construction of railway business line reconstruction. The core technical points lie in the design of a multi-sensor real-time monitoring system and the intelligent collection and processing of monitoring data in the bridge and culvert construction protection of railway business line. Background technique [0002] In the process of railway construction, bridge and culvert construction is an important part of the line, and its engineering forms include long culverts, underpass jacking, foundation reinforcement, etc., involving the use of artificial excavated piles as piers, and I-beam beams for overhead lines Jacking and excavation construction and other technologies. Especially for the reconstruction project of the business line railway, the bridge and culvert construction will have a significant impact on the operation of the business line, so it is nece...

AI Technical Summary

Problems solved by technology

[0003] During the construction of bridges and culverts on railway business lines, there are mainly the following potential safety hazards for railway traffic: (1) The railway traffic signals are out of order or disordered due to construction damage to railway communication and signal cables or the connection of railway tracks to electricity during operation, which interferes with trains normal operation of

(2) In the process of line reinforcement and bridge culvert jacking, it is inevitable to move the track and drive the change of the existing subgrade soil, which may cause the track gauge, elevation, level and other parameters of the line to exceed the technical requirements or the sleeper to go down the road The ballast is not dense enough to cause the car to shake

(3) All kinds of mechanical equipment, tools and construction materials used by personnel during the construction work are stacked carelessly, intruding into the train operation limit, or being swept into the track by the wind when the train passes, causing scratches to the train and injury to personnel , train overturning and other inertial accidents

(4) Line sinking, water gushing, sand and other abnormal conditions appear, which seriously threaten the safety of train operation

[0005] The first three methods mainly use conventional measurement methods, mainly operated by people on site. The main shortcomings are as follows: (1) Traditional manual monitoring is subject to subjective influence, and the accuracy will have slight deviations due to different people's measurements; ( 2) A large amount of manpower is required for on-site measurement, which cannot meet the needs of current construction; (3) Artificial measurement, the safety of the site is difficult to grasp, and real-time processing and feedback of data cannot be realized

The latter two methods can realize automatic monitoring by using today's advanced science and technology, but they mainly have the following disadvantages: (1) GPS accuracy is not enough, and the deformation or settlement of the railway track is accurate to mm level; (2) The use of sensor technology is The current relatively reliable method, but the monitoring and data analysis of a single type of sensor is not scientific enough, and a single type of sensor forms a set of systems, it is difficult to achieve real-time sharing and analysis of multiple types of sensor data monitoring, and it is impossible to achieve real-time multi-condition Call the police

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